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Note: This page contains sample records for the topic "rfp solar wind" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


1

Avista 2003 Wind RFP Final  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

7 2003 WIND RFP 7 2003 WIND RFP REQUEST FOR PROPOSALS Wind Power Up To 50 MW Avista Corporation August 2003 Introduction Avista's 2003 Integrated Resource Plan ("IRP") includes wind within its acquisition strategy beginning in the 2008-10 timeframe. Based on this result, the IRP includes an action item for Avista to investigate wind integration issues. In support of an integration issues study, Avista is interested in purchasing up to 50 MW of nameplate wind capability over a term of between two and five years to gain operational experience with this innovative resource. Because the Company has identified a wind resource preference beginning in 2008, options for project

2

RFP  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

40 40 3. SOLICITATION NO. 2. CONTRACT NO. DE-RP52-08NA28091 4. TYPE OF SOLICITATION SEALED BID (IFB) NEGOTIATED (RFP) 5. DATE ISSUED 6. REQUISITION/PURCHASE NO. 7. ISSUED BY FAD/SSD CODE 898358 8. ADDRESS OFFER TO (If other than Item 7) DEPARTMENT OF ENERGY NNSA SERVICE CENTER PO BOX 5400 ALBUQUERQUE, NM 87185-5400 MARIA A. VIGIL 505 845-4809 MVIGIL@DOEAL.GOV SEE BLOCK 7 NOTE: In sealed bid solicitations "offer" and "offeror" mean "bid" and "bidder". SOLICITATION 9. Environmental Characterization & Remediation Services for NNSA Nevada Site Office 100% Small Business Set-Aside 10. FOR INFORMATION CALL: A. NAME See Block 7

3

NREL Releases RFP for Distributed Wind Turbine Competitiveness Improvement Projects  

Broader source: Energy.gov [DOE]

In support of DOE's efforts to further develop distributed wind technology, NREL's National Wind Technology Center has released a Request for Proposal for the following Distributed Wind Turbine Competitiveness Improvement Projects on the Federal Business

4

Solar Wind | Open Energy Information  

Open Energy Info (EERE)

Place: Krasnodar, Romania Zip: 350000 Sector: Solar, Wind energy Product: Russia-based PV product manufacturer. Solar Wind manufactures solar modules and cells. References: Solar...

5

The Solar Wind Energy Flux  

Science Journals Connector (OSTI)

The solar-wind energy flux measured near the Ecliptic is known...Helios, Ulysses, and Wind...covering a large range of latitudes and time, we show that the solar-wind energy flux is independent of the solar-wind....

G. Le Chat; K. Issautier; N. Meyer-Vernet

2012-07-01T23:59:59.000Z

6

Petrovay: Solar physics Solar wind and heliosphere THE SOLAR WIND AND THE HELIOSPHERE  

E-Print Network [OSTI]

Petrovay: Solar physics Solar wind and heliosphere THE SOLAR WIND AND THE HELIOSPHERE 1951: First proposal of solar corpuscular radiation by Biermann, to explain slight deviation of comets' ion tails from radial (aberration effect). 1958: Parker's supersonic wind model 1962: Mariner-2 detects solar wind. v

Petrovay, Kristóf

7

Solar and Wind Easements | Department of Energy  

Broader source: Energy.gov (indexed) [DOE]

Solar and Wind Easements Solar and Wind Easements Solar and Wind Easements < Back Eligibility Commercial Fed. Government Industrial Local Government Nonprofit Residential Schools State Government Savings Category Heating & Cooling Commercial Heating & Cooling Solar Heating Buying & Making Electricity Water Heating Wind Program Info State Montana Program Type Solar/Wind Access Policy Provider Montana Department of Environmental Quality Montana's solar and wind easement provisions allow property owners to create solar and wind easements for the purpose of protecting and maintaining proper access to sunlight and wind. Solar easements should be negotiated with neighboring property owners. Montana's solar easement law was enacted in 1979; the wind easement law was originally enacted in 1983.

8

Gaseous isotope separation using solar wind phenomena  

Science Journals Connector (OSTI)

...isotope separation using solar wind phenomena Chia-Gee...essentially the same as that of the solar wind propagation, in which...the author was measuring solar wind parameters under Dr. H. S. Bridge at Massachusetts Institute of Technology in...

Chia-Gee Wang

1980-01-01T23:59:59.000Z

9

Supercomputers Capture Turbulence in the Solar Wind  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Capture Turbulence in the Solar Wind Supercomputers Capture Turbulence in the Solar Wind Berkeley Lab visualizations could help scientists forecast destructive space weather...

10

Forecasting Solar Wind Speeds  

E-Print Network [OSTI]

By explicitly taking into account effects of Alfven waves, I derive from a simple energetics argument a fundamental relation which predicts solar wind (SW) speeds in the vicinity of the earth from physical properties on the sun. Kojima et al. recently found from their observations that a ratio of surface magnetic field strength to an expansion factor of open magnetic flux tubes is a good indicator of the SW speed. I show by using the derived relation that this nice correlation is an evidence of the Alfven wave which accelerates SW in expanding flux tubes. The observations further require that fluctuation amplitudes of magnetic field lines at the surface should be almost universal in different coronal holes, which needs to be tested by future observations.

Takeru K. Suzuki

2006-02-03T23:59:59.000Z

11

MAGNETOHYDRODYNAMIC SIMULATIONS OF THE SOLAR CORONA AND SOLAR WIND USING A BOUNDARY TREATMENT TO LIMIT SOLAR WIND MASS FLUX  

E-Print Network [OSTI]

MAGNETOHYDRODYNAMIC SIMULATIONS OF THE SOLAR CORONA AND SOLAR WIND USING A BOUNDARY TREATMENT ABSTRACT Magnetohydrodynamic simulations of the solar corona and solar wind are sensitive to conditions -- MHD -- solar wind -- Sun: corona 1. INTRODUCTION Time-dependent multidimensional MHD simulation

California at Berkeley, University of

12

Solar cycle dependence of global distribution of solar wind speed  

Science Journals Connector (OSTI)

A review is given of observational results concerning the solar cycle dependence of the global structure of solar wind speed distribution during the years from 1973 to 1987. Since observations of solar wind speed

Masayoshi Kojima; Takakiyo Kakinuma

1990-08-01T23:59:59.000Z

13

Communications Consultant RFP  

Broader source: Energy.gov [DOE]

Communications Consultant RFP, from the Tool Kit Framework: Small Town University Energy Program (STEP).

14

Evaluation Consultant RFP  

Broader source: Energy.gov [DOE]

Evaluation Consultant RFP, from the Tool Kit Framework: Small Town University Energy Program (STEP).

15

ASYMMETRIC SOLAR WIND ELECTRON DISTRIBUTIONS  

SciTech Connect (OSTI)

The present paper provides a possible explanation for the solar wind electron velocity distribution functions possessing asymmetric energetic tails. By numerically solving the electrostatic weak turbulence equations that involve nonlinear interactions among electrons, Langmuir waves, and ion-sound waves, it is shown that different ratios of ion-to-electron temperatures lead to the generation of varying degrees of asymmetric tails. The present finding may be applicable to observations in the solar wind near 1 AU and in other regions of the heliosphere and interplanetary space.

Yoon, Peter H.; Kim, Sunjung; Lee, Junggi; Lee, Junhyun; Park, Jongsun; Park, Kyungsun; Seough, Jungjoon [School of Space Research, Kyung Hee University, Yongin-Si, Gyeonggi-Do 446-701 (Korea, Republic of); Hong, Jinhy [Department of Physics, Korea Advanced Institute of Science and Technology, Daejeon 305-701 (Korea, Republic of)

2012-08-20T23:59:59.000Z

16

Solar wind electron density and temperature over solar cycle 23: Thermal noise measurements on Wind  

E-Print Network [OSTI]

Solar wind electron density and temperature over solar cycle 23: Thermal noise measurements on Wind; received in revised form 6 April 2005; accepted 25 April 2005 Abstract We present the solar wind plasma parameters obtained from the Wind spacecraft during more than nine years, encompassing almost the whole solar

California at Berkeley, University of

17

Western Wind and Solar Integration Study  

SciTech Connect (OSTI)

This report provides a full description of the Western Wind and Solar Integration Study (WWSIS) and its findings.

GE Energy

2010-05-01T23:59:59.000Z

18

RFP White Paper 5  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

REVERSED FIELD PINCH Status and Plans for RFP Research in the U.S. prepared by Members of the U.S. RFP Research Community April, 1998 2 THE REVERSED FIELD PINCH Status and Plans...

19

Utility Wind Integration Group Distributed Wind/Solar Interconnection  

Broader source: Energy.gov (indexed) [DOE]

Utility Wind Integration Group Distributed Wind/Solar Utility Wind Integration Group Distributed Wind/Solar Interconnection Workshop Utility Wind Integration Group Distributed Wind/Solar Interconnection Workshop May 21, 2013 8:00AM MDT to May 22, 2013 5:00PM MDT Golden, Colorado This two-day workshop will answer your questions about interconnecting wind and solar plants and other distributed generation applications to electric distribution systems while providing insight on integrating large-scale renewable generation into the transmission system. Held at the National Renewable Energy Laboratory's (NREL) state-of-the-art Energy Systems Integration Facility (ESIF) on the first day and at the Western Area Power Administration's Electric Power Training Center (EPTC) on the second day, the workshop will provide an overview of wind and solar interconnection

20

The Solar Wind Helium Abundance: Variation with Wind Speed and the Solar Cycle  

E-Print Network [OSTI]

The Solar Wind Helium Abundance: Variation with Wind Speed and the Solar Cycle Matthias R. Aellig Alamos National Lab., Los Alamos, NM 87545 Abstract We investigate the helium abundance in the solar wind of 1994 and early 2000 are analyzed. In agreement with similar work for previous solar cycles, we find

Richardson, John

Note: This page contains sample records for the topic "rfp solar wind" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


21

How Do Wind and Solar Power Affect Grid Operations: The Western Wind and Solar Integration Study  

SciTech Connect (OSTI)

The Western Wind and Solar Integration Study is one of the largest regional wind and solar integration studies to date, examining the operational impact of up to 35% wind, photovoltaics, and concentrating solar power on the WestConnect grid in Arizona, Colorado, Nevada, New Mexico, and Wyoming. This paper reviews the scope of the study, the development of wind and solar datasets, and the results to date on three scenarios.

Lew, D.; Milligan, M.; Jordan, G.; Freeman, L.; Miller, N.; Clark, K.; Piwko, R.

2009-01-01T23:59:59.000Z

22

Firming Wind Energy with Solar Photovoltaics.  

E-Print Network [OSTI]

??A number of research and development groups and several renewable project operators have examined combining wind power production with on-site solar power production. Past research… (more)

Pattison, Chris

2011-01-01T23:59:59.000Z

23

Solar and Wind Rights | Department of Energy  

Broader source: Energy.gov (indexed) [DOE]

and Wind Rights and Wind Rights Solar and Wind Rights < Back Eligibility Commercial Fed. Government General Public/Consumer Industrial Local Government Nonprofit Residential Schools State Government Savings Category Heating & Cooling Commercial Heating & Cooling Solar Heating Buying & Making Electricity Water Heating Wind Program Info State Wisconsin Program Type Solar/Wind Access Policy Provider Public Service Commission of Wisconsin Wisconsin has several laws that protect a resident's right to install and operate a solar or wind energy system. These laws cover zoning restrictions by local governments, private land use restrictions, and system owner rights to unobstructed access to resources. Wisconsin permitting rules and model policy for small wind can be found [http://dsireusa.org/incentives/incentive.cfm?Incentive_Code=WI16R&re=1&ee=1

24

Gold SolarWind GmbH | Open Energy Information  

Open Energy Info (EERE)

Gold SolarWind GmbH Place: Aiterhofen, Germany Zip: 94330 Sector: Wind energy Product: German project developer of PV and wind plants. References: Gold SolarWind GmbH1 This...

25

THE SOLAR WIND PLASMA Dr. Joe Borovsky  

E-Print Network [OSTI]

involved multidipole plasma devices. Current research interests focus on structure in the solar wind THE SOLAR WIND PLASMA Dr. Joe Borovsky Los Alamos National Laboratory and University, magnetized, collisionless plasma, important for the geomagnetic activity that it drives at Earth and for its

Shyy, Wei

26

The Solar Wind-Magnetosphere-Ionosphere System  

Science Journals Connector (OSTI)

...Earth's magnetic field acts as the wires to transmit the solar wind energy to the ionosphere, where the energy is dissipated...Earth's magnetic field acts as the wires to transmit the solar wind energy to the ionosphere, where the energy is dissipated...

John G. Lyon

2000-06-16T23:59:59.000Z

27

The Structure of the Solar Wind in the Inner Heliosphere  

E-Print Network [OSTI]

through the solar wind and produce extreme conditions thatspeed wind during the SC 22 period. Extreme-ultraviolet (

Lee, Christina On-Yee

2010-01-01T23:59:59.000Z

28

Self Consistent Models of the Solar Wind  

E-Print Network [OSTI]

The origins of the hot solar corona and the supersonically expanding solar wind are still the subject of much debate. This paper summarizes some of the essential ingredients of realistic and self-consistent models of solar wind acceleration. It also outlines the major issues in the recent debate over what physical processes dominate the mass, momentum, and energy balance in the accelerating wind. A key obstacle in the way of producing realistic simulations of the Sun-heliosphere system is the lack of a physically motivated way of specifying the coronal heating rate. Recent models that assume the energy comes from Alfven waves that are partially reflected, and then dissipated by magnetohydrodynamic turbulence, have been found to reproduce many of the observed features of the solar wind. This paper discusses results from these models, including detailed comparisons with measured plasma properties as a function of solar wind speed. Some suggestions are also given for future work that could answer the many remain...

Cranmer, Steven R

2010-01-01T23:59:59.000Z

29

The Solar Wind Power from Magnetic Flux  

Science Journals Connector (OSTI)

Observations of the fast, high-latitude solar wind throughout Ulysses' three orbits show that solar wind power correlates remarkably well with the Sun's total open magnetic flux. These observations support a recent model of the solar wind energy and particle sources, where magnetic flux emergence naturally leads to an energy flux proportional to the strength of the large-scale magnetic field. This model has also been shown to be consistent with X-ray observations of the Sun and a variety of other stars over 12 decades of magnetic flux. The observations reported here show that the Sun delivers ~600 kW Wb?1 to power the solar wind, and that this power to magnetic flux relation has been extremely stable over the last 15 years. Thus, the same law that governs energy released in the corona and from other stars also applies to the total energy in the solar wind.

N. A. Schwadron; D. J. McComas

2008-01-01T23:59:59.000Z

30

Solar and Wind Energy Utilization and Project Development Scenarios...  

Open Energy Info (EERE)

Solar and Wind Energy Utilization and Project Development Scenarios (Abstract): Solar and wind energy resources in Ethiopia have not been given due attention in the past. Some of...

31

Solar wind samples give insight into birth of solar system  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Solar wind samples Solar wind samples Solar wind samples give insight into birth of solar system Most of the Genesis payload consisted of fragile solar-wind collectors, which had been exposed to the solar particles over a period of two years. June 23, 2011 Los Alamos National Laboratory sits on top of a once-remote mesa in northern New Mexico with the Jemez mountains as a backdrop to research and innovation covering multi-disciplines from bioscience, sustainable energy sources, to plasma physics and new materials. Los Alamos National Laboratory sits on top of a once-remote mesa in northern New Mexico with the Jemez mountains as a backdrop to research and innovation covering multi-disciplines from bioscience, sustainable energy sources, to plasma physics and new materials.

32

Nebraska Wind and Solar | Open Energy Information  

Open Energy Info (EERE)

Solar Solar Jump to: navigation, search Logo: Nebraska Wind and Solar Name Nebraska Wind and Solar Address 2026 East 29th Street Place Scottsbluff, Nebraska Zip 69361 Sector Wind energy Product Small Wind and Solar Year founded 2006 Number of employees 1-10 Website http://www.nebraskawindandsola Coordinates 41.8754°, -103.637° Loading map... {"minzoom":false,"mappingservice":"googlemaps3","type":"ROADMAP","zoom":14,"types":["ROADMAP","SATELLITE","HYBRID","TERRAIN"],"geoservice":"google","maxzoom":false,"width":"600px","height":"350px","centre":false,"title":"","label":"","icon":"","visitedicon":"","lines":[],"polygons":[],"circles":[],"rectangles":[],"copycoords":false,"static":false,"wmsoverlay":"","layers":[],"controls":["pan","zoom","type","scale","streetview"],"zoomstyle":"DEFAULT","typestyle":"DEFAULT","autoinfowindows":false,"kml":[],"gkml":[],"fusiontables":[],"resizable":false,"tilt":0,"kmlrezoom":false,"poi":true,"imageoverlays":[],"markercluster":false,"searchmarkers":"","locations":[{"text":"","title":"","link":null,"lat":41.8754,"lon":-103.637,"alt":0,"address":"","icon":"","group":"","inlineLabel":"","visitedicon":""}]}

33

Wind and Solar Curtailment: Preprint  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Integration of Wind Power Into Power Systems as Well as on Transmission Networks for Offshore Wind Power Plants London, England October 22 - 24, 2013 Conference Paper NREL...

34

Thermal Energy Transport in the Solar Wind  

Science Journals Connector (OSTI)

This paper is intended to summarize the present status of measurements of heat flux in the solar wind and to provide a comparison of these measurements with the theory for collision-dominated heat transport in...

Michael D. Montgomery

1972-01-01T23:59:59.000Z

35

Wind and Solar Energy Curtailment Practices (Presentation)  

SciTech Connect (OSTI)

This presentation to the fall 2014 technical meeting of the Utility Variable-Generation Integration Group summarizes experience with curtailment of wind and solar in the U.S.

Bird, L.; Cochran, J.; Wang, X.

2014-10-01T23:59:59.000Z

36

Absorption and Dissipation of Solar Wind Energy  

Science Journals Connector (OSTI)

A considerable amount of energy is released as a result of the interaction of the solar wind with the magnetosphere. This provides the basis for a number of important phenomena in the magnetosphere and polar u...

Professor Dr. Gerd W. Prölss

2004-01-01T23:59:59.000Z

37

Western Wind and Solar Integration Study  

SciTech Connect (OSTI)

The Western Wind and Solar Integration Study (WWSIS) is one of the largest regional wind and solar integration studies to date. It was initiated in 2007 to examine the operational impact of up to 35% energy penetration of wind, photovoltaics (PV), and concentrating solar power (CSP) on the power system operated by the WestConnect group of utilities in Arizona, Colorado, Nevada, New Mexico, and Wyoming (see study area map). WestConnect also includes utilities in California, but these were not included because California had already completed a renewable energy integration study for the state. This study was set up to answer questions that utilities, public utilities commissions, developers, and regional planning organizations had about renewable energy use in the west: (1) Does geographic diversity of renewable energy resource help mitigate variability; (2) How do local resources compare to out-of-state resources; (3) Can balancing area cooperation help mitigate variability; (4) What is the role and value of energy storage; (5) Should reserve requirements be modified; (6) What is the benefit of forecasting; and (7) How can hydropower help with integration of renewables? The Western Wind and Solar Integration Study is sponsored by the U.S. Department of Energy (DOE) and run by NREL with WestConnect as a partner organization. The study follows DOE's 20% Wind Energy by 2030 report, which did not find any technical barriers to reaching 20% wind energy in the continental United States by 2030. This study and its partner study, the Eastern Wind Integration and Transmission Study, performed a more in-depth operating impact analysis to see if 20% wind energy was feasible from an operational level. In DOE/NREL's analysis, the 20% wind energy target required 25% wind energy in the western interconnection; therefore, this study considered 20% and 30% wind energy to bracket the DOE analysis. Additionally, since solar is rapidly growing in the west, 5% solar was also considered in this study. The goal of the Western Wind and Solar Integration Study is to understand the costs and operating impacts due to the variability and uncertainty of wind, PV, and CSP on the grid. This is mainly an operations study, (rather than a transmission study), although different scenarios model different transmission build-outs to deliver power. Using a detailed power system production simulation model, the study identifies operational impacts and challenges of wind energy penetration up to 30% of annual electricity consumption.

Lew, D.; Piwko, R.; Jordan, G.; Miller, N.; Clark, K.; Freeman, L.; Milligan, M.

2011-01-01T23:59:59.000Z

38

Gaseous isotope separation using solar wind phenomena  

Science Journals Connector (OSTI)

...industrial process with a solar dimension, but machines...of a centrifugal pump-like housing to...phe- nomena in the solar wind as a guide to...of a centrifugal pump evacuating the chamber...ratio of specific heats for diatomic molecules...velocity flow must be assisted by the use of light...

Chia-Gee Wang

1980-01-01T23:59:59.000Z

39

REQUEST FOR PROPOSALS FOR RENEWABLE ENERGY GENERATION (WIND AND SOLAR ONLY) FOR JEA JACKSONVILLE, FLORIDA  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

REQUEST FOR PROPOSALS FOR REQUEST FOR PROPOSALS FOR RENEWABLE ENERGY GENERATION (WIND AND SOLAR ONLY) FOR JEA JACKSONVILLE, FLORIDA MARCH 17, 2008 (RELEASED) MAY 16, 2008 (DUE DATE) 3/17/2008 1 TABLE OF CONTENTS TITLE SECTION REQUEST FOR PROPOSAL 1.0 INFORMATION AND INSTRUCTIONS TO BIDDERS I 2.0 PROPOSAL TECHNICAL AND PRICING REQUIREMENTS II 3.0 PROPOSAL TECHNICAL AND PRICING FORMS III 4.0 PROPOSAL TECHNICAL AND PRICING REQUIREMENTS AND IV FORMS (FOR SOLAR EQUIPMENT ONLY PROPOSALS) SUPPLEMENTAL FORMS: CONFLICT OF INTEREST FORM CONFIDENTIALITY AGREEMENT 3/17/2008 2 REQUEST FOR PROPOSALS SEALED PROPOSALS will be received for this RFP until: LOCAL TIME 5:00 PM DAY OF WEEK FRIDAY DATE MAY 16, 2008 Proposals must be received at the following address:

40

Solar Wind Forecasting with Coronal Holes  

E-Print Network [OSTI]

An empirical model for forecasting solar wind speed related geomagnetic events is presented here. The model is based on the estimated location and size of solar coronal holes. This method differs from models that are based on photospheric magnetograms (e.g., Wang-Sheeley model) to estimate the open field line configuration. Rather than requiring the use of a full magnetic synoptic map, the method presented here can be used to forecast solar wind velocities and magnetic polarity from a single coronal hole image, along with a single magnetic full-disk image. The coronal hole parameters used in this study are estimated with Kitt Peak Vacuum Telescope He I 1083 nm spectrograms and photospheric magnetograms. Solar wind and coronal hole data for the period between May 1992 and September 2003 are investigated. The new model is found to be accurate to within 10% of observed solar wind measurements for its best one-month periods, and it has a linear correlation coefficient of ~0.38 for the full 11 years studied. Using a single estimated coronal hole map, the model can forecast the Earth directed solar wind velocity up to 8.5 days in advance. In addition, this method can be used with any source of coronal hole area and location data.

S. Robbins; C. J. Henney; J. W. Harvey

2007-01-09T23:59:59.000Z

Note: This page contains sample records for the topic "rfp solar wind" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


41

OPUC Approved RFP  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

June 4, 2003 Attached is a copy of PGE's Request for Proposals for Tradable Renewable Credits and retail marketing services for the Blended Renewable and Environmental Mitigation portfolio options. Please note that in addition to the requirements contained in the attached RFP, all bidders are requested to provide Notice of Intent to Respond in order to be notified of updates to this RFP. Future correspondence, including clarifications, related to this RFP will be sent only to Respondents that provide Notice of Intent to Respond. Respondents desiring to provide notice may write, telephone, fax or e-mail to: Thor Hinckley PGE 121 SW Salmon 3WTCBR02 Portland, OR 97204 503 464 8089 voice 503 464 2285 fax thor_hinckley@pgn.com 2 Portland General Electric Company

42

Solar/Wind Contractor Licensing | Open Energy Information  

Open Energy Info (EERE)

Solar/Wind Contractor Licensing Solar/Wind Contractor Licensing < Solar Jump to: navigation, search Some states have established a licensing process for solar-energy contractors and/or wind-energy contractors. These requirements are designed to ensure that contractors have the necessary knowledge and experience to install systems properly. Solar licenses typically take the form of either a separate, specialized solar contractor's license, or a specialty classification under a general electrical or plumbing license. [1] Solar/Wind Contractor Licensing Incentives CSV (rows 1 - 24) Incentive Incentive Type Place Applicable Sector Eligible Technologies Active Alternative Energy System Contracting (Virginia) Solar/Wind Contractor Licensing Virginia Installer/Contractor Photovoltaics No

43

Fact Sheet: Multilateral Solar and Wind Working Group | Department of  

Broader source: Energy.gov (indexed) [DOE]

Multilateral Solar and Wind Working Group Multilateral Solar and Wind Working Group Fact Sheet: Multilateral Solar and Wind Working Group A fact sheet detailling the development of a Multilateral Solar and Wind Working Group to promote accelerated deployment of solar and wind technologies by implementing recommendations from the MEF Technology Action Plan on Solar and Wind Technologies that was released by the Major Economies Forum Global Partnership in December 2009. The Multilateral Solar and Wind Working Group will focus its initial work on developing a Global Atlas for Solar and Wind Energy and a corresponding Long-Term Strategy on Joint Capacity Building. Fact Sheet: Multilateral Solar and Wind Working Group More Documents & Publications Renewables-Fact-Sheet.pdf Clean Energy Ministerial Press Fact Sheer

44

Oxygen Loss from Venus and the Influence of Extreme Solar Wind Conditions  

E-Print Network [OSTI]

the influence of extreme solar wind conditions on O + escapeand the Influence of Extreme Solar Wind Conditions by Tessand the Influence of Extreme Solar Wind Conditions Copyright

McEnulty, Tess

2012-01-01T23:59:59.000Z

45

Measuring the Isotopic Composition of Solar Wind Noble Gases  

E-Print Network [OSTI]

noble gases. #12;Exploring the Solar Wind94 Light solar wind noble gases were directly measured by mass of the light gases are known to vary with energy, so none of these provided solar isotopic and elemental5 Measuring the Isotopic Composition of Solar Wind Noble Gases Alex Meshik, Charles Hohenberg, Olga

46

Titan interaction with the supersonic solar wind  

E-Print Network [OSTI]

After 9 years in the Saturn system, the Cassini spacecraft finally observed Titan in the supersonic solar wind. These unique observations reveal that Titan interaction with the solar wind is in many ways similar to un-magnetized planets Mars and Venus in spite of the differences in the properties of the solar plasma in the outer solar system. In particular, Cassini detected a collisionless, supercritical bow shock and a well-defined induced magnetosphere filled with mass-loaded interplanetary magnetic field lines, which drape around Titan ionosphere. Although the flyby altitude may not allow the detection of an ionopause, Cassini reports enhancements of plasma density compatible with plasma clouds or streamers in the flanks of its induced magnetosphere or due to an expansion of the induced magnetosphere. Because of the upstream conditions, these observations are also relevant for unmagnetized bodies in the outer solar system such as Pluto, where kinetic processes are expected to dominate.

Bertucci, C; Kurth, W S; Hospodarsky, G; Mitchell, D; Sergis, N; Edberg, N J T; Dougherty, M K

2014-01-01T23:59:59.000Z

47

Denver Solar and Wind | Open Energy Information  

Open Energy Info (EERE)

and Wind and Wind Jump to: navigation, search Logo: Denver Solar and Wind Name Denver Solar and Wind Address 12445 E. 39th Ave, Suite 310 Denver, Colorado 80239 Place Denver, Colorado Sector Efficiency, Renewable energy, Services, Solar, Wind energy Product Solar array and wind turbine purchasing and installation. Year founded 2009 Phone number 303-507-2874 Website http://www.Denversolarandwind. Coordinates 39.7722089°, -104.843365° Loading map... {"minzoom":false,"mappingservice":"googlemaps3","type":"ROADMAP","zoom":14,"types":["ROADMAP","SATELLITE","HYBRID","TERRAIN"],"geoservice":"google","maxzoom":false,"width":"600px","height":"350px","centre":false,"title":"","label":"","icon":"","visitedicon":"","lines":[],"polygons":[],"circles":[],"rectangles":[],"copycoords":false,"static":false,"wmsoverlay":"","layers":[],"controls":["pan","zoom","type","scale","streetview"],"zoomstyle":"DEFAULT","typestyle":"DEFAULT","autoinfowindows":false,"kml":[],"gkml":[],"fusiontables":[],"resizable":false,"tilt":0,"kmlrezoom":false,"poi":true,"imageoverlays":[],"markercluster":false,"searchmarkers":"","locations":[{"text":"","title":"","link":null,"lat":39.7722089,"lon":-104.843365,"alt":0,"address":"","icon":"","group":"","inlineLabel":"","visitedicon":""}]}

48

Wind Issues in Solar Thermal Performance Ratings: Preprint  

SciTech Connect (OSTI)

We suggest that wind bias against unglazed solar water heaters be mitigated by using a calibrated collector model to derive a wind correction to the measured efficiency curve.

Burch, J.; Casey, R.

2009-04-01T23:59:59.000Z

49

Supercomputers Capture Turbulence in the Solar Wind  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Supercomputers Capture Supercomputers Capture Turbulence in the Solar Wind News & Publications ESnet in the News ESnet News Media & Press Publications and Presentations Galleries ESnet Awards and Honors Contact Us Technical Assistance: 1 800-33-ESnet (Inside the US) 1 800-333-7638 (Inside the US) 1 510-486-7600 (Globally) 1 510-486-7607 (Globally) Report Network Problems: trouble@es.net Provide Web Site Feedback: info@es.net Supercomputers Capture Turbulence in the Solar Wind Berkeley Lab visualizations could help scientists forecast destructive space weather December 16, 2013 | Tags: ESnet News, National Energy Research Scientific Computing Linda Vu, +1 510 495 2402, lvu@lbl.gov eddies1.jpg This visualization zooms in on current sheets revealing the "cascade of turbulence" in the solar wind occurring down to electron scales. This is

50

Supercomputers Capture Turbulence in the Solar Wind  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Supercomputers Supercomputers Capture Turbulence in the Solar Wind Supercomputers Capture Turbulence in the Solar Wind Berkeley Lab visualizations could help scientists forecast destructive space weather December 16, 2013 Linda Vu, +1 510 495 2402, lvu@lbl.gov eddies1.jpg This visualization zooms in on current sheets revealing the "cascade of turbulence" in the solar wind occurring down to electron scales. This is a phenomenon common in fluid dynamics-turbulent energy injected at large eddies is transported to successively smaller scales until it is dissipated as heat. (Image by Burlen Loring, Berkeley Lab) As inhabitants of Earth, our lives are dominated by weather. Not just in the form of rain and snow from atmospheric clouds, but also a sea of charged particles and magnetic fields generated by a star sitting 93

51

Unique observations of a geomagnetic SI+ Solar sources and associated solar wind fluctuations  

E-Print Network [OSTI]

, arising entirely from nonexplosive solar events. [4] Though the very first observations, by the Mariner 2Unique observations of a geomagnetic SI+ - SI- pair: Solar sources and associated solar wind- pair was closely correlated with corresponding variations in the solar wind density, while solar wind

Padmanabhan, Janardhan

52

Solar and Wind Easements and Local Option Rights Laws  

Broader source: Energy.gov [DOE]

Minnesota law provides for the creation of solar and wind easements for solar and wind-energy systems. As in many other states, these easements are voluntary contracts. However, unlike similar...

53

An Investigation into Solar Wind Plasma Periodicities Karolen I. Paularena  

E-Print Network [OSTI]

An Investigation into Solar Wind Plasma Periodicities Karolen I. Paularena Center for Space Research, Massachusetts Institute of Technology, Cambridge, Massachusetts Received ; accepted To be submitted to Journal of Geophysical Research, 1996. Short title: SOLAR WIND PLASMA PERIODICITIES #12

Richardson, John

54

Excise Tax Exemption for Solar- or Wind-Powered Systems  

Broader source: Energy.gov [DOE]

Massachusetts law exempts any "solar or wind powered climatic control unit and any solar or wind powered water heating unit or any other type unit or system powered thereby," that qualifies for the...

55

EECBG Success Story: Hybrid Solar-Wind Generates Savings for...  

Broader source: Energy.gov (indexed) [DOE]

Hybrid Solar-Wind Generates Savings for South Dakota City EECBG Success Story: Hybrid Solar-Wind Generates Savings for South Dakota City July 19, 2010 - 4:05pm Addthis The small...

56

Control Strategy for Wind and Solar Hybrid Generation System  

Science Journals Connector (OSTI)

Solar energy and wind energy are the two most viable renewable ... . This paper presents a control strategy for wind & solar hybrid power generating systems. If the power generation sources produce more ... strat...

Xin Gao

2011-01-01T23:59:59.000Z

57

WindSolar Hybrid Systems in Tunisia: An Optimization Protocol  

Science Journals Connector (OSTI)

In this work, potentials, state-of-the-art and development of hybrid wind-solar plants in the eastern-North Africa zone ... adopted: the protocol exploits data -such as solar radiation and cumulative mean wind sp...

Karemt Boubaker; Andrea Colantoni…

2013-01-01T23:59:59.000Z

58

Solar and Wind Technologies for Hydrogen Production Report to Congress  

Fuel Cell Technologies Publication and Product Library (EERE)

DOE's Solar and Wind Technologies for Hydrogen Production Report to Congress summarizes the technology roadmaps for solar- and wind-based hydrogen production. Published in December 2005, it fulfills t

59

Dayside Aurora as an Indicator of Asymmetric Solar Wind-  

E-Print Network [OSTI]

magnetosphere responds directly to incident interplanetary magnetic field (IMF) and solar wind energy Changes the magnetosphere-ionosphere system responds to IMF and solar wind energy input #12;Introduction (part 2) Focus

Fillingim, Matthew

60

FACT SHEET: MULTILATERAL SOLAR AND WIND WORKING GROUP  

Broader source: Energy.gov (indexed) [DOE]

FACT SHEET: MULTILATERAL SOLAR AND WIND WORKING GROUP At the Clean Energy Ministerial in Washington, D.C. on July 19 th and 20 th , ministers announced the development of a Multilateral Solar and Wind Working Group to promote accelerated deployment of solar and wind technologies by implementing recommendations from the MEF Technology Action Plan on Solar and Wind Technologies that was released by the Major Economies Forum Global Partnership in December 2009. The

Note: This page contains sample records for the topic "rfp solar wind" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


61

FACT SHEET: MULTILATERAL SOLAR AND WIND WORKING GROUP  

Broader source: Energy.gov (indexed) [DOE]

FACT SHEET: MULTILATERAL SOLAR AND WIND WORKING GROUP At the Clean Energy Ministerial in Washington, D.C. on July 19 th and 20 th , ministers announced the development of a Multilateral Solar and Wind Working Group to promote accelerated deployment of solar and wind technologies by implementing recommendations from the MEF Technology Action Plan on Solar and Wind Technologies that was released by the Major Economies Forum Global Partnership in December 2009. The

62

Energy Transfer via Solar Wind Driven Ultra Low Frequency Waves in the Earth's Magnetosphere  

E-Print Network [OSTI]

many pathways through which solar wind energy can drive wavemany pathways through which solar wind energy can drive wave

Hartinger, Michael David

2012-01-01T23:59:59.000Z

63

Solar and Wind Contractor Licensing | Department of Energy  

Broader source: Energy.gov (indexed) [DOE]

Solar and Wind Contractor Licensing Solar and Wind Contractor Licensing Solar and Wind Contractor Licensing < Back Eligibility Installer/Contractor Savings Category Heating & Cooling Commercial Heating & Cooling Solar Heating Buying & Making Electricity Water Heating Wind Program Info State Connecticut Program Type Solar/Wind Contractor Licensing Provider Connecticut Department of Consumer Protection The Connecticut Department of Consumer Protection (DCP) is authorized to issue licenses for solar-thermal work, solar-electric work and wind-electric work. "Solar thermal work" is defined as "the installation, erection, repair, replacement, alteration, or maintenance of active, passive and hybrid solar systems that directly convert ambient energy into heat or convey, store or distribute such ambient energy." Solar electricity

64

Solar Wind and Micrometeorite Effects in the Lunar Regolith  

Science Journals Connector (OSTI)

31 March 1977 research-article Solar Wind and Micrometeorite Effects in the...physical and chemical effects expected during solar wind bombardment of the lunar regolith...grain surfaces, this outline predicts that solar wind sputtering will tend to clean exposed...

1977-01-01T23:59:59.000Z

65

Solar Wind and Micrometeorite Effects in the Lunar Regolith  

Science Journals Connector (OSTI)

31 March 1977 research-article Solar Wind and Micrometeorite Effects in the Lunar...chemical effects expected during solar wind bombardment of the lunar regolith. In...surfaces, this outline predicts that solar wind sputtering will tend to clean exposed grain...

1977-01-01T23:59:59.000Z

66

SUBMITTED TO GRL 1 Thermal Anisotropies in the Solar Wind  

E-Print Network [OSTI]

SUBMITTED TO GRL 1 E Thermal Anisotropies in the Solar Wind: vidence of Heating by Interstellar cyclotron instabilit s generated by newly created pickup ions and heats the thermal solar wind protons TO GRL 2 T Introduction he thermal anisotropy of the solar wind is the ratio between the temperatures p

Richardson, John

67

Proton corebeam system in the expanding solar wind: Hybrid simulations  

E-Print Network [OSTI]

Proton corebeam system in the expanding solar wind: Hybrid simulations Petr Hellinger1,2 and Pavel. Trávnícek (2011), Proton corebeam system in the expanding solar wind: Hybrid simulations, J. Geophys. Res beamcore system in the solar wind are presented. The expansion with a strictly radial magnetic field leads

California at Berkeley, University of

68

Magnetospheric responses to sudden and quasiperiodic solar wind variations  

E-Print Network [OSTI]

Magnetospheric responses to sudden and quasiperiodic solar wind variations K.-H. Kim,1 C. A.e., magnetosphere, magnetosheath, and solar wind) because of the solar wind dynamic pressure variations and its high orbital inclination near the subsolar magnetopause meridian. When Polar was in the magnetosheath

California at Berkeley, University of

69

Solar wind and the motion of dust grains  

Science Journals Connector (OSTI)

......we concentrated on the action of the solar wind on the motion of an IDP for cases when the variable flux of the solar wind energy and the non-radial solar wind velocity are considered. Particle erosion does not have a large influence on the......

J. Klacka; J. Petrzala; P. Pástor; L. Kómar

2012-04-01T23:59:59.000Z

70

PSFCP -- RFP Draft  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Final RFP Final RFP REQUEST FOR PROPOSAL (pdf, 286kb) Attachment L-1 Corporate Partnership, Joint Venture Certificates (doc, 33kb) Attachment L-2 Staffing Plan Summary (xls, 123kb) Attachment L-3 Program Manager Resume (doc, 28.5kb) Attachment L-4 Corporate Experience and Performance Self Assessment Form (doc, 40kb) Attachment L-5 Corporate Experience Matrix (doc, 38kb) Attachment L-6 Past Performance Questionnaire (doc, 54.5kb) Attachment L-7 Cost Element Table (xls, 66.5kb) Attachment J-1 Performance Based Work Statement (pdf, 56.3kb) Attachment J-2 Reporting Requirements Checklist (pdf, 16.8kb) Attachment J-3 Government Furnished Property (pdf, 35.7kb) Attachment J-4 Wage Determination No. 2005-2361 Revision 7 (pdf, 22kb) Attachment J-5 Contract Security Classification Specification (CSCS)

71

RFP Invitation Letter  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

3, 2013 3, 2013 Subject: Notice to Prospective Offerors DRAFT Technical Requirements - Trinity and NERSC-8 Computing Platforms Greetings: Los Alamos National Security, LLC (LANS), a prime contractor to the National Nuclear Security Administration (NNSA), anticipates issuing a joint Request for Proposal (RFP) in late June 2013 for two large supercomputing platforms to be known as the Trinity and NERSC-8 Computing Platforms. The joint RFP will be issued by LANS on behalf of the following two entities: 1. The New Mexico Alliance for Computing at Extreme Scales (ACES) comprised of: * Los Alamos National Laboratory (LANL) and * Sandia National Laboratories (SNL) 2. The National Energy Research Computing Center (NERSC) at Lawrence Berkeley National Laboratory (LBNL)

72

Combined Solar and Wind Energy Systems  

Science Journals Connector (OSTI)

In this paper we present the new concept of combined solar and wind energy systems for buildings applications. Photovoltaics (PV) and small wind turbines (WTs) can be install on buildings in case of sufficient wind potential providing the building with electricity. PVs can be combined with thermal collectors to form the hybrid photovoltaic/thermal (PV/T) systems. The PVs (or the PV/Ts) and WT subsystems can supplement each other to cover building electrical load. In case of using PV/T collectors the surplus of electricity if not used or stored in batteries can increase the temperature of the thermal storage tank of the solar thermal unit. The description of the experimental set?up of the suggested PV/T/WT system and experimental results are presented. In PV/T/WT systems the output from the solar part depends on the sunshine time and the output of the wind turbine part depends on the wind speed and is obtained any time of day or night. The use of the three subsystems can cover a great part of building energy load contributing to conventional energy saving and environment protection. The PV/T/WT systems are considered suitable in rural and remote areas with electricity supply from stand?alone units or mini?grid connection. PV/T/WT systems can also be used in typical grid connected applications.

Y. Tripanagnostopoulos; M. Souliotis; Th. Makris

2010-01-01T23:59:59.000Z

73

Dovetail Solar and Wind | Open Energy Information  

Open Energy Info (EERE)

Dovetail Solar and Wind Dovetail Solar and Wind Jump to: navigation, search Name Dovetail Solar and Wind Address 16675 Canaanville Hills Rd. Place Athens, Ohio Zip 45701 Sector Bioenergy, Solar, Wind energy Product Consulting; Engineering/architectural/design;Installation; Maintenance and repair; Retail product sales and distribution;Trainining and education Phone number 740-592-1800 Website http://www.dovetailsolar.com Coordinates 39.315848°, -81.985569° Loading map... {"minzoom":false,"mappingservice":"googlemaps3","type":"ROADMAP","zoom":14,"types":["ROADMAP","SATELLITE","HYBRID","TERRAIN"],"geoservice":"google","maxzoom":false,"width":"600px","height":"350px","centre":false,"title":"","label":"","icon":"","visitedicon":"","lines":[],"polygons":[],"circles":[],"rectangles":[],"copycoords":false,"static":false,"wmsoverlay":"","layers":[],"controls":["pan","zoom","type","scale","streetview"],"zoomstyle":"DEFAULT","typestyle":"DEFAULT","autoinfowindows":false,"kml":[],"gkml":[],"fusiontables":[],"resizable":false,"tilt":0,"kmlrezoom":false,"poi":true,"imageoverlays":[],"markercluster":false,"searchmarkers":"","locations":[{"text":"","title":"","link":null,"lat":39.315848,"lon":-81.985569,"alt":0,"address":"","icon":"","group":"","inlineLabel":"","visitedicon":""}]}

74

Gaseous isotope separation using solar wind phenomena  

Science Journals Connector (OSTI)

...the use of light carrier gas, a necessity that greatly...the separative process. Gases with low molecular weight...manner similar to that of a turbine, can be placed just outside...the calculation of light gases, we have not included...the author was measuring solar wind parameters under...

Chia-Gee Wang

1980-01-01T23:59:59.000Z

75

Solar and Wind Equipment Certification | Department of Energy  

Broader source: Energy.gov (indexed) [DOE]

Solar and Wind Equipment Certification Solar and Wind Equipment Certification Solar and Wind Equipment Certification < Back Eligibility Commercial Construction Industrial Installer/Contractor Residential Savings Category Home Weatherization Commercial Weatherization Solar Lighting Windows, Doors, & Skylights Heating & Cooling Commercial Heating & Cooling Heating Buying & Making Electricity Water Heating Wind Program Info State Arizona Program Type Equipment Certification Provider Arizona Solar Energy Industries Association Collectors, heat exchangers and storage units of solar energy systems -- and the installation of these systems -- sold or installed in Arizona must have a warranty of at least two years. The remaining components of the system and their installation must have a warranty of at least one year.

76

Solar and Wind Permitting Laws | Department of Energy  

Broader source: Energy.gov (indexed) [DOE]

Permitting Laws Permitting Laws Solar and Wind Permitting Laws < Back Eligibility Commercial Industrial Nonprofit Residential Schools Savings Category Solar Buying & Making Electricity Wind Program Info State New Jersey Program Type Solar/Wind Permitting Standards Provider New Jersey Department of Community Affairs New Jersey has enacted three separate laws addressing local permitting practices for solar and wind energy facilities. The first deals with solar and wind facilities located in industrial-zoned districts; the second with wind energy devices sited on piers; and the third addresses permitting standards small wind energy devices in general. All three are described below. '''Solar and Wind as Permitted Uses in Industrial Zones''' In March 2009 the state enacted legislation (A.B. 2550) defining facilities

77

Hybrid Wind and Solar Electric Systems | Department of Energy  

Broader source: Energy.gov (indexed) [DOE]

Hybrid Wind and Solar Electric Systems Hybrid Wind and Solar Electric Systems Hybrid Wind and Solar Electric Systems July 2, 2012 - 8:21pm Addthis Because the peak operating times for wind and solar systems occur at different times of the day and year, hybrid systems are more likely to produce power when you need it. Because the peak operating times for wind and solar systems occur at different times of the day and year, hybrid systems are more likely to produce power when you need it. How does it work? A small "hybrid" electric system that combines wind and solar technologies can offer several advantages over either single system. According to many renewable energy experts, a small "hybrid" electric system that combines home wind electric and home solar electric (photovoltaic or PV) technologies offers several advantages over either

78

Guidelines for Solar and Wind Local Ordinances (Virginia) | Department of  

Broader source: Energy.gov (indexed) [DOE]

Guidelines for Solar and Wind Local Ordinances (Virginia) Guidelines for Solar and Wind Local Ordinances (Virginia) Guidelines for Solar and Wind Local Ordinances (Virginia) < Back Eligibility Agricultural Commercial Fed. Government General Public/Consumer Industrial Installer/Contractor Investor-Owned Utility Local Government Low-Income Residential Multi-Family Residential Municipal Utility Nonprofit Residential Rural Electric Cooperative Schools State Government Tribal Government Utility Savings Category Solar Buying & Making Electricity Wind Program Info State Virginia Program Type Solar/Wind Permitting Standards In March 2011, the Virginia legislature enacted broad guidelines for local ordinances for solar and wind. The law states that any local ordinance related to the siting of solar or wind energy facilities must:

79

Solar, Wind, Hydropower: Home Renewable Energy Installations | Department  

Broader source: Energy.gov (indexed) [DOE]

Solar, Wind, Hydropower: Home Renewable Energy Installations Solar, Wind, Hydropower: Home Renewable Energy Installations Solar, Wind, Hydropower: Home Renewable Energy Installations April 17, 2013 - 1:44pm Addthis This Lakewood, Colorado home was built in 1956. Brent and Mo Nelson upgraded the home with multiple solar technologies including; daylighting, passive solar and active solar. They also have an 80 gallon solar hot water heater. | Photo by Dennis Schroeder, National Renewable Energy Laboratory. This Lakewood, Colorado home was built in 1956. Brent and Mo Nelson upgraded the home with multiple solar technologies including; daylighting, passive solar and active solar. They also have an 80 gallon solar hot water heater. | Photo by Dennis Schroeder, National Renewable Energy Laboratory. Homeowner Andrea Mitchel, with installer Joe Guasti, proudly shows off small wind turbine installed in Oak Hills, CA. | Photo by Karin Sinclair, National Renewable Energy Laboratory.

80

RFP Instructions to Offerors  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

ITO (Rev. 10.1, 2/27/13) Instructions to Offerors ITO (Rev. 10.1, 2/27/13) Instructions to Offerors Dated 5-24-13 RFP No. 241314 Page 1 of 17 Los Alamos National Security, LLC (LANS) Los Alamos National Laboratory (LANL) REQUEST FOR PROPOSAL INSTRUCTIONS TO OFFERORS TABLE OF CONTENTS No. Title Page 1. GENERAL (Mar 2012)...................................................................................................................... 2 2. AMENDMENT OF SOLICITATION (Mar 2012) ............................................................................... 2 3. PREPARATION AND SUBMISSION OF PROPOSALS (Feb 2013 - Deviation) ............................. 2 4. BASIS OF AWARD - BEST VALUE (Mar 2012) ............................................................................. 7 5. OTHER AWARD CONSIDERATIONS (Mar 2012) ........................................................................ 10

Note: This page contains sample records for the topic "rfp solar wind" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


81

The Solar Wind in the Outer Heliosphere at Solar John D. Richardson and Chi Wang  

E-Print Network [OSTI]

The Solar Wind in the Outer Heliosphere at Solar Maximum John D. Richardson and Chi Wang Center solar wind observations in the outer heliosphere, concentrating on the recent data near solar maximum. The speed and temperature tend to be lower at solar maximum, due to the lack of coronal holes. The near

Richardson, John

82

Solar and Wind Energy Resource Assessment (SWERA)  

Open Energy Info (EERE)

Wiki Page Wiki Page Solar and Wind Energy Resource Assessment A United Nations Environment Programme facilitated effort. Getting Started Data Sets Analysis Tools About SWERA Loading.. Country Name Analyze Layer Data in OpenCarto View Country Profile in OpenEI Latitude Longitude Homer XML Get HOMER Data What am I seeing? This visualization shows international solar DNI, wind and climate resources. Click on one of the layer buttons below to view the resource layer. For more detailed information on each country, select the country by clicking it on the map below and then select 'View in OpenCarto' or 'View Country Page in OpenEI' to explore more data for that country. For HOMER, select a point to populate the latitude/longitude or provide your own, then press the button to send this information to HOMER.

83

RFP for Solar Education Kiosks  

Broader source: Energy.gov [DOE]

Request for Proposal for Interpretive Signage/Informational displays for three locations in Sacramento.

84

Solar, Wind, and Energy Efficiency Easements and Rights Laws | Department  

Broader source: Energy.gov (indexed) [DOE]

Solar, Wind, and Energy Efficiency Easements and Rights Laws Solar, Wind, and Energy Efficiency Easements and Rights Laws Solar, Wind, and Energy Efficiency Easements and Rights Laws < Back Eligibility Residential Savings Category Appliances & Electronics Commercial Lighting Lighting Heating & Cooling Commercial Heating & Cooling Solar Heating Buying & Making Electricity Water Heating Wind Program Info State Colorado Program Type Solar/Wind Access Policy Provider Colorado Energy Office Colorado's solar access laws, which date back to 1979, prohibit any residential covenants that restrict solar access. [http://www.leg.state.co.us/CLICS/CLICS2008A/csl.nsf/fsbillcont3/3F45E0C8... HB 1270] of 2008 extended the law to protect installations of wind turbines that meet the state's interconnection standards, and certain

85

Western Wind and Solar Integration Study (Fact Sheet)  

SciTech Connect (OSTI)

Initiated in 2007 to examine the operational impact of up to 35% penetration of wind, photovoltaic (PV), and concentrating solar power (CSP) energy on the electric power system, the Western Wind and Solar Integration Study (WWSIS) is one of the largest regional wind and solar integration studies to date. The goal is to understand the effects of variability and uncertainty of wind, PV, and CSP on the grid. In the Western Wind and Solar Integration Study Phase 1, solar penetration was limited to 5%. Utility-scale PV was not included because of limited capability to model sub-hourly, utility-scale PV output . New techniques allow the Western Wind and Solar Integration Study Phase 2 to include high penetrations of solar - not only CSP and rooftop PV but also utility-scale PV plants.

Not Available

2012-09-01T23:59:59.000Z

86

The Solar Wind, CMEs and the Origins of Heliospheric Activity  

E-Print Network [OSTI]

release o Coronal holes o Source of high-speed solar wind #12;peter.gallagher@tcd.ie #12;#12;peter Parker => Parker Spiral: r - r0 = -(v/ )( - 0) o Winding angle: o Inclined at ~45º at 1 AU and ~90º by 10The Solar Wind, CMEs and the Origins of Heliospheric Activity Peter T. Gallagher School of Physics

87

Community Solar and Wind Grant Program | Department of Energy  

Broader source: Energy.gov (indexed) [DOE]

Community Solar and Wind Grant Program Community Solar and Wind Grant Program Community Solar and Wind Grant Program < Back Eligibility Commercial Institutional Local Government Multi-Family Residential Nonprofit Schools State Government Savings Category Solar Buying & Making Electricity Wind Maximum Rebate $250,000 Program Info Funding Source Renewable Energy Resources Trust Fund Start Date 09/2011 Expiration Date 04/08/2013 State Illinois Program Type State Grant Program Rebate Amount Business Solar Thermal: 30% of project costs Government and Nonprofit Solar Thermal: 40% of project costs Business PV: $1.50/watt or 25% of project costs Government and Nonprofit PV: $2.60/watt or 40% of project costs Business Wind: $1.70/watt or 30% of project costs Government and Nonprofit Wind: $2.60/watt or 40% of project costs

88

Pierre's Prototype for Wind and Solar - Capitol Lake Plaza | Department  

Broader source: Energy.gov (indexed) [DOE]

Pierre's Prototype for Wind and Solar - Capitol Lake Plaza Pierre's Prototype for Wind and Solar - Capitol Lake Plaza Pierre's Prototype for Wind and Solar - Capitol Lake Plaza June 3, 2010 - 3:22pm Addthis Lindsay Gsell What are the key facts? 80 photovoltaic (PV) solar energy system and two vertical wind turbines will produce up to 40 percent of the building's total energy usage Capitol Lake Plaza sits centrally on Pierre, S.D.'s government plaza. Originally built in 1974, the building has been undergoing major energy renovations since being purchased by the state two years ago. Two major components of the renovation are about to appear at the building's highest point: solar panels and wind turbines are being installed on the roof. The 80 photovoltaic (PV) solar energy system and two vertical wind turbines will produce up to 40 percent of the building's total energy usage, says

89

Assessment of Wind and Solar Energy Resources in Bangladesh  

Science Journals Connector (OSTI)

Wind and solar energy are the alternative energy sources that can be used to supplement the conventional energy sources particularly in Bangladesh. In this work, the aim was to assess the current wind and sola...

Sanjoy Kumar Nandi; Mohammad Nasirul Hoque…

2013-11-01T23:59:59.000Z

90

RFP Invitation Letter  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

20, 2013 20, 2013 Subject: Question and Answer Set 2 Trinity and NERSC-8 Computing Platforms Project LA-UR-13-24524 Greetings: Interested parties are advised of the following questions or concerns that have been submitted to the Trinity and NERSC-8 Project team and to the accompanying Project responses below: Question/Issue 1 Requirement 3.4.4 specifies that the Offeror provide the time to perform the metadata operations "enumerate and retrieve" on one million objects. However, the "Required Runs" section of the mdtest web page,http://www.nersc.gov/systems/trinity-nersc-8-rfp/draft-nersc-8-trinity-benchmarks/mdtest/ specifies that only the times to perform creation and removal of objects be provided. Should we abide by the web page?

91

Green Mountain Energy RFP  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

PROPOSALS PROPOSALS GREEN MOUNTAIN ENERGY COMPANY TIM SMITH VP OF ORIGINATION AND BUSINESS DEVELOPMENT 550 WESTLAKE PARK BOULEVARD ROOM 172 HOUSTON, TEXAS 77079 281-366-5124 DATE ISSUED: JANUARY 21, 2005 DUE DATE & TIME FOR RESPONSES: FRIDAY, MARCH 3, 2005 @ 11:00 A.M. CENTRAL TIME RFP NOTICE GREEN MOUNTAIN ENERGY COMPANY IS REQUESTING PROPOSALS FROM GENERATORS AND MARKETERS OF RENEWABLE ENERGY CREDITS, RENEWABLE ENERGY ATTRIBUTES OR 'GREEN TAGS' ("RECs") ASSOCIATED WITH THE GENERATION OF ELECTRICITY FROM RENEWABLE RESOURCES. ANY QUESTIONS REGARDING THIS REQUEST FOR PROPOSAL SHOULD BE DIRECTED TO TIM SMITH, GREEN MOUNTAIN ENERGY COMPANY, 281-366-5124 or tim.smith@greenmountain.com. Upon signing this page the organization certifies that they have read and agree to

92

RFP Invitation Letter  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Invitation Letter (Rev. 5, 11/22/10) Invitation Letter (Rev. 5, 11/22/10) Page 1 of 3 An Equal Opportunity Employer / Operated by Los Alamos National Security LLC for DOE/NNSA Acquisition Services Management (ASM) Division Subcontracts, ASM-SUB P.O. Box 1663, Mail Stop D447 Los Alamos, New Mexico 87545 505-665-3814 E-mail: dknox@lanl.gov Date: August 7, 2013 Subject: Trinity and NERSC-8 Computing Platforms / Request for Proposal (RFP) No. 241314 Greetings: Los Alamos National Security, LLC (LANS) invites you to submit a Fixed Price proposal for the Trinity and NERSC-8 Computing Platforms. The procurement of these two (2) platforms is in support of the following: a. The New Mexico Alliance for Computing at Extreme Scales (ACES), residing within: ï‚· Los Alamos National Laboratory (LANL) and

93

Solar and Wind Energy Equipment Exemption | Department of Energy  

Broader source: Energy.gov (indexed) [DOE]

Solar and Wind Energy Equipment Exemption Solar and Wind Energy Equipment Exemption Solar and Wind Energy Equipment Exemption < Back Eligibility Commercial Industrial Residential Savings Category Solar Buying & Making Electricity Heating & Cooling Swimming Pool Heaters Water Heating Commercial Heating & Cooling Heating Wind Maximum Rebate None Program Info State Wisconsin Program Type Property Tax Incentive Rebate Amount Varies Provider Wisconsin Department of Revenue In Wisconsin, any value added by a solar-energy system or a wind-energy system is exempt from general property taxes. A solar-energy system is defined as "equipment which directly converts and then transfers or stores solar energy into usable forms of thermal or electrical energy, but does not include equipment or components that would be present as part of a

94

Solar wind electron temperature and density measurements on the Solar Orbiter with thermal noise spectroscopy  

E-Print Network [OSTI]

Solar wind electron temperature and density measurements on the Solar Orbiter with thermal noise of the plasma thermal noise analysis for the Solar Orbiter, in order to get accurate measurements of the total of their small mass and therefore large thermal speed, the solar wind electrons are expected to play a major role

California at Berkeley, University of

95

A HYBRID RECONFIGURABLE SOLAR AND WIND ENERGY SYSTEM.  

E-Print Network [OSTI]

??We study the feasibility of a novel hybrid solar-wind hybrid system that shares most of its infrastructure and components. During periods of clear sunny days… (more)

Gadkari, Sagar A.

2008-01-01T23:59:59.000Z

96

Optimal investment in wind and solar power in California.  

E-Print Network [OSTI]

?? Wind and solar electricity are increasingly attractive as their costs decline and greater value is given to avoiding greenhouse gas emissions. However, these technologies… (more)

Fripp, Matthias

2010-01-01T23:59:59.000Z

97

Solar/Wind Access Policy | Open Energy Information  

Open Energy Info (EERE)

Solar/Wind Access Policy Solar/Wind Access Policy < Solar Jump to: navigation, search Solar and wind access laws are designed to establish a right to install and operate a solar or wind energy system at a home or other facility. Some solar access laws also ensure a system owner's access to sunlight. These laws may be implemented at both the state and local levels. In some states, access rights prohibit homeowners associations, neighborhood covenants and local ordinances from restricting a homeowner's right to use solar energy. Easements, the most common form of solar access law, allow for the rights to existing access to a renewable resource on the part of one property owner to be secured from an owner whose property could be developed in such a way as to restrict that resource. An easement is

98

Solar and Wind Easements and Rights Laws and Local Option Solar Rights Law  

Broader source: Energy.gov (indexed) [DOE]

You are here You are here Home » Solar and Wind Easements and Rights Laws and Local Option Solar Rights Law Solar and Wind Easements and Rights Laws and Local Option Solar Rights Law < Back Eligibility Agricultural Commercial Fed. Government Industrial Institutional Local Government Nonprofit Residential Schools State Government Savings Category Heating & Cooling Commercial Heating & Cooling Solar Heating Buying & Making Electricity Swimming Pool Heaters Water Heating Wind Program Info State Oregon Program Type Solar/Wind Access Policy Oregon has several laws that protect access to solar and wind resources and the use of solar energy systems. Oregon's solar access laws date back to 1979 and state that no person conveying or contracting to convey a property title can include provisions that prohibit the use of solar energy systems

99

Solar Wind: Manifestations of Solar Activity E N CYC LO PE D IA O F AS T R O N O MY AN D AS T R O PHYS I C S Solar Wind: Manifestations of Solar  

E-Print Network [OSTI]

Solar Wind: Manifestations of Solar Activity E N CYC LO PE D IA O F AS T R O N O MY AN D AS T R O PHYS I C S Solar Wind: Manifestations of Solar Activity The Sun's outer atmosphere, the corona, is continually heated and expands to create the solar wind. Solar activity waxes and wanes with the 11 yr cycle

Webb, David F.

100

Is There a Chromospheric Footprint of the Solar Wind?  

Science Journals Connector (OSTI)

We correlate the inferred structure of the solar chromospheric plasma topography with in situ solar wind velocity and composition data measured at 1 AU. Diagnostics of atmospheric "depth" in the chromosphere are made for several observing periods in active, coronal hole, and quiet-Sun regions. We demonstrate that the inferred chromospheric diagnostics correlate very strongly with solar wind velocity and inversely with the ratio of ionic oxygen (O+7/O+6) densities. These correlations suggest that the structure of the solar wind is rooted deeper in the outer solar atmosphere than has been previously considered.

S. W. McIntosh; R. J. Leamon

2005-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "rfp solar wind" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


101

ELECTRON TRANSPORT IN THE FAST SOLAR WIND  

SciTech Connect (OSTI)

The electron velocity distribution function is studied in the extended solar corona above coronal holes (i.e., the inner part of the fast solar wind) from the highly collisional corona close to the Sun to the weakly collisional regions farther out. The electron kinetic equation is solved with a finite-element method in velocity space using a linearized Fokker-Planck collision operator. The ion density and temperature profiles are assumed to be known and the electric field and electron temperature are determined self-consistently. The results show quantitatively how much lower the electron heat flux and the thermal force are than predicted by high-collisionality theory. The sensitivity of the particle and heat fluxes to the assumed ion temperature profile and the applied boundary condition at the boundary far from the Sun is also studied.

Smith, H. M.; Marsch, E. [Max-Planck-Institut fuer Sonnensystemforschung, Max-Planck-Strasse 2, 37191 Katlenburg-Lindau (Germany); Helander, P., E-mail: hakan.smith@ipp.mpg.de [Max-Planck-Institut fuer Plasmaphysik, Wendelsteinstrasse 1, 17491 Greifswald (Germany)

2012-07-01T23:59:59.000Z

102

Solar and Wind Permitting Standards | Open Energy Information  

Open Energy Info (EERE)

Permitting Standards Permitting Standards Jump to: navigation, search Permitting standards can facilitate the installation of wind and solar energy systems by specifying the conditions and fees involved in project development. Some local governments have adopted simplified or expedited permitting standards for wind and/or solar. “Top-of-the-stack” or fast-track permitting saves system owners and project developers time and money. Some states have established maximum fees that local governments may charge for a permit for a solar or wind energy system. In addition, some states have developed (or have supported the development of) model wind ordinances for use by local governments. [1] Contents 1 Solar/Wind Permitting Standards Incentives 2 References Solar/Wind Permitting Standards Incentives

103

Solar and Wind Energy Resource Assessment Programme's Renewable Energy  

Open Energy Info (EERE)

Solar and Wind Energy Resource Assessment Programme's Renewable Energy Solar and Wind Energy Resource Assessment Programme's Renewable Energy Resource Explorer Jump to: navigation, search Tool Summary LAUNCH TOOL Name: Solar and Wind Energy Resource Assessment Programme's Renewable Energy Resource Explorer Focus Area: Solar Topics: Opportunity Assessment & Screening Website: en.openei.org/apps/SWERA/ Equivalent URI: cleanenergysolutions.org/content/solar-and-wind-energy-resource-assess Language: English Policies: Deployment Programs DeploymentPrograms: Technical Assistance The Solar and Wind Energy Resource Assessment (SWERA) programme's Renewable Energy Resource Explorer (RREX) is a Web-based map viewer that displays data from SWERA, the United Nations Environment Programme (UNEP) renewable resource assessment program. The viewer allows users to select any location

104

Solar–wind–magnetosphere–ionosphere interactions in the Earth's plasma environment  

Science Journals Connector (OSTI)

...Culhane and J. C. R. Hunt Solar-wind-magnetosphere-ionosphere interactions...dominated by its interaction with the solar-wind plasma, mediated by magnetic reconnection...magnetosphere|ionosphere|solar-wind interactions| 10.1098/rsta.2002...

2003-01-01T23:59:59.000Z

105

Comment on "Air Emissions Due to Wind and Solar Power" and Supporting Information  

E-Print Network [OSTI]

Due to Wind and Solar Power” Andrew Mills, ? , † RyanDue to Wind and Solar Power” Andrew Mills, ? , † Ryanthat wind and solar decrease NO x emissions. Andrew Mills et

Mills, Andrew D.

2011-01-01T23:59:59.000Z

106

Energy Transfer via Solar Wind Driven Ultra Low Frequency Waves in the Earth's Magnetosphere  

E-Print Network [OSTI]

on how various energy sources from the solar wind ultimatelymodes. The solar wind is an important energy source for ULFmodes. The solar wind is an important energy source for ULF

Hartinger, Michael David

2012-01-01T23:59:59.000Z

107

Solar and Wind Energy Business Franchise Tax Exemption | Department of  

Broader source: Energy.gov (indexed) [DOE]

Solar and Wind Energy Business Franchise Tax Exemption Solar and Wind Energy Business Franchise Tax Exemption Solar and Wind Energy Business Franchise Tax Exemption < Back Eligibility Commercial Industrial Savings Category Solar Buying & Making Electricity Heating & Cooling Commercial Heating & Cooling Heating Water Heating Wind Maximum Rebate None Program Info Start Date 1982 State Texas Program Type Industry Recruitment/Support Rebate Amount All Provider Comptroller of Public Accounts Companies in Texas engaged solely in the business of manufacturing, selling, or installing solar energy devices are exempted from the franchise tax. The franchise tax is Texas's equivalent to a corporate tax. There is no ceiling on this exemption, so it is a substantial incentive for solar manufacturers. For the purposes of this exemption, a solar energy device means "a system

108

Mirror Mode Structures in the Solar Wind: STEREO Observations  

E-Print Network [OSTI]

Mirror Mode Structures in the Solar Wind: STEREO Observations O. Enríquez-Rivera1 , X. Blanco-Cano1 Autónoma de México, Coyoacán, D.F., 04510, MEXICO 2. Institute of Geophysics and Planetary Physics of California, Berkeley, CA 94720, USA Abstract. Mirror mode structures occur in the solar wind either

California at Berkeley, University of

109

Expansion of a plasma cloud into the solar wind  

E-Print Network [OSTI]

Three-dimensional (3D) hybrid particle-in-cell (PIC) simulations, with kinetic ions and fluid electrons, of a plasma cloud expansion in the solar wind are presented, revealing the dynamics of the expansion, with shock formation, magnetic field compression, and the solar wind ions deflection around the plasma bubble. The similarities of this system with a magnetosphere are also pointed out.

Gargaté, L; Bingham, R; Silva, L O

2008-01-01T23:59:59.000Z

110

Study on the Wind and Solar Hybrid Control System  

Science Journals Connector (OSTI)

In the Twelfth Five-Year Plan, a comprehensive layout has been made for the new energy industry as the representative of nuclear energy, wind, solar and so on in the future. The comprehensive utilization of renewable energy for sustainable development ... Keywords: Wind and Solar Hybrid, control system, Pulse width modulation, BOOST

Hua-wei Zhang; Nan Li

2012-12-01T23:59:59.000Z

111

Astronomy: The day the solar wind nearly died  

Science Journals Connector (OSTI)

... New open field lines (red lines) are produced at a reconnection site XS and solar wind energy is directly deposited in the inner magnetosphere and upper atmosphere, as well as being ... by reconnection at XLN, in this example in the Northern Hemisphere. In this instance, solar-wind energy is not added to the tail because no new open flux is produced. Closed ...

Mike Lockwood

2001-02-08T23:59:59.000Z

112

REFINED RFP LOOP VOLTAGE CALCULATION J.C. Sprott  

E-Print Network [OSTI]

is the stored magnetic energy, Up is the plasma energy, and 'E is the global energy confinement time, which-of-merit for RFP devices is the loop voltage. Low loop voltage implies high plasma temperature and long energy is smallest if the loop is as close to the outside of the shell and as far from the primary windings

Sprott, Julien Clinton

113

Local Option - Solar, Wind and Biomass Energy Systems Exemption |  

Broader source: Energy.gov (indexed) [DOE]

Local Option - Solar, Wind and Biomass Energy Systems Exemption Local Option - Solar, Wind and Biomass Energy Systems Exemption Local Option - Solar, Wind and Biomass Energy Systems Exemption < Back Eligibility Agricultural Commercial Industrial Residential Savings Category Bioenergy Home Weatherization Commercial Weatherization Solar Lighting Windows, Doors, & Skylights Heating & Cooling Commercial Heating & Cooling Heating Buying & Making Electricity Swimming Pool Heaters Water Heating Wind Program Info Start Date 01/01/1991 State New York Program Type Property Tax Incentive Rebate Amount 100% exemption for 15 years (unless local jurisdiction has opted out) Provider Office of Real Property Tax Services Section 487 of the New York State Real Property Tax Law provides a 15-year real property tax exemption for solar, wind energy, and farm-waste energy

114

Puerto Rico - Solar and Wind Contractor Certification | Department of  

Broader source: Energy.gov (indexed) [DOE]

Puerto Rico - Solar and Wind Contractor Certification Puerto Rico - Solar and Wind Contractor Certification Puerto Rico - Solar and Wind Contractor Certification < Back Eligibility Installer/Contractor Savings Category Solar Buying & Making Electricity Wind Program Info Program Type Solar/Wind Contractor Licensing Provider Energy Affairs Administration In October 2008, the Energy Affairs Administration (EAA) of Puerto Rico adopted regulations for the certification of photovoltaic (PV) systems and installers in response to the passing of Act No. 248, which required that PV systems be certified and installed by certified installers in order to be eligible for the newly established tax credits (that have since been repealed). With the passing of this regulation, only certified installers may install photovoltaic (PV) systems in Puerto Rico. In January 2010,

115

Solar/Wind Permitting Standards | Open Energy Information  

Open Energy Info (EERE)

Permitting Standards Permitting Standards < Solar Jump to: navigation, search Permitting standards can facilitate the installation of wind and solar energy systems by specifying the conditions and fees involved in project development. Some local governments have adopted simplified or expedited permitting standards for wind and/or solar. “Top-of-the-stack” or fast-track permitting saves system owners and project developers time and money. Some states have established maximum fees that local governments may charge for a permit for a solar or wind energy system. In addition, some states have developed (or have supported the development of) model wind ordinances for use by local governments. [1] Solar/Wind Permitting Standards Incentives CSV (rows 1 - 55) Incentive Incentive Type Place Applicable Sector Eligible Technologies Active

116

OBSERVATION OF FLUX-TUBE CROSSINGS IN THE SOLAR WIND  

SciTech Connect (OSTI)

Current sheets are ubiquitous in the solar wind. They are a major source of the solar wind MHD turbulence intermittency. They may result from nonlinear interactions of the solar wind MHD turbulence or are the boundaries of flux tubes that originate from the solar surface. Some current sheets appear in pairs and are the boundaries of transient structures such as magnetic holes and reconnection exhausts or the edges of pulsed Alfven waves. For an individual current sheet, discerning whether it is a flux-tube boundary or due to nonlinear interactions or the boundary of a transient structure is difficult. In this work, using data from the Wind spacecraft, we identify two three-current-sheet events. Detailed examination of these two events suggests that they are best explained by the flux-tube-crossing scenario. Our study provides convincing evidence supporting the scenario that the solar wind consists of flux tubes where distinct plasmas reside.

Arnold, L.; Li, G.; Li, X. [Department of Physics and CSPAR, University of Alabama in Huntsville, Huntsville, AL 35899 (United States)] [Department of Physics and CSPAR, University of Alabama in Huntsville, Huntsville, AL 35899 (United States); Yan, Y., E-mail: gang.li@uah.edu [Key Laboratory of Solar Activity, National Astronomical Observatories of Chinese Academy of Sciences, Beijing 100012 (China)

2013-03-20T23:59:59.000Z

117

The Western Wind and Solar Integration Study Phase 2  

SciTech Connect (OSTI)

The electric grid is a highly complex, interconnected machine, and changing one part of the grid can have consequences elsewhere. Adding wind and solar affects the operation of the other power plants and adding high penetrations can induce cycling of fossil-fueled generators. Cycling leads to wear-and-tear costs and changes in emissions. Phase 2 of the Western Wind and Solar Integration Study (WWSIS-2) evaluated these costs and emissions and simulated grid operations for a year to investigate the detailed impact of wind and solar on the fossil-fueled fleet. This built on Phase 1, one of the largest wind and solar integration studies ever conducted, which examined operational impacts of high wind and solar penetrations in the West.

Lew, D.; Brinkman, G.; Ibanez, E.; Hodge, B. M.; Hummon, M.; Florita, A.; Heaney, M.

2013-09-01T23:59:59.000Z

118

Drivers of the solar wind: then and now  

Science Journals Connector (OSTI)

...must launch sufficient power at long periods to drive the fast wind; an energy flux density...the corona with enough power to drive the fast solar wind. Similar results were...enough long-period wave power to drive the fast wind. But it should be pointed...

2006-01-01T23:59:59.000Z

119

Statistics of counter-streaming solar wind suprathermal electrons at solar minimum: STEREO observations  

E-Print Network [OSTI]

1 Statistics of counter-streaming solar wind suprathermal electrons at solar minimum: STEREO, University of New Brunswick, Fredericton, Canada 6 Space Sciences Laboratory, University of California University of New Hampshire, Durham, USA Abstract. Previous work has shown that solar wind suprathermal

Paris-Sud XI, Université de

120

Solar and Wind Equipment Sales Tax Exemption | Department of Energy  

Broader source: Energy.gov (indexed) [DOE]

Solar and Wind Equipment Sales Tax Exemption Solar and Wind Equipment Sales Tax Exemption Solar and Wind Equipment Sales Tax Exemption < Back Eligibility Commercial General Public/Consumer Residential Savings Category Home Weatherization Commercial Weatherization Solar Lighting Windows, Doors, & Skylights Heating & Cooling Commercial Heating & Cooling Heating Buying & Making Electricity Swimming Pool Heaters Water Heating Wind Maximum Rebate No maximum Program Info Start Date 1/1/1997 Expiration Date 12/31/2016 State Arizona Program Type Sales Tax Incentive Rebate Amount 100% of sales tax on eligible equipment Provider Arizona Department of Revenue Arizona provides a sales tax exemption* for the retail sale of solar energy devices and for the installation of solar energy devices by contractors.

Note: This page contains sample records for the topic "rfp solar wind" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


121

Solar and Wind Powering Wyoming Home | Department of Energy  

Broader source: Energy.gov (indexed) [DOE]

Solar and Wind Powering Wyoming Home Solar and Wind Powering Wyoming Home Solar and Wind Powering Wyoming Home March 17, 2010 - 4:41pm Addthis Solar panels at Terry Sandstrom's home in Wheatland, Wyo. | Photo courtesy of Terry Sandstrom Solar panels at Terry Sandstrom's home in Wheatland, Wyo. | Photo courtesy of Terry Sandstrom Stephen Graff Former Writer & editor for Energy Empowers, EERE Terry Sandstrom never thought he would run his house entirely on renewable energy, but when faced with a $100,000 price tag to get connected to the grid, he had to look at alternative options. The man who spent his entire life in houses pulling energy from the grid now has 12 solar panels on his front lawn and a wind turbine in the backyard."I had no involvement in the renewable energy process until I got up here," says Terry, who moved from

122

Solar and Wind Powering Wyoming Home | Department of Energy  

Broader source: Energy.gov (indexed) [DOE]

Solar and Wind Powering Wyoming Home Solar and Wind Powering Wyoming Home Solar and Wind Powering Wyoming Home March 17, 2010 - 4:41pm Addthis Solar panels at Terry Sandstrom's home in Wheatland, Wyo. | Photo courtesy of Terry Sandstrom Solar panels at Terry Sandstrom's home in Wheatland, Wyo. | Photo courtesy of Terry Sandstrom Stephen Graff Former Writer & editor for Energy Empowers, EERE Terry Sandstrom never thought he would run his house entirely on renewable energy, but when faced with a $100,000 price tag to get connected to the grid, he had to look at alternative options. The man who spent his entire life in houses pulling energy from the grid now has 12 solar panels on his front lawn and a wind turbine in the backyard."I had no involvement in the renewable energy process until I got up here," says Terry, who moved from

123

ASYMMETRIC ELECTRON DISTRIBUTIONS IN THE SOLAR WIND  

SciTech Connect (OSTI)

A plausible mechanism responsible for producing asymmetric electron velocity distribution functions in the solar wind is investigated by means of one-dimensional electrostatic particle-in-cell (PIC) simulation. A recent paper suggests that the variation in the ion-to-electron temperature ratio influences the nonlinear wave-particle dynamics such that it results in the formation of asymmetric distributions. The present PIC code simulation largely confirms this finding, but quantitative differences between the weak turbulence formalism and the present PIC simulation are also found, suggesting the limitation of the analytical method. The inter-relationship between the asymmetric electron distribution and the ion-to-electron temperature ratio may be a new useful concept for the observation.

Rha, Kicheol; Ryu, Chang-Mo [Department of Physics, Pohang University of Science and Technology, Pohang 790-784 (Korea, Republic of)] [Department of Physics, Pohang University of Science and Technology, Pohang 790-784 (Korea, Republic of); Yoon, Peter H. [Institute for Physical Science and Technology, University of Maryland, College Park, MD 20742 (United States)] [Institute for Physical Science and Technology, University of Maryland, College Park, MD 20742 (United States)

2013-09-20T23:59:59.000Z

124

Turbulent heating of the corona and solar wind: the heliospheric  

E-Print Network [OSTI]

resembles magnetic lines of force Eclipse observations show the `solar corona' Thomson-scattered white light ­ photospheric light scattered from dust, solar spectrum remains ­ `zodiacal light' E corona ­ emission linesTurbulent heating of the corona and solar wind: the heliospheric dark energy problem Stuart D. Bale

125

A simulation study of the solar wind including the solar rotation effect  

Science Journals Connector (OSTI)

An axisymmetric solar wind structure including the solar rotation effect is studied by the method of MHD computer simulation. For the case of the radial magnetic field configuration, the simulation result is fair...

H. Washimi; T. Sakurai

1993-01-01T23:59:59.000Z

126

Trinity NERSC-8 Draft RFP  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

NERSC-8 / Trinity Benchmarks Trinity / NERSC-8 Capability Improvement Important Trinity / NERSC-8 Documents Q & A Testbeds NERSC 800 666-3772 Passwords & Account Support Web: http://nim.nersc.gov Email: accounts@nersc.gov Phone: 510 486-8612 Consulting Web: http://help.nersc.gov Email: consult@nersc.gov Phone: 510 486-8611 Home » Systems » Trinity-NERSC8-RFP Trinity / NERSC-8 RFP TrinityN8Logo.gif NERSC and the Alliance for Computing at Extreme Scale (ACES), a collaboration between Los Alamos National Laboratory and Sandia National Laboratory are partnering to release a joint Request for Proposal (RFP) for two next generation systems, Trinity and NERSC-8, to be delivered in the 2015 time frame. Interested Offerors are advised to monitor this web site and the LANL

127

Solar and Wind Energy Resource Assessment (SWERA) | Open Energy Information  

Open Energy Info (EERE)

Energy Resource Assessment (SWERA) Energy Resource Assessment (SWERA) Jump to: navigation, search SWERA logo.png Solar and Wind Energy Resource Assessment (SWERA) Interactive Web PortalPowered by OpenEI Getting Started Data Sets Analysis Tools About SWERA Tool Summary LAUNCH TOOL Name: Solar and Wind Energy Resource Assessment Agency/Company /Organization: United Nations Environment Programme Partner: National Renewable Energy Laboratory, German Aerospace Center (DLR), Risoe National Laboratory for Sustainable Energy, Brazil's National Institute for Space Research (INPE), State University of New York (SUNY), Technical University of Denmark (DTU), United Nations Environment Programme (UNEP), National Aeronautics and Space Administration, Global Environment Facility (GEF) Sector: Energy Focus Area: Solar, Wind

128

Comparison of VLF Wave Activity in the Solar Wind During Solar Maximum and Minimum  

E-Print Network [OSTI]

second fast latitude scan (near the solar maximum) with the wave observations during the first fast Experiments (URAP) of Ulysses during its first orbit, which occurred when the solar activity was approachingComparison of VLF Wave Activity in the Solar Wind During Solar Maximum and Minimum: Ulysses

California at Berkeley, University of

129

Altered solar wind -magnetosphere interaction at low Mach numbers: coronal mass ejections  

E-Print Network [OSTI]

1 Altered solar wind - magnetosphere interaction at low Mach numbers: coronal mass ejections Benoit fundamental alterations of the solar wind ­ magnetosphere interaction that occur during low Mach number solar wind. We first show that low Mach number solar wind conditions are often characteristic of coronal mass

Boyer, Edmond

130

Regional variations in the health, environmental, and climate benefits of wind and solar generation  

Science Journals Connector (OSTI)

...When wind or solar energy displace...and solar energy provide health...that wind or solar displaceallgeneratorsinthesystem...data. The advantage of this approach...etc. The disadvantage is that...benefits of wind energy in Texas...wind and solar. This work...

Kyle Siler-Evans; Inês Lima Azevedo; M. Granger Morgan; Jay Apt

2013-01-01T23:59:59.000Z

131

Are energetic electrons in the solar wind the source of the outer radiation belt?  

E-Print Network [OSTI]

Are energetic electrons in the solar wind the source of the outer radiation belt? Xinlin Li,1 D. N in the solar wind are the source of the outer rela- tivistic electron radiation belt. Though there is some the correlation of en- ergetic electrons in the 20-200 keV range in the solar wind and of high speed solar wind

Li, Xinlin

132

Imaging the global solar wind flow in EUV Mike Gruntman,1  

E-Print Network [OSTI]

solar wind flow is based on unique emissions of the solar wind plasmas in extreme ultraviolet (EUV). [4Imaging the global solar wind flow in EUV Mike Gruntman,1 Vlad Izmodenov,2,3 and Vic Pizzo4] We advance the original concept of imaging the three-dimensional solar wind flow (Gruntman, 2001a

Gruntman, Mike

133

Overview of the United Nations Environment Programme's Solar and Wind  

Open Energy Info (EERE)

Overview of the United Nations Environment Programme's Solar and Wind Overview of the United Nations Environment Programme's Solar and Wind Energy Resource Assessment (SWERA) Project Dataset Summary Description (Abstract): Project overview describing rationale, products and partners of the UNEP/GEF Solar and Wind Energy Resource Assessment project. (Purpose): Project overview for presentation at the Asia regional meeting at the Second International Conference on Renewable Energy Technology for Rural Development (RETRUD-03) in Katmandu on 12-14 October 2003 Source NREL Date Released October 14th, 2003 (11 years ago) Date Updated October 20th, 2007 (7 years ago) Keywords GEF solar SWERA UNEP United Nations wind Data application/zip icon Download Presentation (zip, 5 MiB) Quality Metrics Level of Review Some Review Comment Temporal and Spatial Coverage

134

BLM - Solar and Wind Energy Applications - Pre-Application and...  

Open Energy Info (EERE)

OpenEI Reference LibraryAdd to library Legal Document- OtherOther: BLM - Solar and Wind Energy Applications - Pre-Application and ScreeningLegal Abstract This BLM instruction...

135

Western Wind and Solar Integration Study Phase 2 (Fact Sheet)  

SciTech Connect (OSTI)

This is one-page, two-sided fact sheet presents high-level summary results of the Western Wind and Solar Integration Study Phase 2, which examined operational impacts of high penetrations of variable renewable generation in the West.

Not Available

2013-09-01T23:59:59.000Z

136

Western Wind and Solar Integration Study: Phase 2 (Presentation)  

SciTech Connect (OSTI)

This presentation summarizes the scope and results of the Western Wind and Solar Integration Study Phase 2, which examined operational impacts of high penetrations of variable renewable generation in the West.

Lew, D.; Brinkman, G.; Ibanez, E.; Lefton, S.; Kumar, N.; Venkataraman, S.; Jordan, G.

2013-09-01T23:59:59.000Z

137

Wind and Solar Energy Curtailment: Experience and Practices in...  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Wind and Solar Energy Curtailment: Experience and Practices in the United States Lori Bird, Jaquelin Cochran, and Xi Wang Technical Report NRELTP-6A20-60983 March 2014 NREL is a...

138

Western Wind and Solar Integration Study: Executive Summary ...  

Energy Savers [EERE]

impact of up to 35% energy penetration of wind, photovoltaics (PVs), and concentrating solar power (CSP) on the power system operated by the WestConnect group of utilities in...

139

Excise Tax Deduction for Solar- or Wind-Powered Systems  

Broader source: Energy.gov [DOE]

In Massachusetts, businesses may deduct from net income, for state excise tax purposes, expenditures paid or incurred from the installation of any "solar or wind powered climatic control unit and...

140

Final Solar and Wind H2 Report EPAct 812.doc  

Broader source: Energy.gov [DOE]

Report to Congress (ESECS EE-3060) in response to section 812(e) of the Energy Policy Act of 2005 summarizing technology roadmaps for solar- and wind-based hydrogen production.

Note: This page contains sample records for the topic "rfp solar wind" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


141

The Western Wind and Solar Integration Study Phase 2  

Office of Energy Efficiency and Renewable Energy (EERE)

Greg Brinkman will present the results of the Western Wind and Solar Integration Study (WWSIS), Phase 2. This study, which follows the first phase of WWSIS, focuses on potential emissions and wear...

142

Understanding of solar wind structure might be wrong  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

of solar wind structure might be wrong The plasma particles flowing from the Sun and blasting past the Earth might be configured more as a network of tubes than a...

143

Ion Cyclotron Waves, Instabilities and Solar Wind Heating  

Science Journals Connector (OSTI)

The effect of alpha particles on the dispersion relation of ion cyclotron waves and its influence on the heating of the solar wind plasma are investigated. ... can dramatically change the dispersion relation of i...

Xing Li; Shadia R. Habbal

2000-01-01T23:59:59.000Z

144

Ion cyclotron waves, instabilities and solar wind heating  

Science Journals Connector (OSTI)

The effect of alpha particles on the dispersion relation of ion cyclotron waves and its influence on the heating of the solar wind plasma are investigated. ... can dramatically change the dispersion relation of i...

Xing Li; Shadia R. Habbal

1999-12-01T23:59:59.000Z

145

Wind and Solar Energy Curtailment Practices (Presentation), NREL...  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Wind and Solar Energy Curtailment Practices Lori Bird, Co-authors: Jaquelin Cochran, Xi Wang, NREL UVIG October 17, 2014 San Antonio, Texas NRELPR-6A20-63054 2 Goals of Project *...

146

Proper solar wind power estimation and planetary radiometric efficiencies  

Science Journals Connector (OSTI)

... for electromagnetic wave production, restricting their attention to the emissions known to be controlled by solar wind energy inputs to the magnetospheres of the Earth, Jupiter and Saturn. Our purpose here is ...

D. N. BAKER; L. F. BARGATZE

1985-04-25T23:59:59.000Z

147

New Report: Integrating More Wind and Solar Reduces Utilities...  

Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

Carbon Emissions and Fuel Costs October 1, 2013 - 3:51pm Addthis The National Renewable Energy Laboratory (NREL) released Phase 2 of the Western Wind and Solar Integration Study...

148

Potential for Development of Solar and Wind Resource in Bhutan  

SciTech Connect (OSTI)

With support from the U.S. Agency for International Development (USAID), the U.S. Department of Energy's National Renewable Energy Laboratory (NREL) produced maps and data of the wind and solar resources in Bhutan. The solar resource data show that Bhutan has an adequate resource for flat-plate collectors, with annual average values of global horizontal solar radiation ranging from 4.0 to 5.5 kWh/m2-day (4.0 to 5.5 peak sun hours per day). The information provided in this report may be of use to energy planners in Bhutan involved in developing energy policy or planning wind and solar projects, and to energy analysts around the world interested in gaining an understanding of Bhutan's wind and solar energy potential.

Gilman, P.; Cowlin, S.; Heimiller, D.

2009-09-01T23:59:59.000Z

149

New England Breeze Solar and Wind Installers | Open Energy Information  

Open Energy Info (EERE)

Breeze Solar and Wind Installers Breeze Solar and Wind Installers Jump to: navigation, search Logo: New England Breeze Solar and Wind Installers Name New England Breeze Solar and Wind Installers Place Hudson, Massachusetts Zip 01749 Sector Renewable energy, Services, Solar, Wind energy Product Solar Panel and Wind Turbine Installation Year founded 2006 Number of employees 1-10 Phone number 978-567-9463 Website http://www.NewEnglandBreeze.co Coordinates 42.3917598°, -71.5661769° Loading map... {"minzoom":false,"mappingservice":"googlemaps3","type":"ROADMAP","zoom":14,"types":["ROADMAP","SATELLITE","HYBRID","TERRAIN"],"geoservice":"google","maxzoom":false,"width":"600px","height":"350px","centre":false,"title":"","label":"","icon":"","visitedicon":"","lines":[],"polygons":[],"circles":[],"rectangles":[],"copycoords":false,"static":false,"wmsoverlay":"","layers":[],"controls":["pan","zoom","type","scale","streetview"],"zoomstyle":"DEFAULT","typestyle":"DEFAULT","autoinfowindows":false,"kml":[],"gkml":[],"fusiontables":[],"resizable":false,"tilt":0,"kmlrezoom":false,"poi":true,"imageoverlays":[],"markercluster":false,"searchmarkers":"","locations":[{"text":"","title":"","link":null,"lat":42.3917598,"lon":-71.5661769,"alt":0,"address":"","icon":"","group":"","inlineLabel":"","visitedicon":""}]}

150

Western Wind and Solar Integration Study Phase 2: Preprint  

SciTech Connect (OSTI)

The Western Wind and Solar Integration Study (WWSIS) investigates the impacts of high penetrations of wind and solar power into the Western Interconnection of the United States. WWSIS2 builds on the Phase 1 study but with far greater refinement in the level of data inputs and production simulation. It considers the differences between wind and solar power on systems operations. It considers mitigation options to accommodate wind and solar when full costs of wear-and-tear and full impacts of emissions rates are taken into account. It determines wear-and-tear costs and emissions impacts. New data sets were created for WWSIS2, and WWSIS1 data sets were refined to improve realism of plant output and forecasts. Four scenarios were defined for WWSIS2 that examine the differences between wind and solar and penetration level. Transmission was built out to bring resources to load. Statistical analysis was conducted to investigate wind and solar impacts at timescales ranging from seasonal down to 5 minutes.

Lew, D.; Brinkman, G.; Ibanez, E.; Hodge, B.-M.; King, J.

2012-09-01T23:59:59.000Z

151

Wind- Chimney (Integrating the Principles of a Wind-Catcher and a Solar-Chimney to Provide Natural Ventilation).  

E-Print Network [OSTI]

?? WIND-CHIMNEY Integrating the principles of a wind-catcher and a solar chimney to provide natural ventilation Fereshteh Tavakolinia Abstract This paper suggests using a wind-catcher… (more)

Tavakolinia, Fereshteh

2011-01-01T23:59:59.000Z

152

Nonlinear wave evolution in the expanding solar wind  

Science Journals Connector (OSTI)

We report here on a numerical model allowing direct numerical simulations of magnetohydrodynamic fluctuations advected by the expanding solar wind. We show that the expansion of the plasma delays and possibly freezes the turbulent evolution, but that it also triggers the nonlinear evolution of otherwise stable (Alfvén) waves, which can thus release their energy in the wind.

Roland Grappin; Marco Velli; André Mangeney

1993-04-05T23:59:59.000Z

153

THE SOLAR WIND INTERACTION WITH VENUS J. G. LUHMANN  

E-Print Network [OSTI]

.upling 4.6. Wake and magnetotail 4.6.1. Plasmaand magnetic field 4.6.2. Picked up planetary ions 5THE SOLAR WIND INTERACTION WITH VENUS J. G. LUHMANN Institute ofGeophysicsand Planetary wind interaction with Venusin light of developmentssince the last major reviewswere published in 1983

California at Berkeley, University of

154

How Do High Levels of Wind and Solar Impact the Grid? The Western Wind and Solar Integration Study  

SciTech Connect (OSTI)

This paper is a brief introduction to the scope of the Western Wind and Solar Integration Study (WWSIS), inputs and scenario development, and the key findings of the study.

Lew, D.; Piwko, D.; Miller, N.; Jordan, G.; Clark, K.; Freeman, L.

2010-12-01T23:59:59.000Z

155

Assessment of wind and solar energy resources in Batna, Algeria  

Science Journals Connector (OSTI)

Due to several climate changes caused by greenhouse gas and to the increasing need for clean energies, scientists drew attention to renewable energy sources, which are the most suitable solution in the future. Sparsely populated and flat open terrains observed in Batna region (North East of Algeria) and its semi-arid climate, make it a promising region for the development of solar and wind energies. In this article, we analyzed ten years of daily wind speed data in a remote area of Batna: Mustafa Ben Boulaid Airport. Wind power availability, as well as annual mean values of wind speed and power, were estimated. Frequency distribution of daily totals of wind speed data were counted and illustrated too. The results have been used to estimate net energy output of different wind turbines. This simulation shows a difference in wind generators production and allows us to choose the best wind turbine adapted to site conditions. Since solar and wind energy resources may be used to compensate each other, we evaluated also the solar potential of the same area.

Mounir Aksas; Amor Gama

2011-01-01T23:59:59.000Z

156

Relationship between Solar Wind and Coronal Heating: Scaling Laws from Solar X-Rays  

Science Journals Connector (OSTI)

Pevtsov et al. recently showed that the luminosity of solar and stellar X-rays from closed magnetic structures scales nearly linearly with magnetic flux over 12 decades. We show here that the total power available to accelerate the solar wind also scales linearly with magnetic flux, provided that its sources inject a roughly constant energy per particle prior to losses from heat conducted by electrons into radiation. Using a recently developed model of the solar wind energy source and particle source, we calculate the available solar wind power and convert it into an equivalent X-ray luminosity to explore whether the same process that drives solar wind may also power coronal heating. The quantitative results agree remarkably well with the Pevtsov et al. X-ray observations and with GOES X-ray observations over almost two solar cycles from 1985 to 2004. The model for the solar wind energy and particle source relies on the continual reconfiguration of the supergranular network through the emergence of small bipolar or more complex closed magnetic fields. This naturally leads to an energy flux proportional to field strength on large-scale field structures with field strengths larger than the emerging flux. We conclude that the sources of energy for the solar wind and coronal heating are linked, likely through the emergence of new magnetic flux that continually reconfigures large-scale solar magnetic fields and powers and heats the corona.

N. A. Schwadron; D. J. McComas; C. DeForest

2006-01-01T23:59:59.000Z

157

Evidence for Inhomogeneous Heating in the Solar Wind  

Science Journals Connector (OSTI)

Solar wind observations and magnetohydrodynamic (MHD) simulations are used to probe the nature of turbulence heating. In particular, the electron heat flux, electron temperature, and ion temperature in the solar wind are studied using ACE and Wind data. These heating diagnostics are also compared with MHD simulation estimates of the local dissipation density. Coherent structures, which are sources of inhomogeneity and intermittency in MHD turbulence, are found to be associated with enhancements in every heating-related diagnostic. This supports the hypothesis that significant inhomogeneous heating occurs in the solar wind, connected with current sheets that are dynamically generated by MHD turbulence. Indeed, a subset of these coherent current sheets might be candidates for magnetic reconnection. However, the specific kinetic mechanisms that heat and accelerate particles within these structures require further study.

K. T. Osman; W. H. Matthaeus; A. Greco; S. Servidio

2011-01-01T23:59:59.000Z

158

Differential Flow Between Solar Wind Protons and Alpha Particles: First WIND Observations  

E-Print Network [OSTI]

Differential Flow Between Solar Wind Protons and Alpha J Particles: First WIND Observations . T. Steinberg and A. J. Lazarus Center for Space Research, Massachusetts Institute of Technology, Cambridge, Massachusetts L K. W. Ogilvie, R. Lepping, and J. Byrnes ab for Extraterrestrial Physics NASA/Goddard Space

Richardson, John

159

Solar wind plasma correlations between IMP 8, INTERBALL-1 and WIND  

E-Print Network [OSTI]

1 21 Solar wind plasma correlations between IMP 8, INTERBALL-1 and WIND K. I. Paularena Center for Space Research, Massachusetts Institute of Technology, Cambridge G. N. Zastenker Space Research Institute, Russian Academy of Sciences, Moscow A. J. Lazarus Center for Space Research, Massachusetts

Richardson, John

160

Evidence that solar wind fluctuations substantially affect global convection and substorm occurrence  

E-Print Network [OSTI]

-scale transfer of solar wind energy to the magnetosphere-ionosphere system, to plasma sheet structure wind energy to the magnetosphere-ionosphere system, and we speculated that resonance between the solar that this implies that solar wind ULF power may be an important contributor to the strength of coupling of solar

Lyons, Larry

Note: This page contains sample records for the topic "rfp solar wind" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


161

Long-term-average, solar cycle, and seasonal response of magnetospheric energetic electrons to the solar wind speed  

E-Print Network [OSTI]

to the solar wind speed D. Vassiliadis,1 A. J. Klimas,2 S. G. Kanekal,3 D. N. Baker,3 and R. S. Weigel4. [1] Among the interplanetary activity parameters the solar wind speed is the one best correlated, and seasonal response of magnetospheric energetic electrons to the solar wind speed, J. Geophys. Res., 107(A11

Vassiliadis, Dimitrios

162

COLLISIONLESS DAMPING AT ELECTRON SCALES IN SOLAR WIND TURBULENCE  

SciTech Connect (OSTI)

The dissipation of turbulence in the weakly collisional solar wind plasma is governed by unknown kinetic mechanisms. Two candidates have been suggested to play an important role in the dissipation, collisionless damping via wave-particle interactions and dissipation in small-scale current sheets. High resolution spacecraft measurements of the turbulent magnetic energy spectrum provide important constraints on the dissipation mechanism. The limitations of popular fluid and hybrid numerical schemes for simulation of the dissipation of solar wind turbulence are discussed, and instead a three-dimensional kinetic approach is recommended. We present a three-dimensional nonlinear gyrokinetic simulation of solar wind turbulence at electron scales that quantitatively reproduces the exponential form of the turbulent magnetic energy spectrum measured in the solar wind. A weakened cascade model that accounts for nonlocal interactions and collisionless Landau damping also quantitatively agrees with the observed exponential form. These results establish that a turbulent cascade of kinetic Alfven waves that is terminated by collisionless Landau damping is sufficient to explain the observed magnetic energy spectrum in the dissipation range of solar wind turbulence.

TenBarge, J. M.; Howes, G. G. [Department of Physics and Astronomy, University of Iowa, Iowa City, IA 52242 (United States); Dorland, W., E-mail: jason-tenbarge@uiowa.edu [Department of Physics, University of Maryland, College Park, MA 20742-3511 (United States)

2013-09-10T23:59:59.000Z

163

The Sun and the solar wind variability of different time-scales and the climate dynamics  

Science Journals Connector (OSTI)

The role and place of the solar wind energy in the whole spectra of the solar emissions, which could influence Earth's climate dynamics are investigated. Reliable indicators of the direct coupling between the solar wind disturbances and the temperature short-term variations in the high-latitude stratosphere are presented. In the long-terms (several solar cycles), variations of the solar wind dynamic pressure are similar to the correspondent total solar irradiance (TSI) temporal changes.

L.N Makarova; A.V Shirochkov

2004-01-01T23:59:59.000Z

164

Solar and Wind Energy Credit (Personal) | Department of Energy  

Broader source: Energy.gov (indexed) [DOE]

Personal) Personal) Solar and Wind Energy Credit (Personal) < Back Eligibility Commercial Multi-Family Residential Residential Savings Category Solar Buying & Making Electricity Heating & Cooling Commercial Heating & Cooling Heating Water Heating Wind Maximum Rebate Varies by technology and property type (see summary for details) Program Info Start Date 7/1/2009 State Hawaii Program Type Personal Tax Credit Rebate Amount Solar Thermal and PV: 35%; Wind: 20% Provider Hawaii Department of Taxation Note: The Hawaii Department of Taxation issued temporary administrative rules in November 2012 for photovoltaic systems installed on or after January 1, 2013. A formal rulemaking is underway. See "[http://www6.hawaii.gov/tax/tir/tir12-01.pdf Tax Information Release

165

Understanding of solar wind structure might be wrong  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Solar wind structure misunderstood Solar wind structure misunderstood Understanding of solar wind structure might be wrong The plasma particles flowing from the Sun and blasting past the Earth might be configured more as a network of tubes than a river-like stream. September 7, 2010 Los Alamos National Laboratory sits on top of a once-remote mesa in northern New Mexico with the Jemez mountains as a backdrop to research and innovation covering multi-disciplines from bioscience, sustainable energy sources, to plasma physics and new materials. Los Alamos National Laboratory sits on top of a once-remote mesa in northern New Mexico with the Jemez mountains as a backdrop to research and innovation covering multi-disciplines from bioscience, sustainable energy sources, to plasma physics and new materials.

166

Solar and Wind Energy Resource Assessment (SWERA) | Open Energy Information  

Open Energy Info (EERE)

Page Page Edit with form History Facebook icon Twitter icon » Solar and Wind Energy Resource Assessment (SWERA) (Redirected from SWERA) Jump to: navigation, search SWERA logo.png Solar and Wind Energy Resource Assessment (SWERA) Interactive Web PortalPowered by OpenEI Getting Started Data Sets Analysis Tools About SWERA Tool Summary LAUNCH TOOL Name: Solar and Wind Energy Resource Assessment Agency/Company /Organization: United Nations Environment Programme Partner: National Renewable Energy Laboratory, German Aerospace Center (DLR), Risoe National Laboratory for Sustainable Energy, Brazil's National Institute for Space Research (INPE), State University of New York (SUNY), Technical University of Denmark (DTU), United Nations Environment Programme (UNEP), National Aeronautics and Space Administration, Global Environment Facility (GEF)

167

Solar and Wind Energy Credit (Corporate) | Department of Energy  

Broader source: Energy.gov (indexed) [DOE]

Corporate) Corporate) Solar and Wind Energy Credit (Corporate) < Back Eligibility Commercial Multi-Family Residential Residential Savings Category Solar Buying & Making Electricity Heating & Cooling Commercial Heating & Cooling Heating Water Heating Wind Maximum Rebate Varies by technology and property type (see summary for details) Program Info Start Date 7/1/2009 State Hawaii Program Type Corporate Tax Credit Rebate Amount Solar Thermal and PV: 35%; Wind: 20% Provider Hawaii Department of Taxation Note: The Hawaii Department of Taxation issued temporary administrative rules in November 2012 for photovoltaic systems installed on or after January 1, 2013. A formal rulemaking is underway. See "[http://www6.hawaii.gov/tax/tir/tir12-01.pdf Tax Information Release

168

Global Atlas for Solar and Wind Energy | Open Energy Information  

Open Energy Info (EERE)

form form View source History View New Pages Recent Changes All Special Pages Semantic Search/Querying Get Involved Help Apps Datasets Community Login | Sign Up Search Page Edit with form History Facebook icon Twitter icon » Global Atlas for Solar and Wind Energy Jump to: navigation, search Tool Summary Name: Global Atlas for Solar and Wind Energy Agency/Company /Organization: International Renewable Energy Agency (IRENA) Sector: Energy Focus Area: Renewable Energy References: IRENA - Global Atlas[1] Overview "The Global Atlas for Solar and Wind Energy project aims to create a collaborative internet-based Geographic Information System (GIS) of these renewable resources that can direct and enhance cooperation on global scenarios and strategies and support decision-making, especially in areas

169

Western Wind and Solar Integration Study Phase 2: Preprint  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Western Wind and Solar Western Wind and Solar Integration Study Phase 2 Preprint D. Lew, G. Brinkman, E. Ibanez, and B.-M. Hodge National Renewable Energy Laboratory J. King RePPAE To be presented at the 11th Annual International Workshop on Large-Scale Integration of Wind Power into Power Systems as Well as on Transmission Networks for Offshore Wind Power Plants Conference Lisbon, Portugal November 13-15, 2012 Conference Paper NREL/CP-5500-56217 September 2012 NOTICE The submitted manuscript has been offered by an employee of the Alliance for Sustainable Energy, LLC (Alliance), a contractor of the US Government under Contract No. DE-AC36-08GO28308. Accordingly, the US Government and Alliance retain a nonexclusive royalty-free license to publish or reproduce the published form of

170

Dropouts of the outer electron radiation belt in response to solar wind stream interfaces: global positioning system observations  

Science Journals Connector (OSTI)

...radiation belt in response to solar wind stream interfaces: global...Calgary, Calgary, Alberta, Canada We present a statistical study...examined statistically for 67 solar wind stream interfaces (SIs...global positioning system|solar wind| 1. Introduction (a...

2010-01-01T23:59:59.000Z

171

Agua Caliente Wind/Solar Project at Whitewater Ranch  

SciTech Connect (OSTI)

Agua Caliente Band of Cahuilla Indians (ACBCI) was awarded a grant by the Department of Energy (DOE) to study the feasibility of a wind and/or solar renewable energy project at the Whitewater Ranch (WWR) property of ACBCI. Red Mountain Energy Partners (RMEP) was engaged to conduct the study. The ACBCI tribal lands in the Coachella Valley have very rich renewable energy resources. The tribe has undertaken several studies to more fully understand the options available to them if they were to move forward with one or more renewable energy projects. With respect to the resources, the WWR property clearly has excellent wind and solar resources. The DOE National Renewable Energy Laboratory (NREL) has continued to upgrade and refine their library of resource maps. The newer, more precise maps quantify the resources as among the best in the world. The wind and solar technology available for deployment is also being improved. Both are reducing their costs to the point of being at or below the costs of fossil fuels. Technologies for energy storage and microgrids are also improving quickly and present additional ways to increase the wind and/or solar energy retained for later use with the network management flexibility to provide power to the appropriate locations when needed. As a result, renewable resources continue to gain more market share. The transitioning to renewables as the major resources for power will take some time as the conversion is complex and can have negative impacts if not managed well. While the economics for wind and solar systems continue to improve, the robustness of the WWR site was validated by the repeated queries of developers to place wind and/or solar there. The robust resources and improving technologies portends toward WWR land as a renewable energy site. The business case, however, is not so clear, especially when the potential investment portfolio for ACBCI has several very beneficial and profitable alternatives.

Hooks, Todd; Stewart, Royce

2014-12-16T23:59:59.000Z

172

E-Print Network 3.0 - ancient solar wind Sample Search Results  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

latitudinal variation at solar maximum. Other changes, such as the variation of the solar wind... dynamic pressure, occur at all ... Source: Richardson, John - Kavli...

173

Renewable RFP on behalf of the Navy  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

price. Please include all factors related to pricing. For an estimated average hourly load profile by month of the aggregated various loads related to this RFP, read the...

174

Electron energy transport in the solar wind: Ulysses observations  

SciTech Connect (OSTI)

Previous analysis suggests that the whistler heat flux instability is responsible for the regulation of the electron heat flux of the solar wind. For an interval of quiescent solar wind during the in-ecliptic phase of the Ulysses mission, the plasma wave data in the whistler frequency regime are compared to the predictions of the whistler heat flux instability model. The data is well constrained by the predicted upper bound on the electron heat flux and a clear correlation between wave activity and electron heat flux dissipation is observed.

Scime, Earl E.; Gary, S. Peter; Phillips, John L.; Balogh, Andre; Lengyel-Frey, Denise [West Virginia University, Morgantown, West Virginia (United States); Los Alamos National Laboratory, Los Alamos, New Mexico (United States); Blackett Laboratory, Imperial College, London (United Kingdom); University of Maryland, College Park, Maryland (United States)

1996-07-20T23:59:59.000Z

175

Comment on “Air Emissions Due to Wind and Solar Power”  

Science Journals Connector (OSTI)

Comment on “Air Emissions Due to Wind and Solar Power” ... Energy Analysis Department, Lawrence Berkeley National Laboratory, Berkeley, California 94720 ... This work was funded by the Office of Energy Efficiency and Renewable Energy (Wind & Hydropower Technologies Program and Solar Energy Technologies Program) and by the Office of Electricity Delivery and Energy Reliability (Permitting, Siting, and Analysis Division) of the U.S. Department of Energy under Contract DE-AC02-05CH11231 with Lawrence Berkeley National Laboratory and Contract DE-AC36-08-GO28308 with the National Renewable Energy Laboratory. ...

Andrew Mills; Ryan Wiser; Michael Milligan; Mark O’Malley

2009-07-07T23:59:59.000Z

176

WATER POWER SOLAR POWER WIND POWER  

Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

Generation YOUR HOUSE BIOMASS ENERGY GEOTHERMAL ENERGY Clean energy can come from the sun. 2 The energy in wind can make electricity. We can make energy with moving water....

177

THE SPECTROSCOPIC FOOTPRINT OF THE FAST SOLAR WIND  

SciTech Connect (OSTI)

We analyze a large, complex equatorial coronal hole (ECH) and its immediate surroundings with a focus on the roots of the fast solar wind. We start by demonstrating that our ECH is indeed a source of the fast solar wind at 1 AU by examining in situ plasma measurements in conjunction with recently developed measures of magnetic conditions of the photosphere, inner heliosphere, and the mapping of the solar wind source region. We focus the bulk of our analysis on interpreting the thermal and spatial dependence of the non-thermal line widths in the ECH as measured by SOHO/SUMER by placing the measurements in context with recent studies of ubiquitous Alfven waves in the solar atmosphere and line profile asymmetries (indicative of episodic heating and mass loading of the coronal plasma) that originate in the strong, unipolar magnetic flux concentrations that comprise the supergranular network. The results presented in this paper are consistent with a picture where a significant portion of the energy responsible for the transport of heated mass into the fast solar wind is provided by episodically occurring small-scale events (likely driven by magnetic reconnection) in the upper chromosphere and transition region of the strong magnetic flux regions that comprise the supergranular network.

McIntosh, Scott W. [High Altitude Observatory, National Center for Atmospheric Research, P.O. Box 3000, Boulder, CO 80307 (United States); Leamon, Robert J. [ADNET Systems Inc., NASA Goddard Space Flight Center, Code 671.1, Greenbelt, MD 20771 (United States); De Pontieu, Bart, E-mail: mscott@ucar.edu, E-mail: robert.j.leamon@nasa.gov, E-mail: bdp@lmsal.com [Lockheed Martin Solar and Astrophysics Lab, 3251 Hanover Street, Org. ADBS, Building 252, Palo Alto, CA 94304 (United States)

2011-01-20T23:59:59.000Z

178

ACCELERATION OF THE SOLAR WIND BY ALFVEN WAVE PACKETS  

SciTech Connect (OSTI)

A scale separation kinetic model of the solar wind acceleration is presented. The model assumes an isotropic Maxwellian distribution of protons and a constant influx of outward propagating Alfven waves with a single exponent Kolmogorov-type spectrum at the base of a coronal acceleration region ({approx}2 R {sub Sun }). Our results indicate that nonlinear cyclotron resonant interaction taking energy from Alfven waves and depositing it into mostly perpendicular heating of protons in initially weakly expanding plasma in a spherically non-uniform magnetic field is able to produce the typical fast solar wind velocities for the typical plasma and wave conditions after expansion to about 5-10 solar radii R {sub Sun }. The acceleration model takes into account the gravity force and the ambipolar electric field, as well as the mirror force, which plays the most important role in driving the solar wind acceleration. Contrary to the recent claims of Isenberg, the cold plasma dispersion only slightly slows down the acceleration and actually helps in obtaining the more realistic fast solar wind speeds.

Galinsky, V. L.; Shevchenko, V. I., E-mail: vit@ucsd.edu [ECE Department, UC San Diego, MC 407, La Jolla, CA 92093-0407 (United States)

2013-01-20T23:59:59.000Z

179

A new method to estimate annual solar wind parameters and contributions of different solar wind structures to geomagnetic activity  

E-Print Network [OSTI]

In this paper, we study two sets of local geomagnetic indices from 26 stations using the principal component (PC) and the independent component (IC) analysis methods. We demonstrate that the annually averaged indices can be accurately represented as linear combinations of two first components with weights systematically depending on latitude. We show that the annual contributions of coronal mass ejections (CMEs) and high speed streams (HSSs) to geomagnetic activity are highly correlated with the first and second IC. The first and second ICs are also found to be very highly correlated with the strength of the interplanetary magnetic field (IMF) and the solar wind speed, respectively, because solar wind speed is the most important parameter driving geomagnetic activity during HSSs while IMF strength dominates during CMEs. These results help in better understanding the long-term driving of geomagnetic activity and in gaining information about the long-term evolution of solar wind parameters and the different sol...

Holappa, Lauri; Asikainen, Timo

2015-01-01T23:59:59.000Z

180

The multifluid character of the solar wind termination shock explaining the downstream supersonic solar wind ion flow  

Science Journals Connector (OSTI)

The Voyager?2 observations at the recent crossing of the solar wind termination shock show that the downstream thermal protons still move with supersonic speed. Obviously it is due to their inefficient shock?heating and that the surpathermal ions absorb most of the upstream kinetic solar wind energy. In this paper we present a three?fluid approach of the solar wind plasma consisting of a thermal a suprathermal and a high?energetic fluid. Within a consistent set of conservation equations for this three?fluid plasma we derive solutions for the observed properties of the upstream precursor and downstream plasma assuming that the conservation of the magnetic moment of suprathermal ions in the jump conditions is fulfilled.

Sergei V. Chalov; Hans J. Fahr

2010-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "rfp solar wind" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


181

How do Wind and Solar Power Affect Grid Operations: The Western Wind and Solar Integration Study; Preprint  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

17 17 September 2009 How do Wind and Solar Power Affect Grid Operations: The Western Wind and Solar Integration Study Preprint D. Lew and M. Milligan National Renewable Energy Laboratory G. Jordan, L. Freeman, N. Miller, K. Clark, and R. Piwko GE To be presented at the 8th International Workshop on Large Scale Integration of Wind Power and on Transmission Networks for Offshore Wind Farms Bremen, Germany October 14-15, 2009 NOTICE The submitted manuscript has been offered by an employee of the Alliance for Sustainable Energy, LLC (ASE), a contractor of the US Government under Contract No. DE-AC36-08-GO28308. Accordingly, the US Government and ASE retain a nonexclusive royalty-free license to publish or reproduce the published form of this contribution, or allow others to do so, for US Government purposes.

182

Simulation of three-dimensional solar wind disturbances and resulting geomagnetic storms  

Science Journals Connector (OSTI)

A kinematic method of representing the three-dimensional solar wind flow is devised by taking into account qualitatively the stream-stream interaction which leads to the formation of a shock pair. Solar wind p...

K. Hakamada; S. -I. Akasofu

1982-01-01T23:59:59.000Z

183

Analysis and characterization of wind-solar-constant torque spring hybridized model  

Science Journals Connector (OSTI)

Solar and wind are the most promising renewable energy resources. ... generation. This paper presents a model of wind and solar thermal hybrid power plant with a spring storage system which is expected to play an...

Shantanu Acharya; Subhadeep Bhattacharjee

2014-09-01T23:59:59.000Z

184

Cool heliosheath plasma and deceleration of the upstream solar wind at the termination shock  

Science Journals Connector (OSTI)

... The solar wind blows outward from the Sun and forms a bubble of ... wind blows outward from the Sun and forms a bubble of solar material in the interstellar medium. The termination shock occurs where the ...

John D. Richardson; Justin C. Kasper; Chi Wang; John W. Belcher; Alan J. Lazarus

2008-07-03T23:59:59.000Z

185

Western Wind and Solar Integration Study: Executive Summary, (WWSIS) May 2010  

SciTech Connect (OSTI)

This report provides a summary of background, approach, and findings of the Western Wind and Solar Integration Study (WWSIS).

R. Piwko; K. Clark; L. Freeman; G. Jordan; N. Miller

2010-05-01T23:59:59.000Z

186

Corotating solar wind streams and recurrent geomagnetic activity: Bruce T. Tsurutani,1,2  

E-Print Network [OSTI]

´n waves is the solar wind energy transfer mechanism. The acceleration of relativistic electrons occurs

Bergen, Universitetet i

187

Cool heliosheath plasma and deceleration of the upstream solar wind at the termination shock  

E-Print Network [OSTI]

with respect to the ther- mal ions downstream of the termination shock. Most of the solar wind energy

Richardson, John

188

Enabling Technologies for High Penetration of Wind and Solar Energy  

SciTech Connect (OSTI)

High penetration of variable wind and solar electricity generation will require modifications to the electric power system. This work examines the impacts of variable generation, including uncertainty, ramp rate, ramp range, and potentially excess generation. Time-series simulations were performed in the Texas (ERCOT) grid where different mixes of wind, solar photovoltaic and concentrating solar power provide up to 80% of the electric demand. Different enabling technologies were examined, including conventional generator flexibility, demand response, load shifting, and energy storage. A variety of combinations of these technologies enabled low levels of surplus or curtailed wind and solar generation depending on the desired penetration of renewable sources. At lower levels of penetration (up to about 30% on an energy basis) increasing flexible generation, combined with demand response may be sufficient to accommodate variability and uncertainty. Introduction of load-shifting through real-time pricing or other market mechanisms further increases the penetration of variable generation. The limited time coincidence of wind and solar generation presents increasing challenges as these sources provide greater than 50% of total demand. System flexibility must be increased to the point of virtually eliminating must-run baseload generators during periods of high wind and solar generation. Energy storage also becomes increasingly important as lower cost flexibility options are exhausted. The study examines three classes of energy storage - electricity storage, including batteries and pumped hydro, hybrid storage (compressed-air energy storage), and thermal energy storage. Ignoring long-distance transmission options, a combination of load shifting and storage equal to about 12 hours of average demand may keep renewable energy curtailment below 10% in the simulated system.

Denholm, P.

2011-01-01T23:59:59.000Z

189

Decades-Long Changes of the Interstellar Wind Through Our Solar System  

Science Journals Connector (OSTI)

...interstellar wind direction...with radial velocities sufficiently...with the solar wind, the latter method maps the radial distribution...interstellar wind . Astrophys...abundances and mass densities of dust...E. , The velocity distribution...

P. C. Frisch; M. Bzowski; G. Livadiotis; D. J. McComas; E. Moebius; H.-R. Mueller; W. R. Pryor; N. A. Schwadron; J. M. Sokó?; J. V. Vallerga; J. M. Ajello

2013-09-06T23:59:59.000Z

190

Comparison of the solar wind energy input to the magnetosphere measured by Wind and Interball-1  

Science Journals Connector (OSTI)

Timely solar wind measurements are indispensable for space weather forecasts and magnetospheric studies, but solar wind variations detected by a distant spacecraft might be different from those actually hitting Earth's magnetosphere. To determine how important these differences can be for geophysical applications, we compared energy input to the magnetosphere which was simultaneously measured by the Wind and Interball-1 spacecraft at various distances from the Earth. The percentage of equal (with differences less than 15%) measurements was found to increase from 30% at energies associated with small substorms to 100% for storm-level energies. The degree of the spacecraft separation along the X GSE coordinate and in the YZ GSE plane appeared to be of minor importance within the limits of Wind and Interball-1 orbits.

A.A Petrukovich; S.I Klimov; A Lazarus; R.P Lepping

2001-01-01T23:59:59.000Z

191

Solar–wind–magnetosphere–ionosphere interactions in the Earth's plasma environment  

Science Journals Connector (OSTI)

...the great diagnostic power of combined in situ...ionosphere|solar-wind interactions| 10...the great diagnostic power of combined in situ...ionosphere; solar-wind interactions 1. Introduction...depend on the solar-wind speed via the power in ultra-low-frequency...

2003-01-01T23:59:59.000Z

192

A TRANSONIC COLLISIONLESS MODEL OF THE SOLAR WIND I. Zouganelis,1  

E-Print Network [OSTI]

: corona 1. INTRODUCTION Most cosmic bodies eject matter into space, but the solar wind is the first and: First, the particle VDFs might not be Maxwellians at the base of the solar wind. Second, the particleA TRANSONIC COLLISIONLESS MODEL OF THE SOLAR WIND I. Zouganelis,1 M. Maksimovic,1 N. Meyer-Vernet,1

Meyer-Vernet, Nicole

193

Discrepancies in the Prediction of Solar Wind using Potential Field Source Surface Model: An  

E-Print Network [OSTI]

expansion near the Sun and the solar wind speed observed at earth was first noted by Levine, AltschulerDiscrepancies in the Prediction of Solar Wind using Potential Field Source Surface Model between the magnetic flux tube expansion factor (FTE) at the source surface and the solar wind speed

Zhao, Xuepu

194

Solar Wind and Interplanetary Magnetic Field: A Tutorial C. T. Russell  

E-Print Network [OSTI]

Solar Wind and Interplanetary Magnetic Field: A Tutorial C. T. Russell Institute of Geophysics at the center of the sun to its radiation into space by the photosphere, but most importantly for the solar wind controls the properties of the solar wind. In this tutorial review we examine the properties of the fields

Russell, Christopher T.

195

Global and multi-scale features of solar wind-magnetosphere coupling: From modeling to forecasting  

E-Print Network [OSTI]

and substorms; 2784 Magnetospheric Physics: Solar wind/magnetosphere interactions; 3210 Mathematical Geophysics in the solar wind-magnetosphere interaction, de- veloping first principles models that encompass allGlobal and multi-scale features of solar wind-magnetosphere coupling: From modeling to forecasting

Sitnov, Mikhail I.

196

Effect of solar wind pressure pulses on the size and strength of the auroral oval  

E-Print Network [OSTI]

Effect of solar wind pressure pulses on the size and strength of the auroral oval A. Boudouridis, E. [1] It has recently been found that solar wind dynamic pressure changes can dramatically affect solar wind dynamic pressure increases on the location, size, and intensity of the auroral oval using

Lummerzheim, Dirk

197

Enhanced solar wind geoeffectiveness after a sudden increase in dynamic pressure during southward IMF orientation  

E-Print Network [OSTI]

Enhanced solar wind geoeffectiveness after a sudden increase in dynamic pressure during southward increase in solar wind pressure results in poleward expansion of the auroral oval and closing of the polar show that southward IMF conditions combined with high solar wind dynamic pressure immediately after

Lummerzheim, Dirk

198

Impact of the solar wind dynamic pressure on the Region 2 field-aligned currents  

E-Print Network [OSTI]

Impact of the solar wind dynamic pressure on the Region 2 field-aligned currents S. Nakano,1,2 G and the solar wind dynamic pressure is investigated using magnetic field data from Defense Meteorological in the magnetosphere varies with the solar wind dynamic pressure. Therefore, we can expect that the Region 2 currents

Higuchi, Tomoyuki

199

The genesis solar-wind sample return mission  

SciTech Connect (OSTI)

The compositions of the Earth's crust and mantle, and those of the Moon and Mars, are relatively well known both isotopically and elementally. The same is true of our knowledge of the asteroid belt composition, based on meteorite analyses. Remote measurements of Venus, the Jovian atmosphere, and the outer planet moons, have provided some estimates of their compositions. The Sun constitutes a large majority, > 99%, of all the matter in the solar system. The elemental composition of the photosphere, the visible 'surface' of the Sun, is constrained by absorption lines produced by particles above the surface. Abundances for many elements are reported to the {+-}10 or 20% accuracy level. However, the abundances of other important elements, such as neon, cannot be determined in this way due to a relative lack of atomic states at low excitation energies. Additionally and most importantly, the isotopic composition of the Sun cannot be determined astronomically except for a few species which form molecules above sunspots, and estimates derived from these sources lack the accuracy desired for comparison with meteoritic and planetary surface samples measured on the Earth. The solar wind spreads a sample of solar particles throughout the heliosphere, though the sample is very rarified: collecting a nanogram of oxygen, the third most abundant element, in a square centimeter cross section at the Earth's distance from the Sun takes five years. Nevertheless, foil collectors exposed to the solar wind for periods of hours on the surface of the Moon during the Apollo missions were used to determine the helium and neon solar-wind compositions sufficiently to show that the Earth's atmospheric neon was significantly evolved relative to the Sun. Spacecraft instruments developed subsequently have provided many insights into the composition of the solar wind, mostly in terms of elemental composition. These instruments have the advantage of observing a number of parameters simultaneously, including charge state distributions, velocities, and densities, all of which have been instrumental in characterizing the nature of the solar wind. However, these instruments have lacked the ability to make large dynamic range measurements of adjacent isotopes (i.e., {sup 17}O/{sup 16}O {approx} 2500) or provide the permil (tenths of percent) accuracy desirable for comparison with geochemical isotopic measurements. An accurate knowledge of the solar and solar-wind compositions helps to answer important questions across a number of disciplines. It aids in understanding the acceleration mechanisms of the solar wind, gives an improved picture of the charged particle environment near the photosphere, it constrains processes within the Sun over its history, and it provides a database by which to compare differences among planetary systems with the solar system's starting composition, providing key information on planetary evolution. For example, precise knowledge of solar isotopic and elemental compositions of volatile species in the Sun provides a baseline for models of atmospheric evolution over time for Earth, Venus, and Mars. Additionally, volatile and chemically active elements such as C, H, O, N, and S can tell us about processes active during the evolution of the solar nebula. A classic example of this is the oxygen isotope system. In the 1970s it was determined that the oxygen isotopic ratio in refractory inclusions in primitive meteorites was enriched {approx}4% in {sup 16}O relative to the average terrestrial, lunar, and thermally processed meteorite materials. In addition, all processed solar-system materials appeared to each have a unique oxygen isotopic composition (except the Moon and Earth, which are thought to be formed from the same materials), though differences are in the fraction of a percent range, much smaller than the refractory material {sup 16}O enrichment. Several theories were developed over the years to account for the oxygen isotope heterogeneity, each theory predicting a different solar isotopic composition and each invoking a differ

Wiens, Roger C [Los Alamos National Laboratory

2009-01-01T23:59:59.000Z

200

Origin and Acceleration of the Slow Solar Wind  

Science Journals Connector (OSTI)

This Letter uses Doppler dimming measurements by SOHO UVCS to elucidate the origin and acceleration of the slow solar wind. By investigating plasma flow in the corona over an active region during 2000 May 14-16, we confirm what has been suggested by the presence of the imprint of active regions in the solar wind near Earth orbit, that active regions are a source of slow wind. The observed active region does not have an associated streamer in the outer corona. We explain how this implies that any related heliospheric current sheet must be transverse to the line of sight. It is this favorable geometry of a transverse heliospheric current sheet that allows the plasma flow over the active region to be isolated in path-integrated Doppler dimming measurements. The results also show that acceleration of the slow wind associated with active regions toward its terminal speed is faster than that along the heliospheric current sheet. These differences in acceleration explain why the signatures of the heliospheric current sheet are dissimilar in velocity, but not in density, between the corona and solar wind measured near Earth orbit.

Richard Woo; Shadia Rifai Habbal

2005-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "rfp solar wind" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


201

Apollo 11 Solar Wind Composition Experiment: First Results  

Science Journals Connector (OSTI)

...handling and treatment, several pieces of the foil which had been irradiated earlier with a known neon ion flux of solar wind energy were attached to the foil. One of these test pieces has been analyzed so far, and no losses within 10 percent have...

F. Bühler; P. Eberhardt; J. Geiss; J. Meister; P. Signer

1969-12-19T23:59:59.000Z

202

THREE-DIMENSIONAL EVOLUTION OF SOLAR WIND DURING SOLAR CYCLES 22-24  

SciTech Connect (OSTI)

This paper presents an analysis of three-dimensional evolution of solar wind density turbulence and speed at various levels of solar activity between solar cycles 22 and 24. The solar wind data used in this study have been obtained from the interplanetary scintillation (IPS) measurements made at the Ooty Radio Telescope, operating at 327 MHz. Results show that (1) on average, there was a downward trend in density turbulence from the maximum of cycle 22 to the deep minimum phase of cycle 23; (2) the scattering diameter of the corona around the Sun shrunk steadily toward the Sun, starting from 2003 to the smallest size at the deepest minimum, and it corresponded to a reduction of {approx}50% in the density turbulence between the maximum and minimum phases of cycle 23; (3) the latitudinal distribution of the solar wind speed was significantly different between the minima of cycles 22 and 23. At the minimum phase of solar cycle 22, when the underlying solar magnetic field was simple and nearly dipole in nature, the high-speed streams were observed from the poles to {approx}30 Degree-Sign latitudes in both hemispheres. In contrast, in the long-decay phase of cycle 23, the sources of the high-speed wind at both poles, in accordance with the weak polar fields, occupied narrow latitude belts from poles to {approx}60 Degree-Sign latitudes. Moreover, in agreement with the large amplitude of the heliospheric current sheet, the low-speed wind prevailed in the low- and mid-latitude regions of the heliosphere. (4) At the transition phase between cycles 23 and 24, the high levels of density and density turbulence were observed close to the heliospheric equator and the low-speed solar wind extended from the equatorial-to-mid-latitude regions. The above results in comparison with Ulysses and other in situ measurements suggest that the source of the solar wind has changed globally, with the important implication that the supply of mass and energy from the Sun to the interplanetary space has been significantly reduced in the prolonged period of low solar activity. The IPS results are consistent with the onset and growth of the current solar cycle 24, starting from the middle of 2009. However, the width of the high-speed wind at the northern high latitudes has almost disappeared and indicates that the ascending phase of the current cycle has almost reached the maximum phase in the northern hemisphere of the Sun. However, in the southern part of the hemisphere, the solar activity has yet to develop and/or increase.

Manoharan, P. K., E-mail: mano@ncra.tifr.res.in [Radio Astronomy Centre, National Centre for Radio Astrophysics, Tata Institute of Fundamental Research, Udhagamandalam (Ooty) 643001 (India)

2012-06-01T23:59:59.000Z

203

Power House Solar and Wind | Open Energy Information  

Open Energy Info (EERE)

Wind Wind Jump to: navigation, search Name Power House Solar and Wind Address 1504 Woodlawn Ave Place Canon City, Colorado Zip 81212 Sector Solar Product Design, consulting, product and system sales, and complete installation services Website http://www.powerhousesolar.net Coordinates 38.4526295°, -105.2273024° Loading map... {"minzoom":false,"mappingservice":"googlemaps3","type":"ROADMAP","zoom":14,"types":["ROADMAP","SATELLITE","HYBRID","TERRAIN"],"geoservice":"google","maxzoom":false,"width":"600px","height":"350px","centre":false,"title":"","label":"","icon":"","visitedicon":"","lines":[],"polygons":[],"circles":[],"rectangles":[],"copycoords":false,"static":false,"wmsoverlay":"","layers":[],"controls":["pan","zoom","type","scale","streetview"],"zoomstyle":"DEFAULT","typestyle":"DEFAULT","autoinfowindows":false,"kml":[],"gkml":[],"fusiontables":[],"resizable":false,"tilt":0,"kmlrezoom":false,"poi":true,"imageoverlays":[],"markercluster":false,"searchmarkers":"","locations":[{"text":"","title":"","link":null,"lat":38.4526295,"lon":-105.2273024,"alt":0,"address":"","icon":"","group":"","inlineLabel":"","visitedicon":""}]}

204

The interaction between the Moon and the solar wind  

E-Print Network [OSTI]

We study the interaction between the Moon and the solar wind using a three-dimensional hybrid plasma solver. The proton fluxes and electromagnetical fields are presented for typical solar wind conditions with different magnetic field directions. Several features are consistent with a fluid interaction, e.g., the presence of a rarefaction cone, and an increased magnetic field in the wake. There are however several kinetic features of the interaction. We find kinks in the magnetic field at the wake boundary. There are also density and magnetic field variations in the far wake, maybe from an ion beam instability related to the wake refill. The results are compared to observations by the WIND spacecraft during a wake crossing. The model magnetic field and ion velocities are in agreement with the measurements. The density and the electron temperature in the central wake are not as well captured by the model, probably from the lack of electron physics in the hybrid model.

Holmström, M; Futaana, Y; Nilsson, H

2011-01-01T23:59:59.000Z

205

Ener-Gee Whiz Answers Your Questions: Wind vs. Solar | Department of Energy  

Broader source: Energy.gov (indexed) [DOE]

Ener-Gee Whiz Answers Your Questions: Wind vs. Solar Ener-Gee Whiz Answers Your Questions: Wind vs. Solar Ener-Gee Whiz Answers Your Questions: Wind vs. Solar August 11, 2009 - 12:48pm Addthis Amy Foster Parish Costa writes: Do you think using wind is better than using solar to generate electricity? Ener-Gee Whiz: If you're considering installing a renewable energy system and are having a hard time deciding between the wind turbines and solar panels, you might find that the right renewable energy system for you depends on a number of factors. The first and most obvious consideration is the wind or solar resource in your area. While there is a tendency to think that the wind always blows and the sun always shines no matter where you're located, wind and solar resources are actually quite variable across the United States.

206

U.S. Virgin Islands - Solar and Wind Easements and Rights Laws | Department  

Broader source: Energy.gov (indexed) [DOE]

U.S. Virgin Islands - Solar and Wind Easements and Rights Laws U.S. Virgin Islands - Solar and Wind Easements and Rights Laws U.S. Virgin Islands - Solar and Wind Easements and Rights Laws < Back Eligibility Commercial Fed. Government Industrial Institutional Local Government Nonprofit Residential Schools State Government Savings Category Solar Buying & Making Electricity Heating & Cooling Commercial Heating & Cooling Heating Water Heating Wind Program Info Program Type Solar/Wind Access Policy In the U.S. Virgin Islands, the owner of a solar or wind-energy system is permitted to negotiate for assurance of continued access to the system's energy source. "Solar or wind-energy system" is defined as "any system that converts, stores, collects, protects or distributes the kinetic energy of the sun or wind into mechanical, chemical or electrical energy to provide

207

City of Madison - Solar and Wind Access and Planning Laws | Department of  

Broader source: Energy.gov (indexed) [DOE]

City of Madison - Solar and Wind Access and Planning Laws City of Madison - Solar and Wind Access and Planning Laws City of Madison - Solar and Wind Access and Planning Laws < Back Eligibility Construction Savings Category Heating & Cooling Commercial Heating & Cooling Solar Heating Buying & Making Electricity Water Heating Wind Program Info State Wisconsin Program Type Solar/Wind Access Policy Provider City of Madison Madison, Wisconsin, has established several local laws to facilitate the planning and permitting of solar and wind systems. The planning guidelines are specific to solar, while the permitting laws and procedures include wind as well. '''Planning''' To facilitate solar access, Madison's land subdivision regulations require streets to be "oriented in an east-west direction to the maximum

208

rfp | OpenEI Community  

Open Energy Info (EERE)

14 14 Varnish cache server Home Groups Community Central Green Button Applications Developer Utility Rate FRED: FRee Energy Database More Public Groups Private Groups Features Groups Blog posts Content Stream Documents Discussions Polls Q & A Events Notices My stuff Energy blogs 429 Throttled (bot load) Error 429 Throttled (bot load) Throttled (bot load) Guru Meditation: XID: 2142235114 Varnish cache server rfp Home Renewable Energy RFPs Description: Find renewable energy financial opportunities. We post solicitations for renewable energy generation, renewable energy certificates, and green power as a courtesy to our web site visitors. Unless otherwise noted, these requests for proposals (RFPs) and solicitations are neither supported nor endorsed by the U.S. Department of Energy and/or the National Renewable Energy Laboratory.

209

The Spectroscopic Footprint of the Fast Solar Wind  

E-Print Network [OSTI]

We analyze a large, complex equatorial coronal hole (ECH) and its immediate surroundings with a focus on the roots of the fast solar wind. We start by demonstrating that our ECH is indeed a source of the fast solar wind at 1AU by examining in situ plasma measurements in conjunction with recently developed measures of magnetic conditions of the photosphere, inner heliosphere and the mapping of the solar wind source region. We focus the bulk of our analysis on interpreting the thermal and spatial dependence of the non-thermal line widths in the ECH as measured by SOHO/SUMER by placing the measurements in context with recent studies of ubiquitous Alfven waves in the solar atmosphere and line profile asymmetries (indicative of episodic heating and mass loading of the coronal plasma) that originate in the strong, unipolar magnetic flux concentrations that comprise the supergranular network. The results presented in this paper are consistent with a picture where a significant portion of the energy responsible for t...

McIntosh, Scott W; De Pontieu, Bart

2010-01-01T23:59:59.000Z

210

Third Sun Solar and Wind Power | Open Energy Information  

Open Energy Info (EERE)

Sun Solar and Wind Power Sun Solar and Wind Power Jump to: navigation, search Name Third Sun Solar and Wind Power Address 340 West State St. Unit 25 Place Athens, Ohio Zip 45701 Sector Solar Product Consulting; Energy provider: power production; Engineering/architectural/design;Installation;Investment/finances;Maintenance and repair; Retail product sales and distribution Phone number 740-597-3111 Website http://www.third-sun.com Coordinates 39.3344136°, -82.1150887° Loading map... {"minzoom":false,"mappingservice":"googlemaps3","type":"ROADMAP","zoom":14,"types":["ROADMAP","SATELLITE","HYBRID","TERRAIN"],"geoservice":"google","maxzoom":false,"width":"600px","height":"350px","centre":false,"title":"","label":"","icon":"","visitedicon":"","lines":[],"polygons":[],"circles":[],"rectangles":[],"copycoords":false,"static":false,"wmsoverlay":"","layers":[],"controls":["pan","zoom","type","scale","streetview"],"zoomstyle":"DEFAULT","typestyle":"DEFAULT","autoinfowindows":false,"kml":[],"gkml":[],"fusiontables":[],"resizable":false,"tilt":0,"kmlrezoom":false,"poi":true,"imageoverlays":[],"markercluster":false,"searchmarkers":"","locations":[{"text":"","title":"","link":null,"lat":39.3344136,"lon":-82.1150887,"alt":0,"address":"","icon":"","group":"","inlineLabel":"","visitedicon":""}]}

211

Uganda-Demonstrating Wind and Solar Energy on Lake Victoria | Open Energy  

Open Energy Info (EERE)

Uganda-Demonstrating Wind and Solar Energy on Lake Victoria Uganda-Demonstrating Wind and Solar Energy on Lake Victoria Jump to: navigation, search Name Uganda-Demonstrating Wind and Solar Energy on Lake Victoria Agency/Company /Organization United Nations Development Programme Sector Energy Focus Area Renewable Energy, Solar, Wind Topics Policies/deployment programs, Background analysis, Technology characterizations Resource Type Guide/manual, Lessons learned/best practices Website http://sgp.undp.org/download/S Country Uganda UN Region Eastern Africa References Uganda-Demonstrating Wind and Solar Energy on Lake Victoria[1] Uganda-Demonstrating Wind and Solar Energy on Lake Victoria Screenshot Background "This project demonstrates the use of wind and solar energy sources to recharge batteries and meet lighting and other power needs within homes.A

212

A Model for the Sources of the Slow Solar Wind  

Science Journals Connector (OSTI)

Models for the origin of the slow solar wind must account for two seemingly contradictory observations: the slow wind has the composition of the closed-field corona, implying that it originates from the continuous opening and closing of flux at the boundary between open and closed field. On the other hand, the slow wind also has large angular width, up to ~60°, suggesting that its source extends far from the open-closed boundary. We propose a model that can explain both observations. The key idea is that the source of the slow wind at the Sun is a network of narrow (possibly singular) open-field corridors that map to a web of separatrices and quasi-separatrix layers in the heliosphere. We compute analytically the topology of an open-field corridor and show that it produces a quasi-separatrix layer in the heliosphere that extends to angles far from the heliospheric current sheet. We then use an MHD code and MDI/SOHO observations of the photospheric magnetic field to calculate numerically, with high spatial resolution, the quasi-steady solar wind, and magnetic field for a time period preceding the 2008 August 1 total solar eclipse. Our numerical results imply that, at least for this time period, a web of separatrices (which we term an S-web) forms with sufficient density and extent in the heliosphere to account for the observed properties of the slow wind. We discuss the implications of our S-web model for the structure and dynamics of the corona and heliosphere and propose further tests of the model.

S. K. Antiochos; Z. Miki?; V. S. Titov; R. Lionello; J. A. Linker

2011-01-01T23:59:59.000Z

213

Fast Solar Wind and Geomagnetic Variability during the Descendant Phase of the 11?yr Solar Cycle  

Science Journals Connector (OSTI)

Solar activity and its consequences for the interplanetary space are governing and perturbing the Earth’s magnetosphere. The response of the terrestrial magnetosphere displayed as geomagnetic disturbances is measured by several geomagnetic indices. This paper analyses the geomagnetic variability during the descendant phases of the last four solar cycles (Nos. 20–23) under the influence of the high speed streams of the solar wind. The descendant phases of the 11?yr solar cycle are complex intervals of the irrespective cycles during which two magnetic dipoles with opposite polarities are present on the Sun. The variability and statistics of the stream intensity and geomagnetic index Ap during the descendant phases revealed strong activity. The correlation between the geomagnetic indices and the stream intensity during the analyzed intervals was examined. The energy transfer from solar wind into the terrestrial magnetosphere during the main phase of some geomagnetic storm depends of the solar wind energy and magnetic fields (terrestrial and heliospheric) configuration which allows or not reconnections of these fields. Analysis of some geomagnetic storms during the descendant branch of solar cycle 23 put into evidence the main role of the B z component of heliospheric magnetic field in this transfer.

G. Maris; O. Maris

2011-01-01T23:59:59.000Z

214

On the solar cycle dependence of winds and planetary waves as seen from mid-latitude D1 LF mesopause region wind measurements*  

E-Print Network [OSTI]

mesospheric winds at Saskatoon, Canada, which were measured in 1978 and 1979 during high solar activityOn the solar cycle dependence of winds and planetary waves as seen from mid-latitude D1 LF-term trends and in¯uences of solar variability. The response of the prevailing wind to the 11-year solar cycle

Paris-Sud XI, Université de

215

Residual energy in magnetohydrodynamic turbulence and in the solar wind  

E-Print Network [OSTI]

Recent observations indicate that kinetic and magnetic energies are not in equipartition in the solar wind turbulence. Rather, magnetic fluctuations are more energetic and have somewhat steeper energy spectrum compared to the velocity fluctuations. This leads to the presence of the so-called residual energy E_r=E_v-E_b in the inertial interval of turbulence. This puzzling effect is addressed in the present paper in the framework of weak turbulence theory. Using a simple model of weakly colliding Alfv\\'en waves, we demonstrate that the kinetic-magnetic equipartition indeed gets broken as a result of nonlinear interaction of Alfv\\'en waves. We establish that magnetic energy is indeed generated more efficiently as a result of these interactions, which proposes an explanation for the solar wind observations.

Stanislav Boldyrev; Jean Carlos Perez; Vladimir Zhdankin

2011-08-30T23:59:59.000Z

216

Electromagnetic Ion-Beam Instabilities in the Solar Wind  

Science Journals Connector (OSTI)

The stability of a plasma consisting of two, unequal, isotropic, ion beams streaming along a uniform magnetic field has been investigated by numerically solving the full electromagnetic, Vlasov, linear dispersion relation for high-? plasmas. Three instabilities are found: One is closely associated with the usual Alfvén mode and the two others with the "fast" or magnetosonic mode. The importance of these instabilities for certain neutral-beam-injection experiments and in the solar wind is emphasized.

Michael D. Montgomery; S. Peter Gary; D. W. Forslund; W. C. Feldman

1975-09-08T23:59:59.000Z

217

Solar and Wind Easements and Local Option Rights Laws | Department of  

Broader source: Energy.gov (indexed) [DOE]

Local Option Rights Laws Local Option Rights Laws Solar and Wind Easements and Local Option Rights Laws < Back Eligibility Commercial Fed. Government Industrial Local Government Nonprofit Residential Schools State Government Savings Category Heating & Cooling Commercial Heating & Cooling Solar Heating Buying & Making Electricity Water Heating Wind Program Info State Nebraska Program Type Solar/Wind Access Policy Provider Nebraska Energy Office Nebraska's solar and wind easement provisions allow property owners to create binding solar and wind easements for the purpose of protecting and maintaining proper access to sunlight and wind. Originally designed only to apply to solar, the laws were revised in March 1997 (Bill 140) to include wind. Counties and municipalities are permitted to develop zoning

218

Solar and Wind Energy Utilization and Project Development Scenarios |  

Open Energy Info (EERE)

Utilization and Project Development Scenarios Utilization and Project Development Scenarios Dataset Summary Description (Abstract): Solar and wind energy resources in Ethiopia have not been given due attention in the past. Some of the primary reasons for under consideration of these resources are lack of awareness of their potential in the country, the role they can have in the overall energy mix and the social benefits associated with them. Knowledge of the exploitable potential of these resources and identification of potential regions for development will help energy planners and developers to incorporate these resources as alternative means of supplying energy by conducting a more accurate techno-economic analysis which leads to more realistic economic projections. (Purpose): The ultimate objective of this study is to produce a document that comprises country background information on solar and wind energy utilization and project scenarios which present solar and wind energy investment opportunities to investors and decision makers. It is an integrated study with specific objectives of resource documentation including analysis of barriers and policies, identification of potential areas for technology promotion, and nationwide aggregation of potentials and benefits of the resource. The

219

Edison Solar & Wind Ltd | Open Energy Information  

Open Energy Info (EERE)

& Wind Ltd & Wind Ltd Jump to: navigation, search Name Edison Solar & Wind Ltd Address 11 E. Church St, #57 Place Milan, Ohio Zip 44846 Sector Geothermal energy, Solar, Wind energy Product Agriculture; Consulting; Energy provider: power production; Engineering/architectural/design;Installation; Retail product sales and distribution Phone number 419-499-0000 Website http://edisonsolar.net Coordinates 41.297721°, -82.6055097° Loading map... {"minzoom":false,"mappingservice":"googlemaps3","type":"ROADMAP","zoom":14,"types":["ROADMAP","SATELLITE","HYBRID","TERRAIN"],"geoservice":"google","maxzoom":false,"width":"600px","height":"350px","centre":false,"title":"","label":"","icon":"","visitedicon":"","lines":[],"polygons":[],"circles":[],"rectangles":[],"copycoords":false,"static":false,"wmsoverlay":"","layers":[],"controls":["pan","zoom","type","scale","streetview"],"zoomstyle":"DEFAULT","typestyle":"DEFAULT","autoinfowindows":false,"kml":[],"gkml":[],"fusiontables":[],"resizable":false,"tilt":0,"kmlrezoom":false,"poi":true,"imageoverlays":[],"markercluster":false,"searchmarkers":"","locations":[{"text":"","title":"","link":null,"lat":41.297721,"lon":-82.6055097,"alt":0,"address":"","icon":"","group":"","inlineLabel":"","visitedicon":""}]}

220

OSU REC RFP #B13637407P  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

OREGON STATE UNIVERSITY OREGON STATE UNIVERSITY REQUEST FOR PROPOSAL RFP #B13637407P Renewable Energy Credits PROCUREMENT ANALYST: Bonnie Tufts FAX: (541) 737- 2170 Email: Bonnie.Tufts@oregonstate.edu ISSUE DATE: September 17, 2007 PROPOSAL DUE DATE AND TIME: October 12, 2007 @ 3:00PM NO LATE PROPOSALS WILL BE ACCEPTED Web Viewers Note: There may be attachments to this RFP that are not available via the webpage. Contact the procurement analyst listed above to obtain any attachments. RFP SUBMITTAL LOCATION Oregon State University Procurement & Contract Services Attn: Bonnie Tufts 644 SW 13th Street Corvallis, Oregon 97333-4238 2 SCHEDULE OF EVENTS RFP Released:.................................. September 17, 2007 Deadline for Requests for

Note: This page contains sample records for the topic "rfp solar wind" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


221

Green Power Network: Financial Opportunities: RFP Archive  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

March 17,1998 March 17,1998 Project Overview: Wisconsin Electric plans to solicit bids for contracts (5 years or 10 years) for 5 mw of capacity from renewable energy sources to meet the energy needs of WE's Energy for Tomorrow® Renewable Energy Program. Renewable energy purchases through the EFT program are subsidized by EFT customers.This is an open-ended RFP with regularly scheduled reviews of all proposals. The first scheduled review begins on May 15, 1998. This request is only for renewable energy purchases through the Energy for Tomorrow® Program and NOT part of WE's RFP for 250 mw of new generation capacity to be built by June 1, 1999. For More Information or To Request an RFP: All bid related information including the RFP will be available through WE's internet site. In addition, a dedicated hotline phone number and e-mail address are listed below.

222

Electron Cyclotron Heating in RFP plasmas  

SciTech Connect (OSTI)

Reversed field pinches (RFP) plasmas are typically overdense ({omega}{sub pe}>{omega}{sub ce}) and thus not suitable for conventional electron cyclotron (EC) heating and current drive. In recent high plasma current discharges (I{sub p}>1.5 MA), however, the RFX-mod device was operated in underdense conditions ({omega}{sub pe}<{omega}{sub ce}) for the first time in an RFP. Thus, it is now possible to envisage heating the RFP plasma core by conventional EC at the 2nd harmonic, in the ordinary or extraordinary mode. We present a preliminary study of EC-heating feasibility in RFX-mod with the use of beam-tracing and full-wave codes. Although not competitive - as a heating system - with multi-MW Ohmic heating in an RFP, EC might be useful for perturbative transport studies, even at moderate power (hundreds of kW), and, more generally, for applications requiring localized power deposition.

Bilato, R.; Poli, E. [MPI fuer Plasmaphysik-Euratom Association Boltzmannstr. 2, D-85748 Garching (Germany); Volpe, F. [Department of Engineering Physics, University of Wisconsin, Madison, WI (United States); Koehn, A. [Institut fuer Plasmaforschung, Universitaet Stuttgart-Stuttgart (Germany); Cavazzana, R.; Paccagnella, R. [Consorzio RFX-Associazione EURATOM-ENEA sulla fusione-Padova (Italy); Farina, D. [IFP-CNR, EURATOM-ENEA-CNR Association-Milano (Italy)

2009-11-26T23:59:59.000Z

223

X-RAY EMISSION FROM PLANETS AND COMETS: RELATIONSHIP WITH SOLAR X-RAYS AND SOLAR WIND  

E-Print Network [OSTI]

with the occurrence of solar X-ray flare, when light travel time delay is accounted, suggesting that X-rays fromX-RAY EMISSION FROM PLANETS AND COMETS: RELATIONSHIP WITH SOLAR X-RAYS AND SOLAR WIND ANIL BHARDWAJ Flight center, Greenbelt, MD 20771, USA Scattering of solar X-ray radiation mainly produces the non

Ã?stgaard, Nikolai

224

Regional variations in the health, environmental, and climate benefits of wind and solar generation  

Science Journals Connector (OSTI)

...a 1-MW wind turbine will offset more...than a 1-MW solar installation...demand is high and gas is more often...resource, a wind turbine on the plains...emissions than a turbine in West Virginia...benefits when wind or solar displace coal...rather than gas-fired, generators...

Kyle Siler-Evans; Inês Lima Azevedo; M. Granger Morgan; Jay Apt

2013-01-01T23:59:59.000Z

225

The structure and origin of magnetic clouds in the solar wind V. Bothmer1  

E-Print Network [OSTI]

The structure and origin of magnetic clouds in the solar wind V. Bothmer1 * and R. Schwenn2 1 Space-forward interplanetary shock waves, supporting the close association between MCs and SMEs (solar mass ejections). Seven in the surrounding solar wind. Minimum variance analysis (MVA) showed that MCs can best be described as large- scale

Boyer, Edmond

226

Complementary Effect of Wind and Solar Energy Sources in a Microgrid  

E-Print Network [OSTI]

Complementary Effect of Wind and Solar Energy Sources in a Microgrid M. A. Barik, Student Member. Index Terms--Microgrid, renewable energy sources, reactive power mismatch, solar integration, voltage-mass energy, etc. Of them wind and solar energy is broadly used for their characteristics. This paper presents

Pota, Himanshu Roy

227

Propagation of three--dimensional Alfv'en waves in a stratified, thermally conducting solar wind  

E-Print Network [OSTI]

Propagation of three--dimensional Alfv'en waves in a stratified, thermally conducting solar wind S to the well--known thermal expansion of the solar corona [Parker, 1958, 1963, 1991]. In particular Alfv'en waves in the solar atmosphere and wind, taking into account relevant physical effects

228

COLLOQUIUM: On Tracing the Origins of the Solar Wind | Princeton Plasma  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

January 8, 2014, 4:00pm to 5:30pm January 8, 2014, 4:00pm to 5:30pm Colloquia MBG Auditorium COLLOQUIUM: On Tracing the Origins of the Solar Wind Dr. Sarah McGregor Boston University The Sun emits a constant flow of particles from its surface. Mainly composed of Protons and electrons, and dragging with it magnetic fields, this Solar Wind expands outwards from the sun, interacting with planets and spacecraft alike. Since the 1960s, in situ observations have shown that the solar wind is comprised of two distinct states: slow (300550 km/s) and fast (600800 km/s). Temperature, density, and compositional variations between the two suggest different sources for the fast and slow solar wind. Using state of the art models and observations I find that the solar wind observations used to distinguish between fast and slow solar wind are not

229

The Western Wind and Solar Integration Study (Fact Sheet), NREL (National Renewable Energy Laboratory)  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Wear-and-Tear Costs and Emissions Wear-and-Tear Costs and Emissions Impacts of Cycling and Ramping Are Relatively Small The Western Wind and Solar Integration Study (WWSIS) is one of the largest regional wind and solar integration studies to date. It examines the operational impact of up to 35% penetration of wind, photovoltaic (PV), and concentrating solar power (CSP) energy on the electric power system. The goal is to understand the effects of and investigate mitigation options for the variability and uncertainty of wind and solar. Phase 1 Research Phase 1 of the Western Wind and Solar Integration Study (WWSIS1) found no technical barriers to the integration of high penetrations of wind and solar power in the Western Interconnection power system if certain changes to opera- tional practices are made. The two most important changes

230

Look to the Right, Kids: Five Solar/Wind Hybrids | Department of Energy  

Broader source: Energy.gov (indexed) [DOE]

Look to the Right, Kids: Five Solar/Wind Hybrids Look to the Right, Kids: Five Solar/Wind Hybrids Look to the Right, Kids: Five Solar/Wind Hybrids September 1, 2010 - 2:16pm Addthis Genoa Township, Mich., installed five wind/solar hybrid units that will supply up to 20 percent of the township hall’s electrical needs. | Photo Courtesy of Genoa Township Genoa Township, Mich., installed five wind/solar hybrid units that will supply up to 20 percent of the township hall's electrical needs. | Photo Courtesy of Genoa Township Stephen Graff Former Writer & editor for Energy Empowers, EERE What are the key facts? Genoa Township in Michigan uses Recovery Act funds to deploy wind-solar units. Five units to supply up to 20% of township hall's electricity. The highly visible Michigan-manufactured units were installed along

231

Optimizing the Design of a Hybrid Solar-Wind Power Plant to meet Variable Power Demand  

Science Journals Connector (OSTI)

Not enough studies have been done on operating the two most available and renewable energy sources, sun and wind energy, alongside one another. A complementary ... presents an optimal design for a hybrid solar-wind

K. Mousa; A. Diabat

2011-01-01T23:59:59.000Z

232

Using Solar Business Models to Expand the Distributed Wind Market (Presentation)  

SciTech Connect (OSTI)

This presentation to attendees at Wind Powering America's All-States Summit in Chicago describes business models that were responsible for rapid growth in the solar industry and that may be applicable to the distributed wind industry as well.

Savage, S.

2013-05-01T23:59:59.000Z

233

Return on capital and earned carbon credit by hybrid solar Photovoltaic—wind turbine generators  

Science Journals Connector (OSTI)

This paper presents a methodology to optimise a hybrid solar Photovoltaic—wind turbine generator for the villages situated in ... of India. Owing to good insolation and wind density, the hybrid system composed of...

Prabhakant; Basant Agrawal; G. N. Tiwari

2010-03-01T23:59:59.000Z

234

Giotto measurements of cometary and solar wind plasma at the Comet Halley bow shock  

Science Journals Connector (OSTI)

... wind measurement takes 500ms and is repeated every two spacecraft spins or 8 s. The solar wind energy range covers one-quarter of the total energy range in 30 steps; the upper ...

A. J. Coates; R. P. Lin; B. Wilken; E. Amata; K. A. Anderson; H. Borg; D. A. Bryant; C. W. Carlson; D. W. Curtis; V. Formisano; K. Jockers; A. D. Johnstone; A. Korth; D. A. Mendis; H. Reme; A. K. Richter; H. Rosenbauer; J. A. Sauvaud; W. Stüdemann; M. F. Thomsen; C. d'Uston; J. D. Winningham

1987-06-11T23:59:59.000Z

235

EVOLUTION OF THE RELATIONSHIPS BETWEEN HELIUM ABUNDANCE, MINOR ION CHARGE STATE, AND SOLAR WIND SPEED OVER THE SOLAR CYCLE  

SciTech Connect (OSTI)

The changing relationships between solar wind speed, helium abundance, and minor ion charge state are examined over solar cycle 23. Observations of the abundance of helium relative to hydrogen (A{sub He} {identical_to} 100 Multiplication-Sign n{sub He}/n{sub H}) by the Wind spacecraft are used to examine the dependence of A{sub He} on solar wind speed and solar activity between 1994 and 2010. This work updates an earlier study of A{sub He} from 1994 to 2004 to include the recent extreme solar minimum and broadly confirms our previous result that A{sub He} in slow wind is strongly correlated with sunspot number, reaching its lowest values in each solar minima. During the last minimum, as sunspot numbers reached their lowest levels in recent history, A{sub He} continued to decrease, falling to half the levels observed in slow wind during the previous minimum and, for the first time observed, decreasing even in the fastest solar wind. We have also extended our previous analysis by adding measurements of the mean carbon and oxygen charge states observed with the Advanced Composition Explorer spacecraft since 1998. We find that as solar activity decreased, the mean charge states of oxygen and carbon for solar wind of a given speed also fell, implying that the wind was formed in cooler regions in the corona during the recent solar minimum. The physical processes in the coronal responsible for establishing the mean charge state and speed of the solar wind have evolved with solar activity and time.

Kasper, J. C.; Stevens, M. L.; Korreck, K. E.; Maruca, B. A.; Kiefer, K. K. [Harvard-Smithsonian Center for Astrophysics, Cambridge, MA 02138 (United States); Schwadron, N. A. [Institute for the Study of Earth, Oceans and Space, University of New Hampshire, Durham, NH 03824 (United States); Lepri, S. T. [Department of Atmospheric, Oceanic and Space Studies, University of Michigan, Ann Arbor, MI 48109 (United States)

2012-02-01T23:59:59.000Z

236

Property Tax Exemption for Solar and Wind Energy Systems | Department of  

Broader source: Energy.gov (indexed) [DOE]

Property Tax Exemption for Solar and Wind Energy Systems Property Tax Exemption for Solar and Wind Energy Systems Property Tax Exemption for Solar and Wind Energy Systems < Back Eligibility Commercial Industrial Residential Savings Category Solar Buying & Making Electricity Heating & Cooling Water Heating Wind Program Info State Maryland Program Type Property Tax Incentive Rebate Amount 100% real property tax exemption for solar and wind energy property Provider Department of Assessments and Taxation In May 2007, Maryland established a property tax exemption for residential solar energy systems. Under this law solar energy devices "installed to heat or cool a dwelling, generate electricity to be used in the dwelling, or provide hot water for use in the dwelling" were exempt from state -- but not local -- property taxes. However, in April 2008

237

Investigating the Correlation Between Wind and Solar Power Forecast Errors in the Western Interconnection: Preprint  

SciTech Connect (OSTI)

Wind and solar power generations differ from conventional energy generation because of the variable and uncertain nature of their power output. This variability and uncertainty can have significant impacts on grid operations. Thus, short-term forecasting of wind and solar generation is uniquely helpful for power system operations to balance supply and demand in an electricity system. This paper investigates the correlation between wind and solar power forecasting errors.

Zhang, J.; Hodge, B. M.; Florita, A.

2013-05-01T23:59:59.000Z

238

Ulysses solar wind plasma observations from peak southerly latitude through perihelion and beyond  

SciTech Connect (OSTI)

We present Ulysses solar wind plasma data from the peak southerly latitude of {minus}80.2{degrees} through +64.9{degrees} latitude on June 7, 1995. Ulysses encountered fast wind throughout this time except for a 43{degrees} band centered on the solar equator. Median mass flux was nearly constant with latitude, while speed and density had positive and negative poleward gradients, respectively. Solar wind momentum flux was highest at high latitudes, suggesting a latitudinal asymmetry in the heliopause cross section. Solar wind energy flux density was also highest at high latitudes.

Phillips, J.L.; Bame, S.J.; Feldman, W.C.; Gosling, J.T.; McComas, D.J. [Los Alamos National Lab., NM (United States); Goldstein, B.E.; Neugebauer, M. [Jet Propulsion Lab., Pasadena, CA (United States); Hammond, C.M. [SRI International, Menlo Park, CA (United States)

1995-09-01T23:59:59.000Z

239

Operation of Concentrating Solar Power Plants in the Western Wind and Solar Integration Phase 2 Study  

SciTech Connect (OSTI)

The Western Wind and Solar Integration Study (WWSIS) explores various aspects of the challenges and impacts of integrating large amounts of wind and solar energy into the electric power system of the West. The phase 2 study (WWSIS-2) is one of the first to include dispatchable concentrating solar power (CSP) with thermal energy storage (TES) in multiple scenarios of renewable penetration and mix. As a result, it provides unique insights into CSP plant operation, grid benefits, and how CSP operation and configuration may need to change under scenarios of increased renewable penetration. Examination of the WWSIS-2 results indicates that in all scenarios, CSP plants with TES provides firm system capacity, reducing the net demand and the need for conventional thermal capacity. The plants also reduced demand during periods of short-duration, high ramping requirements that often require use of lower efficiency peaking units. Changes in CSP operation are driven largely by the presence of other solar generation, particularly PV. Use of storage by the CSP plants increases in the higher solar scenarios, with operation of the plant often shifted to later in the day. CSP operation also becomes more variable, including more frequent starts. Finally, CSP output is often very low during the day in scenarios with significant PV, which helps decrease overall renewable curtailment (over-generation). However, the configuration studied is likely not optimal for High Solar Scenario implying further analysis of CSP plant configuration is needed to understand its role in enabling high renewable scenarios in the Western United States.

Denholm, P.; Brinkman, G.; Lew, D.; Hummon, M.

2014-05-01T23:59:59.000Z

240

Heating of Coronal Holes and Generation of the Solar Wind by Ion-Cyclotron Resonance  

Science Journals Connector (OSTI)

We discuss a new model to describe the heating of the magnetically open solar corona and ... acceleration of the fast solar wind by the cyclotron resonant interaction of coronal ions with ion-cyclotron waves. Thi...

Philip A. Isenberg

2001-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "rfp solar wind" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


241

Hot star wind models with new solar abundances  

E-Print Network [OSTI]

We compare the hot star wind models calculated assuming older solar abundance determination with models calculated using the recently published values derived from 3D hydrodynamical model atmospheres. We show that the use of new abundances with lower metallicity improves the agreement between wind observation and theory in several aspects: (1) The predicted wind mass-loss rates are lower by a factor of 0.76. This leads to a better agreement with mass-loss rate determinations derived from observations with account of clumping. (2) As a result of the lowering of mass-loss rates, there is a better agreement between predicted modified wind momentum-luminosity relationship and that derived from observations with account of clumping. (3) Both the lower mass fraction of heavier elements and lower mass-loss rates lead to a decrease of the opacity in the X-ray region. This has influence on the prediction of the X-ray line profile shapes. (4) There is a better agreement between predicted PV ionization fractions and those derived from observations.

Jiri Krticka; Jiri Kubat

2007-01-15T23:59:59.000Z

242

Reconnection outflow generated turbulence in the solar wind  

E-Print Network [OSTI]

Petschek-type time-dependent reconnection (TDR) and quasi-stationary reconnection (QSR) models are considered to understand reconnection outflow structures and the features of the associated locally generated turbulence in the solar wind. We show that the outflow structures, such as discontinuites, Kelvin-Helmholtz (KH) unstable flux tubes or continuous space filling flows cannot be distinguished from one-point WIND measurements. In both models the reconnection outflows can generate more or less spatially extended turbulent boundary layers (TBDs). The structure of an unique extended reconnection outflow is investigated in detail. The analysis of spectral scalings and break locations show that reconnection outflows can control the local field and plasma conditions which may play in favor of one or another turbulent dissipation mechanisms with their characteristic scales and wavenumbers.

Vörös, Z; Semenov, V S; Zaqarashvili, T V; Bruno, R; Khodachenko, M

2014-01-01T23:59:59.000Z

243

Two-Dimensional Kinetic Turbulence in the Solar Wind  

Science Journals Connector (OSTI)

We present the first 2D hybrid-Vlasov simulations of turbulence in the solar wind that describe the evolution of the energy spectra in a range of two decades of wavelengths around the ion inertial scale. Several previous magnetohydrodynamics and particle-in-cell simulations in the range of large (fluid) wavelengths showed a marked anisotropy of the energy spectra in the direction perpendicular to the mean magnetic field. Here we give evidence that the parallel direction can also be a privileged way for turbulence to develop towards short scales, where kinetic effects govern the plasma dynamics.

F. Valentini; F. Califano; P. Veltri

2010-05-17T23:59:59.000Z

244

Nature of Subproton Scale Turbulence in the Solar Wind  

Science Journals Connector (OSTI)

The nature of subproton scale fluctuations in the solar wind is an open question, partly because two similar types of electromagnetic turbulence can occur: kinetic Alfvén turbulence and whistler turbulence. These two possibilities, however, have one key qualitative difference: whistler turbulence, unlike kinetic Alfvén turbulence, has negligible power in density fluctuations. In this Letter, we present new observational data, as well as analytical and numerical results, to investigate this difference. These results show, for the first time, that the fluctuations well below the proton scale are predominantly kinetic Alfvén turbulence, and, if present at all, the whistler fluctuations make up only a small fraction of the total energy.

C. H. K. Chen; S. Boldyrev; Q. Xia; J. C. Perez

2013-05-31T23:59:59.000Z

245

Solar and Wind Resource Assessments for Afghanistan and Pakistan  

SciTech Connect (OSTI)

The U.S. National Renewable Energy Laboratory (NREL) has recently completed the production of high-resolution wind and solar energy resource maps and related data products for Afghanistan and Pakistan. The resource data have been incorporated into a geospatial toolkit (GsT), which allows the user to manipulate the resource information along with country-specific geospatial information such as highway networks, power facilities, transmission corridors, protected land areas, etc. The toolkit allows users to then transfer resource data for specific locations into NREL's micropower optimization model known as HOMER.

Renne, D. S.; Kelly, M.; Elliott, D.; George, R.; Scott, G.; Haymes, S.; Heimiller, D.; Milbrandt, A.; Cowlin, S.; Gilman, P.; Perez, R.

2007-01-01T23:59:59.000Z

246

Wind and Solar-Electric (PV) Systems Exemption | Department of Energy  

Broader source: Energy.gov (indexed) [DOE]

You are here You are here Home » Wind and Solar-Electric (PV) Systems Exemption Wind and Solar-Electric (PV) Systems Exemption < Back Eligibility Commercial Industrial Residential Savings Category Solar Buying & Making Electricity Wind Maximum Rebate None Program Info State Minnesota Program Type Property Tax Incentive Rebate Amount Solar: 100% exemption from real property taxes Wind: 100% exemption from real and personal property taxes Provider Minnesota Department of Commerce Minnesota excludes the value added by solar-electric (PV) systems installed after January 1, 1992 from real property taxation. In addition all real and personal property of wind-energy systems is exempt from the state's property tax.* However, the land on which a PV or wind system is located remains taxable.

247

Residential Solar and Wind Energy Systems Tax Credit | Department of Energy  

Broader source: Energy.gov (indexed) [DOE]

Residential Solar and Wind Energy Systems Tax Credit Residential Solar and Wind Energy Systems Tax Credit Residential Solar and Wind Energy Systems Tax Credit < Back Eligibility Residential Savings Category Home Weatherization Commercial Weatherization Solar Lighting Windows, Doors, & Skylights Heating & Cooling Commercial Heating & Cooling Heating Buying & Making Electricity Swimming Pool Heaters Water Heating Wind Maximum Rebate 1,000 maximum credit per residence, regardless of number of energy devices installed Program Info Start Date 1/1/1995 State Arizona Program Type Personal Tax Credit Rebate Amount 25% Provider Arizona Department of Revenue Arizona's Solar Energy Credit is available to individual taxpayers who install a solar or wind energy device at the taxpayer's Arizona residence. The credit is allowed against the taxpayer's personal income tax in the

248

Do You Wonder How Much Energy Your Home Could Get from Solar or Wind? |  

Broader source: Energy.gov (indexed) [DOE]

Do You Wonder How Much Energy Your Home Could Get from Solar or Do You Wonder How Much Energy Your Home Could Get from Solar or Wind? Do You Wonder How Much Energy Your Home Could Get from Solar or Wind? December 16, 2008 - 1:15pm Addthis Elizabeth Spencer Communicator, National Renewable Energy Laboratory Have you ever thought about installing wind or solar energy on your property? Are you curious about what sort of results you could get if you did? Then you might be interested in trying out the National Renewable Energy Laboratory's In My Backyard tool. In My Backyard uses Google Maps and the laboratory's renewable resource databases to estimate how much energy you could produce from wind or solar energy at your location. All you have to do is plug in your address, use the "draw" tool to select where you would construct wind or solar, and plug in a few details about

249

PacifiCorp Green Tags RFP  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

PacifiCorp Green Tags RFP PacifiCorp Green Tags RFP May 25, 2001 Page 1 PacifiCorp REQUEST FOR PROPOSAL FOR TRADEABLE RENEWABLE CREDITS (GREEN TAGS, as defined herein) AND ENVIRONMENTAL MITIGATION PRODUCTS ISSUE DATE: MAY 25, 2001 DUE DATE: At or before 2 p.m. PDT on Monday, June 11, 2001 CONTACT: Jane DoeRoby Roberts PacifiCorp 825 NE Multnomah Avenue, Suite 62000 Portland, Oregon 97232 503 XXX XXX813 - 5975 voice 503 XXX XXX813 - 6260 fax roby.robjane.doerts@pacificorp.com PacifiCorp Green Tags RFP May 25, 2001 Page 2 TABLE OF CONTENTS Section * REQUEST FOR PROPOSALS 1 * GENERAL PROCEDURES 2 * DEFINITIONS 3 * SCHEDULE 4 * EVALUATION 5 * DETAILED PROPOSAL REQUIREMENTS 6 * CONTENT OF RESPONSE 7 * DISCUSSIONS AND RIGHT TO REJECT PROPOSALS 8 * INCURRING COSTS 9 * DISPOSITION OF PROPOSALS AND OWNERSHIP OF DATA 10

250

Integrating High Penetrations of Solar in the Western United States: Results of the Western Wind and Solar Integration Study Phase 2 (Poster)  

SciTech Connect (OSTI)

This poster presents a summary of the results of the Western Wind and Solar Integration Study Phase 2.

Bird, L.; Lew, D.

2013-10-01T23:59:59.000Z

251

Scaling of the electron dissipation range of solar wind turbulence  

E-Print Network [OSTI]

Electron scale solar wind turbulence has attracted great interest in recent years. Clear evidences have been given from the Cluster data that turbulence is not fully dissipated near the proton scale but continues cascading down to the electron scales. However, the scaling of the energy spectra as well as the nature of the plasma modes involved at those small scales are still not fully determined. Here we survey 10 years of the Cluster search-coil magnetometer (SCM) waveforms measured in the solar wind and perform a statistical study of the magnetic energy spectra in the frequency range [$1, 180$]Hz. We show that a large fraction of the spectra exhibit clear breakpoints near the electon gyroscale $\\rho_e$, followed by steeper power-law like spectra. We show that the scaling below the electron breakpoint cannot be determined unambiguously due to instrumental limitations that will be discussed in detail. We compare our results to recent ones reported in other studies and discuss their implication on the physical...

Sahraoui, F; De Patoul, J; Belmont, G; Goldstein, M L; Retino, A; Robert, P; Cornilleau-Wehrlin, N; Canu, P

2013-01-01T23:59:59.000Z

252

Solar wind energy dissipation in the upper atmosphere  

Science Journals Connector (OSTI)

The dissipation of solar wind energy makes an important contribution to the energy budget of the earth's upper atmosphere. Heating and momentum transfer by this energy source generate a permanent disturbance zone in the polar region which is characterized by an increase in the temperature and pressure, strong vertical and horizontal winds, and significant changes in the density structure. Heavier gases like Ar, O2 and N2 are enhanced, He depleted, and O moderately enhanced or depleted depending on the altitude. The extension and latitudinal structure of this disturbance zone sensitively depend on a number of parameters including the level of magnetic activity, the season, local, universal and storm time, and solar activity. The same parameters also determine the magnitude of the perturbation. Changes outside the disturbance zone are relatively small and are characterized by an increase of all gas constituents. Whereas present models do provide a first order description, more sophisticated algorithms are needed for a satisfactory representation of the disturbance effects.

G.W. Prölss

1983-01-01T23:59:59.000Z

253

Three-dimensional multifluid simulations of ionospheric loss at Mars from nominal solar wind conditions  

E-Print Network [OSTI]

Three-dimensional multifluid simulations of ionospheric loss at Mars from nominal solar wind (2006), Three-dimensional multifluid simulations of ionospheric loss at Mars from nominal solar wind 2006; accepted 30 June 2006; published 21 September 2006. [1] Three-dimensional multifluid simulations

Harnett , Erika

254

Experimental evidence of phase coherence of magnetohydrodynamic turbulence in the solar wind: GEOTAIL satellite data  

Science Journals Connector (OSTI)

...research, the amplitude (power spectrum) has been discussed...Saito 1969) and the power-law type spectrum of...turbulence in the solar wind (Goldstein Roberts 1999...spacecraft in the solar wind. From the original data...original data into the power spectrum and the phases...

2008-01-01T23:59:59.000Z

255

Abstract--The variability and non-dispatchable nature of wind and solar energy production presents  

E-Print Network [OSTI]

1 Abstract--The variability and non-dispatchable nature of wind and solar energy production needed for a variety of energy storage applications can be found in [6]. Wind and solar power variations, energy storage can be a viable solution to balance energy production against its consumption. This paper

256

The radial temperature profile of the solar wind John D. Richardson  

E-Print Network [OSTI]

The radial temperature profile of the solar wind John D. Richardson Center for Space Research, Massachusetts Institute of Technology, Cambridge, Massachusetts, USA Charles W. Smith Bartol Research Institute but do not account for the smaller scale (few AU) temperature variations. At 1 AU, the solar wind

Richardson, John

257

New Report: Integrating More Wind and Solar Reduces Utilities' Carbon Emissions and Fuel Costs  

Broader source: Energy.gov [DOE]

The National Renewable Energy Laboratory (NREL) released Phase 2 of the Western Wind and Solar Integration Study (WWSIS-2), a follow-up to the initial WWSIS released in May 2010, which examined the viability, benefits, and challenges of integrating as much as 33% wind and solar power into the electricity grid of the western United States.

258

The maximum efficiency of the conversion of solar energy into wind energy  

Science Journals Connector (OSTI)

In the present paper the Gordon and Zarmi model is applied for the conversion of solar energy into wind energy in such a way that simple calculations lead to a universal result: The upper bound for the conversion efficiency of solar energy into wind energy equals 8.3%.

Alexis De Vos; Guust Flater

1991-01-01T23:59:59.000Z

259

Impact of increased penetration of wind and PV solar resources on the  

E-Print Network [OSTI]

Impact of increased penetration of wind and PV solar resources on the bulk power system Vijay the impact of increased penetration of wind and solar resources on the bulk energy system (BES) · The BES Vittal Ira A. Fulton Chair Professor School of Electrical, Computer and Energy Engineering Arizona State

260

Larmor radius size density holes discovered in the solar wind upstream of Earth's bow shock  

E-Print Network [OSTI]

Larmor radius size density holes discovered in the solar wind upstream of Earth's bow shock G. K, University of New Brunswick, Canada M. L. Goldstein NASA Goddard Space Flight Center, Greenbelt, Maryland P that are five or more times the solar wind density. Particle distributions show the steepened edge can behave

California at Berkeley, University of

Note: This page contains sample records for the topic "rfp solar wind" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


261

Preliminary Simulations of FLR effects on RFP tearing modes.  

E-Print Network [OSTI]

.g. spheromaks, RFP's, FRC's · extensive efforts past and present - Barnes&Milroy, Park et al., Belova, Todo

262

Sales and Use Tax Exemption for Residential Solar and Wind Electricity  

Broader source: Energy.gov (indexed) [DOE]

Sales and Use Tax Exemption for Residential Solar and Wind Sales and Use Tax Exemption for Residential Solar and Wind Electricity Sales (Maryland) Sales and Use Tax Exemption for Residential Solar and Wind Electricity Sales (Maryland) < Back Eligibility General Public/Consumer Residential Savings Category Solar Buying & Making Electricity Wind Maximum Rebate None Program Info Start Date 07/01/2011 State Maryland Program Type Sales Tax Incentive Rebate Amount 100% exemption from sales and use tax Provider Revenue Administration Center In May 2011 Maryland enacted legislation providing a sales and use tax exemption for sales of electricity from qualifying solar energy and residential wind energy equipment to residential customers. In order to qualify for the exemption, the sale of electricity must be for residential

263

10 Questions for a Wind & Solar Integration Analyst: Kirsten Orwig |  

Broader source: Energy.gov (indexed) [DOE]

10 Questions for a Wind & Solar Integration Analyst: Kirsten Orwig 10 Questions for a Wind & Solar Integration Analyst: Kirsten Orwig 10 Questions for a Wind & Solar Integration Analyst: Kirsten Orwig March 31, 2011 - 4:58pm Addthis Scientist Kirsten Orwig Scientist Kirsten Orwig Niketa Kumar Niketa Kumar Public Affairs Specialist, Office of Public Affairs Working at the intersection of renewable energy technologies and meteorology, National Renewable Energy Laboratory (NREL) scientist Kirsten Orwig specializes in transmission and grid integration for wind and solar energy. She shared with us how her experiences in storm chasing led her to this position at NREL and why understanding meteorology is important for advancing reliable solar and wind energy. Q: What prompted you to specialize in a scientific field? Kirsten Orwig: Growing up I was always fascinated with natural phenomena,

264

Geek-Up[3.25.2011]: Idaho Wind and Chlorosome-Inspired Solar | Department  

Broader source: Energy.gov (indexed) [DOE]

3.25.2011]: Idaho Wind and Chlorosome-Inspired Solar 3.25.2011]: Idaho Wind and Chlorosome-Inspired Solar Geek-Up[3.25.2011]: Idaho Wind and Chlorosome-Inspired Solar March 25, 2011 - 5:26pm Addthis INL researchers use data from the weather stations to create a 3D mean wind speed map. The scale shows wind speeds in meters per second. | Department of Energy Image | Courtesy of Idaho National Laboratory | Public Domain | INL researchers use data from the weather stations to create a 3D mean wind speed map. The scale shows wind speeds in meters per second. | Department of Energy Image | Courtesy of Idaho National Laboratory | Public Domain | Niketa Kumar Niketa Kumar Public Affairs Specialist, Office of Public Affairs In the continental United States, around 500 power companies operate a massive, complex network of more than 160,000 miles of high-voltage

265

Probabilistic modelling of hybrid solar/wind power system with solar tracking system  

Science Journals Connector (OSTI)

This paper presents a probabilistic model applied to a hybrid solar-wind power system (HSWPS), which is equipped with either a one-axis or a two-axis solar tracking system. Within the framework of a case study, the potential of the developed probabilistic approach is presented, and the effect of the solar tracking systems on the annual energy gain is discussed. Specifically, the impact of a tracking system on the probability density function (PDF) of the power produced by a photovoltaic system (PVS) is evaluated through the first four moments (mean, variance, skewness and kurtosis) of a PDF. Finally, to estimate the impact of a tracking system on HSWPS energy performance, a reliability analysis is performed using the energy index of reliability (EIR), which is directly related to energy expected not supplied (EENS), given different annual load scenarios.

Giuseppe Marco Tina; Salvina Gagliano

2011-01-01T23:59:59.000Z

266

Ulysses solar wind plasma observations from peak southerly latitude through perihelion and beyond  

Science Journals Connector (OSTI)

We present Ulysses solar wind plasma data from the peak southerly latitude of ?80.2° through +64.9° latitude on June 7 1995. Ulysses encountered fast wind throughout this time except for a 43° equatorial band. Mass flux was nearly constant with latitude while speed (density) had positive (negative) poleward gradients. Momentum flux was highest at high latitudes suggesting a latitudinal asymmetry in the heliopause cross section. Solar wind energy flux density was also highest at high latitudes.

J. L. Phillips; S. J. Bame; W. C. Feldman; J. T. Gosling; D. J. McComas; B. E. Goldstein; M. Neugebauer; C. M. Hammond

1996-01-01T23:59:59.000Z

267

Hybrid Solar-Wind Generates Savings for South Dakota City | Department of  

Broader source: Energy.gov (indexed) [DOE]

Hybrid Solar-Wind Generates Savings for South Dakota City Hybrid Solar-Wind Generates Savings for South Dakota City Hybrid Solar-Wind Generates Savings for South Dakota City July 19, 2010 - 4:05pm Addthis What does this project do? The projects will reduce the city's natural gas and electric bills by an estimated $2,700. An array of six solar panels, similar to the ones shown, will be installed at Colton, S.D.'s city hall. | Photo courtesy of Colton. The city of Colton, South Dakota. is a small, agriculturally-based community. So small that Mayor Erik Miller says if his two Labrador retrievers ever got lost, local residents would have no trouble finding them. "Colton is like taking a trip to the past," says Miller. Still, the mayor is looking to create a new energy future for Colton, deploying one small-scale solar and two solar-wind hybrid systems, and

268

Solar and Wind Energy Device Franchise Tax Deduction | Department of Energy  

Broader source: Energy.gov (indexed) [DOE]

Solar and Wind Energy Device Franchise Tax Deduction Solar and Wind Energy Device Franchise Tax Deduction Solar and Wind Energy Device Franchise Tax Deduction < Back Eligibility Commercial Industrial Savings Category Solar Buying & Making Electricity Heating & Cooling Commercial Heating & Cooling Heating Water Heating Wind Maximum Rebate None Program Info Start Date 1982 State Texas Program Type Corporate Deduction Rebate Amount 10% of amortized cost Provider Comptroller of Public Accounts Texas allows a corporation or other entity subject the state franchise tax to deduct the cost of a solar energy device from the franchise tax. Entities are permitted to deduct 10% of the amortized cost of the system from their apportioned margin. The franchise tax is Texas's equivalent to a corporate tax. For the purposes of this deduction, a solar energy device means "a system

269

2.5-D fluid simulations of the solar wind interacting with multiple dipoles on the surface of the Moon  

E-Print Network [OSTI]

2.5-D fluid simulations of the solar wind interacting with multiple dipoles on the surface: Harnett, E. M., and R. M. Winglee, 2.5-D fluid simulations of the solar wind interacting with multiple. Introduction [2] Two-dimensional (2-D) MHD simulations of the solar wind interaction with the lunar magnetic

Harnett , Erika

270

Solar-wind protons and heavy ions sputtering of lunar surface materials A.F. Barghouty a,  

E-Print Network [OSTI]

Solar-wind protons and heavy ions sputtering of lunar surface materials A.F. Barghouty a, , F Available online 21 December 2010 Keywords: Solar wind sputtering Lunar regolith KREEP soil Potential a c t Lunar surface materials are exposed to $1 keV/amu solar-wind protons and heavy ions on almost

271

EU NATO Advanced Research Workshop "Hybrid SolarWind Systems: Effective Implementation Conditions", Tashkent, Uzbekistan, 2224 May, 2002.  

E-Print Network [OSTI]

Implementation Conditions", Tashkent, Uzbekistan, 2224 May, 2002. SOLAR AND WIND RESOURCES ESTIMATION resources of solar and wind energies. This paper presents some of the means and tools for estimation. 1 of energy development. In this paper, we propose a small review of tools for measuring solar and wind

Paris-Sud XI, Université de

272

Dropouts of the outer electron radiation belt in response to solar wind stream interfaces: global positioning system observations  

Science Journals Connector (OSTI)

...epoch plots of both solar wind and magnetospheric...67 SIs. In each panel the superposed epoch...The lower three panels give the solar wind radial velocity...Superposed epoch plots of solar wind and magnetospheric...table-2. In each panel the superposed epoch...

2010-01-01T23:59:59.000Z

273

Deep Solar Activity Minimum 2007?–?2009: Solar Wind Properties and Major Effects on the Terrestrial Magnetosphere  

Science Journals Connector (OSTI)

We next discuss the solar wind energy densities and their ratio, the so-called...1999). Figures 6 and 7 show the magnetic (E mag=B 2/2? 0) and kinetic (E ...

C. J. Farrugia; B. Harris; M. Leitner; C. Möstl; A. B. Galvin…

2012-11-01T23:59:59.000Z

274

A Dynamical Model of Plasma Turbulence in the Solar Wind  

E-Print Network [OSTI]

A dynamical approach, rather than the usual statistical approach, is taken to explore the physical mechanisms underlying the nonlinear transfer of energy, the damping of the turbulent fluctuations, and the development of coherent structures in kinetic plasma turbulence. It is argued that the linear and nonlinear dynamics of Alfven waves are responsible, at a very fundamental level, for some of the key qualitative features of plasma turbulence that distinguish it from hydrodynamic turbulence, including the anisotropic cascade of energy and the development of current sheets at small scales. The first dynamical model of kinetic turbulence in the weakly collisional solar wind plasma that combines self-consistently the physics of Alfven waves with the development of small-scale current sheets is presented and its physical implications are discussed. This model leads to a simplified perspective on the nature of turbulence in a weakly collisional plasma: the nonlinear interactions responsible for the turbulent casca...

Howes, G G

2015-01-01T23:59:59.000Z

275

Western Wind and Solar Integration Study Phase 2 (Presentation)  

SciTech Connect (OSTI)

This presentation accompanies Phase 2 of the Western Wind and Solar Integration Study, a follow-on to Phase 1, which examined the operational impacts of high penetrations of variable renewable generation on the electric power system in the West and was one of the largest variable generation studies to date. High penetrations of variable generation can induce cycling of fossil-fueled generators. Cycling leads to wear-and-tear costs and changes in emissions. Phase 2 calculated these costs and emissions, and simulated grid operations for a year to investigate the detailed impact of variable generation on the fossil-fueled fleet. The presentation highlights the scope of the study and results.

Lew, D.; Brinkman, G.; Ibanez, E.; Kumar, N.; Lefton, S.; Jordan, G.; Venkataraman, S.; King, J.

2013-06-01T23:59:59.000Z

276

Comment on 'Air Emissions Due to Wind and Solar Power'  

SciTech Connect (OSTI)

Katzenstein and Apt investigate the important question of pollution emission reduction benefits from variable generation resources such as wind and solar. Their methodology, which couples an individual variable generator to a dedicated gas plant to produce a flat block of power, is, however, inappropriate. For CO{sub 2}, the authors conclude that variable generators ''achieve {approx}80% of the emission reductions expected if the power fluctuations caused no additional emissions.'' They find even lower NO{sub x} emission reduction benefits with steam injected gas turbines and a 2--4 times net increase in NO{sub x} emissions for systems with dry NO{sub x} control unless the ratio of energy from natural gas to variable plants is greater than 2:1. A more appropriate methodology, however, would find a significantly lower degradation of the emissions benefit than suggested by Katzenstein and Apt.

Mills, A.; Wiser, R.; Milligan, M.; O'Malley, M.

2009-01-01T23:59:59.000Z

277

CHARGE STATE EVOLUTION IN THE SOLAR WIND. II. PLASMA CHARGE STATE COMPOSITION IN THE INNER CORONA AND ACCELERATING FAST SOLAR WIND  

SciTech Connect (OSTI)

In the present work, we calculate the evolution of the charge state distribution within the fast solar wind. We use the temperature, density, and velocity profiles predicted by Cranmer et al. to calculate the ionization history of the most important heavy elements in the solar corona and solar wind: C, N, O, Ne, Mg, Si, S, and Fe. The evolution of each charge state is calculated from the source region in the lower chromosphere to the final freeze-in point. We show that the solar wind velocity causes the plasma to experience significant departures from equilibrium at very low heights, well inside the field of view (within 0.6 R{sub sun} from the solar limb) of nearly all the available remote-sensing instrumentation, significantly affecting observed spectral line intensities. We also study the evolution of charge state ratios with distance from the source region, and the temperature they indicate if ionization equilibrium is assumed. We find that virtually every charge state from every element freezes in at a different height, so that the definition of freeze-in height is ambiguous. We also find that calculated freeze-in temperatures indicated by charge state ratios from in situ measurements have little relation to the local coronal temperature of the wind source region, and stop evolving much earlier than their correspondent charge state ratio. We discuss the implication of our results on plasma diagnostics of coronal holes from spectroscopic measurements as well as on theoretical solar wind models relying on coronal temperatures.

Landi, E.; Gruesbeck, J. R.; Lepri, S. T.; Zurbuchen, T. H.; Fisk, L. A. [Department of Atmospheric, Oceanic and Space Sciences, University of Michigan, Ann Arbor, MI 48109 (United States)

2012-12-10T23:59:59.000Z

278

Collisional Thermalization of Hydrogen and Helium in Solar Wind Plasma  

E-Print Network [OSTI]

In situ observations of the solar wind frequently show the temperature of $\\alpha$-particles (fully ionized helium), $T_\\alpha$, to significantly differ from that of protons (ionized hydrogen), $T_p$. Many heating processes in the plasma act preferentially on $\\alpha$-particles, even as collisions among ions act to gradually establish thermal equilibrium. Measurements from the $\\textit{Wind}$ spacecraft's Faraday cups reveal that, at $r=1.0\\ \\textrm{AU}$ from the Sun, the observed values of the $\\alpha$-proton temperature ratio, $\\theta_{\\alpha p} \\equiv T_\\alpha\\,/\\,T_p$ has a complex, bimodal distribution. This study applied a simple model for the radial evolution of $\\theta_{\\alpha p}$ to these data to compute expected values of $\\theta_{\\alpha p}$ at $r=0.1\\ \\textrm{AU}$. These inferred $\\theta_{\\alpha p}$-values have no trace of the bimodality seen in the $\\theta_{\\alpha p}$-values measured at $r=1.0\\ \\textrm{AU}$ but are instead consistent with the actions of the known mechanisms for $\\alpha$-particle p...

Maruca, Bennett A; Sorriso-Valvo, Luca; Kasper, Justin C; Stevens, Michael L

2013-01-01T23:59:59.000Z

279

High Performance Windows Volume Purchase: The Windows Volume Purchase RFP  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

The Windows The Windows Volume Purchase RFP to someone by E-mail Share High Performance Windows Volume Purchase: The Windows Volume Purchase RFP on Facebook Tweet about High Performance Windows Volume Purchase: The Windows Volume Purchase RFP on Twitter Bookmark High Performance Windows Volume Purchase: The Windows Volume Purchase RFP on Google Bookmark High Performance Windows Volume Purchase: The Windows Volume Purchase RFP on Delicious Rank High Performance Windows Volume Purchase: The Windows Volume Purchase RFP on Digg Find More places to share High Performance Windows Volume Purchase: The Windows Volume Purchase RFP on AddThis.com... Home About FAQs Low-E Storm Windows Request for Proposal Contacts For Builders For Residential Buyers For Light Commercial Buyers For Manufacturers

280

Transmission Benefits of Co-Locating Concentrating Solar Power and Wind  

SciTech Connect (OSTI)

In some areas of the U.S. transmission constraints are a limiting factor in deploying new wind and concentrating solar power (CSP) plants. Texas is an example of one such location, where the best wind and solar resources are in the western part of the state, while major demand centers are in the east. The low capacity factor of wind is a compounding factor, increasing the relative cost of new transmission per unit of energy actually delivered. A possible method of increasing the utilization of new transmission is to co-locate both wind and concentrating solar power with thermal energy storage. In this work we examine the benefits and limits of using the dispatachability of thermal storage to increase the capacity factor of new transmission developed to access high quality solar and wind resources in remote locations.

Sioshansi, R.; Denholm, P.

2012-03-01T23:59:59.000Z

Note: This page contains sample records for the topic "rfp solar wind" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


281

A novel optimization sizing model for hybrid solar-wind power generation system  

Science Journals Connector (OSTI)

This paper develops the Hybrid Solar-Wind System Optimization Sizing (HSWSO) model, to optimize the capacity sizes of different components of hybrid solar-wind power generation systems employing a battery bank. The HSWSO model consists of three parts: the model of the hybrid system, the model of Loss of Power Supply Probability (LPSP) and the model of the Levelised Cost of Energy (LCE). The flow chart of the HSWSO model is also illustrated. With the incorporated HSWSO model, the sizing optimization of hybrid solar-wind power generation systems can be achieved technically and economically according to the system reliability requirements. A case study is reported to show the importance of the HSWSO model for sizing the capacities of wind turbines, PV panel and battery banks of a hybrid solar-wind renewable energy system.

Hongxing Yang; Lin Lu; Wei Zhou

2007-01-01T23:59:59.000Z

282

Production of Wind or Solar Energy on School and Public Lands (Nebraska) |  

Broader source: Energy.gov (indexed) [DOE]

Production of Wind or Solar Energy on School and Public Lands Production of Wind or Solar Energy on School and Public Lands (Nebraska) Production of Wind or Solar Energy on School and Public Lands (Nebraska) < Back Eligibility Agricultural Commercial Construction Fed. Government Fuel Distributor General Public/Consumer Industrial Installer/Contractor Institutional Investor-Owned Utility Local Government Low-Income Residential Multi-Family Residential Municipal/Public Utility Nonprofit Residential Retail Supplier Rural Electric Cooperative Schools State/Provincial Govt Systems Integrator Transportation Tribal Government Utility Savings Category Solar Buying & Making Electricity Wind Program Info State Nebraska Program Type Siting and Permitting Provider Board of Educational Lands and Funds These regulations govern the implementation and development of wind and

283

Numerical estimation model of energy conversion for small hybrid solar–wind system  

Science Journals Connector (OSTI)

This article presents a numerical model which can estimate the energy conversions of separate and hybrid solar–wind systems under variable weather. The model integrates the equations associated with the characteristics of photovoltaic generation, wind energy conversion, energy balance, and battery bank, and uses the local database for radiation, wind speed, and ambient temperature. Once the equation associated with the characteristics of load is given, the numerical model can estimate the monthly and yearly powers output of the separate and hybrid solar–wind systems provided with different configurations. As a fundamental research, the presentations of daily profiles of solar radiation, wind energy, and ambient temperature are explained in detail, and the combination of the characteristics of wind energy conversion and battery bank is determined. The condition of hybrid action is shown, and the solutions are certain to be found. The operation strategies of separate and hybrid systems are also presented.

Shun Ching Lee

2012-01-01T23:59:59.000Z

284

DOE Solar Decathlon: Crowder College: Basking in the Sun (and Wind)  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Crowder's 2005 house near the Nordtank wind turbine on campus. Crowder's 2005 house near the Nordtank wind turbine on campus. Enlarge image Together with a 65-kW wind turbine, Crowder College's Solar Decathlon 2005 and 2002 houses will provide power for the Missouri Alternative and Renewable Energy Technology Center. (Courtesy of Crowder College) Who: Crowder College What: Arts and Crafts House Where: Crowder College 601 Laclede Ave. Neosho, MO 64850 Map This House Public tours: Not available Solar Decathlon 2005 Crowder College: Basking in the Sun (and Wind) Following the U.S. Department of Energy Solar Decathlon 2005, the solar-powered house designed by Crowder College returned to the school's Missouri campus. It was reconstructed alongside the 2002 MUIR House on the west side of campus by a fitness trail. Both Solar Decathlon houses have been used for public tours as well as for

285

Wind and Solar Resource Assessment of Sri Lanka and the Maldives (CD-ROM)  

SciTech Connect (OSTI)

The Wind and Solar Resource Assessment of Sri Lanka and the Maldives CD contains an electronic version of Wind Energy Resource Atlas of Sri Lanka and the Maldives (NREL/TP-500-34518), Solar Resource Assessment for Sri Lanka and the Maldives (NREL/TO-710-34645), Sri Lanka Wind Farm Analysis and Site Selection Assistance (NREL/SR-500-34646), GIS Data Viewer (software and data files with a readme file), and Hourly Solar and Typical Meteorological Year Data with a readme file.

Elliott, D.; Schwartz, M.; Scott, G.; Haymes, S.; Heimiller, D.; George, R.

2003-08-01T23:59:59.000Z

286

Geek-Up[4.29.2011]: Boosting the Efficiency of Wind and Solar Power |  

Broader source: Energy.gov (indexed) [DOE]

Geek-Up[4.29.2011]: Boosting the Efficiency of Wind and Solar Power Geek-Up[4.29.2011]: Boosting the Efficiency of Wind and Solar Power Geek-Up[4.29.2011]: Boosting the Efficiency of Wind and Solar Power April 29, 2011 - 5:14pm Addthis Niketa Kumar Niketa Kumar Public Affairs Specialist, Office of Public Affairs It's a big month for the National Wind Technology Center. Earlier this week, the Department of Energy's National Renewable Energy Laboratory (NREL) commemorated the successful installation and full capacity operation of a 3 megawatt Alstom ECO 100 wind turbine at the center. As part of a long-term collaboration between NREL and Alstom, engineers from the two institutions will perform a series of analyses and tests to evaluate Alstom's unique drive train configuration technology. After this initial testing is complete, the joint team will continue

287

Sensitive Test for Ion-Cyclotron Resonant Heating in the Solar Wind  

Science Journals Connector (OSTI)

Plasma carrying a spectrum of counterpropagating field-aligned ion-cyclotron waves can strongly and preferentially heat ions through a stochastic Fermi mechanism. Such a process has been proposed to explain the extreme temperatures, temperature anisotropies, and speeds of ions in the solar corona and solar wind. We quantify how differential flow between ion species results in a Doppler shift in the wave spectrum that can prevent this strong heating. Two critical values of differential flow are derived for strong heating of the core and tail of a given ion distribution function. Our comparison of these predictions to observations from the Wind spacecraft reveals excellent agreement. Solar wind helium that meets the condition for strong core heating is nearly 7 times hotter than hydrogen on average. Ion-cyclotron resonance contributes to heating in the solar wind, and there is a close link between heating, differential flow, and temperature anisotropy.

Justin C. Kasper; Bennett A. Maruca; Michael L. Stevens; Arnaud Zaslavsky

2013-02-28T23:59:59.000Z

288

Non-thermal solar wind heating by supra-thermal ions  

Science Journals Connector (OSTI)

The effect of a new energy source due to energies transferred from supra-thermal secondary ions on the temperature profile of the solar wind has been considered. For this purpose ... solution of a tri-fluid model...

H. J. Fahr

1973-05-01T23:59:59.000Z

289

One Optimal Sizing Method for Designing Hybrid Solar-Wind-Diesel Power Generation Systems  

Science Journals Connector (OSTI)

This paper recommended an optimal design model for designing stand-alone hybrid solar-wind-diesel systems. The optimum configuration ensures that the annualized cost of the systems is minimized while satisfying t...

Zhou Wei; Yang Hongxing

2009-01-01T23:59:59.000Z

290

Hybrid Simulations of Wave Propagation and Ion Cyclotron Heating in the Expanding Solar Wind  

Science Journals Connector (OSTI)

We present results from hybrid (particle ions, fluid electrons) simulations of the evolution of Alfvén waves close to the ion cyclotron frequency in the solar wind, which take ... and the consequent decrease in m...

Paulett Liewer; Marco Velli; Bruce Goldstein

1999-01-01T23:59:59.000Z

291

Hybrid Simulations of Wave Propagation and Ion Cyclotron Heating in the Expanding Solar Wind  

Science Journals Connector (OSTI)

We present results from hybrid (particle ions, fluid electrons) simulations of the evolution of Alfvén waves close to the ion cyclotron frequency in the solar wind, which take ... and the consequent decrease in m...

Paulett Liewer; Marco Velli; Bruce Goldstein

292

New Battery Design Could Help Solar and Wind Power the Grid | Department of  

Broader source: Energy.gov (indexed) [DOE]

Battery Design Could Help Solar and Wind Power the Grid Battery Design Could Help Solar and Wind Power the Grid New Battery Design Could Help Solar and Wind Power the Grid April 24, 2013 - 4:20pm Addthis NEWS MEDIA CONTACT (202) 586-4940 WASHINGTON - Researchers from the U.S. Department of Energy's (DOE) SLAC National Accelerator Laboratory and Stanford University have designed a low-cost, long-life "flow" battery that could enable solar and wind energy to become major suppliers to the electrical grid. The research, led by Yi Cui, a Stanford associate professor and member of the Stanford Institute for Materials and Energy Sciences, is a product of the new Joint Center for Energy Storage Research (JCESR), a DOE Energy Innovation Hub. Led by Argonne National Laboratory, with SLAC as major partner, JCESR is one of five such Hubs created by the Department to

293

Intense plasma waves at and near the solar wind termination shock  

Science Journals Connector (OSTI)

... from the Sun. If the electric field spectral densities are normalized by dividing by the solar wind energy density and the frequencies are normalized by dividing by the electron plasma frequency, then ...

D. A. Gurnett; W. S. Kurth

2008-07-03T23:59:59.000Z

294

On the magnetospheric boundary layer and solar wind energy transfer into the magnetosphere  

Science Journals Connector (OSTI)

The magnetopause and the magnetospheric boundary layer constitute the interface between the shocked solar wind plasma and the terrestrial magnetic cavity populated by a predominantly hot plasma in the outer po...

Rickard Lundin

1988-01-01T23:59:59.000Z

295

Density Perturbations in the Upper Atmosphere Caused by the Dissipation of Solar Wind Energy  

Science Journals Connector (OSTI)

The upper atmosphere constitutes the outer region of the terrestrial gas envelope above about 100 km altitude. The energy budget of this outer gas layer is partly controlled by the dissipation of solar wind energy

Gerd W. Prölss

2011-03-01T23:59:59.000Z

296

The Western Wind and Solar Integration Study Phase 2 (Fact Sheet), NREL (National Renewable Energy Laboratory)  

Broader source: Energy.gov [DOE]

This is one-page, two-sided fact sheet presents high-level summary results of the Western Wind and Solar Integration Study Phase 2, which examined operational impacts of high penetrations of variable renewable generation in the West.

297

The independency of stellar mass-loss rates on stellar X-ray luminosity and activity level based on solar X-ray flux and solar wind observations  

Science Journals Connector (OSTI)

......observed at inner parts of the Solar system, in particular at the beginning of the year 2000. This can be due to solar wind energy exchange with pickup ions, CIRs or other temporal variations of the solar wind at that distance, which cannot be......

O. Cohen

2011-11-11T23:59:59.000Z

298

DOE Hydrogen Program Record 5011 - Hydrogen Potential from Solar and Wind Resources  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

DOE Hydrogen Program Record Record #: 5011 Date: December 15, 2005 Title: Hydrogen Potential from Solar and Wind Resources Items: - Data/resource maps indicate that the potential exists to use wind and solar resources to produce more than 15 times the amount of hydrogen needed to displace the petroleum used by light duty vehicles in 2040. - About one billion metric tons of hydrogen could be produced by renewable electrolysis annually, based upon solar and wind resource potential. - The other three solar pathways - thermochemical, photoelectrochemical, and photobiological - would have similar or possibly higher productivity per unit of land area. Data: Figure 1: Hydrogen Potential from Solar Resources Note: Map shows total kilograms of hydrogen per county, normalized by

299

Solar and Wind Energy Resource Assessment in Nepal | OpenEI  

Open Energy Info (EERE)

in Nepal in Nepal Dataset Summary Description (Abstract): Global Horizontal Solar Irradiance is developed based on a linear regression model that has been developed to correlate the theoretical and ground measured solar irradiance on the basis of available ground measured Global Horizontal Solar Irradiance at three locations: a) Syangboche (Solukhumbu) b) Pulchowk (Lalitpur) and c) Prakashpur (Sunsari). These locations represent the three different geographical regions: Mountain, Hill and Plain. The model is used for converting the theoretical Global Horizontal Solar Irradiance to actual solar irradiance in 15 meteorological stations spread throughout the country. Interpolating the data obtained at these stations, a map has been developed using ArcView GIS software. The existing methodology for projecting wind speedat 2m height from DHM meteorological station data to 10m height, shows a deviated figures. In other to develop wind map, valid methodology is required which can project the low height wind speed to higher heights. The projected data (Thini and Thakmarpha) when

300

On Theories for Stochastic Acceleration in the Solar Wind  

Science Journals Connector (OSTI)

The suprathermal tails on the distribution functions of ions in the solar wind are observed to have a common spectral shape in many different circumstances: a power law in particle speed with spectral index of –5. Three possible approaches for explaining these observations are considered: (1) the acceleration mechanism of Fisk & Gloeckler in which energy is redistributed from a core particle population into the suprathermal tail; (2) traditional stochastic acceleration in which particles are accelerated by damping turbulence; and (3) the statistical approach introduced by Schwadron et al. in which the –5 spectrum is formed by averaging over individual spectra. The acceleration mechanism of Fisk & Gloeckler has advantages: (1) it appears to occur in conditions that are readily satisfied: compressive turbulence that is thermally isolated (no large-scale spatial gradients), with a core distribution of particles with a sharp initial cutoff in particle speed, above which particles can spatially diffuse; and (2) it yields spectra that are consistent with observations. Traditional stochastic acceleration has the disadvantage that it is unlikely to yield spectral shapes consistent with observations, and the spectra are dependent upon the plasma conditions and thus unlikely to be the same in different circumstances. The statistical approach of Schwadron et al. can yield the –5 spectrum and is consistent with the results of Fisk & Gloeckler when the assumed distribution functions for individual events and the averaging technique are taken to be compatible with the assumptions and averaging in Fisk & Gloeckler.

L. A. Fisk; G. Gloeckler; N. A. Schwadron

2010-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "rfp solar wind" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


301

The development and application practice of wind–solar energy hybrid generation systems in China  

Science Journals Connector (OSTI)

China is the largest developing country in the world. At present, more and more energy demand gives immense pressure to Chinese government. The inappropriate energy structure must be improved by Chinese government in order to achieve the sustainable development of economy and society. Development and application of renewable energy, such as wind energy, solar energy, biomass energy, etc., have been regarded by the government and the local people in the past 10 years, and more and more actual examples have been established, which are supported by government and plants in China. It is well known that there are abundant wind and solar resources in China. This paper presents the distribution zone and development and application practice status in China. However, a common drawback is existing in the stand-alone wind energy and solar energy generating power system, which is the unpredictable output electric power, and the output power depends on the unpredictable weather and climatic changes. Fortunately, the wind–solar hybrid generation system can partially overcome the problems. The conventional structure and key technology of stand-alone wind–solar hybrid generating system, the current status and outlook of wind–solar hybrid energy system are presented in the paper, for example, the city road lighting system, distributed generation, photovoltaic (PV) water pumping for irrigation, etc. At the end, the policies and laws of China central government and local governments are described, and the development barriers and recommendations are introduced.

Li-qun Liu; Zhi-xin Wang

2009-01-01T23:59:59.000Z

302

First lunar wake passage of ARTEMIS: Discrimination of wake effects and solar wind fluctuations by 3D hybrid simulations  

E-Print Network [OSTI]

First lunar wake passage of ARTEMIS: Discrimination of wake effects and solar wind fluctuations of 3D hybrid simulations. As the solar wind magnetic field was highly dynamic during the passage wind variations or by the lunar wake; therefore, a dynamic real-time simulation of the flyby has been

California at Berkeley, University of

303

SOLAR WIND ELECTRIC FIELDS IN THE ION CYCLOTRON FREQUENCY RANGE P. J. Kellogg,1  

E-Print Network [OSTI]

SOLAR WIND ELECTRIC FIELDS IN THE ION CYCLOTRON FREQUENCY RANGE P. J. Kellogg,1 S. D. Bale,2 F. S wind in the region near the ion cyclotron frequency of protons, larger than the force due to magnetic fluctuations. They provide sufficient velocity- space diffusion or heating to counteract conservation

California at Berkeley, University of

304

Propagation of the 12 May 1997 interplanetary coronal mass ejection in evolving solar wind  

E-Print Network [OSTI]

Propagation of the 12 May 1997 interplanetary coronal mass ejection in evolving solar wind wind was determined from the Science Applications International Corporation (SAIC) coronal model (Riley distance between the shock and the driving ejecta and in the inclination of the shock with respect

California at Berkeley, University of

305

Assessment of Wind/Solar Co-located Generation in Texas  

SciTech Connect (OSTI)

This paper evaluates the opportunity to load co-located wind and solar generation capacity onto a constrained transmission system while engendering only minimal losses. It quantifies the economic and energy opportunities and costs associated with pursuing this strategy in two Texas locations �¢���� one in west Texas and the other in south Texas. The study builds upon previous work published by the American Solar Energy Society (ASES) which illuminated the potential benefits of negative correlation of wind and solar generation in some locations by quantifying the economic and energy losses which would arise from deployment of solar generation in areas with existing wind generation and constrained transmission capacity. Clean Energy Associates (CEA) obtained and incorporated wind and solar resource data and the Electric Reliability Council of Texas (ERCOT)) load and price data into a model which evaluates varying levels of solar thermal, solar photovoltaic (PV) and wind capacity against an assumed transmission capacity limit at each of the two locations.

Steven M. Wiese

2009-07-20T23:59:59.000Z

306

RFP: Management and Operation of the National Renewable Energy Laboratory  

Office of Energy Efficiency and Renewable Energy (EERE)

Request for Proposals (RFP) Number DE-RP36-07GO97036: Management and Operation of the National Renewable Energy Laboratory.

307

DOE Issues Draft RFP for Idaho Cleanup Project Core | Department...  

Office of Environmental Management (EM)

on the Draft RFP is available at: https:www.emcbc.doe.govSEBICPCOREindex.php. DOE has requested that all comments, questions, suggested changes, and feedback should...

308

Final environmental impact report for the California Energy Commission Solar Program and Wind Program  

SciTech Connect (OSTI)

This Final Environmental Impact Report analyzes the California Energy Commission's Solar Program and Wind Program. The Solar Program is not expected to have any significant environmental effects. The assembly of solar systems will require the manufacture of certain component materials such as steel, aluminum, glass, copper, fiberglass insulation and polyurethane insulation. With the exception of copper and aluminum, all the materials can be manufactured in California. The air quality impacts associated with the production of these materials are insignificant and, in most cases, are more than offset by reduced emissions from decreased electrical generation and natural gas consumption. There are no expected water quality impacts associated with the production of the materials. The Solar Program will also have socioeconomic effects. The purchase price of some new housing will increase as a result of installing solar systems. The Solar Program will have a positive effect on employment, increasing the number of jobs available in both the manufacturing and installation of solar systems. The Wind Program has a near-term goal of 500 megawatts of wind generated electricity on line in California by 1985. Potential sites for wind development from a wind resource standpoint, occur in the desert and mountains where strong, persistent winds occur. The siting of a specified number of wind turbines may pose potential environmental impacts, but these effects are mitigable. The most substantial concern is the need for scattered wind turbines over a given area. Construction impacts from turbine pad leveling, access roads and transmission corridors could be considerable. Conflicts with existing and future land use may also occur. Operational effects include minor changes in microclimate, bird collisions with the turbine blades, noise, increased off-road vehicle use, aesthetics and radio and television wave interference.

Not Available

1980-05-01T23:59:59.000Z

309

Ion escape from Mars as a function of solar wind conditions: A statistical study Hans Nilsson a,*, Ella Carlsson a  

E-Print Network [OSTI]

- mately the same bulk flow energy. We did not find any clear correlation between the solar EUV flux the effective obstacle to the solar wind flow, forming a mag- netic pile up region between the outer magneticIon escape from Mars as a function of solar wind conditions: A statistical study Hans Nilsson a

California at Berkeley, University of

310

Wind and solar power electric generation to see strong growth...  

U.S. Energy Information Administration (EIA) Indexed Site

Short-Term Energy Outlook says the increase in wind power will be due to the new wind turbines coming online thanks to the federal production tax credit that was recently...

311

The Western Wind and Solar Integration Study: The Effects of Wind and Solar PowerÂ…Induced Cycling on Wear-and-Tear Costs and Emissions (Fact Sheet), NREL (National Renewable Energy Laboratory)  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Wind and Solar Power- Wind and Solar Power- Induced Cycling on Wear-and-Tear Costs and Emissions Results From the Western Wind and Solar Integration Study Phase 2 The electric grid is a highly complex, interconnected machine. Changing one part of the grid can have consequences elsewhere. Adding variable renewable generation such as wind and solar power affects the operation of conventional power plants, and adding high penetrations can induce cycling of fossil-fueled generators. Cycling leads to wear-and-tear costs and changes in emissions. Phase 2 of the Western Wind and Solar Integration Study (WWSIS-2) was initiated to determine the wear-and-tear costs and emissions impacts of cycling and to simulate grid operations to investigate the detailed impact of wind and solar power on

312

What does it take to create a clean energy future for Washington? Solar, Wind, Hydro  

E-Print Network [OSTI]

Solar, Wind, Hydro A Complete Energy System Home and Commercial Generation Demand Response 10-10 m 10's leadership and economic advantages in clean energy. - The mission of the Clean Energy Institute is to accelerate the adoption of a clean energy future by advancing next generation solar energy and electrical

Hochberg, Michael

313

Deformation and evolution of solar-wind discontinuities through their interactions with the Earth's bow shock  

E-Print Network [OSTI]

1 Deformation and evolution of solar-wind discontinuities through their interactions with the Earth Research Institute, Austrian Academy of Sciences, Graz, Austria. (2) Center for Solar-Terrestrial Research, Alberta, Canada. (5) Institut für Geophysik und extraterrestrische Physik, Technische Universität

314

Real-time solar wind prediction based on SDO/AIA coronal hole data  

E-Print Network [OSTI]

We present an empirical model based on the visible area covered by coronal holes close to the central meridian in order to predict the solar wind speed at 1 AU with a lead time up to four days in advance with a 1hr time resolution. Linear prediction functions are used to relate coronal hole areas to solar wind speed. The function parameters are automatically adapted by using the information from the previous 3 Carrington Rotations. Thus the algorithm automatically reacts on the changes of the solar wind speed during different phases of the solar cycle. The adaptive algorithm has been applied to and tested on SDO/AIA-193A observations and ACE measurements during the years 2011-2013, covering 41 Carrington Rotations. The solar wind speed arrival time is delayed and needs on average 4.02 +/- 0.5 days to reach Earth. The algorithm produces good predictions for the 156 solar wind high speed streams peak amplitudes with correlation coefficients of cc~0.60. For 80% of the peaks, the predicted arrival matches within ...

Rotter, T; Temmer, M; Vrsnak, B

2015-01-01T23:59:59.000Z

315

Ion Charge States in the Fast Solar Wind: New Data Analysis and Theoretical Refinements  

E-Print Network [OSTI]

We present a further investigation into the increased ionization observed in element charge states in the fast solar wind compared to its coronal hole source regions. Once ions begin to be perpendicularly heated by ion cyclotron waves and execute large gyro-orbits, density gradients in the flow can excite lower hybrid waves that then damp by heating electrons in the parallel direction. We give further analysis of charge state data from polar coronal holes at solar minimum and maximum, and also from equatorial coronal holes. We also consider further the damping of lower hybrid waves by ions and the effect of non-Maxwellian electron distribution functions on the degree of increased ionization, both of which appear to be negligible for the solar wind case considered here. We also suggest that the density gradients required to heat electrons sufficiently to further ionize the solar wind can plausibly result from the turbulent cascade of MHD waves.

J. Martin Laming; Susan T. Lepri

2007-02-05T23:59:59.000Z

316

Ion Charge States in the Fast Solar Wind: New Data Analysis and Theoretical Refinements  

E-Print Network [OSTI]

We present a further investigation into the increased ionization observed in element charge states in the fast solar wind compared to its coronal hole source regions. Once ions begin to be perpendicularly heated by ion cyclotron waves and execute large gyro-orbits, density gradients in the flow can excite lower hybrid waves that then damp by heating electrons in the parallel direction. We give further analysis of charge state data from polar coronal holes at solar minimum and maximum, and also from equatorial coronal holes. We also consider further the damping of lower hybrid waves by ions and the effect of non-Maxwellian electron distribution functions on the degree of increased ionization, both of which appear to be negligible for the solar wind case considered here. We also suggest that the density gradients required to heat electrons sufficiently to further ionize the solar wind can plausibly result from the turbulent cascade of MHD waves.

Laming, J Martin; 10.1086/513505

2009-01-01T23:59:59.000Z

317

Convective Instability Of The Solar Corona: Why The Solar Wind Blows  

E-Print Network [OSTI]

Chapman's (1957) conductive model of the solar corona is characterized by a temperature varying as r**(-2/7) with heliocentric distance r. The density distribution in this non-isothermal hydrostatic model has a minimum value at 123 RS, and increases with r above that altitude. It is shown that this hydrostatic model becomes convectively unstable above r = 35 RS, where the temperature lapse rate becomes superadiabatic. Beyond this radial distance heat conduction fails to be efficient enough to keep the temperature gradient smaller than the adiabatic lapse rate. We report the results obtained by Lemaire (1968) who showed that an additional mechanism is then required to transport the energy flux away from the Sun into interplanetary space. He pointed out that this additional mechanism is advection: i.e. the stationary hydrodynamic expansion of the corona. In other words the corona is unable to stay in hydrostatic equilibrium. The hydrodynamic solar wind expansion is thus a physical consequence of the too steep (...

Lemaire, Joseph

2012-01-01T23:59:59.000Z

318

DOE Issues Final RFP for Hanford Site Lab Services  

Broader source: Energy.gov [DOE]

Cincinnati -- The U.S. Department of Energy (DOE) today issued the final Request for Proposal (RFP), 100 percent set-aside for small businesses, for the operation and performance of analytical and testing services at the DOE Hanford 222-S Lab. A Draft RFP was previously released on February 28, 2014, requesting comments from industry.

319

Novel Control of PV Solar and Wind Farm Inverters as STATCOM for Increasing Connectivity of Distributed Generators.  

E-Print Network [OSTI]

??The integration of distributed generators (DGs) such as wind farms and PV solar farms in distribution networks is getting severely constrained due to problems of… (more)

AC, Mahendra

2013-01-01T23:59:59.000Z

320

Utilizing Load Response for Wind and Solar Integration and Power...  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Laboratory 1617 Cole Blvd., Golden, CO 80401 michael.milligan@nrel.gov Topics: Demand Response Power System Operations and Wind Energy Abstract Responsive load is still the...

Note: This page contains sample records for the topic "rfp solar wind" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


321

Solar and Wind Energy Resource Assessment Programme's Renewable...  

Open Energy Info (EERE)

& Screening Website: en.openei.orgappsSWERA Equivalent URI: cleanenergysolutions.orgcontentsolar-and-wind-energy-resource-assess Language: English Policies: Deployment...

322

DOE RFP Seeks Projects for Improving Environmental Performance of  

Broader source: Energy.gov (indexed) [DOE]

DOE RFP Seeks Projects for Improving Environmental Performance of DOE RFP Seeks Projects for Improving Environmental Performance of Unconventional Natural Gas Technologies DOE RFP Seeks Projects for Improving Environmental Performance of Unconventional Natural Gas Technologies December 21, 2011 - 12:00pm Addthis Washington, DC - Research projects to study ways for improving the environmental performance of unconventional gas development are being sought by the National Energy Technology Laboratory (NETL), a facility of the U.S. Department of Energy's (DOE) Office of Fossil Energy. The research opportunity was released in a request for proposals (RFP) issued by NETL's contractor, the Research Partnership to Secure Energy for America (RPSEA), with a deadline of March 6, 2012. A second RFP, focusing on the needs of small oil and natural gas producers, was released

323

Optimal design and techno-economic analysis of a hybrid solar–wind power generation system  

Science Journals Connector (OSTI)

Solar energy and wind energy are the two most viable renewable energy resources in the world. Good compensation characters are usually found between solar energy and wind energy. This paper recommend an optimal design model for designing hybrid solar–wind systems employing battery banks for calculating the system optimum configurations and ensuring that the annualized cost of the systems is minimized while satisfying the custom required loss of power supply probability (LPSP). The five decision variables included in the optimization process are the PV module number, PV module slope angle, wind turbine number, wind turbine installation height and battery capacity. The proposed method has been applied to design a hybrid system to supply power for a telecommunication relay station along south-east coast of China. The research and project monitoring results of the hybrid project were reported, good complementary characteristics between the solar and wind energy were found, and the hybrid system turned out to be able to perform very well as expected throughout the year with the battery over-discharge situations seldom occurred.

Hongxing Yang; Zhou Wei; Lou Chengzhi

2009-01-01T23:59:59.000Z

324

UNEP/DTIE Solar and Wind Energy Resource Assessment (SWERA) Project  

Open Energy Info (EERE)

UNEP/DTIE Solar and Wind Energy Resource Assessment (SWERA) Project UNEP/DTIE Solar and Wind Energy Resource Assessment (SWERA) Project Document Dataset Summary Description (Abstract): This project will provide solar and wind resource data and geographic information assessment tools to public and private sector executives who are involved in energy market development. It will demonstrate the use of these instruments in investment and policy decision making and build local capacities for their continuous use. The project will enable private investors and public policy makers to assess the technical, economic and environmental potential for large-scale investments in technologies that enable the exploitation of two increasingly important sources of renewable energy. During this pilot project, tools for analysis and use of resource information will be developed, a global tx_metadatatool and review mechanism will be initiated, regional/national solar and wind resource maps generated and national assessment demonstrations performed. The overall goal is to promote the integration of wind and solar alternatives in national and regional energy planning and sector restructuring as well as related policy making. The project will enable informed decision making and enhance the ability of participating governments to attract increased investor interest in renewable energy. Thirteen countries will be directly involved in the pilot stage of the project. Global and regional maps will be available to all developing countries.

325

Validating a Time-Dependent Wave-Turbulence-Driven Model of the Solar Wind  

E-Print Network [OSTI]

Although the mechanisms responsible for heating the Sun's corona and accelerating the solar wind are still being actively investigated, it is largely accepted that photospheric motions provide the energy source and that the magnetic field must play a key role in the process. \\citet{2010ApJ...708L.116V} presented a model for heating and accelerating the solar wind based on the turbulent dissipation of Alfv\\'en waves. We first use a time-dependent model of the solar wind to reproduce one of \\citeauthor{2010ApJ...708L.116V}'s solutions; then we extend its application to the case when the energy equation includes thermal conduction and radiation losses, and the upper chromosphere is part of the computational domain. Using this model, we explore parameter space and describe the characteristics of a fast-solar-wind solution. We discuss how this formulation may be applied to a 3D MHD model of the coron a and solar wind \\citep{2009ApJ...690..902L}.

Lionello, Roberto; Downs, Cooper; Linker, Jon A; Miki?, Zoran; Verdini, Andrea

2014-01-01T23:59:59.000Z

326

The Effect of Transition Region Heating on the Solar Wind from Coronal Holes  

Science Journals Connector (OSTI)

Using a 16 moment solar wind model extending from the chromosphere to 1 AU, we study how the solar wind is affected by direct deposition of energy in the transition region, in both radially expanding geometries and rapidly expanding coronal holes. Energy is required in the transition region to lift the plasma up to the corona, where additional coronal heating takes place. The amount of energy deposited determines the transition region pressure and the number of particles reaching the corona and, hence, how the solar wind energy flux is divided between gravitational potential and kinetic energy. We find that when only protons are heated perpendicularly to the magnetic field in a rapidly expanding coronal hole, the protons quickly become collisionless and therefore conduct very little energy into the transition region, leading to a wind much faster than what is observed. Only by additional deposition of energy in the transition region can a reasonable mass flux and flow speed at 1 AU be obtained. Radiative loss in the transition region is negligible in these low-mass flux solutions. In a radially expanding geometry the same form of coronal heating results in a downward heat flux to the transition region substantially larger than what is needed to heat the upwelling plasma, resulting in a higher transition region pressure, a slow, massive solar wind, and radiative loss playing a dominant role in the transition region energy budget. No additional energy input is needed in the transition region in this case. In the coronal hole geometry the solar wind response to transition region heating is highly nonlinear, and even a tiny input of energy can have a very large influence on the asymptotic properties of the wind. By contrast, the radially expanding wind is quite insensitive to additional deposition of energy in the transition region.

Øystein Lie-Svendsen; Viggo H. Hansteen; Egil Leer; Thomas E. Holzer

2002-01-01T23:59:59.000Z

327

The Origin of Non-Maxwellian Solar Wind Electron Velocity Distribution Function: Connection to Nanoflares in the Solar Corona  

E-Print Network [OSTI]

The formation of the observed core-halo feature in the solar wind electron velocity distribution function is a long-time puzzle. In this letter based on the current knowledge of nanoflares we show that the nanoflare-accelerated electron beams are likely to trigger a strong electron two-stream instability that generates kinetic Alfv\\'en wave and whistler wave turbulence, as we demonstrated in a previous paper. We further show that the core-halo feature produced during the origin of kinetic turbulence is likely to originate in the inner corona and can be preserved as the solar wind escapes to space along open field lines. We formulate a set of equations to describe the heating processes observed in the simulation and show that the core-halo temperature ratio of the solar wind is insensitive to the initial conditions in the corona and is related to the core-halo density ratio of the solar wind and to the quasi-saturation property of the two-stream instability at the time when the exponential decay ends. This rel...

Che, H

2014-01-01T23:59:59.000Z

328

Petascale Simulations of Inhomogeneous Alfven Turbulence in the Solar Wind  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

A snapshot of turbulent magnetic field lines (red) inside a coronal hole that expands from a small patch on the solar surface to 5 solar radii A snapshot of turbulent magnetic field lines (red) inside a coronal hole that expands from a small patch on the solar surface to 5 solar radii A snapshot of turbulent magnetic field lines (red) inside a coronal hole that expands from a small patch on the solar surface to 5 solar radii. Alfven waves (AW), launched by convective motions on the photosphere, propagate in the inhomogeneous Solar atmosphere producing primary reflected waves that interact non-linearly with the outward waves, driving a turbulent cascade. This cascade continues with secondary reflections in a very complex interplay between wave reflections and nonlinear interactions. Selected slices across the simulation domain show contours of plasma current, indicating the generation of small scale structures where the

329

Microsoft Word - NICCR RFP Nov 21.doc  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

National Institute for Climatic Change Research (NICCR) National Institute for Climatic Change Research (NICCR) Notice RFP-01 Summary: The U.S. Department of Energy (DOE) National Institute for Climatic Change Research (NICCR) hereby announces its interest in receiving research proposals. Proposed research is requested that would: (1) reduce scientific uncertainty about interactive effects of warming, changes in precipitation, increased CO 2 concentration, and/or increased tropospheric O 3 concentration on the structure and functioning of important U.S. terrestrial ecosystems; (2) evaluate and/or improve understanding and prediction of the effects of climatic change on the future geographic distribution of terrestrial ecosystems; (3) use measurements of contemporary exchanges of mass and energy between the atmosphere and terrestrial ecosystems to reduce

330

Non-Residential Solar and Wind Tax Credit (Personal) | Department of Energy  

Broader source: Energy.gov (indexed) [DOE]

Personal) Personal) Non-Residential Solar and Wind Tax Credit (Personal) < Back Eligibility Agricultural Commercial Fed. Government Industrial Institutional Local Government Nonprofit Schools State Government Tribal Government Savings Category Home Weatherization Commercial Weatherization Solar Lighting Windows, Doors, & Skylights Heating & Cooling Commercial Heating & Cooling Heating Buying & Making Electricity Swimming Pool Heaters Water Heating Wind Maximum Rebate 25,000 for any one building in the same year and 50,000 per business in total credits in any year Program Info Start Date 1/1/2006 State Arizona Program Type Personal Tax Credit Rebate Amount 10% of installed cost Provider Arizona Commerce Authority Arizona's tax credit for solar and wind installations in commercial and

331

The Western Wind and Solar Integration Study Phase 2 (Fact Sheet), NREL (National Renewable Energy Laboratory)  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

of Energy Efficiency of Energy Efficiency and Renewable Energy, operated by the Alliance for Sustainable Energy, LLC. The Western Wind and Solar Integration Study Phase 2 An examination of how wind and solar power affect operations, costs, and emissions from fossil-fueled generators The electric grid is a highly complex, interconnected machine. Changing one part of the grid can have consequences elsewhere. Adding variable renewable generation such as wind and solar power affects the operation of the other types of power plants, and adding high penetrations can induce cycling of fossil-fueled generators. Cycling leads to wear-and-tear costs and changes in emissions, but do those increases in costs and emissions from cycling negate the overall benefits of integrating renewables?

332

Solar and Wind Energy Resource Assessment - Kenya Country Report | OpenEI  

Open Energy Info (EERE)

- Kenya Country Report - Kenya Country Report Dataset Summary Description (Abstract): The Kenya Country Report describes the energy situation in Kenys and identifies solar and wind energy opportunities. (Purpose): To influence investment decisions by promoting and supporting renewable energy by overcoming informational barriers in solar and wind energy financing. Source Daniel Theuri - SWERA National Team Date Released November 23rd, 2008 (6 years ago) Date Updated Unknown Keywords documentation Kenya renewable energy solar SWERA UNEP wind Data application/pdf icon Download Report (pdf, 9.3 MiB) Quality Metrics Level of Review Some Review Comment Temporal and Spatial Coverage Frequency Time Period 2008 License License Open Data Commons Public Domain Dedication and Licence (PDDL) Comment

333

Non-Residential Solar and Wind Tax Credit (Corporate) | Department of  

Broader source: Energy.gov (indexed) [DOE]

Corporate) Corporate) Non-Residential Solar and Wind Tax Credit (Corporate) < Back Eligibility Agricultural Commercial Fed. Government Industrial Institutional Local Government Nonprofit Schools State Government Tribal Government Savings Category Home Weatherization Commercial Weatherization Solar Lighting Windows, Doors, & Skylights Heating & Cooling Commercial Heating & Cooling Heating Buying & Making Electricity Swimming Pool Heaters Water Heating Wind Maximum Rebate $25,000 for any one building in the same year and $50,000 per business in total credits in any year Program Info Start Date 1/1/2006 State Arizona Program Type Corporate Tax Credit Rebate Amount 10% of installed cost Provider Arizona Commerce Authority Arizona's tax credit for solar and wind installations in commercial and

334

Fluidic: Grid-Scale Batteries for Wind and Solar | Department of Energy  

Broader source: Energy.gov (indexed) [DOE]

Fluidic: Grid-Scale Batteries for Wind and Solar Fluidic: Grid-Scale Batteries for Wind and Solar Fluidic: Grid-Scale Batteries for Wind and Solar February 27, 2013 - 5:42pm Addthis Andrew Gumbiner Contractor, Advanced Research Projects Agency-Energy. FLUIDIC: Metal Air Recharged from DOE ARPA-E on Vimeo. Our nation's modern electric grid is limited in its ability to store excess energy for on-demand power. As a result, electricity must be generated on a constant basis to perfectly match demand. Grid-scale storage technologies have the potential to shift this dynamic, revolutionizing how our grid uses and distributes energy. Reliable, high-performing storage technologies could provide a considerable amount of power on very short demand, lowering costs to utilities and consumers alike. These powerful technologies would enable renewable sources of energy -

335

Konus-Wind and Helicon-Coronas-F Observations of Solar Flares  

E-Print Network [OSTI]

Results of solar flare observations obtained in the Konus-Wind experiment from November, 1994 to December, 2013 and in the Helicon Coronas-F experiment during its operation from 2001 to 2005, are presented. For the periods indicated Konus-Wind detected in the trigger mode 834 solar flares, and Helicon-Coronas-F detected more than 300 solar flares. A description of the instruments and data processing techniques are given. As an example, the analysis of the spectral evolution of the flares SOL2012-11-08T02:19 (M 1.7) and SOL2002-03-10T01:34 (C5.1) is made with the Konus-Wind data and the flare SOL2003-10-26T06:11 (X1.2) is analyzed in the 2.223 MeV deuterium line with the Helicon-Coronas-F data.

Pal'shin, V D; Aptekar, R L; Golenetskii, S V; Kokomov, A A; Svinkin, D S; Sokolova, Z Ya; Ulanov, M V; Frederiks, D D; Tsvetkova, A E

2014-01-01T23:59:59.000Z

336

INFLUENCE OF SOLAR WIND HEATING FORMULATIONS ON THE PROPERTIES OF SHOCKS IN THE CORONA  

SciTech Connect (OSTI)

One of the challenges in constructing global magnetohydrodynamic (MHD) models of the inner heliosphere for, e.g., space weather forecasting purposes, is to correctly capture the acceleration and expansion of the solar wind. In current models, various ad hoc heating prescriptions are introduced in order to obtain a realistic steady-state solar wind solution. In this work, we demonstrate, by performing MHD simulations of erupting coronal mass ejections (CMEs) on identical solar wind solutions employing different heating formulations, that the dynamics and properties of the CME-driven shocks are significantly altered depending on the applied heating prescription. Furthermore, we show how two popular heating formulations can be altered so as to yield shock properties consistent with theory and available coronal shock observations.

Pomoell, J.; Vainio, R., E-mail: jens.pomoell@helsinki.fi [Department of Physics, University of Helsinki (Finland)

2012-02-01T23:59:59.000Z

337

Nonlinear interaction of proton whistler with kinetic Alfvén wave to study solar wind turbulence  

SciTech Connect (OSTI)

This paper presents the nonlinear interaction between small but finite amplitude kinetic Alfvén wave (KAW) and proton whistler wave using two-fluid model in intermediate beta plasma, applicable to solar wind. The nonlinearity is introduced by modification in the background density. This change in density is attributed to the nonlinear ponderomotive force due to KAW. The solutions of the model equations, governing the nonlinear interaction (and its effect on the formation of localized structures), have been obtained using semi-analytical method in solar wind at 1AU. It is concluded that the KAW properties significantly affect the threshold field required for the filament formation and their critical size (for proton whistler). The magnetic and electric field power spectra have been obtained and their relevance with the recent observations of solar wind turbulence by Cluster spacecraft has been pointed out.

Goyal, R.; Sharma, R. P. [Centre for Energy Studies, Indian Institute of Technology, Delhi-110016 (India)] [Centre for Energy Studies, Indian Institute of Technology, Delhi-110016 (India); Goldstein, M. L. [NASA Goddard Space Flight Centre, Code 673, Greenbelt, Maryland 20771 (United States)] [NASA Goddard Space Flight Centre, Code 673, Greenbelt, Maryland 20771 (United States); Dwivedi, N. K. [Austrian Academy of Sciences, Space Research Institute, Schmiedlstrasse 6, 8042 Graz (Austria)] [Austrian Academy of Sciences, Space Research Institute, Schmiedlstrasse 6, 8042 Graz (Austria)

2013-12-15T23:59:59.000Z

338

Anomalous Viscosity, Resistivity, and Thermal Diffusivity of the Solar Wind Plasma  

E-Print Network [OSTI]

In this paper we have estimated typical anomalous viscosity, resistivity, and thermal difffusivity of the solar wind plasma. Since the solar wind is collsionless plasma, we have assumed that the dissipation in the solar wind occurs at proton gyro radius through wave-particle interactions. Using this dissipation length-scale and the dissipation rates calculated using MHD turbulence phenomenology [{\\it Verma et al.}, 1995a], we estimate the viscosity and proton thermal diffusivity. The resistivity and electron's thermal diffusivity have also been estimated. We find that all our transport quantities are several orders of magnitude higher than those calculated earlier using classical transport theories of {\\it Braginskii}. In this paper we have also estimated the eddy turbulent viscosity.

Mahendra K. Verma

1995-09-05T23:59:59.000Z

339

If I generate 20 percent of my national electricity from wind and solar -  

Open Energy Info (EERE)

If I generate 20 percent of my national electricity from wind and solar - If I generate 20 percent of my national electricity from wind and solar - what does it do to my GDP and Trade Balance ? Home > Groups > DOE Wind Vision Community I think that the economics of fossil fuesl are well understood. Some gets to find the fuel and sell it. The fuel and all associated activities factor into the economic equation of the nation and the wrold. What is the economics of generating 20 percent of my total capacity from say wind? And all of it replaces coal powered electricty ? What happended to GDP ? Is the economy a net gain or net loss ? The value of the electricity came into the system, but no coal is bought or sold. Submitted by Jamespr on 6 May, 2013 - 17:46 0 answers Groups Menu You must login in order to post into this group.

340

Permutation Entropy and Statistical Complexity Analysis of Turbulence in Laboratory Plasmas and the Solar Wind  

E-Print Network [OSTI]

The Bandt-Pompe permutation entropy and the Jensen-Shannon statistical complexity are used to analyze fluctuating time series of three different plasmas: the magnetohydrodynamic (MHD) turbulence in the plasma wind tunnel of the Swarthmore Spheromak Experiment (SSX), drift-wave turbulence of ion saturation current fluctuations in the edge of the Large Plasma Device (LAPD) and fully-developed turbulent magnetic fluctuations of the solar wind taken from the WIND spacecraft. The entropy and complexity values are presented as coordinates on the CH plane for comparison among the different plasma environments and other fluctuation models. The solar wind is found to have the highest permutation entropy and lowest statistical complexity of the three data sets analyzed. Both laboratory data sets have larger values of statistical complexity, suggesting these systems have fewer degrees of freedom in their fluctuations, with SSX magnetic fluctuations having slightly less complexity than the LAPD edge fluctuations. The CH ...

Weck, Peter J; Brown, Michael R; Wicks, Robert T

2014-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "rfp solar wind" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


341

On the exergetic capacity factor of a windsolar power generation system  

Science Journals Connector (OSTI)

In the recent years, exergy analysis has become a very important tool in the evaluation of systems' efficiency. It aims on minimizing the energy related-system losses and therefore maximizing energy savings and helps society substantially to move towards sustainable development and cleaner production. In this paper, a detailed exergetic analysis aiming to identify the overall Exergetic Capacity Factor (ExCF) for a windsolar power generation system was done. ExCF, as a new parameter, can be used for better classification and evaluation of renewable energy sources (RES). All the energy and exergy characteristics of wind and solar energy were examined in order to identify the variables that affect the power output of the hybrid system. A validated open source PV optimization tool was also included in the analysis, It was shown that parameters as e.g. air density or tracking losses, low irradiation losses play a crucial role in identifying the real and net wind and solar power output while planning new renewable energy projects and in fact do play a significant role on the windsolar plant's overall exergetic efficiency. In specific, it was found that air density varies from site to site influencing productivity. A difference of 6.2% on the productivity because of the air density was calculated. The wind and solar potential around a mountainous area were studied and presented based on field measurements and simulations. Since the number and the size of RES projects, over the last few years, are continually increasing, and new areas are required, the basic idea behind this research, was not only to introduce ExCF, as a new evaluation index for RES, but also to investigate the combined use of wind and solar energy under the same area and the benefits coming out of this combination.

G. Xydis

2013-01-01T23:59:59.000Z

342

Solar and wind resource complementarity: Advancing options for renewable electricity integration in Ontario, Canada  

Science Journals Connector (OSTI)

In Ontario (Canada), the integration of renewable power is a priority policy goal. Since 2004, the circumstances under which the integration of renewable power is evaluated have changed due to successive changes in price as well as concerns that its over-production may add to grid congestion. This research investigates the value of increasing complementarity (both proximate and geographically dispersed) of wind and solar resources as a means by which electricity planners and researchers might advance electricity sustainability in Ontario. More specifically, this paper asks the following questions: 1) Does the combination of solar and wind resources in selected locations in Ontario serve to ‘smooth out’ power production, i.e., decrease instances of both high and low values, as compared to either resource producing individually? 2) Can this ‘smoothness’ be further improved by dispersing these resources geographically amongst locations? and 3) Does increasing the number of locations with solar and wind resources further ‘smooth out’ power production? Three years (2003–2005) of synchronous, hourly measurements of solar irradiance and wind speeds from Environment Canada’s Canadian Weather Energy and Engineering Data Sets (CWEEDS) are used to derive dimensionless indices for four locations in Ontario (Toronto, Wiarton, Sault Ste. Marie and Ottawa). These indices are used to develop three transparent and accessible methods of analysis: (1) graphical representation; (2) percentile ranking; and (3) using a theoretical maximum as a proxy for capacity. The article concludes that the combination of solar and wind within locations and amongst two locations improves ‘smoothness’ in power production, as compared to when each resource is produced on its own; moreover, it is further improved once more than two resources and two locations are combined. However, there is neither further benefit, nor drawback, associated with the geographic dispersion of complementarity between solar in one location and wind in another, when compared to both resources in one location.

Christina E. Hoicka; Ian H. Rowlands

2011-01-01T23:59:59.000Z

343

Techno-economic evaluation of hybrid energy storage technologies for a solar–wind generation system  

Science Journals Connector (OSTI)

Huazhong University of Science and Technology is planning to establish a hybrid solar–wind generation dynamic simulation laboratory. Energy storage technologies will be vital to this system for load leveling, power quality control and stable output. In this paper, the technical feasibility of energy storage technologies for renewable intermittent sources like wind and solar generation is analyzed. Furthermore, the different combination modes of energy storage technologies are proposed. The involved energy storage technologies include superconducting magnetic energy storage systems (SMESs), flywheels (FWs), electrochemical super-capacitors (SCs) and redox flow batteries (RFBs). Based on that, the economic analysis of hybrid energy storage technologies is conducted.

L. Ren; Y. Tang; J. Shi; J. Dou; S. Zhou; T. Jin

2013-01-01T23:59:59.000Z

344

Strategic selection of suitable projects for hybrid solar-wind power generation systems  

Science Journals Connector (OSTI)

Because of the pressing need for maintaining a healthy environment with reasonable costs, China is moving toward the trend for generating electricity from renewable resources. Both solar energy and wind power have received a tremendous attention from private associations, political groups, and electric power companies to generate power on a large scale. A drawback is their unpredictable nature and dependence on weather. Fortunately, the problems can be partially tackled by using the strengths of one source to overcome the weakness of the other. Especially, a large fraction of the solar resource is available at times of peak electrical load. However, the complexity of using two different resources together makes the hybrid solar-wind generation systems more difficult to analyze. Accordingly, this paper first briefly introduces the solar-wind generation system and next develops its critical success criteria. Then, a fuzzy analytic hierarchy process associated with benefits, opportunities, costs and risks, is proposed to help select a suitable solar-wind power generation project.

Hsing Hung Chen; He-Yau Kang; Amy H.I. Lee

2010-01-01T23:59:59.000Z

345

ON THE ORIGIN OF THE SLOW SPEED SOLAR WIND: HELIUM ABUNDANCE VARIATIONS  

SciTech Connect (OSTI)

The first ionization potential (FIP) effect is the by now well-known enhancement in abundance over photospheric values of Fe and other elements with FIP below about 10 eV observed in the solar corona and slow speed solar wind. In our model, this fractionation is achieved by means of the ponderomotive force, arising as Alfven waves propagate through or reflect from steep density gradients in the solar chromosphere. This is also the region where low FIP elements are ionized, and high FIP elements are largely neutral leading to the fractionation as ions interact with the waves but neutrals do not. Helium, the element with the highest FIP and consequently the last to remain neutral as one moves upward, can be depleted in such models. Here, we investigate this depletion for varying loop lengths and magnetic field strengths. Variations in this depletion arise as the concentration of the ponderomotive force at the top of the chromosphere varies in response to Alfven wave frequency with respect to the resonant frequency of the overlying coronal loop, the magnetic field, and possibly also the loop length. We find that stronger depletions of He are obtained for weaker magnetic field, at frequencies close to or just above the loop resonance. These results may have relevance to observed variations of the slow wind solar He abundance with wind speed, with slower slow speed solar wind having a stronger depletion of He.

Rakowski, Cara E.; Laming, J. Martin [Space Science Division, Naval Research Laboratory Code 7674L, Washington, DC 20375 (United States)

2012-07-20T23:59:59.000Z

346

Sputtering of lunar regolith simulant by protons and singly and multicharged Ar ions at solar wind energies  

E-Print Network [OSTI]

for solar wind multi- charged ions having similar neutralization potential energies [1]. WeightedSputtering of lunar regolith simulant by protons and singly and multicharged Ar ions at solar wind energies F.W. Meyer a, , P.R. Harris a , C.N. Taylor a,1 , H.M. Meyer III b , A.F. Barghouty c , J.H. Adams

347

Western Wind and Solar Integration Study Phase 3 -- Frequency Response and Transient Stability (Report and Executive Summary)  

SciTech Connect (OSTI)

The primary objectives of Phase 3 of the Western Wind and Solar Integration Study (WWSIS-3) were to examine the large-scale transient stability and frequency response of the Western Interconnection with high wind and solar penetration, and to identify means to mitigate any adverse performance impacts via transmission reinforcements, storage, advanced control capabilities, or other alternatives.

Miller, N. W.; Shao, M.; Pajic, S.; D'Aquila, R.

2014-12-01T23:59:59.000Z

348

Correlated solar wind speed, density, and magnetic field changes at J. D. Richardson and C. Wang1  

E-Print Network [OSTI]

Correlated solar wind speed, density, and magnetic field changes at Voyager 2 J. D. Richardson and C. Wang1 Center for Space Research, Massachusetts Institute of Technology, Cambridge, Massachusetts December 2003. [1] The character of the solar wind plasma data observed by Voyager 2 recently changed

Richardson, John

349

PSNH - Energy Rewards RFP Program | Department of Energy  

Broader source: Energy.gov (indexed) [DOE]

PSNH - Energy Rewards RFP Program PSNH - Energy Rewards RFP Program PSNH - Energy Rewards RFP Program < Back Eligibility Commercial Industrial Savings Category Heating & Cooling Commercial Heating & Cooling Cooling Other Appliances & Electronics Commercial Lighting Lighting Program Info State New Hampshire Program Type Utility Grant Program Rebate Amount Varies Provider Public Service of New Hampshire Public Service of New Hampshire (PSNH), the state's largest electric utility, offers incentives on a competitive basis to commercial and industrial customers that achieve measurable energy savings through the installation of energy efficiency measures. Under the Energy Rewards Request for Proposal Program, PSNH accepts proposals for electrical energy efficiency projects to be implemented at the facilities of eligible

350

Wind energy as a solar?driven heat engine: A thermodynamic approach  

Science Journals Connector (OSTI)

An upper bound on annual average energy in the Earth’s winds is calculated via the formalism of finite?time thermodynamics. The Earth’s atmosphere is viewed as the working fluid of a heat engine where the heat input is solar radiation the heat rejection is to the surrounding universe and the work output is the energy in the Earth’s winds. The upper bound for the annual average power in the Earth’s winds is found to be 17 W/m2 which can be contrasted with the actual estimated annual average wind power of 7 W/m2. Our thermodynamic model also predicts the average extreme temperatures of the Earth’s atmosphere and can be applied to wind systems on other planets.

J. M. Gordon; Y. Zarmi

1989-01-01T23:59:59.000Z

351

Release of DRAFT RFP Headquarters Reading Room Instructions/Guidelines  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Release of DRAFT RFP Release of DRAFT RFP Headquarters Reading Room Instructions/Guidelines 1. Reading Room Points of Contact: 7/21 - 8/8, Mike Baehre, (202) 586-6575 8/9 - Close of Draft RFP, John Bernier, (202) 586-6416 Reading Room Availability: By Appointment - Reading Room will be available until DRAFT RFP Closes. Reading Room Hours: Morning, 9:00 a.m. - 11:30 a.m.; and Afternoon 1:00 p.m. - 3:30 p.m. Reading Room Will Accommodate: Up to 5-6 people 2. All personnel must: a. Sign-in b. Identify their Company or Firm they work for or are affiliated c. Indicate if they have a "Q" clearance 3. Personnel must stay in the Reading Room to view documents. The "A" corridor is inside a classified area and all visitors to the Reading Room must be escorted at all times.

352

RFP S. T. A. Kumar, D. J. Den Hartog...  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Classical confinement and outward convection of impurity ions in the MST RFP S. T. A. Kumar, D. J. Den Hartog, V. V. Mirnov, K. J. Caspary, R. M. Magee et al. Citation: Phys....

353

DERA Tribal Competition PRE-Open RFP Webinar  

Broader source: Energy.gov [DOE]

In fiscal year (FY) 2014, the National Clean Diesel Campaign will issue a standalone Diesel Emissions Reduction Act (DERA) Tribal Competition Request for Proposals (RFP) for a total of up to $1...

354

Quasilinear Evolution of Kinetic Alfven Wave Turbulence and Perpendicular Ion Heating in the Solar Wind  

E-Print Network [OSTI]

It is shown that the quasi-linear evolution of ion and electron distribution functions as result of wave-particle interaction of Kinetic Alfven Waves in the turbulent solar wind plasma leads to instability of long wavelength electromagnetic cyclotron waves and to an increase of the ion temperature perpendicular to the magnetic field.

Rudakov, L; Ganguli, G; Mithaiwala, M

2010-01-01T23:59:59.000Z

355

Electron and proton heating by solar wind turbulence B. Breech,1  

E-Print Network [OSTI]

Electron and proton heating by solar wind turbulence B. Breech,1 W. H. Matthaeus,2 S. R. Cranmer,3; published 16 September 2009. [1] Previous formulations of heating and transport associated with strong and protons. Electron heat conduction is included. Energy is supplied by turbulent heating that affects both

Oughton, Sean

356

A PARALLEL ADAPTIVE 3D MHD SCHEME FOR MODELING CORONAL AND SOLAR WIND PLASMA FLOWS  

E-Print Network [OSTI]

A PARALLEL ADAPTIVE 3D MHD SCHEME FOR MODELING CORONAL AND SOLAR WIND PLASMA FLOWS C. P. T. GROTH, Oceanic and Space Sciences, University of Michigan, Ann Arbor, MI 48109­2143, USA K. G. POWELL Department of Aerospace Engineering, University of Michigan, Ann Arbor, MI 48109­2118, USA Abstract. A parallel adaptive

De Zeeuw, Darren L.

357

New Battery Design Could Help Solar and Wind Power the Grid  

Broader source: Energy.gov [DOE]

Researchers from the U.S. Department of Energy’s (DOE) SLAC National Accelerator Laboratory and Stanford University have designed a low-cost, long-life “flow” battery that could enable solar and wind energy to become major suppliers to the electrical grid.

358

MAGNETIC RECONNECTION IN THE SOLAR WIND AT CURRENT SHEETS ASSOCIATED WITH EXTREMELY SMALL FIELD SHEAR ANGLES  

SciTech Connect (OSTI)

Using Wind 3 s plasma and magnetic field data, we have identified nine reconnection exhausts within a solar wind disturbance on 1998 October 18-20 driven by a moderately fast interplanetary coronal mass ejection (ICME). Three of the exhausts within the ICME were associated with current sheets having local field shear angles, {theta}, ranging from 4 Degree-Sign to 9 Degree-Sign , the smallest reported values of {theta} yet associated with reconnection exhausts in a space plasma. They were observed in plasma characterized by extremely low (0.02-0.04) plasma {beta}, and very high (281-383 km s{sup -1}) Alfven speed, V{sub A}. Low {beta} allows reconnection to occur at small {theta} and high V{sub A} leads to exhaust jets that are fast enough relative to the surrounding solar wind to be readily identified. Very small-{theta} current sheets are common in the solar wind at 1 AU, but typically are not associated with particularly low plasma {beta} or high V{sub A}. On the other hand, small-{theta} current sheets should be common in the lower solar corona, a plasma regime of extremely low {beta} and extremely high V{sub A}. Our observations lend credence to models that predict that reconnection at small-{theta} current sheets is primarily responsible for coronal heating.

Gosling, J. T. [Laboratory for Atmospheric and Space Physics, University of Colorado, 3665 Discovery Drive, Boulder, CO 80303 (United States); Phan, T. D., E-mail: jack.gosling@lasp.colorado.edu [Space Sciences Laboratory, University of California, Berkeley, CA 94720 (United States)

2013-02-01T23:59:59.000Z

359

The Global Solar and Wind Atlas: a unique Global Spatial Data Infrastructure for all renewable energy  

E-Print Network [OSTI]

@masdar.ac.ae Nicolas Fichaux International Renewable Energy Agency - IRENA Abu Dhabi United Arab Emirates NFichaux in the field of solar and wind energy. The initiative will be expanded to encompass all renewable energies by 2015, and will be the largest information source on renewable energy potentials ever created. It has

Paris-Sud XI, Université de

360

Sharp boundaries of small-and middle-scale solar wind structures  

E-Print Network [OSTI]

Sharp boundaries of small- and middle-scale solar wind structures M. O. Riazantseva1 and G. N Institute for Astrophysics and Space Research, Massachusetts Institute of Technology, Cambridge, Massachusetts, USA P. E. Eiges Space Research Institute, Russian Academy of Sciences, Moscow, Russia Received 7

Richardson, John

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to obtain the most current and comprehensive results.


361

Summary: An Approximately 1.3-Year Periodicity in ap and IMP 8 Solar Wind Observations  

E-Print Network [OSTI]

Summary: An Approximately 1.3-Year Periodicity in ap and IMP 8 Solar K Wind Observations . I. Paularena and J. D. Richardson A A Center for Space Research, Massachusetts Institute of Technology, MD C G. S. Gordon, Jr. and A. J. Lazarus enter for Space Research, Massachusetts Institute

Richardson, John

362

Slowdown of the Solar Wind in the Outer Heliosphere and the Interstellar Neutral Hydrogen Density  

E-Print Network [OSTI]

1 Slowdown of the Solar Wind in the Outer Heliosphere and the Interstellar Neutral Hydrogen Density C. Wang and J. D. Richardson Center for Space Research, Massachusetts Institute of Technology, Cambridge, Massachusetts J. T. Gosling Los Alamos National Laboratory, Los Alamos, New Mexico Abstract

Richardson, John

363

Coincident 1.3-year periodicities in the ap geomagnetic index and the solar wind  

E-Print Network [OSTI]

Coincident 1.3-year periodicities in the ap geomagnetic index and the solar wind K. I. Paularena Center for Space Research, Massachusetts Institute of Technology, Cambridge, Massachusetts A. Szabo. Richardson Center for Space Research, Massachusetts Institute of Technology, Cambridge, Massachusetts

Richardson, John

364

Impacts of Wind and Solar on Fossil-Fueled Generators: Preprint  

SciTech Connect (OSTI)

High penetrations of wind and solar power will impact the operations of the remaining generators on the power system. Regional integration studies have shown that wind and solar may cause fossil-fueled generators to cycle on and off and ramp down to part load more frequently and potentially more rapidly. Increased cycling, deeper load following, and rapid ramping may result in wear-and-tear impacts on fossil-fueled generators that lead to increased capital and maintenance costs, increased equivalent forced outage rates, and degraded performance over time. Heat rates and emissions from fossil-fueled generators may be higher during cycling and ramping than during steady-state operation. Many wind and solar integration studies have not taken these increased cost and emissions impacts into account because data have not been available. This analysis considers the cost and emissions impacts of cycling and ramping of fossil-fueled generation to refine assessments of wind and solar impacts on the power system.

Lew, D.; Brinkman, G.; Kumar, N.; Besuner, P.; Agan, D.; Lefton, S.

2012-08-01T23:59:59.000Z

365

What Are the Relative Roles of Heating and Cooling in Generating Solar Wind Temperature Anisotropies?  

E-Print Network [OSTI]

a combination of mechanisms of anisotropic heating (e.g., cyclotron-resonant heating and dissipation of kineticWhat Are the Relative Roles of Heating and Cooling in Generating Solar Wind Temperature, anisotropy-driven instabilities such as the cyclotron, mirror, and firehose instabilities limit the allowable

California at Berkeley, University of

366

Observations of polar patches generated by solar wind Alfve n wave coupling to the dayside magnetosphere  

E-Print Network [OSTI]

Observations of polar patches generated by solar wind AlfveÃ? n wave coupling to the dayside, Canada 2 Department of Physics and Astronomy, University of Western Ontario, London, Ont. N6A 5B9, Canada, Canada 4 The Johns Hopkins University Applied Physics Laboratory, Laurel, MD 20723-6099, USA Received: 19

Paris-Sud XI, Université de

367

THE DYNAMIC QUIET SUN: CONTRIBUTION TO CORONAL HEATING ANF SOLAR WIND  

E-Print Network [OSTI]

THE DYNAMIC QUIET SUN: CONTRIBUTION TO CORONAL HEATING ANF SOLAR WIND Maria Madjarska Wednesday, September 19, 2012 #12;The dynamic Sun at all scales Wednesday, September 19, 2012 #12;The dynamic Sun at all scales Wednesday, September 19, 2012 #12;The dynamic Sun at all scales Wednesday, September 19

368

ULYSSES SCIENTIFIC RESULTS: FALL 1997 SOLAR WIND (SWOOPS: J. Gosling)  

E-Print Network [OSTI]

of a certain mass, corresponding to the beta meteoroids, being missing. HALE-BOPP PLASMA TAIL (IDS: J. Brandt disconnection was observed on may 7-8, 1997. According to corresponding WIND data, Hale-Bopp was near, however, to identify an optical counterpart to the source because of obscuration by dust and gas

Christian, Eric

369

Evaluation of distributed building thermal energy storage in conjunction with wind and solar electric power generation  

Science Journals Connector (OSTI)

Abstract Energy storage is often seen as necessary for the electric utility systems with large amounts of solar or wind power generation to compensate for the inability to schedule these facilities to match power demand. This study looks at the potential to use building thermal energy storage as a load shifting technology rather than traditional electric energy storage. Analyses are conducted using hourly electric load, temperature, wind speed, and solar radiation data for a 5-state central U.S. region in conjunction with simple computer simulations and economic models to evaluate the economic benefit of distributed building thermal energy storage (TES). The value of the TES is investigated as wind and solar power generation penetration increases. In addition, building side and smart grid enabled utility side storage management strategies are explored and compared. For a relative point of comparison, batteries are simulated and compared to TES. It is found that cooling TES value remains approximately constant as wind penetration increases, but generally decreases with increasing solar penetration. It is also clearly shown that the storage management strategy is vitally important to the economic value of TES; utility side operating methods perform with at least 75% greater value as compared to building side management strategies. In addition, TES compares fairly well against batteries, obtaining nearly 90% of the battery value in the base case; this result is significant considering TES can only impact building thermal loads, whereas batteries can impact any electrical load. Surprisingly, the value of energy storage does not increase substantially with increased wind and solar penetration and in some cases it decreases. This result is true for both TES and batteries and suggests that the tie between load shifting energy storage and renewable electric power generation may not be nearly as strong as typically thought.

Byron W. Jones; Robert Powell

2015-01-01T23:59:59.000Z

370

The Role of Turbulence in Coronal Heating and Solar Wind Expansion  

E-Print Network [OSTI]

Plasma in the Sun's hot corona expands into the heliosphere as a supersonic and highly magnetized solar wind. This paper provides an overview of our current understanding of how the corona is heated and how the solar wind is accelerated. Recent models of magnetohydrodynamic turbulence have progressed to the point of successfully predicting many observed properties of this complex, multi-scale system. However, it is not clear whether the heating in open-field regions comes mainly from the dissipation of turbulent fluctuations that are launched from the solar surface, or whether the chaotic "magnetic carpet" in the low corona energizes the system via magnetic reconnection. To help pin down the physics, we also review some key observational results from ultraviolet spectroscopy of the collisionless outer corona.

Cranmer, S R; Miralles, M P; Raymond, J C; Strachan, L; Tian, H; Woolsey, L N

2014-01-01T23:59:59.000Z

371

An anisotropic-Alfvenic-turbulence-based solar wind model with proton temperature anisotropy  

E-Print Network [OSTI]

How the solar wind is accelerated to its supersonic speed is intimately related to how it is heated. Mechanisms based on ion-cyclotron resonance have been successful in explaining a large number of observations, those concerning the significant ion temperature anisotropy above coronal holes in particular. However, they suffer from the inconsistency with turbulence theory which says that the turbulent cascade in a low-beta medium like the solar corona should proceed in the perpendicular rather than the parallel direction, meaning that there is little energy in the ion gyro-frequency range for ions to absorb via ion-cyclotron resonance. Recently a mechanism based on the interaction between the solar wind particles and the anisotropic turbulence has been proposed, where the perpendicular proton energy addition is via the stochastic heating (Chandran et al. 2011). We extend this promising mechanism by properly accounting for the effect of proton temperature anisotropy on the propagation of Alfven waves, for the r...

Li, Bo

2012-01-01T23:59:59.000Z

372

Solar wind energy and momentum from the emergence of new small?scale flux  

Science Journals Connector (OSTI)

Recent Hinode observations have shown the remarkably rapid reconfiguration of the Sun’s small?scale magnetic flux. On the size?scale of granules solar magnetic flux is reconfigured over only 10 minutes. On the larger scales of supergranules magnetic flux is continually and rapidly reconfigured over about a day. We discuss how the reconfiguration processes observed by Hinode TRACE and SOHO may be related. The emergence of new magnetic flux continually drives reconnection between smaller emerging loops and overlying closed or open fields. Ultimately the energy and momentum from this emerging flux is converted into kinetic energy to drive the solar wind and thermal conductive and radiative energy in closed loops. Thus we describe the relationship between emerging small?scale magnetic flux and the momentum and energy that drives the solar wind and heats the corona.

N. A. Schwadron

2007-01-01T23:59:59.000Z

373

Enhancing the biophysical properties of mRFP1 through incorporation of fluoroproline  

SciTech Connect (OSTI)

Graphical abstract: Enhancing the biophysical properties of mRFP1 through incorporation of (2S, 4R)-4-fluoroproline at proline residues after mutating non-permissive site Pro63 into Ala. -- Highlights: •We incorporate (4S)-FP into mRFP1 led to insoluble protein. •Whereas, incorporation of (4R)-FP resulted in soluble but lost its fluorescence. •mRFP1-P63A mutant accommodate (4R)-FP and gave soluble protein with fluorescence. •Moreover mRFP1-P63A[(4R)-FP] showed enhanced biophysical properties of protein. -- Abstract: Here we enhanced the stability and biophysical properties of mRFP1 through a combination of canonical and non-canonical amino acid mutagenesis. The global replacement of proline residue with (2S, 4R)-4-fluoroproline [(4R)-FP] into mRFP1 led to soluble protein but lost its fluorescence, whereas (2S, 4S)-4-fluoroproline [(4S)-FP] incorporation resulted in insoluble protein. The bioinformatics analysis revealed that (4R)-FP incorporation at Pro63 caused fluorescence loss due to the steric hindrance of fluorine atom of (4R)-FP with the chromophore. Therefore, Pro63 residue was mutated with the smallest amino acid Ala to maintain non coplanar conformation of the chromophore and helps to retain its fluorescence with (4R)-FP incorporation. The incorporation of (4R)-FP into mRFP1-P63A showed about 2–3-fold enhancement in thermal and chemical stability. The rate of maturation is also greatly accelerated over the presence of (4R)-FP into mRFP1-P63A. Our study showed that a successful enhancement in the biophysical property of mRFP1-P63A[(4R)-FP] using non-canonical amino acid mutagenesis after mutating non-permissive site Pro63 into Ala.

Deepankumar, Kanagavel; Nadarajan, Saravanan Prabhu; Ayyadurai, Niraikulam; Yun, Hyungdon, E-mail: hyungdon@ynu.ac.kr

2013-11-01T23:59:59.000Z

374

Occurrence of high-speed solar wind streams over the Grand Modern Maximum  

E-Print Network [OSTI]

In the declining phase of the solar cycle, when the new-polarity fields of the solar poles are strengthened by the transport of same-signed magnetic flux from lower latitudes, the polar coronal holes expand and form non-axisymmetric extensions toward the solar equator. These extensions enhance the occurrence of high-speed solar wind streams (HSS) and related co-rotating interaction regions in the low-latitude heliosphere, and cause moderate, recurrent geomagnetic activity in the near-Earth space. Here, using a novel definition of geomagnetic activity at high (polar cap) latitudes and the longest record of magnetic observations at a polar cap station, we calculate the annually averaged solar wind speeds as proxies for the effective annual occurrence of HSS over the whole Grand Modern Maximum (GMM) from 1920s onwards. We find that a period of high annual speeds (frequent occurrence of HSS) occurs in the declining phase of each solar cycle 16-23. For most cycles the HSS activity clearly maximizes during one year...

Mursula, Kalevi; Holappa, Lauri

2015-01-01T23:59:59.000Z

375

A data mining approach: Analyzing wind speed and insolation period data in Turkey for installations of wind and solar power plants  

Science Journals Connector (OSTI)

Wind and solar power plant installations have been recently increased rapidly with respect to the depletion of fossil-based fuels all over the world. Due to stochastic nature of meteorological conditions, wind and solar energies have a non-schedulable nature and they require several installation analyses to determine the location and the capacities of wind and solar power to be produced. This paper focuses on the similarity, feasibility and numerical analyses of 75 cities in Turkey based on the monthly average wind speed and insolation period data. The nearest and the farest neighbor algorithms are used as agglomerative hierarchical clustering methods with Euclidean, Manhattan and Minkowski distance metrics in the stage of making the similarity and feasibility analyses. The maximum cophenetic correlation coefficient is achieved by the nearest neighbor algorithm with the Minkowski distance metric in the similarity and feasibility analyses. On the other hand, graphical representations of the monthly average wind speed and insolation period data are utilized for making the numerical analysis. The highest annual average wind speed and insolation period are obtained as 3.88 m/s and 8.45 h/day, respectively. Overall, many inferences were achieved in acceptable and efficient limits for wind and solar energy.

Ilhami Colak; Seref Sagiroglu; Mehmet Demirtas; Mehmet Yesilbudak

2013-01-01T23:59:59.000Z

376

The potential for arbitrage of wind and solar surplus power in Denmark  

Science Journals Connector (OSTI)

Abstract We have recently developed a simple yet powerful method to identify key properties of electricity systems with a high share of renewables. Here, our weather-driven methodology is described and applied to model the Danish power system with combined wind and solar energy gross shares of up to 100% of the total demand. We show that in a wind only scenario, surplus energy grows rapidly beyond gross shares of about 50%, while the potential for arbitrage of surplus renewable energy, i.e. demand-side management or high-efficiency storage, is very limited in this case. A scenario with a wind-solar energy mix of 80/20, on the other hand, both decreases the total amount of surplus and has a significantly higher potential for arbitrage of the remaining surplus. However, beyond gross shares of about 75%, only large-scale seasonal storage of, e.g. hydrogen, enables the use of Danish surplus wind and solar energy to cover the residual Danish electricity demand in both scenarios.

Gorm B. Andresen; Rolando A. Rodriguez; Sarah Becker; Martin Greiner

2014-01-01T23:59:59.000Z

377

Optimization of a stand?alone Solar PV?Wind?DG Hybrid System for Distributed Power Generation at Sagar Island  

Science Journals Connector (OSTI)

An estimation of a stand?alone solar PV and wind hybrid system for distributed power generation has been made based on the resources available at Sagar island a remote area distant to grid operation. Optimization and sensitivity analysis has been made to evaluate the feasibility and size of the power generation unit. A comparison of the different modes of hybrid system has been studied. It has been estimated that Solar PV?Wind?DG hybrid system provides lesser per unit electricity cost. Capital investment is observed to be lesser when the system run with Wind?DG compared to Solar PV?DG.

P. C. Roy; A. Majumder; N. Chakraborty

2010-01-01T23:59:59.000Z

378

Solar wind suprathermal electron Stahl widths across high-speed stream structures  

SciTech Connect (OSTI)

Suprathermal electrons (100-1500 eV) observed in the solar wind typically show a strahl distribution, that is, a beam directed away from the Sun along the magnetic field direction. The strahl width observed at 1 AU is highly variable, ranging from 10-70 degrees. The obsenred finite width of the strahl results from the competition between beam focusing as the interplanetary magnetic field strength drops with distance from the Sun, and pitch-angle scattering as the beam interacts with the solar wind plasma in transit from the sun. Here we examine strahl width, observed with ACE SWEPAM across high-speed stream structures to investigate variations in electron scattering as a function of local plasma characteristics. We find that narrow strahls (less than 20 degrees wide), indicating reduced scattering, are observed within high-speed streams. Narrow strahls are also observed in both very low temperature solar wind, in association with ICMEs. Case studies of high-speed streams typically show the strahl narrowing at the leading edge of the stream. In some cases, the strahl narrows at the reverse shock or pressure wave, in other cases at the stream interface. The narrowing can either occur discontinuously or gradually over a period of hours. Within the high-speed wind, the strahl remains narrow for a period of hours to days, and then gradually broadens. The strahl width is roughly constant at all energies across these structures. For some fraction of high-speed streams, counterstreaming is associated with passage of the corotating interaction region. In these cases, we find the widths of the two counterstreaming beams frequently differ by more than 40 degrees. This dramatic difference in strahl width contrasts with observations in the solar wind as a whole, in which counterstreaming strahls typically differ in width by less than 20 degrees.

Skoug, Ruth M [Los Alamos National Laboratory; Steinberg, John T [Los Alamos National Laboratory; Goodrich, Katherine A [Los Alamos National Laboratory; Anderson, Brett R [DARTMUTH UNIV.

2011-01-03T23:59:59.000Z

379

Chaotic mean wind in turbulent thermal convection and long-term correlations in solar activity  

E-Print Network [OSTI]

It is shown that correlation function of the mean wind velocity in a turbulent thermal convection (Rayleigh number $Ra \\sim 10^{11}$) exhibits exponential decay with a very long correlation time, while corresponding largest Lyapunov exponent is certainly positive. These results together with the reconstructed phase portrait indicate presence of a chaotic component in the examined mean wind. Telegraph approximation is also used to study relative contribution of the chaotic and stochastic components to the mean wind fluctuations and an equilibrium between these components has been studied. Since solar activity is based on the thermal convection processes, it is reasoned that the observed solar activity long-term correlations can be an imprint of the mean wind chaotic properties. In particular, correlation function of the daily sunspots number exhibits exponential decay with a very long correlation time and corresponding largest Lyapunov exponent is certainly positive, also relative contribution of the chaotic and stochastic components follows the same pattern as for the convection mean wind.

A. Bershadskii

2009-08-27T23:59:59.000Z

380

Long-term changes in solar wind elemental and isotopic ratios: A compairosn of two lunar ilmenites of different antiquities  

SciTech Connect (OSTI)

An ilmenite separate from lunar regolith breccia 79035, a sample presumed to have been exposed to solar wind more than 2 Ga ago, was analyzed for noble gas and nitrogen elemental and isotopic abundances by stepwise oxidation and pyrolysis. The gases appear to be distributed between two distinct reservoirs in the ilmenite, defined by release patterns and isotopic considerations. One of the reservoirs, near grain surfaces, yields elemental ratios that for the most part are solar while the other, sited at greater depths within grains, has severely fractionated elemental abundances and generally heavier isotopic ratios as well. Xenon provides an exception to the solar abundance pattern in the near-surface reservoir, being enhanced by about a factor of 2 relative to the expected value. A comparison of the 79035 separate with a previously analyzed ilmenite from soil 71501, which received its solar wind exposure much more recently, indicates that the two-fold xenon enhancement occurs in the fractionated reservoir as well as the solar one, and that it may therefore be attributable to a change in the solar wind elemental abundances. Other differences between the two ilmenites occur in helium and neon isotopic ratios and in He/Ar elemental ratios. Since mineralogical influences on retentivities of the gases in the two samples should be the same, and possible contributions of non-solar wind components to one ilmenite in preference to the other can generally be eliminated or accounted for, all of these differences may reflect changes in the solar wind over time.

Becker, R.H.; Pepin, R.O. (Univ. of Minneapolis, MN (USA))

1989-05-01T23:59:59.000Z

Note: This page contains sample records for the topic "rfp solar wind" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


381

Current status of research on optimum sizing of stand-alone hybrid solar–wind power generation systems  

Science Journals Connector (OSTI)

Solar and wind energy systems are omnipresent, freely available, environmental friendly, and they are considered as promising power generating sources due to their availability and topological advantages for local power generations. Hybrid solar–wind energy systems, uses two renewable energy sources, allow improving the system efficiency and power reliability and reduce the energy storage requirements for stand-alone applications. The hybrid solar–wind systems are becoming popular in remote area power generation applications due to advancements in renewable energy technologies and substantial rise in prices of petroleum products. This paper is to review the current state of the simulation, optimization and control technologies for the stand-alone hybrid solar–wind energy systems with battery storage. It is found that continued research and development effort in this area is still needed for improving the systems’ performance, establishing techniques for accurately predicting their output and reliably integrating them with other renewable or conventional power generation sources.

Wei Zhou; Chengzhi Lou; Zhongshi Li; Lin Lu; Hongxing Yang

2010-01-01T23:59:59.000Z

382

Analysis of Cycling Costs in Western Wind and Solar Integration Study  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Analysis of Cycling Costs in Analysis of Cycling Costs in Western Wind and Solar Integration Study Gary Jordan and Sundar Venkataraman GE Energy Schenectady, New York NREL Technical Monitor: Debra Lew Subcontract Report NREL/SR-5500-54864 June 2012 NREL is a national laboratory of the U.S. Department of Energy, Office of Energy Efficiency & Renewable Energy, operated by the Alliance for Sustainable Energy, LLC. National Renewable Energy Laboratory 15013 Denver West Parkway Golden, Colorado 80401 303-275-3000 * www.nrel.gov Contract No. DE-AC36-08GO28308 Analysis of Cycling Costs in Western Wind and Solar Integration Study Gary Jordan and Sundar Venkataraman GE Energy Schenectady, New York NREL Technical Monitor: Debra Lew Prepared under Subcontract No. KLFT-1-11349-01

383

SciTech Connect: "solar plasma wind"  

Office of Scientific and Technical Information (OSTI)

solar plasma wind" Find solar plasma wind" Find How should I search Scitech Connect ... Basic or Advanced? Basic Search Advanced × Advanced Search Options Full Text: Bibliographic Data: Creator / Author: Name Name ORCID Title: Subject: Identifier Numbers: Research Org.: Sponsoring Org.: Site: All Alaska Power Administration, Juneau, Alaska (United States) Albany Research Center (ARC), Albany, OR (United States) Albuquerque Complex - NNSA Albuquerque Operations Office, Albuquerque, NM (United States) Amarillo National Resource Center for Plutonium, Amarillo, TX (United States) Ames Laboratory (AMES), Ames, IA (United States) Argonne National Laboratory (ANL), Argonne, IL (United States) Argonne National Laboratory-Advanced Photon Source (United States) Atlanta Regional Office, Atlanta, GA (United States) Atmospheric Radiation Measurement (ARM)

384

An association between anisotropic plasma heating and instabilities in the solar wind  

E-Print Network [OSTI]

We present an analysis of the components of solar wind proton temperature perpendicular and parallel to the local magnetic field as a function of proximity to plasma instability thresholds. We find that $T_{\\perp p}$ is enhanced near the mirror instability threshold and $T_{\\parallel p}$ is enhanced near the firehose instability threshold. The increase in $T_{\\perp p}$ is consistent with cyclotron-resonant heating, but no similar explanation for hot plasma near the firehose limit is known. One possible explanation is that the firehose instability acts to convert bulk energy into thermal energy in the expanding solar wind, a result with significant implications for magnetized astrophysical plasma in general.

Kasper, J C; Bale, S D

2009-01-01T23:59:59.000Z

385

Response to Comment on “Air Emissions Due to Wind and Solar Power”  

Science Journals Connector (OSTI)

Both groups spread the ramping requirement equally over the running natural gas generators (five in the multiple turbine analysis in our paper). ... The authors quantified the interaction between state RPS and NOx constraints and found that states with substantial RPS could have significant upward pressure on NOx permit prices if the modeled gas turbines are representative of facilities used to mitigate wind and solar power variability. ...

Warren Katzenstein; Jay Apt*

2009-07-07T23:59:59.000Z

386

A simple mathematical description of an off-grid hybrid solar–wind power generating system  

Science Journals Connector (OSTI)

We give a detailed description of the energy balance equation for a stand-alone hybrid solar–wind power generating system. The dimensions of the power generator and the energy capacity of a buffer battery (used as an energy storage system) are chosen to suit a known consumer's profile. Future applications of the mathematical model developed and analogies with a similar hydrodynamic problem are discussed.

M Blasone; F Dell'Anno; R De Luca; G Torre

2013-01-01T23:59:59.000Z

387

THE GENESIS SOLAR WIND CONCENTRATOR TARGET: MASS FRACTIONATION CHARACTERISED BY NE ISOTOPES  

SciTech Connect (OSTI)

The concentrator on Genesis provides samples of increased fluences of solar wind ions for precise determination of the oxygen isotopic composition of the solar wind. The concentration process caused mass fractionation as function of the radial target position. They measured the fractionation using Ne released by UV laser ablation along two arms of the gold cross from the concentrator target to compare measured Ne with modeled Ne. The latter is based on simulations using actual conditions of the solar wind during Genesis operation. Measured Ne abundances and isotopic composition of both arms agree within uncertainties indicating a radial symmetric concentration process. Ne data reveal a maximum concentration factor of {approx} 30% at the target center and a target-wide fractionation of Ne isotopes of 3.8%/amu with monotonously decreasing {sup 20}Ne/{sup 22}Ne ratios towards the center. The experimentally determined data, in particular the isotopic fractionation, differ from the modeled data. They discuss potential reasons and propose future attempts to overcome these disagreements.

WIENS, ROGER C. [Los Alamos National Laboratory; OLINGER, C. [Los Alamos National Laboratory; HEBER, V.S. [Los Alamos National Laboratory; REISENFELD, D.B. [Los Alamos National Laboratory; BURNETT, D.S. [Los Alamos National Laboratory; ALLTON, J.H. [Los Alamos National Laboratory; BAUR, H. [Los Alamos National Laboratory; WIECHERT, U. [Los Alamos National Laboratory; WIELER, R. [Los Alamos National Laboratory

2007-01-02T23:59:59.000Z

388

SOLAR WIND IMPLANTATION MODEL FOR {sup 10}Be IN CALCIUM-ALUMINUM INCLUSIONS  

SciTech Connect (OSTI)

We propose a model for the incorporation of {sup 10}Be within calcium-aluminum inclusions (CAIs) in primitive carbonaceous meteorites. In this model, {sup 10}Be is produced by energetic particle reactions in the proto-solar atmosphere of a more active proto-Sun characterized by energetic particle fluxes higher than contemporary particle fluxes. This {sup 10}Be is incorporated into the solar wind that is then implanted into CAI precursor material. This production mechanism is operational in the contemporary solar system implanting {sup 10}Be in lunar materials. The contemporary production rate of {sup 10}Be at the surface of the Sun is {approx}0.1 {sup 10}Be cm{sup -2} s{sup -1}. Scaling up the contemporary {sup 10}Be production in the proto-Sun by a factor of 10{sup 5} would increase the production rate to 10{sup 410}Be cm{sup -2} s{sup -1}. Using this enhanced production value in conjunction with refractory mass inflow rates at 0.06 AU from the proto-Sun we model {sup 10}Be concentrations in CAI precursors. We calculate the content of solar-wind-implanted {sup 10}Be would have been of the order of 10{sup 1210}Be g{sup -1} in CAIs, consistent with initial{sup 10}Be content found from boron-beryllium isotopic systematics in CAIs.

Bricker, Glynn E. [Department of Mathematics, Statistics, and Physics, Purdue University North Central, Schwarz Bldg, Westville, IN 46391 (United States); Caffee, Marc W., E-mail: gbricker@pnc.ed, E-mail: mcaffee@purdue.ed [Department of Physics, Primelab: Purdue University, 525 Northwestern Avenue, West Lafayette, IN 47907 (United States)

2010-12-10T23:59:59.000Z

389

HELIUM VARIATION IN THE SOLAR WIND John D. Richardson1, Ian G. Richardson2, Justin C. Kasper1, Hilary V. Cane2, Nancy U.  

E-Print Network [OSTI]

, Boston, Massachusetts, USA ABSTRACT Solar wind parameters show strong solar cycle varia- tions in plasma1 HELIUM VARIATION IN THE SOLAR WIND John D. Richardson1, Ian G. Richardson2, Justin C. Kasper1, Hilary V. Cane2, Nancy U. Crooker3, and Alan J. Lazarus1 1Massachusetts Institute of Technology

Richardson, John

390

Earth Planets Space, 64, 7382, 2012 Solar wind electron interaction with the dayside lunar surface and crustal  

E-Print Network [OSTI]

comes from the energy gained during reflection from a moving obstacle; correctly characterizing electron atmosphere and no global magnetic field, seemingly should present a relatively sim- ple obstacle to the solarEarth Planets Space, 64, 73­82, 2012 Solar wind electron interaction with the dayside lunar surface

California at Berkeley, University of

391

Isotopic Composition of Solar Wind Calcium: First in Situ Measurement by CELIAS/MTOF on Board SOHO  

E-Print Network [OSTI]

We present first results on the Ca isotopic abundances derived from the high resolution Mass Time-of-Flight (MTOF) spectrometer of the charge, element, and isotope analysis system (CELIAS) experiment on board the Solar and Heliospheric Observatory (SOHO). We obtain isotopic ratios 40Ca/42Ca = (128+-47) and 40Ca/44Ca = (50+-8), consistent with terrestrial values. This is the first in situ determination of the solar wind calcium isotopic composition and is important for studies of stellar modeling and solar system formation since the present-day solar Ca isotopic abundances are unchanged from their original isotopic composition in the solar nebula.

R. Kallenbach; F. M. Ipavich; P. Bochsler; S. Hefti; P. Wurz; M. R. Aellig; A. B. Galvin; J. Geiss; F. Gliem; G. Gloeckler; H. Grunwaldt; M. Hilchenbach; D. Hovestadt; B. Klecker

1998-02-07T23:59:59.000Z

392

1.Bisi, M.M., Fallows, R.A., Breen, A.R., O'Neill, I.J. Interplanetary Scintillation Observations of Stream Interaction Regions in the Solar Wind. Solar Physics  

E-Print Network [OSTI]

Observations of Stream Interaction Regions in the Solar Wind. Solar Physics 261, 149-172 (2010). 2.Eastwood, J Journal 708, L95-L99 (2010). 3.Gosain, S., Schmieder, B. Estimation of width and inclination of a filament Physics online 6 (2010). 7.Lavraud, B., and 22 colleagues Statistics of counter-streaming solar wind

Christian, Eric

393

Analysis of off-grid hybrid wind turbine/solar PV water pumping systems  

Science Journals Connector (OSTI)

While many remote water pumping systems exist (e.g. mechanical windmills, solar photovoltaic, wind-electric, diesel powered), few combine both the wind and solar energy resources to possibly improve the reliability and the performance of the system. In this paper, off-grid wind turbine (WT) and solar photovoltaic (PV) array water pumping systems were analyzed individually and combined as a hybrid system. The objectives were to determine: (1) advantages or disadvantages of using a hybrid system over using a WT or a solar PV array alone; (2) if the WT or solar PV array interfered with the output of the other; and (3) which hybrid system was the most efficient for the location. The WT used in the analysis was rated at 900 W alternating current (AC). There were three different solar PV arrays analyzed, and they were rated at 320, 480, and 640 W direct current (DC). A rectifier converted the 3-phase variable voltage AC output from the WT to DC before combining it with the solar PV array DC output. The combined renewable energies powered a single helical pump. The independent variable used in the hybrid WT/PV array analysis was in units of W/m2. The peak pump efficiency of the hybrid systems at Bushland, TX occurred for the 900 W WT combined with the 640 W PV array. The peak pump efficiencies at a 75 m pumping depth of the hybrid systems were: 47% (WT/320 W PV array), 51% (WT/480 W PV array), and 55% (WT/640 W PV array). Interference occurred between the WT and the different PV arrays (likely due to voltage mismatch between WT and PV array), but the least interference occurred for the WT/320 W PV array. This hybrid system pumped 28% more water during the greatest water demand month than the WT and PV systems would have pumped individually. An additional controller with a buck/boost converter is discussed at end of paper for improvement of the hybrid WT/PV array water pumping system.

Brian D. Vick; Byron A. Neal

2012-01-01T23:59:59.000Z

394

POSSIBLE EVIDENCE OF ALFVEN-CYCLOTRON WAVES IN THE ANGLE DISTRIBUTION OF MAGNETIC HELICITY OF SOLAR WIND TURBULENCE  

SciTech Connect (OSTI)

The fluctuating magnetic helicity is considered an important parameter in diagnosing the characteristic modes of solar wind turbulence. Among them is the Alfven-cyclotron wave, which is probably responsible for the solar wind plasma heating, but has not yet been identified from the magnetic helicity of solar wind turbulence. Here, we present the possible signatures of Alfven-cyclotron waves in the distribution of magnetic helicity as a function of {theta}{sub VB}, which is the angle between the solar wind velocity and local mean magnetic field. We use magnetic field data from the STEREO spacecraft to calculate the {theta}{sub VB} distribution of the normalized reduced fluctuating magnetic helicity {sigma}{sub m}. We find a dominant negative {sigma}{sub m} for 1 s < p < 4 s (p is time period) and for {theta}{sub VB} < 30 deg. in the solar wind outward magnetic sector, and a dominant positive {sigma}{sub m} for 0.4 s < p < 4 s and for {theta}{sub VB}>150 deg. in the solar wind inward magnetic sector. These features of {sigma}{sub m} appearing around the Doppler-shifted ion-cyclotron frequencies may be consistent with the existence of Alfven-cyclotron waves among the outward propagating fluctuations. Moreover, right-handed polarized waves at larger propagation angles, which might be kinetic Alfven waves or whistler waves, have also been identified on the basis of the {sigma}{sub m} features in the angular range 40 deg. < {theta}{sub VB} < 140 deg. Our findings suggest that Alfven-cyclotron waves (together with other wave modes) play a prominent role in turbulence cascading and plasma heating of the solar wind.

He Jiansen; Tu Chuanyi; Yao Shuo; Tian Hui [Department of Geophysics, Peking University, Beijing 100871 (China); Marsch, Eckart, E-mail: jshept@gmail.com [Max-Planck-Institut fuer Sonnensystemforschung, 37191 Katlenburg-Lindau (Germany)

2011-04-20T23:59:59.000Z

395

On Collisionless Electron-Ion Temperature Equilibration in the Fast Solar Wind  

E-Print Network [OSTI]

We explore a mechanism, entirely new to the fast solar wind, of electron heating by lower hybrid waves to explain the shift to higher charge states observed in various elements in the fast wind at 1 A.U. relative to the original coronal hole plasma. This process is a variation on that previously discussed for two temperature accretion flows by Begelman & Chiueh. Lower hybrid waves are generated by gyrating minor ions (mainly alpha-particles) and become significant once strong ion cyclotron heating sets in beyond 1.5 R_sun. In this way the model avoids conflict with SUMER electron temperature diagnostic measurements between 1 and 1.5 R_sun. The principal requirement for such a process to work is the existence of density gradients in the fast solar wind, with scale length of similar order to the proton inertial length. Similar size structures have previously been inferred by other authors from radio scintillation observations and considerations of ion cyclotron wave generation by global resonant MHD waves.

J. Martin Laming

2003-12-15T23:59:59.000Z

396

STOCHASTIC HEATING, DIFFERENTIAL FLOW, AND THE ALPHA-TO-PROTON TEMPERATURE RATIO IN THE SOLAR WIND  

SciTech Connect (OSTI)

We extend previous theories of stochastic ion heating to account for the motion of ions along the magnetic field B . We derive an analytic expression for the temperature ratio T{sub i}/T{sub p} in the solar wind assuming that stochastic heating is the dominant ion heating mechanism, where T{sub i} is the perpendicular temperature of species i and T{sub p} is the perpendicular proton temperature. This expression describes how T{sub i}/T{sub p} depends upon U{sub i} and ?{sub ?p}, where U{sub i} is the average velocity along B of species i in the proton frame and ?{sub ?p} is the ratio of the parallel proton pressure to the magnetic pressure, which we take to be ?< 1. We compare our model with previously published measurements of alpha particles and protons from the Wind spacecraft. We find that stochastic heating offers a promising explanation for the dependence of T{sub ?}/T{sub p} on U{sub ?} and ?{sub ?p} when the fractional cross helicity and Alfvén ratio at the proton-gyroradius scale have values that are broadly consistent with solar-wind measurements. We also predict how the temperatures of other ion species depend on their drift speeds.

Chandran, B. D. G.; Verscharen, D.; Isenberg, P. A.; Bourouaine, S. [Space Science Center and Department of Physics, University of New Hampshire, Durham, NH 03824 (United States); Quataert, E. [Astronomy Department and Theoretical Astrophysics Center, 601 Campbell Hall, The University of California, Berkeley, CA 94720 (United States); Kasper, J. C., E-mail: benjamin.chandran@unh.edu, E-mail: s.bourouaine@unh.edu, E-mail: phil.isenberg@unh.edu, E-mail: daniel.verscharen@unh.edu, E-mail: eliot@astro.berkeley.edu, E-mail: jkasper@cfa.harvard.edu [Harvard-Smithsonian Center for Astrophysics, Cambridge, MA 02138 (United States)

2013-10-10T23:59:59.000Z

397

Carbon pay back period for solar and wind energy project installed in India: A critical review  

Science Journals Connector (OSTI)

All renewable energy systems make some contribution to climate change. This is due to fuel combusted for their construction and as back up energy during their operation. Accurate calculation of greenhouse gas emission per kilowatt hour of electricity is difficult but is an important part of policy making and planning. This study, an attempt has been made to analyze and review the development and potential of wind and solar energy in India. LCA has been carried out for the on shore wind turbine and poly crystalline PV module. Based on the past studies, life cycle inventory data has been collected for the investigation. Using that data, the detailed investigation has been made for the existing grid connected 1.65 MW wind turbine project in and around Udumalpet, Tamil Nadu and 25 kW Roof top solar PV Power plant at Sewa Bhawan, New Delhi. Carbon intensity, energy pay back period and carbon pay back period for the above system have been calculated and compared with each other.

C. Marimuthu; V. Kirubakaran

2013-01-01T23:59:59.000Z

398

Impact of dispersed solar and wind systems on electric distribution planning and operation  

SciTech Connect (OSTI)

Small-scale dispersed solar photovoltaic and wind generation (DSW) will affect the generation, transmission, and distribution systems of an electric utility. This study examines the technical and economic impacts of dispersing DSW devices within the distribution system. Dispersed intermittent generation is included. Effects of DSW devices on capital investments, reliability, operating and maintenance costs, protection requirements, and communication and control requirements are examined. A DSW operation model is developed to help determine the dependable capacity of fluctuating solar photovoltaic and wind generation as part of the distribution planning process. Specific case studies using distribution system data and renewable resource data for Southern California Edison Company and Consumers Power Company are analyzed to gain insights into the effects of interconnecting DSW devices. The DSW devices were found to offer some distribution investment savings, depending on their availability during peak loads. For a summer-peaking utility, for example, dispersing photovoltaic systems is more likely to defer distribution capital investments than dispersing wind systems. Dispersing storage devices to increase DSW's dependable capacity for distribution systems needs is not economically attractive. Substation placement of DSW and storage devices is found to be more cost effective than feeder or customer placement. Examination of the effects of DSW on distribution system operation showed that small customer-owned DSW devices are not likely to disrupt present time-current distribution protection coordination. Present maintenance work procedures, are adequate to ensure workmen's safety. Regulating voltages within appropriate limits will become more complex with intermittent generation along the distribution feeders.

Boardman, R.W.; Patton, R.; Curtice, D.H.

1981-02-01T23:59:59.000Z

399

Whistler mode waves and the electron heat flux in the solar wind: Cluster observations  

E-Print Network [OSTI]

The nature of the magnetic field fluctuations in the solar wind between the ion and electron scales is still under debate. Using the Cluster/STAFF instrument, we make a survey of the power spectral density and of the polarization of these fluctuations at frequencies $f\\in[1,400]$ Hz, during five years (2001-2005), when Cluster was in the free solar wind. In $\\sim 10\\%$ of the selected data, we observe narrow-band, right-handed, circularly polarized fluctuations, with wave vectors quasi-parallel to the mean magnetic field, superimposed on the spectrum of the permanent background turbulence. We interpret these coherent fluctuations as whistler mode waves. The life time of these waves varies between a few seconds and several hours. Here we present, for the first time, an analysis of long-lived whistler waves, i.e. lasting more than five minutes. We find several necessary (but not sufficient) conditions for the observation of whistler waves, mainly a low level of the background turbulence, a slow wind, a relative...

Lacombe, Catherine; Matteini, Lorenzo; Santolik, Ondrej; Cornilleau-Wehrlin, Nicole; Mangeney, Andre; de Conchy, Yvonne; Maksimovic, Milan

2014-01-01T23:59:59.000Z

400

Dependence of Solar-Wind Power Spectra on the Direction of the Local Mean Magnetic Field  

Science Journals Connector (OSTI)

Wavelet analysis can be used to measure the power spectrum of solar-wind fluctuations along a line in any direction (?, ) with respect to the local mean magnetic field B 0. This technique is applied to study solar-wind turbulence in high-speed streams in the ecliptic plane near solar minimum using magnetic field measurements with a cadence of eight vectors per second. The analysis of nine high-speed streams shows that the reduced spectrum of magnetic field fluctuations (trace power) is approximately azimuthally symmetric about B 0 in both the inertial range and dissipation range; in the inertial range the spectra are characterized by a power-law exponent that changes continuously from 1.6 ± 0.1 in the direction perpendicular to the mean field to 2.0 ± 0.1 in the direction parallel to the mean field. The large uncertainties suggest that the perpendicular power-law indices 3/2 and 5/3 are both consistent with the data. The results are similar to those found by Horbury et al. at high heliographic latitudes. Comparisons between solar-wind observations and the theories of strong incompressible MHD turbulence developed by Goldreich & Sridhar and Boldyrev are not rigorously justified because these theories only apply to turbulence with vanishing cross-helicity although the normalized cross-helicity of solar-wind turbulence is not negligible. Assuming these theories can be generalized in such a way that the three-dimensional wavevector spectra have similar functional forms when the cross-helicity is nonzero, then for the interval of Ulysses data analyzed by Horbury et al. the ratio of the spectra perpendicular and parallel to B 0 is more consistent with the Goldreich & Sridhar scaling P ?/P ? ? ?1/3 than with the Boldyrev scaling ?1/2. The analysis of high-speed streams in the ecliptic plane does not yield a reliable measurement of this scaling law. The transition from a turbulent MHD-scale energy cascade to a kinetic Alfvén wave (KAW) cascade occurs when k ?? i 1, which coincides with the spectral break. At slightly higher wavenumbers, in the dissipation range, there is a peak in the power ratio with P ?/P ? 1. The decay of this peak may be caused by the damping of KAWs, which is predicted to occur near k ?? i 4.

J. J. Podesta

2009-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "rfp solar wind" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


401

Khmer Solar | Open Energy Information  

Open Energy Info (EERE)

Khmer Solar Jump to: navigation, search Name: Khmer Solar Place: Phnom Penh, Cambodia Sector: Solar, Wind energy Product: Specializes in solar and wind systems for off-grid...

402

Statement of Interest in a New Project, in response to PPARC call of April 26th FHIRN: A next-generation radio network for exploring the 3-dimensional solar wind  

E-Print Network [OSTI]

-situ. The heliospheric white-light imagers to be carried on STEREO should extend the ability to estimate solar wind-generation radio network for exploring the 3-dimensional solar wind Future Heliospheric Imaging Radio Network The solar wind is a supersonically-expanding extension of the solar atmosphere into interplanetary space

403

NREL: Innovation Impact - Solar  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Solar Energy Menu Home Home Solar Solar Wind Wind Analysis Analysis Bioenergy Bioenergy Buildings Buildings Transportation Transportation Manufacturing Manufacturing Energy Systems...

404

The slow-mode nature of compressible wave power in solar wind turbulence  

E-Print Network [OSTI]

We use a large, statistical set of measurements from the Wind spacecraft at 1 AU, and supporting synthetic spacecraft data based on kinetic plasma theory, to show that the compressible component of inertial range solar wind turbulence is primarily in the kinetic slow mode. The zero-lag cross correlation C(delta n, delta B_parallel) between proton density fluctuations delta n and the field-aligned (compressible) component of the magnetic field delta B_parallel is negative and close to -1. The typical dependence of C(delta n,delta B_parallel) on the ion plasma beta_i is consistent with a spectrum of compressible wave energy that is almost entirely in the kinetic slow mode. This has important implications for both the nature of the density fluctuation spectrum and for the cascade of kinetic turbulence to short wavelengths, favoring evolution to the kinetic Alfven wave mode rather than the (fast) whistler mode.

Howes, G G; Klein, K G; Chen, C H K; Salem, C S; TenBarge, J M

2011-01-01T23:59:59.000Z

405

Radial evolution of intermittency of density fluctuations in the fast solar wind  

E-Print Network [OSTI]

We study the radial evolution of intermittency of density fluctuations in the fast solar wind. The study is performed analyzing the plasma density measurements provided by Helios 2 in the inner heliosphere between $0.3$ and $0.9$ AU. The analysis is carried out by means of a complete set of diagnostic tools, including the flatness factor at different time scales to estimate intermittency, the Kolmogorov-Smirnov test to estimate the degree of intermittency, and the Fourier transform to estimate the power spectral densities of these fluctuations. Density fluctuations within fast wind are rather intermittent and their level of intermittency, together with the amplitude of intermittent events, decreases with distance from the Sun, at odds with intermittency of both magnetic field and all the other plasma parameters. Furthermore, the intermittent events are strongly correlated, exhibiting temporal clustering. This indicates that the mechanism underlying their generation departs from a time-varying Poisson process....

Bruno, R; Primavera, L; Pietropaolo, E; D'Amicis, R; Sorriso-Valvo, L; Carbone, V; Malara, F; Veltri, P

2014-01-01T23:59:59.000Z

406

BBO-based small autonomous hybrid power system optimization incorporating wind speed and solar radiation forecasting  

Science Journals Connector (OSTI)

Abstract Rising carbon emission or carbon footprint imposes grave concern over the earth?s climatic condition, as it results in increasing average global temperature. Renewable energy sources seem to be the favorable solution in this regard. It can reduce the overall energy consumption rate globally. However, the renewable sources are intermittent in nature with very high initial installation price. Off-grid Small Autonomous Hybrid Power Systems (SAHPS) are good alternative for generating electricity locally in remote areas, where the transmission and distribution of electrical energy generated from conventional sources are otherwise complex, difficult and costly. In optimizing SAHPS, weather data over past several years are generally the main input, which include wind speed and solar radiation. The weather resources used in this optimization process have unsystematic variations based on the atmospheric and seasonal phenomenon and it also varies from year to year. While using past data in the analysis of SAHPS performance, it was assumed that the same pattern will be followed in the next year, which in reality is very unlikely to happen. In this paper, we use BBO optimization algorithm for SAHPS optimal component sizing by minimizing the cost of energy. We have also analysed the effect of using forecast weather data instead of past data on the SAHPS performance. ANNs, which are trained with back-propagation training algorithm, are used for wind speed and solar radiation forecasting. A case study was used for demonstrating the performance of BBO optimization algorithm along with forecasting effects. The simulation results clearly showed the advantages of utilizing wind speed and solar radiation forecasting in a SAHPS optimization problem.

R.A. Gupta; Rajesh Kumar; Ajay Kumar Bansal

2015-01-01T23:59:59.000Z

407

Imaging the Heliosphere Using Neutral Atoms from Solar Wind Energy Down to 15 eV  

Science Journals Connector (OSTI)

We study the spatial and temporal distribution of hydrogen energetic neutral atoms (ENAs) from the heliosheath observed with the IBEX-Lo sensor of the Interstellar Boundary EXplorer (IBEX) from solar wind energies down to the lowest available energy (15 eV). All available IBEX-Lo data from 2009 January until 2013 June were included. The sky regions imaged when the spacecraft was outside of Earth's magnetosphere and when the Earth was moving toward the direction of observation offer a sufficient signal-to-noise ratio even at very low energies. We find that the ENA ribbon—a 20° wide region of high ENA intensities—is most prominent at solar wind energies whereas it fades at lower energies. The maximum emission in the ribbon is located near the poles for 2 keV and closer to the ecliptic plane for energies below 1 keV. This shift is an evidence that the ENA ribbon originates from the solar wind. Below 0.1 keV, the ribbon can no longer be identified against the globally distributed ENA signal. The ENA measurements in the downwind direction are affected by magnetospheric contamination below 0.5 keV, but a region of very low ENA intensities can be identified from 0.1 keV to 2 keV. The energy spectra of heliospheric ENAs follow a uniform power law down to 0.1 keV. Below this energy, they seem to become flatter, which is consistent with predictions. Due to the subtraction of local background, the ENA intensities measured with IBEX agree with the upper limit derived from Ly? observations.

A. Galli; P. Wurz; S. A. Fuselier; D. J. McComas; M. Bzowski; J. M. Sokó?; M. A. Kubiak; E. Möbius

2014-01-01T23:59:59.000Z

408

Integrating Wind and Solar Energy in the U.S. Bulk Power System: Lessons from Regional Integration Studies  

SciTech Connect (OSTI)

Two recent studies sponsored by the U.S. Department of Energy (DOE) and the National Renewable Energy Laboratory (NREL) have examined the impacts of integrating high penetrations of wind and solar energy on the Eastern and Western electric grids. The Eastern Wind Integration and Transmission Study (EWITS), initiated in 2007, examined the impact on power system operations of reaching 20% to 30% wind energy penetration in the Eastern Interconnection. The Western Wind and Solar Integration Study (WWSIS) examined the operational implications of adding up to 35% wind and solar energy penetration to the Western Interconnect. Both studies examined the costs of integrating variable renewable energy generation into the grid and transmission and operational changes that might be necessary to address higher penetrations of wind or solar generation. This paper identifies key insights from these regional studies for integrating high penetrations of renewables in the U.S. electric grid. The studies share a number of key findings, although in some instances the results vary due to differences in grid operations and markets, the geographic location of the renewables, and the need for transmission.

Bird, L.; Lew, D.

2012-09-01T23:59:59.000Z

409

Ion Heating in Inhomogeneous Expanding Solar Wind Plasma: The Role of Parallel and Oblique Ion-Cyclotron Waves  

E-Print Network [OSTI]

Remote sensing observations of coronal holes show that heavy ions are hotter than protons and their temperature is anisotropic. In-situ observations of fast solar wind streams provide direct evidence for turbulent Alfv\\'en wave spectrum, left-hand polarized ion-cyclotron waves, and He$^{++}$ -- proton drift in the solar wind plasma, which can produce temperature anisotropies by resonant absorption and perpendicular heating of the ions. Furthermore, the solar wind is expected to be inhomogeneous on decreasing scales approaching the Sun. We study the heating of solar wind ions in inhomogeneous plasma with a turbulent spectrum of Alfv\\'enic fluctuations and drift with a 2.5D hybrid code. We include the expansion of the solar wind in an inhomogeneous plasma background, combined with the effects of a turbulent wave spectrum and of an initial ion drift. We study the influence of these effects on the perpendicular ion heating and cooling and on the spectrum of the magnetic fluctuations in the inhomogeneous backgroun...

Ozak, N; Viñas, A -F

2014-01-01T23:59:59.000Z

410

Nancy Rader, Executive Director California Wind Energy Association  

E-Print Network [OSTI]

Nancy Rader, Executive Director California Wind Energy Association Improving Methods for Estimating Fatality of Birds and Bats at Wind Energy Facilities California Wind Energy Association Public Webinar Wind Energy Development 2008 CEC Research "Roadmap" on Impact Assessment Methods 2008 CEC PIER RFP 2009

411

Rural Electrification Through Solar and Wind Hybrid System: A Self Sustained Grid Free Electric Power Source  

Science Journals Connector (OSTI)

In India, more than 200 million people live in rural areas without access to grid-connected power. A convenient & cost-effective solution would be hybrid power systems which can reduce dependency on grid supply, improve reliability. For a typical domestic load a solarwind hybrid system is designed with charge controller to charge a conventional battery. To optimize system efficiency, a simple algorithm is developed for system sizing. Total cost of unit is calculated using life cycle cost analysis and payback peri

Vadirajacharya; P.K. Katti

2012-01-01T23:59:59.000Z

412

NREL Confirms Large Potential for Grid Integration of Wind, Solar Power (Fact Sheet)  

SciTech Connect (OSTI)

To fully harvest the nation's bountiful wind and solar resources, it is critical to know how much electrical power from these renewable resources could be integrated reliably into the grid. To inform the discussion about the potential of such variable sources, the National Renewable Energy Laboratory (NREL) launched two key regional studies, examining the east and west sections of the U.S. power grid. The studies show that it is technically possible for U.S. power systems to integrate 20%-35% renewable electricity if infrastructure and operational improvements can be made.

Not Available

2011-10-01T23:59:59.000Z

413

Analysis of Cycling Costs in Western Wind and Solar Integration Study  

SciTech Connect (OSTI)

The Western Wind and Solar Integration Study (WWSIS) examined the impact of up to 30% penetration of variable renewable generation on the Western Electricity Coordinating Council system. Although start-up costs and higher operating costs because of part-load operation of thermal generators were included in the analysis, further investigation of additional costs associated with thermal unit cycling was deemed worthwhile. These additional cycling costs can be attributed to increases in capital as well as operations and maintenance costs because of wear and tear associated with increased unit cycling. This analysis examines the additional cycling costs of the thermal fleet by leveraging the results of WWSIS Phase 1 study.

Jordan, G.; Venkataraman, S.

2012-06-01T23:59:59.000Z

414

RIMS analysis of Ca and Cr in genesis solar wind collectors.  

SciTech Connect (OSTI)

RIMS depth profiles have been measured for Cr and Ca in Genesis solar wind collector made from Si and compared to such measurements for ion-implanted Si reference material. The presence of surface contamination has been shown to be a significant factor influencing the total Ca and Cr fluence measured in the Genesis collectors. A procedure to remove the contaminant signal from these depth profiles using the reference material implanted with a minor isotope demonstrated that 36% of the measured Ca fluence in our Genesis sample comes from terrestrial contamination.

Veryovkin, I. V.; Tripa, C. E.; Zinovev, A. V.; King, B. V.; Pellin, M. J.; Burnett, D. S.; Materials Science Division; Univ. of Newcastle; California Inst. of Tech.

2011-01-01T23:59:59.000Z

415

Electrostatic ion-acoustic-like instabilities in the solar wind with a backstreaming alpha particle beam  

SciTech Connect (OSTI)

Nonlinear electrostatic instabilities have been shown to occur frequently and under very different conditions in plasma with two ion beams such as the fast solar wind. These instabilities can be triggered when the phase velocity of electrostatic ion-acoustic waves propagating forward and backward relative to the interplanetary magnetic field overlaps due to the presence of a finite amplitude of circularly polarized wave. The instabilities can be triggered by waves supported by the same ion component, or by waves supported by different ion components. By assuming a beam of alpha particles moving backward relative to the external magnetic field, as observed in some events in the fast solar wind, it is shown that a very small negative drift velocity of the alpha particle beam relative to the core plasma--a few percent of the local Alfven velocity--can trigger a very rich variety of nonlinear electrostatic acousticlike instabilities. Their growth rates can be rather large and they persist for larger negative alpha particles drift velocities and temperatures.

Gomberoff, L. [Departamento de Fisica, Facultad de Ciencias, Universidad de Chile, Santiago (Chile); Gomberoff, K. [Department of Physics, Technion, Haifa 32000 (Israel); Deutsch, A. [Rafael, P.O. Box 2250, Haifa 31021 (Israel)

2010-06-15T23:59:59.000Z

416

Use of Solar and Wind as a Physical Hedge against Price Variability within a Generation Portfolio  

SciTech Connect (OSTI)

This study provides a framework to explore the potential use and incremental value of small- to large-scale penetration of solar and wind technologies as a physical hedge against the risk and uncertainty of electricity cost on multi-year to multi-decade timescales. Earlier studies characterizing the impacts of adding renewable energy (RE) to portfolios of electricity generators often used a levelized cost of energy or simplified net cash flow approach. In this study, we expand on previous work by demonstrating the use of an 8760 hourly production cost model (PLEXOS) to analyze the incremental impact of solar and wind penetration under a wide range of penetration scenarios for a region in the Western U.S. We do not attempt to 'optimize' the portfolio in any of these cases. Rather we consider different RE penetration scenarios, that might for example result from the implementation of a Renewable Portfolio Standard (RPS) to explore the dynamics, risk mitigation characteristics and incremental value that RE might add to the system. We also compare the use of RE to alternative mechanisms, such as the use of financial or physical supply contracts to mitigate risk and uncertainty, including consideration of their effectiveness and availability over a variety of timeframes.

Jenkin, T.; Diakov, V.; Drury, E.; Bush, B.; Denholm, P.; Milford, J.; Arent, D.; Margolis, R.; Byrne, R.

2013-08-01T23:59:59.000Z

417

A Model of Turbulence in Magnetized Plasmas: Implications for the Dissipation Range in the Solar Wind  

E-Print Network [OSTI]

This paper studies the turbulent cascade of magnetic energy in weakly collisional magnetized plasmas. A cascade model is presented, based on the assumptions of local nonlinear energy transfer in wavenumber space, critical balance between linear propagation and nonlinear interaction times, and the applicability of linear dissipation rates for the nonlinearly turbulent plasma. The model follows the nonlinear cascade of energy from the driving scale in the MHD regime, through the transition at the ion Larmor radius into the kinetic Alfven wave regime, in which the turbulence is dissipated by kinetic processes. The turbulent fluctuations remain at frequencies below the ion cyclotron frequency due to the strong anisotropy of the turbulent fluctuations, k_parallel cyclotron damping. The conditions under which the gyrokinetic cascade reaches the ion cyclotron frequency are established. Cascade model solutions imply that collisionless damping provides a natural explanation for the observed range of spectral indices in the dissipation range of the solar wind. The dissipation range spectrum is predicted to be an exponential fall off; the power-law behavior apparent in observations may be an artifact of limited instrumental sensitivity. The cascade model is motivated by a programme of gyrokinetic simulations of turbulence and particle heating in the solar wind.

Gregory G. Howes; Steven C. Cowley; William Dorland; Gregory W. Hammett; Eliot Quataert; Alexander A. Schekochihin

2007-07-20T23:59:59.000Z

418

Probing the Solar Wind Acceleration Region with the Sun--Grazing Comet C/2002 S2  

E-Print Network [OSTI]

Comet C/2002 S2, a member of the Kreutz family of Sungrazing comets, was discovered in white light images of the SOHO/LASCO coronagraph on 2002 September 18 and observed in \\hi\\, \\lya\\, emission by the SOHO/UVCS instrument at four different heights as it approached the Sun. The \\hi\\, \\lya\\, line profiles detected by UVCS are analyzed to determine the spectral parameters: line intensity, width and Doppler shift with respect to the coronal background. Two dimensional comet images of these parameters are reconstructed at the different heights. A novel aspect of the observations of this sungrazing comet data is that, whereas the emission from the most of the tail is blue--shifted, that along one edge of the tail is red--shifted. We attribute these shifts to a combination of solar wind speed and interaction with the magnetic field. In order to use the comet to probe the density, temperature and speed of the corona and solar wind through which it passes, as well as to determine the outgassing rate of the comet, we ...

Giordano, Silvio; Lamy, Philippe; Uzzo, Michael; Dobrzycka, Danuta

2014-01-01T23:59:59.000Z

419

Kinetic cascade beyond MHD of solar wind turbulence in two-dimensional hybrid simulations  

E-Print Network [OSTI]

The nature of solar wind turbulence in the dissipation range at scales much smaller than the large MHD scales remains under debate. Here a two-dimensional model based on the hybrid code abbreviated as A.I.K.E.F. is presented, which treats massive ions as particles obeying the kinetic Vlasov equation and massless electrons as a neutralizing fluid. Up to a certain wavenumber in the MHD regime, the numerical system is initialized by assuming a superposition of isotropic Alfv\\'en waves with amplitudes that follow the empirically confirmed spectral law of Kolmogorov. Then turbulence develops and energy cascades into the dispersive spectral range, where also dissipative effects occur. Under typical solar wind conditions, weak turbulence develops as a superposition of normal modes in the kinetic regime. Spectral analysis in the direction parallel to the background magnetic field reveals a cascade of left-handed Alfv\\'en/ion-cyclotron waves up to wave vectors where their resonant absorption sets in, as well as a cont...

Verscharen, Daniel; Motschmann, Uwe; Müller, Joachim

2012-01-01T23:59:59.000Z

420

Repetitive substorms caused by Alfvenic waves of the interplanetary magnetic field during high-speed solar wind streams  

E-Print Network [OSTI]

, but they may be locally generated from stream-stream interaction effects or amplified Alfve´n waves originating-speed solar wind streams D.-Y. Lee,1 L. R. Lyons,2 K. C. Kim,1 J.-H. Baek,3 K.-H. Kim,3 H.-J. Kim,1 J. Weygand wind streams, J. Geophys. Res., 111, A12214, doi:10.1029/2006JA011685. 1. Introduction [2] During

Lyons, Larry

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421

A current and future state of art development of hybrid energy system using wind and PV-solar: A review  

Science Journals Connector (OSTI)

The wind and solar energy are omnipresent, freely available, and environmental friendly. The wind energy systems may not be technically viable at all sites because of low wind speeds and being more unpredictable than solar energy. The combined utilization of these renewable energy sources are therefore becoming increasingly attractive and are being widely used as alternative of oil-produced energy. Economic aspects of these renewable energy technologies are sufficiently promising to include them for rising power generation capability in developing countries. A renewable hybrid energy system consists of two or more energy sources, a power conditioning equipment, a controller and an optional energy storage system. These hybrid energy systems are becoming popular in remote area power generation applications due to advancements in renewable energy technologies and substantial rise in prices of petroleum products. Research and development efforts in solar, wind, and other renewable energy technologies are required to continue for, improving their performance, establishing techniques for accurately predicting their output and reliably integrating them with other conventional generating sources. The aim of this paper is to review the current state of the design, operation and control requirement of the stand-alone PV solar–wind hybrid energy systems with conventional backup source i.e. diesel or grid. This Paper also highlights the future developments, which have the potential to increase the economic attractiveness of such systems and their acceptance by the user.

Pragya Nema; R.K. Nema; Saroj Rangnekar

2009-01-01T23:59:59.000Z

422

Markets to Facilitate Wind and Solar Energy Integration in the Bulk Power Supply: An IEA Task 25 Collaboration; Preprint  

SciTech Connect (OSTI)

Wind and solar power will give rise to challenges in electricity markets regarding flexibility, capacity adequacy, and the participation of wind and solar generators to markets. Large amounts of wind power will have impacts on bulk power system markets and electricity prices. If the markets respond to increased wind power by increasing investments in low-capital, high-cost or marginal-cost power, the average price may remain in the same range. However, experiences so far from Denmark, Germany, Spain, and Ireland are such that the average market prices have decreased because of wind power. This reduction may result in additional revenue insufficiency, which may be corrected with a capacity market, yet capacity markets are difficult to design. However, the flexibility attributes of the capacity also need to be considered. Markets facilitating wind and solar integration will include possibilities for trading close to delivery (either by shorter gate closure times or intraday markets). Time steps chosen for markets can enable more flexibility to be assessed. Experience from 5- and 10-minute markets has been encouraging.

Milligan, M.; Holttinen, H.; Soder, L.; Clark, C.; Pineda, I.

2012-09-01T23:59:59.000Z

423

Comment on "Air Emissions Due to Wind and Solar Power" and Supporting Information  

E-Print Network [OSTI]

Inc. , 2006 Minnesota Wind Integration Study, Volume I; Min-Parsons, B. Utility wind integration and operating impactthe 2005 New York Wind Integration Study (3), the 2006

Mills, Andrew D.

2011-01-01T23:59:59.000Z

424

A New Model for the Prediction of Dst on the Basis of the Solar Wind Space Sciences Lab., University of California, Berkeley  

E-Print Network [OSTI]

1 A New Model for the Prediction of Dst on the Basis of the Solar Wind M. Temerin Space Sciences Lab., University of California, Berkeley Xinlin Li Lab. for Atmospheric and Space Physics, University on solar wind data for the years 1995-1999 gives a good fit with a prediction efficiency of 88%, a linear

Li, Xinlin

425

GEOPHYSICAL RESEARCH LETTERS, VOL. 28, NO. 14, PAGES 2767-2770, JULY 15, 2001 The Solar Wind Helium Abundance: Variation with  

E-Print Network [OSTI]

GEOPHYSICAL RESEARCH LETTERS, VOL. 28, NO. 14, PAGES 2767-2770, JULY 15, 2001 The Solar Wind Helium Abundance: Variation with Wind Speed and the Solar Cycle Matthias R. Aellig and Alan J. Lazarus Center for Space Research, Massachusetts Institute of Technology, Cambridge, Massachusetts John T. Steinberg Los

Richardson, John

426

Solar Energy Alliance | Open Energy Information  

Open Energy Info (EERE)

Solar Energy Alliance Place: United Kingdom Sector: Solar, Wind energy Product: Grant approved installers of micro wind power and solar energy systems. Supply wind generators,...

427

Innovative Power?Augmentation?Guide?Vane Design of Wind?Solar Hybrid Renewable Energy Harvester for Urban High Rise Application  

Science Journals Connector (OSTI)

To generate greater quantities of energy from wind the most efficient solution would be by increasing the wind speed. Also due to the decreasing number of economic wind energy sites there are plans to place wind turbines closer to populated areas. To site wind turbines out from rural areas the current problems of wind turbines need to be resolved especially visual impact poor starting behaviour in low wind speeds noise and danger caused by blade failure. In this paper a patented wind?solar hybrid renewable energy harvester is introduced. It is a compact system that integrates and optimizes several green elements and can be built on the top (or between upper levels) of high rise buildings or structures. This system can be used in remote and urban areas particularly at locations where the wind speed is lower and more turbulent. It overcomes the inferior aspect on the low wind speed by guiding and increasing the speed of the high altitude free?stream wind through fixed or yaw?able power?augmentation?guide?vane (PAGV) before entering the wind turbine (straight?bladed vertical axis wind turbine VAWT in this project) at center portion. PAGV is a new and innovative design where its appearance or outer design can be blended into the building architecture without negative visual impact. From the studies it is shown that the wind speed increment in the PAGV can be produced according to the Bernoulli’s principle. Computational fluid dynamics (CFD) simulation is used to optimize the geometry of the PAGV and the simulation results demonstrated the technical possibility of this innovative concept. The PAGV replaces the free air?stream from wind by multiple channels of speed?increased and directional?controlled air?stream. With the PAGV this lift?type VAWT can be self?started and its size can be reduced for a given power output. The design is also safer since the VAWT is enclosed by the PAGV. By integrating the PAGV with the VAWT (the diameter and height of PAGV are 2 times larger than the VAWT’s) the predicted power generated (at free?stream wind speed ?=?3.5? m / s ) is 1.25 times higher than the VAWT that has the same size as the PAGV. This new wind energy generation configuration should generate interest in the international market even for regions with weaker winds. The correlation between CFD simulation and wind tunnel test will be carried out and reported elsewhere.

Chong Wen Tong; M. Z. Zainon; Poh Sin Chew; Soo Chun Kui; Wee Seng Keong; Pan Kok Chen

2010-01-01T23:59:59.000Z

428

Detecting the oldest geodynamo and attendant shielding from the solar wind: Implications for habitability  

E-Print Network [OSTI]

The onset and nature of the earliest geomagnetic field is important for understanding the evolution of the core, atmosphere and life on Earth. A record of the early geodynamo is preserved in ancient silicate crystals containing minute magnetic inclusions. These data indicate the presence of a geodynamo during the Paleoarchean, between 3.4 and 3.45 billion years ago. While the magnetic field sheltered Earth's atmosphere from erosion at this time, standoff of the solar wind was greatly reduced, and similar to that during modern extreme solar storms. These conditions suggest that intense radiation from the young Sun may have modified the atmosphere of the young Earth by promoting loss of volatiles, including water. Such effects would have been more pronounced if the field were absent or very weak prior to 3.45 billion years ago, as suggested by some models of lower mantle evolution. The frontier is thus trying to obtain geomagnetic field records that are >>3.45 billion-years-old, as well as constraining solar wi...

Tarduno, John A; Mamajek, Eric E

2015-01-01T23:59:59.000Z

429

Solar and Wind Energy Resource Assessment (SWERA) - Bangladesh | OpenEI  

Open Energy Info (EERE)

(SWERA) - Bangladesh (SWERA) - Bangladesh Dataset Summary Description Reduction of global greenhouse gas emission to arrest global warming requires minimizing the use of fossil fuels. To achieve this a large scale use of renewable energies must be made over the globe for production of electrical and thermal energy. Success of wind and solar energy projects require detailed and precise information on the resources. For most developing countries adequate information on the resources are not available.UNEP supported by GEF has started a program to assess solar and wind resources for a number of countries including Bangladesh, China, Brazil, Nepal and Sri Lanka in the initial program.World resources of oil, gas and coal are limited and there is a global concern about this but for Bangladesh the situation appears to be extremely unhappy as per capita reserve of fossil fuels is only 1/50th to 1/100th of world per capita. A close look at Bangladesh energy scenario is presented before going to an overview of the results of resource assessments for wind and solar energy under the SWERA Program carried out for Bangladesh withRERC as the local partner. Data and maps for Bangladesh are available in the SWERA website. Details of assessment techniques and results will be presented in the following sections together with the possible applications of the resources.A spin-off from the SWERA Project is development of manpower trained at home and abroad in WAsP techniques, RETScreen and HOMER analyses and the capability development for using GIS Toolkit.NREL, RISOE and DLR produced modeled maps and data sets for Bangladesh and NREL developed the GIS Toolkit. RERC measured and collected ground data and standardized the maps and data sets.Mr. Tom Hamlin of UNEP who has been the project manager for SWERA activities always extended his helping hands to RERC which enabled the completion of the project.TERI has played a vital role as the Regional Coordinator.

430

Three-dimensional multispecies MHD studies of the solar wind interaction with Mars in the presence of crustal fields  

E-Print Network [OSTI]

Three-dimensional multispecies MHD studies of the solar wind interaction with Mars in the presence of Michigan, Ann Arbor, Michigan, USA K. G. Powell Aerospace Engineering Department, University of Michigan, Ann Arbor, Michigan, USA Received 30 January 2002; revised 5 April 2002; accepted 13 May 2002

De Zeeuw, Darren L.

431

The need for high density energy storage for wind turbine and solar power has proven to be a  

E-Print Network [OSTI]

1 The need for high density energy storage for wind turbine and solar power has proven cost of these components but also considerably improve their lifetime and reliability as it removes. New breakthrough for single-layer ceramic capacitors with high performance #12;2 Benefits ANU has

Botea, Adi

432

Comments on Jacobson et al.'s proposal for a wind, water, and solar energy future for New York State  

Science Journals Connector (OSTI)

Abstract Jacobson et al. (2013) recently published a paper arguing the feasibility of meeting all of the energy demands in New York State with wind, solar, and water resources. In this forum we suggest that the authors do not present sufficient analysis to demonstrate the technical, economic, and social feasibility of their proposed strategy.

Nathaniel Gilbraith; Paulina Jaramillo; Fan Tong; Felipe Faria

2013-01-01T23:59:59.000Z

433

The intensity of the main phase of geomagnetic storms in relation to the parameters of the solar wind  

Science Journals Connector (OSTI)

On the basis of investigating 10 storms (1965–1967) good correlation was found between the density of the solar wind energy (?2=1/2mNv2) and the intensity of the main phase of the geomagnetic storms, expressed in...

Petronela Ochabová; Reviewer J. Halenka

1976-01-01T23:59:59.000Z

434

Western Wind and Solar Integration Study: Executive Summary, (WWSIS) May 2010  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

PREPARED FOR: PREPARED FOR: The National Renewable Energy Laboratory A national laboratory of the U.S. Department of Energy PREPARED BY: GE Energy MAY 2010 WESTERN WIND AND SOLAR INTEGRATION STUDY: EXECUTIVE SUMMARY NOTICE This report was prepared as an account of work sponsored by an agency of the United States government. Neither the United States government nor any agency thereof, nor any of their employees, makes any warranty, express or implied, or assumes any legal liability or responsibility for the accuracy, completeness, or usefulness of any information, apparatus, product, or process disclosed, or represents that its use would not infringe privately owned rights. Reference herein to any specific commercial product, process, or service by trade name,

435

Prediction of the Proton-to-Total Turbulent Heating in the Solar Wind  

E-Print Network [OSTI]

This paper employs a recent turbulent heating prescription to predict the ratio of proton-to-total heating due to the kinetic dissipation of Alfvenic turbulence as a function of heliocentric distance. Comparing to a recent empirical estimate for this turbulent heating ratio in the high-speed solar wind, the prediction shows good agreement with the empirical estimate for R >~ 0.8 AU, but predicts less ion heating than the empirical estimate at smaller heliocentric radii. At these smaller radii, the turbulent heating prescription, calculated in the gyrokinetic limit, fails because the turbulent cascade is predicted to reach the proton cyclotron frequency before Landau damping terminates the cascade. These findings suggest that the turbulent cascade can reach the proton cyclotron frequency at R ~ 0.8 AU, this turbulent heating prescription contains all of the necessary physical mechanisms needed to reproduce the empirically estimated proton-to-total heating ratio.

Howes, G G

2011-01-01T23:59:59.000Z

436

Kinetic cascade beyond magnetohydrodynamics of solar wind turbulence in two-dimensional hybrid simulations  

Science Journals Connector (OSTI)

The nature of solar windturbulence in the dissipation range at scales much smaller than the large magnetohydrodynamic (MHD) scales remains under debate. Here a two-dimensional model based on the hybrid code abbreviated as A.I.K.E.F. is presented which treats massive ions as particles obeying the kinetic Vlasov equation and massless electrons as a neutralizing fluid. Up to a certain wavenumber in the MHD regime the numerical system is initialized by assuming a superposition of isotropic Alfvén waves with amplitudes that follow the empirically confirmed spectral law of Kolmogorov. Then turbulence develops and energy cascades into the dispersive spectral range where also dissipative effects occur. Under typical solar wind conditions weak turbulence develops as a superposition of normal modes in the kinetic regime. Spectral analysis in the direction parallel to the background magnetic field reveals a cascade of left-handed Alfvén/ion-cyclotron waves up to wave vectors where their resonant absorption sets in as well as a continuing cascade of right-handed fast-mode and whistler waves. Perpendicular to the background field a broad turbulent spectrum is found to be built up of fluctuations having a strong compressive component. Ion-Bernstein waves seem to be possible normal modes in this propagation direction for lower driving amplitudes. Also signatures of short-scale pressure-balanced structures (very oblique slow-mode waves) are found.

D. Verscharen; E. Marsch; U. Motschmann; J. Müller

2012-01-01T23:59:59.000Z

437

Technical Assistance For Eligible Solar Equipment Lists Pre-Bid Conference Questions and Answers  

E-Print Network [OSTI]

RFP-13-401 Technical Assistance For Eligible Solar Equipment Lists Pre-Bid Conference Questions of Interest issue with companies who are developing, promoting or administering solar R&D programs

438

Dust Detection by the Wave Instrument on STEREO: Nanoparticles Picked up by the Solar Wind?  

E-Print Network [OSTI]

including the large solar panels which contribute to amaterial, kap- ton, solar panel mylar, and a few metallic

2009-01-01T23:59:59.000Z

439

A novel off-grid hybrid power system comprised of solar photovoltaic, wind, and hydro energy sources  

Science Journals Connector (OSTI)

Abstract Several factors must be considered before adopting a full-phase power generation system based on renewable energy sources. Long-term necessary data (for one year if possible) should be collected before making any decisions concerning implementation of such a systems. To accurately assess the potential of available resources, we measured solar irradiation, wind speed, and ambient temperature at two high-altitude locations in Nepal: the Lama Hotel in Rasuwa District and Thingan in Makawanpur District. Here, we propose two practical, economical hybridization methods for small off-grid systems consisting entirely of renewable energy sources—specifically solar photovoltaic (PV), wind, and micro-hydro sources. One of the methods was tested experimentally, and the results can be applied to help achieve Millennium Development Goal 7: Ensuring environmental sustainability. Hydro, wind, and solar photovoltaic energy are the top renewable energy sources in terms of globally installed capacity. However, no reports have been published about off-grid hybrid systems comprised of all three sources, making this implementation the first of its kind anywhere. This research may be applied as a practical guide for implementing similar systems in various locations. Of the four off-grid PV systems installed by the authors for village electrification in Nepal, one was further hybridized with wind and hydro power sources. This paper presents a novel approach for connecting renewable energy sources to a utility mini-grid.

Binayak Bhandari; Kyung-Tae Lee; Caroline Sunyong Lee; Chul-Ki Song; Ramesh K. Maskey; Sung-Hoon Ahn

2014-01-01T23:59:59.000Z

440

A feasibility study of a stand-alone hybrid solar–wind–battery system for a remote island  

Science Journals Connector (OSTI)

Abstract This paper presents a detailed feasibility study and techno-economic evaluation of a standalone hybrid solar–wind system with battery energy storage for a remote island. The solar radiation and wind data on this island in 2009 was recorded for this study. The HOMER software was employed to do the simulations and perform the techno-economic evaluation. Thousands of cases have been carried out to achieve an optimal autonomous system configuration, in terms of system net present cost (NPC) and cost of energy (COE). A detailed analysis, description and expected performance of the proposed system were presented. Moreover, the effects of the PV panel sizing, wind turbine sizing and battery bank capacity on the system’s reliability and economic performance were examined. Finally, a sensitivity analysis on its load consumption and renewable energy resource was performed to evaluate the robustness of economic analysis and identify which variable has the greatest impact on the results. The results demonstrate the techno-economic feasibility of implementing the solar–wind–battery system to supply power to this island.

Tao Ma; Hongxing Yang; Lin Lu

2014-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "rfp solar wind" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


441

Request for Proposals (RFP) Number DE-RP36-07GO97036: Alliance...  

Broader source: Energy.gov (indexed) [DOE]

Proposals (RFP) Number DE-RP36-07GO97036: Alliance Prime Contract No. DE-AC36-08GO28308, through Modification M801 Request for Proposals (RFP) Number DE-RP36-07GO97036: Alliance...

442

VELOCITY-SHEAR-INDUCED MODE COUPLING IN THE SOLAR ATMOSPHERE AND SOLAR WIND: IMPLICATIONS FOR PLASMA HEATING AND MHD TURBULENCE  

SciTech Connect (OSTI)

We analytically consider how velocity shear in the corona and solar wind can cause an initial Alfven wave to drive up other propagating signals. The process is similar to the familiar coupling into other modes induced by non-WKB refraction in an inhomogeneous plasma, except here the refraction is a consequence of velocity shear. We limit our discussion to a low-beta plasma, and ignore couplings into signals resembling the slow mode. If the initial Alfven wave is propagating nearly parallel to the background magnetic field, then the induced signals are mainly a forward-going (i.e., propagating in the same sense as the original Alfven wave) fast mode, and a driven signal propagating like a forward-going Alfven wave but polarized like the fast mode; both signals are compressive and subject to damping by the Landau resonance. For an initial Alfven wave propagating obliquely with respect to the magnetic field, the induced signals are mainly forward- and backward-going fast modes, and a driven signal propagating like a forward-going Alfven wave but polarized like the fast mode; these signals are all compressive and subject to damping by the Landau resonance. A backward-going Alfven wave, thought to be important in the development of MHD turbulence, is also produced, but it is very weak. However, we suggest that for oblique propagation of the initial Alfven wave the induced fast-polarized signal propagating like a forward-going Alfven wave may interact coherently with the initial Alfven wave and distort it at a strong-turbulence-like rate.

Hollweg, Joseph V.; Chandran, Benjamin D. G. [Space Science Center, Morse Hall, University of New Hampshire, Durham, NH 03824 (United States); Kaghashvili, Edisher Kh., E-mail: joe.hollweg@unh.edu, E-mail: ekaghash@aer.com, E-mail: benjamin.chandran@unh.edu [Atmospheric and Environmental Research, A Verisk Analytics Company, 131 Hartwell Avenue, Lexington, MA 02421 (United States)

2013-06-01T23:59:59.000Z

443

Portland General Electic RFP--deadline for intent to bid September 3, 2013  

Open Energy Info (EERE)

Portland General Electic RFP--deadline for intent to bid September 3, 2013 Portland General Electic RFP--deadline for intent to bid September 3, 2013 at 5:00 PM PDT Home > Groups > Renewable Energy RFPs LShapton's picture Submitted by LShapton(9) Member 28 August, 2013 - 15:09 Portland General Electric has issued an RFP for marketing and supply for its voluntary renewable energy program. Bidders may bid on the marketing or supply portions of the RFP or both. Intent to bid is due September 3, 2013. Date: Wednesday, 28 August, 2013 - 00:00 - Tuesday, 3 September, 2013 - 17:00 Groups: Renewable Energy RFPs Login to post comments Latest event comments No comments have been made yet Groups Menu You must login in order to post into this group. Past group events Aug 27 2013 Portland General Electic RFP--deadline for intent to bid September 3, 2013

444

Analysis of the Impact of Balancing Area Cooperation on the Operation of the Western Interconnection with Wind and Solar Generation (Presentation)  

SciTech Connect (OSTI)

This presentation describes the analysis of the impact of balancing area cooperation on the operation of the Western Interconnection with wind and solar generation, including a discussion of operating reserves, ramping, production simulation, and conclusions.

Milligan, M.; Lew, D.; Jordan, G.; Piwko, R.; Kirby, B.; King, J.; Beuning, S.

2011-05-01T23:59:59.000Z

445

On the validity of Akasofu’s ? parameter and of the Vasyliunas et al. general formula for the rate of solar wind-magnetosphere energy input  

Science Journals Connector (OSTI)

The ? parameter of Akasofu and the general formula of Vasyliunas et al....(1982) have been widely used as functions representing the rate of the solar wind energy input into the Earth’s magnetosphere. These...B, ...

Takao Aoki

2005-02-01T23:59:59.000Z

446

Nitrogen isotopes in the recent solar wind from the analysis of genesis targets: evidence for large scale isotope heterogeneity in the nascent solar system  

SciTech Connect (OSTI)

Nitrogen, the fifth most abundant element in the universe, displays the largest stable isotope variations in the solar system reservoirs after hydrogen. Yet the value of isotopic composition of solar nitrogen, presumably the best proxy of the protosolar nebula composition, is not known. Nitrogen isotopes trapped in Genesis spacecraft target material indicate a 40 % depletion of {sup 15}N in solar wind N relative to inner planets and meteorites, and define a composition for the present-day Sun undistinguishable from that of Jupiter's atmosphere. These results indicate that the isotopic composition of of nitrogen in the outer convective zone of the Sun (OCZ) has not changed through time, and is representative of the protosolar nebula. Large {sup 15}N enrichments during e.g., irradiation, or contributions from {sup 15}N-rich presolar components, are required to account for planetary values.

Wiens, Roger C [Los Alamos National Laboratory; Marty, Bernard [INSU-CNRS; Zimmermann, Laurent [INSU-CNRS; Burnard, Peter G [INSU-CNRS; Burnett, Donald L [CALTECH; Heber, Veronika S [ETH ZURICH; Wieler, Rainer [ETH ZURICH; Bochsler, Peter [UNIV OV BERN

2009-01-01T23:59:59.000Z

447

A KINETIC MODEL OF SOLAR WIND GENERATION BY OBLIQUE ION-CYCLOTRON WAVES  

SciTech Connect (OSTI)

The fast solar wind is generated by extended perpendicular ion heating in coronal holes, but the kinetic mechanism responsible for this heating has not been determined. One long-standing possibility is the resonant-cyclotron dissipation of ion-cyclotron waves, replenished from a turbulent cascade of interacting counter-propagating Alfven waves. We present results of a kinetic model for proton heating by the quasilinear resonant-cyclotron wave-particle interaction in a coronal hole. The resonant wave spectrum is taken as a power law in wavenumber, uniformly distributed in propagation direction between 0 deg. and 60 deg. with respect to the large-scale radial magnetic field. We obtain the steady-state solution of the kinetic guiding-center equation for the proton distribution in an expanding coronal hole, including the effects of large-scale forces of gravity, charge-separation electric field, Alfven wave ponderomotive force, and mirror force, along with the small-scale scattering from the wave dissipation. We find that plausible wave intensities can yield reasonable flow speeds and temperatures in the heliocentric radial range between 2 and 6 solar radii. We address the claim in earlier work that dissipation of parallel-propagating ion-cyclotron waves cannot provide enough acceleration and show that claim to be incorrect. We find that the combined action of the large-scale forces and the resonant-cyclotron scattering produces proton distribution functions with a characteristic structure: compressed in the sunward half of velocity space with a high-density shell separate from the origin, and relatively expanded in the anti-sunward half of velocity space. We suggest that qualitatively similar proton distributions would result from the kinetic evolution of any sufficiently effective perpendicular heating mechanism operating in an expanding coronal hole.

Isenberg, Philip A.; Vasquez, Bernard J. [Institute for the Study of Earth, Oceans and Space and Department of Physics, University of New Hampshire, Durham, NH 03824 (United States)

2011-04-20T23:59:59.000Z

448

DOE Hydrogen and Fuel Cells Program Record 5012a: Well-to-Wheels Analyses for Solar and Wind Hydrogen Production  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

DOE Hydrogen and Fuel Cells Program Record DOE Hydrogen and Fuel Cells Program Record Record #: 5012a Date: December 21, 2005 Title: Well-to-Wheels Analyses for Solar & Wind Hydrogen Production Originator: Roxanne Garland Approved by: JoAnn Milliken Date: January 6, 2006 Item: This record explains the basis for the differences between the analyses of well-to-wheels energy use and greenhouse gas emissions conducted via Argonne National Laboratory's GREET Model, cited in the U.S. Department of Energy's Solar and Wind Technologies for Hydrogen Production Report to Congress, 1 and those conducted by the National Research Council, cited in the report The Hydrogen Economy: Opportunities, Costs, Barriers, and R&D Needs. 2 Well-to-Wheels Energy Use and Greenhouse Gas Emissions - Argonne National

449

Modeling and optimization of hybrid wind–solar-powered reverse osmosis water desalination system in Saudi Arabia  

Science Journals Connector (OSTI)

Abstract A hybrid wind/solar powered reverse osmosis desalination system has been modeled and simulated. The results of the simulation have been used to optimize the system for the minimum cost per cubic meter of the desalinated water. The performance of the hybrid wind/solar powered RO system has been analyzed under Dhahran, Saudi Arabia, weather data for a typical year. The performance has been evaluated under a constant RO load of 1 kW for 12 h/day and 24 h/day. The simulation results revealed that the optimum system that powers a 1-kW RO system for 12 h/day that yields a minimum levelized cost of energy comprises 2 wind turbines, 40 \\{PVs\\} modules and 6 batteries and the levelized cost of energy of such system is found to be 0.624 $/kW h. On the other hand, for a load of 1-kW for 24 h/day, the optimum system consists of 6 wind turbines, 66 \\{PVs\\} modules and 16 batteries with a minimum levelized cost of energy 0.672 $/kW h. Depending on the salinity of the raw water, the energy consumption for desalination ranges between 8 and 20 kW h/m3. This means that the cost of using the proposed optimum hybrid wind/solar system for water desalination will range between $3.693/m3 and $3. 812/m3 which is less than the range reported in the literature.

Esmail M.A. Mokheimer; Ahmet Z. Sahin; Abdullah Al-Sharafi; Ahmad I. Ali

2013-01-01T23:59:59.000Z

450

Electric grid dependence on the configuration of a small-scale wind and solar power hybrid system  

Science Journals Connector (OSTI)

Results are presented from the modeling of a small-scale distributed power system containing power demands, photovoltaic arrays, small-scale wind turbines and an electric grid connection. Detailed models of the photovoltaic array and the wind turbine are briefly explained in addition to the solar and wind recourse models. A subunit is defined to consist of a power demand together with power contributors. It is shown how the grid dependency (or renewable energy contribution) is affected by the connection of subunits and according to the relationship between the power demand patterns and renewable resource patterns. The outcome from several case studies is presented using simulated power demands and renewable resources. In a scenario with subunit power demands characteristic for a large household and a small factory, it is shown that the coupling of subunits reduces annual grid power transfers by more than 10% and increases the renewable power contribution to the demand by almost 7%.

M. Mikati; M. Santos; C. Armenta

2013-01-01T23:59:59.000Z

451

Reliant RFP-Renewables 8.22.03  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Reliant Energy Electric Solutions, LLC Reliant Energy Electric Solutions, LLC Renewable Energy And Renewable Energy Credits Request for Proposals August 22, 2003 Date: August 22, 2003 Table of Contents Section - I Introduction..........................................................4 1.1 Description of Reliant Energy Electric Solutions, LLC 1.1.1 Organization 1.1.2 Financial Information 1.2 Purpose of this RFP 1.3 Qualified Sellers 1.4 Not an Offer Section - II Instructions to Potential Sellers..........................6 2.1 General Instructions 2.2 Timeframe 2.3 Delivery of Proposals 2.4 REES Contact 2.5 Evaluation Criteria Section - III Description of the Transaction...........................7 3.1 Product 3.2 Contract Quantity 3.3 Term 3.4 Curtailments

452

Microsoft Word - NICCR_RFP_09_10.doc  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

National Institute for Climatic Change Research (NICCR) National Institute for Climatic Change Research (NICCR) Notice RFP-05 Summary The U.S. Department of Energy (DOE) National Institute for Climatic Change Research (NICCR) hereby announces its request for research proposals. Proposed research is requested that would answer important questions about potential effects of contemporary climatic change on the structure and functioning of important U.S. terrestrial ecosystems, or that would answer important questions about possible feedbacks from terrestrial ecosystems to changes in climate or atmospheric composition. This request for proposals is to (1) perform one-year synthesis activities that address a clearly defined gap in scientific knowledge of terrestrial ecosystems and climate change, (2) renew

453

Optimal sizing method for stand-alone hybrid solar–wind system with LPSP technology by using genetic algorithm  

Science Journals Connector (OSTI)

System power reliability under varying weather conditions and the corresponding system cost are the two main concerns for designing hybrid solar–wind power generation systems. This paper recommends an optimal sizing method to optimize the configurations of a hybrid solar–wind system employing battery banks. Based on a genetic algorithm (GA), which has the ability to attain the global optimum with relative computational simplicity, one optimal sizing method was developed to calculate the optimum system configuration that can achieve the customers required loss of power supply probability (LPSP) with a minimum annualized cost of system (ACS). The decision variables included in the optimization process are the PV module number, wind turbine number, battery number, PV module slope angle and wind turbine installation height. The proposed method has been applied to the analysis of a hybrid system which supplies power for a telecommunication relay station, and good optimization performance has been found. Furthermore, the relationships between system power reliability and system configurations were also given.

Hongxing Yang; Wei Zhou; Lin Lu; Zhaohong Fang

2008-01-01T23:59:59.000Z

454

Sustainable Power Supply Using Solar Energy and Wind Power Combined with Energy Storage  

Science Journals Connector (OSTI)

Abstract The idea of integrating intermittent sources of energy such as solar and wind with energy storage has several benefits for the electricity grid. The first benefit is that energy storage can help the grid during the periods that grid is facing high peak demand. The second benefit is that using energy storage would help shifting the grid load from peak and busy time to a less demand time. And the third benefit is that using energy storage would help smoothing the variations in power generation fed into the grid by variable and intermittent renewable resources. The third benefit is of particular important because in future more renewable energy sources will be integrated into the electricity grid worldwide. The objective of this paper is to present the results of a study conducted to examine the potential role and potential benefits of energy storage integrated into intermittent sources. Using energy storage will provide an opportunity to create a sustainable power supply, and to make the electricity grid more reliable especially with large proportion of grid-connected renewable sources.

Ahmad Zahedi

2014-01-01T23:59:59.000Z

455

Hybrid simulations of preferential heating of heavy ions in the solar wind  

Science Journals Connector (OSTI)

We present results from the first fully self-consistent 1D hybrid (kinetic ions/fluid electrons) simulations of the preferential heating of alphas and heavier minor ions by a flat spectrum of Alfvén-ion cyclotron waves in a collisionless plasma. We find that the simulations reproduce the observed solar wind scaling T?M for alphas and heavier minor ions when the alphas and the minor ions have equal charge to mass ratios q/M and equal initial thermal velocities V th =(T/M) 1/2 . This scaling is interpreted as a result of the basic physics: the time evolution of the Vlasov/Maxwell system without collisions depends only on the ratio q/M and not q or M separately. Because this result follows from the basic nature of the physical model the T?M scaling would be obtained for any spectrum of waves. For minor ions with q/M different from the alphas but equal initial thermal velocities the final thermal velocity is seen to vary by ±50% from that of the alphas in the simulations presented here.

Paulett C. Liewer; Marco Velli; Bruce E. Goldstein

2000-01-01T23:59:59.000Z

456

PREDICTION OF THE PROTON-TO-TOTAL TURBULENT HEATING IN THE SOLAR WIND  

SciTech Connect (OSTI)

This paper employs a recent turbulent heating prescription to predict the ratio of proton-to-total heating due to the kinetic dissipation of Alfvenic turbulence as a function of heliocentric distance. Comparing to a recent empirical estimate for this turbulent heating ratio in the high-speed solar wind, the prediction shows good agreement with the empirical estimate for R {approx}> 0.8 AU, but predicts less ion heating than the empirical estimate at smaller heliocentric radii. At these smaller radii, the turbulent heating prescription, calculated in the gyrokinetic limit, fails because the turbulent cascade is predicted to reach the proton cyclotron frequency before Landau damping terminates the cascade. These findings suggest that the turbulent cascade can reach the proton cyclotron frequency at R {approx}< 0.8 AU, leading to a higher level of proton heating than predicted by the turbulent heating prescription in the gyrokinetic limit. At larger heliocentric radii, R {approx}> 0.8 AU, this turbulent heating prescription contains all of the necessary physical mechanisms needed to reproduce the empirically estimated proton-to-total heating ratio.

Howes, G. G. [Department of Physics and Astronomy, University of Iowa, Iowa City, IA 52242 (United States)

2011-09-01T23:59:59.000Z

457

JOURNAL OF GEOPHYSICAL RESEARCH,VOL. 91,NO. A4,PAGES4126-4132,APRIL 1, 1986 Viscosity in the Solar Wind  

E-Print Network [OSTI]

,we reconsiderthe effectsof viscosity on solar wind momentum and energy balance,but devote little attentionto Wind THOMAS E. HOLZER High AltitudeObservatory,National Centerfor AtmosphericResearch,Boulder,Colorado EGIL LEER TheAuroralObservatory,InstituteofMathematicalandPhysicalSciences,Universityof Tromsf5,Norway

Zhao, Xuepu

458

Comment on"Air Emissions Due to Wind and Solar Power" and Supporting Information  

SciTech Connect (OSTI)

Katzenstein and Apt investigate the important question of pollution emission reduction benefits from variable generation resources such as wind and solar. Their methodology, which couples an individual variable generator to a dedicated gas plant to produce a flat block of power is, however, inappropriate. For CO{sub 2}, the authors conclude that variable generators 'achieve {approx} 80% of the emission reductions expected if the power fluctuations caused no additional emissions.' They find even lower NO{sub x} emission reduction benefits with steam-injected gas turbines and a 2-4 times net increase in NO{sub x} emissions for systems with dry NO{sub x} control unless the ratio of energy from natural gas to variable plants is greater than 2:1. A more appropriate methodology, however, would find a significantly lower degradation of the emissions benefit than suggested by Katzenstein and Apt. As has been known for many years, models of large power system operations must take into account variable demand and the unit commitment and economic dispatch functions that are practiced every day by system operators. It is also well-known that every change in wind or solar power output does not need to be countered by an equal and opposite change in a dispatchable resource. The authors recognize that several of their assumptions to the contrary are incorrect and that their estimates therefore provide at best an upper bound to the emissions degradation caused by fluctuating output. Yet they still present the strong conclusion: 'Carbon dioxide emissions reductions are likely to be 75-80% of those presently assumed by policy makers. We have shown that the conventional method used to calculate emissions is inaccurate, particularly for NO{sub x} emissions.' The inherently problematic methodology used by the authors makes such strong conclusions suspect. Specifically, assuming that each variable plant requires a dedicated natural gas backup plant to create a flat block of power ignores the benefits of diversity. In real power systems, operators are required to balance only the net variations of all loads and all generators, not the output of individual loads or generators; doing otherwise would ensure an enormous amount of unnecessary investment and operating costs. As a result, detailed studies that aggregate the variability of all loads and generators to the system level find that the amount of operating reserves required to reliably integrate variable resources into the grid are on the order of 10% of the nameplate capacity of the variable generators, even when upto25%of gross demand is being met by variable generation. The authors implicit assumption that incremental operating reserves must be 100% of the nameplate capacity of the variable generation, and be available at all times to directly counter that variability, excludes the option of decommitting conventional units when the load net of variable generation is low. In real power systems, generation response to wind variation can typically be met by a combination of committed units, each operating at a relatively efficient point of their fuel curves. In the Supporting Information, we conceptually demonstrate that the CO{sub 2} and NO{sub x} efficiency penalty found by the authors can be significantly reduced by considering the unit commitment decision with just five plants. Real systems often have tens to hundreds of plants that can be committed and decommitted over various time frames. Ignoring the flexibility of the unit commitment decision therefore leads to unsupportable results. Anumber of analyses of the fuel savings and CO{sub 2} emission benefits of variable generation have considered realistic operating reserve requirements and unit commitment decisions in models that include the reduction in part load efficiency of conventional plants. The efficiency penalty due to the variability of wind in four studies considered by Gross et al. is negligible to 7%, for up to a 20% wind penetration level. In short, for moderate wind penetration levels, 'there is no evidence available to

Mills, Andrew D.; Wiser, Ryan H.; Milligan, Michael; O'Malley, Mark

2009-03-18T23:59:59.000Z

459

Traveling solar-wind bulk-velocity fluctuations and their effects on electron heating in the inner heliosphere  

E-Print Network [OSTI]

Ambient plasma electrons undergo strong heating in regions associated with compressive traveling interplanetary solar-wind bulk-velocity jumps due to their specific interactions with the jump-inherent electric fields. After thermalization of this energy gain per shock passage through the operation of the Buneman instability, strong electron heating occurs that substantially influences the radial electron temperature profile. We describe the reduction of the jump amplitude due to energy expended by the traveling jump structure. We consider three effects; namely energy loss due to heating of electrons, energy loss due to work done against the pick-up-ion pressure gradient, and an energy gain due to nonlinear jump steepening. Taking these effects into account, we show that the decrease in jump amplitude with solar distance is more pronounced when the initial jump amplitude is higher in the inner solar system. Independent of the initial jump amplitude, it eventually decreases with increasing distance to a value o...

Fahr, Hans J; Verscharen, Daniel

2014-01-01T23:59:59.000Z

460

CORONAL HEATING BY SURFACE ALFVEN WAVE DAMPING: IMPLEMENTATION IN A GLOBAL MAGNETOHYDRODYNAMICS MODEL OF THE SOLAR WIND  

SciTech Connect (OSTI)

The heating and acceleration of the solar wind is an active area of research. Alfven waves, because of their ability to accelerate and heat the plasma, are a likely candidate in both processes. Many models have explored wave dissipation mechanisms which act either in closed or open magnetic field regions. In this work, we emphasize the boundary between these regions, drawing on observations which indicate unique heating is present there. We utilize a new solar corona component of the Space Weather Modeling Framework, in which Alfven wave energy transport is self-consistently coupled to the magnetohydrodynamic equations. In this solar wind model, the wave pressure gradient accelerates and wave dissipation heats the plasma. Kolmogorov-like wave dissipation as expressed by Hollweg along open magnetic field lines was presented in van der Holst et al. Here, we introduce an additional dissipation mechanism: surface Alfven wave (SAW) damping, which occurs in regions with transverse (with respect to the magnetic field) gradients in the local Alfven speed. For solar minimum conditions, we find that SAW dissipation is weak in the polar regions (where Hollweg dissipation is strong), and strong in subpolar latitudes and the boundaries of open and closed magnetic fields (where Hollweg dissipation is weak). We show that SAW damping reproduces regions of enhanced temperature at the boundaries of open and closed magnetic fields seen in tomographic reconstructions in the low corona. Also, we argue that Ulysses data in the heliosphere show enhanced temperatures at the boundaries of fast and slow solar wind, which is reproduced by SAW dissipation. Therefore, the model's temperature distribution shows best agreement with these observations when both dissipation mechanisms are considered. Lastly, we use observational constraints of shock formation in the low corona to assess the Alfven speed profile in the model. We find that, compared to a polytropic solar wind model, the wave-driven model with physical dissipation mechanisms presented in this work is more aligned with an empirical Alfven speed profile. Therefore, a wave-driven model which includes the effects of SAW damping is a better background to simulate coronal-mass-ejection-driven shocks.

Evans, R. M. [NASA Goddard Space Flight Center, Space Weather Lab, Greenbelt, MD 20771 (United States); Opher, M. [Astronomy Department, Boston University, 675 Commonwealth Avenue, Boston, MA 02215 (United States); Oran, R.; Van der Holst, B.; Sokolov, I. V.; Frazin, R.; Gombosi, T. I. [Center for Space Environment Modeling, University of Michigan, 2455 Hayward Street, Ann Arbor, MI 48109 (United States); Vasquez, A., E-mail: Rebekah.e.frolov@nasa.gov [Instituto de Astronomia y Fisica del Espacio (CONICET-UBA) and FCEN (UBA), CC 67, Suc 28, Ciudad de Buenos Aires (Argentina)

2012-09-10T23:59:59.000Z

Note: This page contains sample records for the topic "rfp solar wind" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


461

WPAN Based Preventive Condition Monitoring for Solar Wind Energy Converters in Rural Electrification  

Science Journals Connector (OSTI)

Though the fast depletion of conventional energy reserves motivating the generation and usage of nonconventional energy sources, the initial investment on wind energy converters and their high maintenance cost due to the height of the wind tower, down ... Keywords: non-conventional energy sources, wind energy converters, maintenance, IEEE 802.15.4 wireless technology

Rambabu A. Vatti; Arun N. Gaikwad

2013-09-01T23:59:59.000Z

462

Coronal Heating and Acceleration of the High/Low-Speed Solar Wind by Fast/Slow MHD Shock Trains  

E-Print Network [OSTI]

We investigate coronal heating and acceleration of the high- and low-speed solar wind in the open field region by dissipation of fast and slow magnetohydrodynamical (MHD) waves through MHD shocks. Linearly polarized \\Alfven (fast MHD) waves and acoustic (slow MHD) waves travelling upwardly along with a magnetic field line eventually form fast switch-on shock trains and hydrodynamical shock trains (N-waves) respectively to heat and accelerate the plasma. We determine one dimensional structure of the corona from the bottom of the transition region (TR) to 1AU under the steady-state condition by solving evolutionary equations for the shock amplitudes simultaneously with the momentum and proton/electron energy equations. Our model reproduces the overall trend of the high-speed wind from the polar holes and the low-speed wind from the mid- to low-latitude streamer except the observed hot corona in the streamer. The heating from the slow waves is effective in the low corona to increase the density there, and plays an important role in the formation of the dense low-speed wind. On the other hand, the fast waves can carry a sizable energy to the upper level to heat the outer corona and accelerate the high-speed wind effectively. We also study dependency on field strength, $B_0$, at the bottom of the TR and non-radial expansion of a flow tube, $f_{\\rm max}$, to find that large $B_0/f_{\\rm max}\\gtrsim 2$ but small $B_0\\simeq 2$G are favorable for the high-speed wind and that small $B_0/f_{\\rm max}\\simeq 1$ is required for the low-speed wind.

Takeru K. Suzuki

2003-12-22T23:59:59.000Z

463

On the Heating of the Solar Corona and the Acceleration of the Low-Speed Solar Wind by Acoustic Waves Generated in Corona  

E-Print Network [OSTI]

We investigate possibilities of solar coronal heating by acoustic waves generated not at the photosphere but in the corona, aiming at heating in the mid- to low-latitude corona where the low-speed wind is expected to come from. Acoustic waves of period tau ~ 100s are triggered by chromospheric reconnection, one model of small scale magnetic reconnection events recently proposed by Sturrock. These waves having a finite amplitude eventually form shocks to shape sawtooth waves (N-waves), and directly heat the surrounding corona by dissipation of their wave energy. Outward propagation of the N-waves is treated based on the weak shock theory, so that the heating rate can be evaluated consistently with physical properties of the background coronal plasma without setting a dissipation length in an ad hoc manner. We construct coronal structures from the upper chromosphere to the outside of 1AU for various inputs of the acoustic waves having a range of energy flux of F_{w,0} = (1-20) times 10^5 erg cm^{-2} s^{-1} and a period of tau = 60-300s. The heating by the N-wave dissipation effectively works in the inner corona and we find that the waves of F_{w,0} >= 2 times 10^5 erg cm^{-2} s^{-1} and tau >= 60s could maintain peak coronal temperature, T_{max} > 10^6 K. The model could also reproduce the density profile observed in the streamer region. However, due to its short dissipation length, the location of T_{max} is closer to the surface than the observation, and the resultant flow velocity of the solar wind is lower than the observed profile of the low-speed wind. The cooperations with other heating and acceleration sources with the larger dissipation length are inevitable to reproduce the real solar corona.

Takeru Ken Suzuki

2002-06-14T23:59:59.000Z

464

Solar wind energy transfer regions inside the dayside magnetopause—I. Evidence for magnetosheath plasma penetration  

Science Journals Connector (OSTI)

PROGNOZ-7 high temporal resolution measurements of the ion composition and hot plasma distribution in the dayside high latitude boundary layer near noon have revealed that magnetosheath plasma may penetrate the dayside magnetopause and form high density, high ?, magnetosheath-like regions inside the magnetopause. We will from these measurements demonstrate that the magnetosheath injection regions most probably play an important role in transferring solar wind energy into the magnetosphere. The transfer regions are characterized by a strong perpendicular flow towards dawn or dusk (depending on local time) but are also observed to expand rapidly along the boundary layer field lines. This increased flow component transverse to the local magnetic field corresponds to a predominantly radial electric field of up to several mV m?1, which indicates that the injected magnetosheath plasma causes an enhanced polarization of the boundary layer. Polarization of the boundary layer can therefore be considered a result of a local MHD-process where magnetosheath plasma excess momentum is converted into electromagnetic energy (electric field), i.e. we have primarily an MHD-generator there. We state primarily because we also observe acceleration of “cold” ions inside the magnetopause as a result of this radial electric field. A few cases of polarity reversals suggest that the polarization is sometimes quite localized. The perhaps most significant finding is that the boundary layer is observed to be charged up to tens of kilovolts, a potential which may be highly variable depending on e.g. the presence of a momentum exchange by the energy transfer regions.

R. Lundin; E. Dubinin

1984-01-01T23:59:59.000Z

465

Interaction of the plasma tail of comet Bradfield 1979L on 1980 February 6 with a possibly flare-generated solar-wind disturbance  

SciTech Connect (OSTI)

Solar-wind plasma data from the ISEE-3 and Helios 2 spacecraft have been examined in order to explain a uniquely rapid 10/sup 0/ turning of the plasma tail of comet Bradfield 1979L on 1980 February 6. An earlier study conducted before the availability of in situ solar-wind data (Brandt et al., 1980) suggested that the tail position angle change occurred in response to a solar-wind velocity shear across which the polar component changed by approx. 50 km s/sup -1/. The present contribution confirms this result and further suggests that the comet-tail activity was caused by non-corotating, disturbed plasma flows probably associated with an Importance 1B solar flare.

Niedner, M.B. Jr.; Brandt, J.C.; Zwickl, R.D.; Bame, S.J.

1982-01-01T23:59:59.000Z

466

Solar powered desalination system  

E-Print Network [OSTI]

As a clean energy source, solar power is inexhaustible,renewables for energy sources, including solar power. Also,Requirements Energy Source Natural Gas Nuclear Solar Wind

Mateo, Tiffany Alisa

2011-01-01T23:59:59.000Z

467

The market value of variable renewables: The effect of solar wind power variability on their relative price  

Science Journals Connector (OSTI)

Abstract This paper provides a comprehensive discussion of the market value of variable renewable energy (VRE). The inherent variability of wind speeds and solar radiation affects the price that VRE generators receive on the market (market value). During windy and sunny times the additional electricity supply reduces the prices. Because the drop is larger with more installed capacity, the market value of VRE falls with higher penetration rate. This study aims to develop a better understanding on how the market value with penetration, and how policies and prices affect the market value. Quantitative evidence is derived from a review of published studies, regression analysis of market data, and the calibrated model of the European electricity market EMMA. We find the value of wind power to fall from 110% of the average power price to 50–80% as wind penetration increases from zero to 30% of total electricity consumption. For solar power, similarly low value levels are reached already at 15% penetration. Hence, competitive large-scale renewable deployment will be more difficult to accomplish than as many anticipate.

Lion Hirth

2013-01-01T23:59:59.000Z

468

A HYBRID SOLAR WIND MODEL OF THE CESE+HLL METHOD WITH A YIN-YANG OVERSET GRID AND AN AMR GRID  

SciTech Connect (OSTI)

A hybrid three-dimensional (3D) MHD model for solar wind study is proposed in the present paper with combined grid systems and solvers. The computational domain from the Sun to Earth space is decomposed into the near-Sun and off-Sun domains, which are respectively constructed with a Yin-Yang overset grid system and a Cartesian adaptive mesh refinement (AMR) grid system and coupled with a domain connection interface in the overlapping region between the near-Sun and off-Sun domains. The space-time conservation element and solution element method is used in the near-Sun domain, while the Harten-Lax-Leer method is employed in the off-Sun domain. The Yin-Yang overset grid can avoid well-known singularity and polar grid convergence problems and its body-fitting property helps achieve high-quality resolution near the solar surface. The block structured AMR Cartesian grid can automatically capture far-field plasma flow features, such as heliospheric current sheets and shock waves, and at the same time, it can save significant computational resources compared to the uniformly structured Cartesian grid. A numerical study of the solar wind structure for Carrington rotation 2069 shows that the newly developed hybrid MHD solar wind model successfully produces many realistic features of the background solar wind, in both the solar corona and interplanetary space, by comparisons with multiple solar and interplanetary observations.

Feng Xueshang; Zhang Shaohua; Xiang Changqing; Yang Liping; Jiang Chaowei [SIGMA Weather Group, State Key Laboratory for Space Weather, Center for Space Science and Applied Research, Chinese Academy of Sciences, Beijing 100190 (China); Wu, S. T., E-mail: fengx@spaceweather.ac.cn [Center for Space Plasma and Aeronomic Research, University of Alabama in Huntsville, AL 35899 (United States)

2011-06-10T23:59:59.000Z

469

A Hybrid Solar Wind Model of the CESE+HLL Method with a Yin-Yang Overset Grid and an AMR Grid  

Science Journals Connector (OSTI)

A hybrid three-dimensional (3D) MHD model for solar wind study is proposed in the present paper with combined grid systems and solvers. The computational domain from the Sun to Earth space is decomposed into the near-Sun and off-Sun domains, which are respectively constructed with a Yin-Yang overset grid system and a Cartesian adaptive mesh refinement (AMR) grid system and coupled with a domain connection interface in the overlapping region between the near-Sun and off-Sun domains. The space-time conservation element and solution element method is used in the near-Sun domain, while the Harten-Lax-Leer method is employed in the off-Sun domain. The Yin-Yang overset grid can avoid well-known singularity and polar grid convergence problems and its body-fitting property helps achieve high-quality resolution near the solar surface. The block structured AMR Cartesian grid can automatically capture far-field plasma flow features, such as heliospheric current sheets and shock waves, and at the same time, it can save significant computational resources compared to the uniformly structured Cartesian grid. A numerical study of the solar wind structure for Carrington rotation 2069 shows that the newly developed hybrid MHD solar wind model successfully produces many realistic features of the background solar wind, in both the solar corona and interplanetary space, by comparisons with multiple solar and interplanetary observations.

Xueshang Feng; Shaohua Zhang; Changqing Xiang; Liping Yang; Chaowei Jiang; S. T. Wu

2011-01-01T23:59:59.000Z

470

DOE ESPC TASK ORDER REQUEST FOR PROPOSAL (TO RFP) TEMPLATE (11/20/08)  

Broader source: Energy.gov (indexed) [DOE]

DOE ESPC DOE ESPC TASK ORDER REQUEST FOR PROPOSAL (TO RFP) TEMPLATE (11/20/08) INSTRUCTIONS FOR USING THE TEMPLATE The TO RFP is used to communicate agency- or site-specific terms and conditions for the project to the ESCO. The DOE IDIQ contract permits such revision, per section C.1.3: C.1.3 Unless otherwise stated, all provisions that follow throughout the remaining sections of this master IDIQ contract may be revised within the overall scope of the contract, as necessary (based on the needs and regulations of the agency), in an agency TO Request for Proposals (RFP). The TO RFP becomes a part of the task order, along with the IDIQ and the ESCO's final proposal, and its provisions override those of the IDIQ. Contract sections in the template appear in plain arial font; instructions

471

PacifiCorp New Amended RFP Replacing May 2001, Issued Aug. 23, 2001  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

PacifiCorp PacifiCorp REQUEST FOR PROPOSAL FOR TRADABLE RENEWABLE CREDITS (GREEN TAGS, as defined herein) AND ASSOCIATED RETAIL MARKETING FOR OREGON PORTFOLIO BLENDED RENEWABLE AND/OR HABITAT MITIGATION OPTIONS NEW AMENDED RFP REPLACING MAY 2001 GREEN TAGS ONLY RFP ISSUE DATE: August 23, 2001 DUE DATE: At or before 2 p.m. PDT on Thursday, September 20, 2001 CONTACT: Roby Roberts PacifiCorp 825 NE Multnomah Avenue, Suite 600 Portland, Oregon 97232 503 813 - 5975 voice 503 813 - 6260 fax roby.roberts@pacificorp.com PacifiCorp Marketing and Green Tags RFP New Amended RFP August 23, 2001 Page 2 TABLE OF CONTENTS Section * REQUEST FOR PROPOSALS 1 * GENERAL PROCEDURES 2 * DEFINITIONS 3 * SCHEDULE 4 * EVALUATION 5 * DETAILED PROPOSAL REQUIREMENTS 6 * CONTENT OF RESPONSE 7 * DISCUSSIONS AND RIGHT TO REJECT PROPOSALS

472

Golden Reading Room: Request for Proposals (RFP) Number DE-RP36...  

Broader source: Energy.gov (indexed) [DOE]

RFP DE-RP36-07GO97036 -- Management and Operation of the National Renewable Energy Laboratory Alliance Prime Contract No. DE-AC36-08GO28308, through Modification M801...

473

A.W. Blakers, 'Solar and Wind Electricity in Australia', Australian Journal of Environmental Management, Vol 7, pp 223-236, 2000 SOLAR AND WIND ELECTRICITY IN AUSTRALIA  

E-Print Network [OSTI]

environmental impact associated with the construction of what amounts to a coastal hydro scheme. Solar energy.blakers@anu.edu.au Abstract This paper examines the renewable generation of electricity in Australia from photovoltaics (PV environmental impacts even when deployed on very large scales. They are the only fully sustainable technologies

474

Effect of wind speed on the growth of the upper convective zone in a solar pond  

E-Print Network [OSTI]

[2]. The distance which the wind has to act on the surface of a pond is commonly called fetch, or fetch length. The purpose of the nets or other devices used in wind suppression is to reduce the fetch and transmit some of the energy in the waves... to the sides of the pond. Wind mixing of the upper convective zone can be thought of as converting some of the kinetic energy in the wind to potential energy in the fluid by a process called entrainment. Entrainment is defined in detail in Chapter V...

McMinn, Steven Lee

2012-06-07T23:59:59.000Z

475

Petascale Simulations of Inhomogeneous Alfvén Turbulence in the Solar Wind  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

A snapshot of turbulent magnetic field lines (red) inside a coronal hole that expands from a small patch on the solar surface to 5 solar radii A snapshot of turbulent magnetic field lines (red) inside a coronal hole that expands from a small patch on the solar surface to 5 solar radii A snapshot of turbulent magnetic field lines (red) inside a coronal hole that expands from a small patch on the solar surface to 5 solar radii. Alfven waves (AW), launched by convective motions on the photosphere, propagate in the inhomogeneous Solar atmosphere producing primary reflected waves that interact non-linearly with the outward waves, driving a turbulent cascade. This cascade continues with secondary reflections in a very complex interplay between wave reflections and nonlinear interactions. Selected slices across the simulation domain show contours of plasma current, indicating the generation of small scale structures where the

476

A nuclear wind/solar oil-shale system for variable electricity and liquid fuels production  

SciTech Connect (OSTI)

The recoverable reserves of oil shale in the United States exceed the total quantity of oil produced to date worldwide. Oil shale contains no oil, rather it contains kerogen which when heated decomposes into oil, gases, and a carbon char. The energy required to heat the kerogen-containing rock to produce the oil is about a quarter of the energy value of the recovered products. If fossil fuels are burned to supply this energy, the greenhouse gas releases are large relative to producing gasoline and diesel from crude oil. The oil shale can be heated underground with steam from nuclear reactors leaving the carbon char underground - a form of carbon sequestration. Because the thermal conductivity of the oil shale is low, the heating process takes months to years. This process characteristic in a system where the reactor dominates the capital costs creates the option to operate the nuclear reactor at base load while providing variable electricity to meet peak electricity demand and heat for the shale oil at times of low electricity demand. This, in turn, may enable the large scale use of renewables such as wind and solar for electricity production because the base-load nuclear plants can provide lower-cost variable backup electricity. Nuclear shale oil may reduce the greenhouse gas releases from using gasoline and diesel in half relative to gasoline and diesel produced from conventional oil. The variable electricity replaces electricity that would have been produced by fossil plants. The carbon credits from replacing fossil fuels for variable electricity production, if assigned to shale oil production, results in a carbon footprint from burning gasoline or diesel from shale oil that may half that of conventional crude oil. The U.S. imports about 10 million barrels of oil per day at a cost of a billion dollars per day. It would require about 200 GW of high-temperature nuclear heat to recover this quantity of shale oil - about two-thirds the thermal output of existing nuclear reactors in the United States. With the added variable electricity production to enable renewables, additional nuclear capacity would be required. (authors)

Forsberg, C. [Massachusetts Inst. of Technology, 77 Massachusetts Ave., Cambridge, MA 012139 (United States)

2012-07-01T23:59:59.000Z

477

Sandia National Laboratories: Solar Events  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Events No events coming up Tagged with: Energy * Energy Security * Events * Renewable Energy * solar * Solar Energy Comments are closed. Renewable Energy Wind Energy Wind Plant...

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