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Sample records for urban utility-scale pv

  1. PV Controls Utility-Scale Demonstration Project

    SciTech Connect (OSTI)

    O'Neill, Barbara; Gevorgian, Vahan

    2015-10-14

    This presentation provides a high-level overview of the utility-scale PV controls demonstration project.

  2. Utility Scale PV Perspective on SunShot Progress and Opportunities...

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

    Utility Scale PV Perspective on SunShot Progress and Opportunities Utility Scale PV Perspective on SunShot Progress and Opportunities These slides correspond to a presentation...

  3. Utility Scale Solar PV Cost Steven SimmonsSteven Simmons

    E-Print Network [OSTI]

    to 2020 (DOE) Energy Department Announces $12 million to Accelerate Record Breaking Solar Cell Efficiency Nuclear Generating Station. 4 #12;6/19/2013 3 EVEN MORE SUNNY HEADLINES New solar panels glisten6/19/2013 1 Utility Scale Solar PV Cost Steven SimmonsSteven Simmons Northwest Power

  4. Utility-scale grid-tied PV inverter reliability workshop summary report.

    SciTech Connect (OSTI)

    Granata, Jennifer E.; Quintana, Michael A.; Tasca, Coryne Adelle; Atcitty, Stanley

    2011-07-01

    A key to the long-term success of the photovoltaic (PV) industry is confidence in the reliability of PV systems. Inverters are the most commonly noted cause of PV system incidents triggered in the field. While not all of these incidents are reliability-related or even necessarily failures, they still result in a loss of generated power. With support from the U.S. Department of Energy's Solar Energy Technologies Program, Sandia National Laboratories organized a Utility-Scale Grid-Tied Inverter Reliability Workshop in Albuquerque, New Mexico, January 27-28, 2011. The workshop addressed the reliability of large (100-kilowatt+) grid-tied inverters and the implications when such inverters fail, evaluated inverter codes and standards, and provided discussion about opportunities to enhance inverter reliability. This report summarizes discussions and presentations from the workshop and identifies opportunities for future efforts.

  5. Property:PotentialUrbanUtilityScalePVArea | Open Energy Information

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on QA:QAsource HistoryPotentialRuralUtilityScalePVGeneration Jump to: navigation, search Property

  6. Property:PotentialUrbanUtilityScalePVCapacity | Open Energy Information

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on QA:QAsource HistoryPotentialRuralUtilityScalePVGeneration Jump to: navigation, search

  7. Property:PotentialUrbanUtilityScalePVGeneration | Open Energy Information

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on QA:QAsource HistoryPotentialRuralUtilityScalePVGeneration Jump to: navigation,

  8. Efficient Power Converters for PV Arrays : Scalable Submodule Power Conversion for Utility-Scale Photovoltaics

    SciTech Connect (OSTI)

    2012-02-23

    Solar ADEPT Project: SolarBridge is developing a new power conversion technique to improve the energy output of PV power plants. This new technique is specifically aimed at large plants where many solar panels are connected together. SolarBridge is correcting for the inefficiencies that occur when two solar panels that encounter different amounts of sun are connected together. In most conventional PV system, the weakest panel limits the energy production of the entire system. That’s because all of the energy collected by the PV system feeds into a single collection point where a central inverter then converts it into useable energy for the grid. SolarBridge has found a more efficient and cost-effective way to convert solar energy, correcting these power differences before they reach the grid.

  9. A High Efficiency DC-DC Converter Topology Suitable for Distributed Large Commercial and Utility Scale PV Systems

    SciTech Connect (OSTI)

    Mohammed S. Agamy; Maja Harfman-Todorovic; Ahmed Elasser; Robert L. Steigerwald; Juan A. Sabate; Song Chi; Adam J. McCann; Li Zhang; Frank Mueller

    2012-09-01

    In this paper a DC-DC power converter for distributed photovoltaic plant architectures is presented. The proposed converter has the advantages of simplicity, high efficiency, and low cost. High efficiency is achieved by having a portion of the input PV power directly fed forward to the output without being processed by the converter. The operation of this converter also allows for a simplified maximum power point tracker design using fewer measurements

  10. Residential, Commercial, and Utility-Scale Photovoltaic (PV) System Prices in the United States: Current Drivers and Cost-Reduction Opportunities

    SciTech Connect (OSTI)

    Goodrich, A.; James, T.; Woodhouse, M.

    2012-02-01

    The price of photovoltaic (PV) systems in the United States (i.e., the cost to the system owner) has dropped precipitously in recent years, led by substantial reductions in global PV module prices. However, system cost reductions are not necessarily realized or realized in a timely manner by many customers. Many reasons exist for the apparent disconnects between installation costs, component prices, and system prices; most notable is the impact of fair market value considerations on system prices. To guide policy and research and development strategy decisions, it is necessary to develop a granular perspective on the factors that underlie PV system prices and to eliminate subjective pricing parameters. This report's analysis of the overnight capital costs (cash purchase) paid for PV systems attempts to establish an objective methodology that most closely approximates the book value of PV system assets.

  11. A 20-SUN HYBRID PV-THERMAL LINEAR MICRO-CONCENTRATOR SYSTEM FOR URBAN ROOFTOP APPLICATIONS

    E-Print Network [OSTI]

    conditioning (HVAC), and process heat. The system can be modularly configured for hybrid concentrating PVA 20-SUN HYBRID PV-THERMAL LINEAR MICRO-CONCENTRATOR SYSTEM FOR URBAN ROOFTOP APPLICATIONS D Walter of America ABSTRACT A unique, linear, low-concentration, hybrid `micro- concentrator' (MCT) system concept

  12. Photovoltaic (PV) Pricing Trends: Historical, Recent, and Near-Term Projections

    E-Print Network [OSTI]

    Feldman, David

    2014-01-01

    Utility-Scale Photovoltaic (PV) System Prices in the Unitedphotovoltaic (PV) systems has soared in recent years, driven by declining PV prices

  13. Utility-Scale Solar Power Converter: Agile Direct Grid Connect Medium Voltage 4.7-13.8 kV Power Converter for PV Applications Utilizing Wide Band Gap Devices

    SciTech Connect (OSTI)

    2012-01-25

    Solar ADEPT Project: Satcon is developing a compact, lightweight power conversion device that is capable of taking utility-scale solar power and outputting it directly into the electric utility grid at distribution voltage levels—eliminating the need for large transformers. Transformers “step up” the voltage of the power that is generated by a solar power system so it can be efficiently transported through transmission lines and eventually “stepped down” to usable voltages before it enters homes and businesses. Power companies step up the voltage because less electricity is lost along transmission lines when the voltage is high and current is low. Satcon’s new power conversion devices will eliminate these heavy transformers and connect a utility-scale solar power system directly to the grid. Satcon’s modular devices are designed to ensure reliability—if one device fails it can be bypassed and the system can continue to run.

  14. Phase II -- Photovoltaics for Utility Scale Applications (PVUSA). Progress report

    SciTech Connect (OSTI)

    1995-06-01

    Photovoltaics for Utility Scale Applications (PVUSA) is a national public-private partnership that is assessing and demonstrating the viability of utility-scale (US) photovoltaic (PV) electric generation systems and recent developments in PV module technology. This report updates the project`s progress, reviews the status and performance of the various PV installations during 1994, summarizes key accomplishments and conclusions for the year, and outlines future work. The PVUSA project has five objectives. These are designed to narrow the gap between a large utility industry that is unfamiliar with PV and a small PV industry that is aware of a potentially large utility market but unfamiliar with how to meet its requirements. The objectives are: Evaluate the performance, reliability, and cost of promising PV modules and balance-of-system (BOS) components side by side at a single location; Assess PV system operation and maintenance in a utility setting; Compare US utilities hands-on experience in designing, procuring, and operating PV systems; and, Document and disseminate knowledge gained from the project.

  15. Utility-Scale Wind & Solar Power in the U.S.: Where it stands...

    Energy Savers [EERE]

    solar market has been dominated in recent years by Feed-in-Tariffs (FiT) in Western Europe * At year-end 2013, just over 70 GW of utility-scale and rooftop solar PV was...

  16. U.S. Photovoltaic Prices and Cost Breakdowns. Q1 2015 Benchmarks for Residential, Commercial, and Utility-Scale Systems

    SciTech Connect (OSTI)

    Chung, Donald; Davidson, Carolyn; Fu, Ran; Ardani, Kristen; Margolis, Robert

    2015-09-01

    The price of photovoltaic (PV) systems in the United States (i.e., the cost to the system owner) has continued to decline across all major market sectors. This report provides a Q1 2015 update regarding the prices of residential, commercial, and utility scale PV systems, based on an objective methodology that closely approximates the book value of a PV system. Several cases are benchmarked to represent common variations in business models, labor rates, and system architecture choice. We estimate a weighted-average cash purchase price of $3.09/W for residential scale rooftop systems, $2.15/W for commercial scale rooftop systems, $1.77/W for utility scale systems with fixed mounting structures, and $1.91/W for utility scale systems using single-axis trackers. All systems are modeled assuming standard-efficiency, polycrystalline-silicon PV modules, and further assume installation within the United States.

  17. New Berkeley Lab Report Tracks a Decade of PV Installed Cost Trends

    E-Print Network [OSTI]

    Barbose, Galen

    2009-01-01

    Thus, even if large commercial PV installations continue tojoined by utility-scale PV), the removal of the cap on theLab Report Tracks a Decade of PV Installed Cost Trends Galen

  18. Utility-Scale Solar 2013: An Empirical Analysis of Project Cost, Performance, and Pricing Trends in the United States

    Office of Energy Efficiency and Renewable Energy (EERE)

    Other than the SEGS I-IX parabolic trough projects built in the 1980s, virtually no large-scale or "utility-scale" solar projects existed in the United States prior to 2007. By 2012 – just five years later – utility-scale had become the largest sector of the overall PV market in the United States, a distinction that was repeated in 2013 and is expected to continue for at least the next few years.

  19. Impact of Federal Tax Policy on Utility-Scale Solar Deployment Given Financing Interactions

    SciTech Connect (OSTI)

    Mai, Trieu; Cole, Wesley; Krishnan, Venkat; Bolinger, Mark

    2015-09-28

    In this study, the authors conducted a literature review of approaches and assumptions used by other modeling teams and consultants with respect to solar project financing; developed and incorporated an ability to model the likely financing shift away from more expensive sources of capital and toward cheaper sources as the investment tax credit declines in the ReEDS model; and used the 'before and after' versions of the ReEDS model to isolate and analyze the deployment impact of the financing shift under a range of conditions. Using ReEDS scenarios with this improved capability, we find that this 'financing' shift would soften the blow of the ITC reversion; however, the overall impacts of such a shift in capital structure are estimated to be small and near-term utility-scale PV deployment is found to be much more sensitive to other factors that might drive down utility-scale PV prices.

  20. Utility Scale Solar Inc | Open Energy Information

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on QA:QA J-E-1 SECTION JEnvironmental Jump to:EA EISTJThin FilmUnited States:UserLaborUtility RateUtilityRateUtilityScale

  1. A Minnesota Blizzard Provides Insight into Utility-Scale Wind...

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

    A Minnesota Blizzard Provides Insight into Utility-Scale Wind Turbine Wakes A Minnesota Blizzard Provides Insight into Utility-Scale Wind Turbine Wakes September 12, 2014 - 11:22am...

  2. DOE-LPO-MiniReport_PV_v10

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

    fastest growing sector of the solar industry. Today, utility-scale PV solar has the capacity to produce more than 8,100 MW of electricity - which is enough clean energy to power...

  3. Simulation of one-minute power output from utility-scale photovoltaic generation systems.

    SciTech Connect (OSTI)

    Stein, Joshua S.; Ellis, Abraham; Hansen, Clifford W.

    2011-08-01

    We present an approach to simulate time-synchronized, one-minute power output from large photovoltaic (PV) generation plants in locations where only hourly irradiance estimates are available from satellite sources. The approach uses one-minute irradiance measurements from ground sensors in a climatically and geographically similar area. Irradiance is translated to power using the Sandia Array Performance Model. Power output is generated for 2007 in southern Nevada are being used for a Solar PV Grid Integration Study to estimate the integration costs associated with various utility-scale PV generation levels. Plant designs considered include both fixed-tilt thin-film, and single-axis-tracked polycrystalline Si systems ranging in size from 5 to 300 MW{sub AC}. Simulated power output profiles at one-minute intervals were generated for five scenarios defined by total PV capacity (149.5 MW, 222 WM, 292 MW, 492 MW, and 892 MW) each comprising as many as 10 geographically separated PV plants.

  4. Federal and State Structures to Support Financing Utility-Scale...

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

    and questionnaires. Author: Michael Mendelsohn and Claire Kreycik Federal and State Structures to Support Financing Utility-Scale Solar Projects and the Business Models Designed...

  5. Updated Capital Cost Estimates for Utility Scale Electricity

    E-Print Network [OSTI]

    that will serve future demand for electricity. These parameters also help to determine how new capacity competesUpdated Capital Cost Estimates for Utility Scale Electricity Generating Plants April 2013 Information Administration | Updated Capital Cost Estimates for Utility Scale Electricity Generating Plants ii

  6. Utility-Scale Concentrating Solar Power and Photovoltaic Projects: A Technology and Market Overview

    SciTech Connect (OSTI)

    Mendelsohn, M.; Lowder, T.; Canavan, B.

    2012-04-01

    Over the last several years, solar energy technologies have been, or are in the process of being, deployed at unprecedented levels. A critical recent development, resulting from the massive scale of projects in progress or recently completed, is having the power sold directly to electric utilities. Such 'utility-scale' systems offer the opportunity to deploy solar technologies far faster than the traditional 'behind-the-meter' projects designed to offset retail load. Moreover, these systems have employed significant economies of scale during construction and operation, attracting financial capital, which in turn can reduce the delivered cost of power. This report is a summary of the current U.S. utility-scale solar state-of-the-market and development pipeline. Utility-scale solar energy systems are generally categorized as one of two basic designs: concentrating solar power (CSP) and photovoltaic (PV). CSP systems can be further delineated into four commercially available technologies: parabolic trough, central receiver (CR), parabolic dish, and linear Fresnel reflector. CSP systems can also be categorized as hybrid, which combine a solar-based system (generally parabolic trough, CR, or linear Fresnel) and a fossil fuel energy system to produce electric power or steam.

  7. New Switches for Utility-Scale Inverters: First In-Class Demonstration of a Completely New Type of SiC Bipolar Switch (15kV-20kV) for Utility-Scale Inverters

    SciTech Connect (OSTI)

    2011-12-31

    Solar ADEPT Project: The SiCLAB is developing a new power switch for utility-scale PV inverters that would improve the performance and significantly reduce the size, weight, and energy loss of PV systems. A power switch controls the electrical energy flowing through an inverter, which takes the electrical current from a PV solar panel and converts it into the type and amount of electricity that is compatible with the electric grid. SiCLAB is using silicon carbide (SiC) semiconductors in its new power switches, which are more efficient than the silicon semiconductors used to conduct electricity in most conventional power switches today. Switches with SiC semiconductors can operate at much higher temperatures, as well as higher voltage and power levels than silicon switches. SiC-based power switches are also smaller than those made with silicon alone, so they result in much smaller and lighter electrical devices. In addition to their use in utility-scale PV inverters, SiCLAB’s new power switches can also be used in wind turbines, railways, and other smart grid applications.

  8. Secretary Jewell Announces Approval of Second Utility-Scale Solar...

    Energy Savers [EERE]

    on American Indian Trust Land Secretary Jewell Announces Approval of Second Utility-Scale Solar Energy Project on American Indian Trust Land May 8, 2014 - 4:41pm Addthis As part of...

  9. Utility-Scale Wind Turbines | Open Energy Information

    Open Energy Info (EERE)

    turbines as greater than 1 megawatt. This technology class includes land-based and offshore wind projects. 1 Learn more about utility-scale wind at the links below....

  10. Sensitivity of Utility-Scale Solar Deployment Projections in the SunShot Vision Study to Market and Performance Assumptions

    SciTech Connect (OSTI)

    Eurek, K.; Denholm, P.; Margolis, R.; Mowers, M.

    2013-04-01

    The SunShot Vision Study explored the potential growth of solar markets if solar prices decreased by about 75% from 2010 to 2020. The ReEDS model was used to simulate utility PV and CSP deployment for this present study, based on several market and performance assumptions - electricity demand, natural gas prices, coal retirements, cost and performance of non-solar renewable technologies, PV resource variability, distributed PV deployment, and solar market supply growth - in addition to the SunShot solar price projections. This study finds that utility-scale solar deployment is highly sensitive to solar prices. Other factors can have significant impacts, particularly electricity demand and natural gas prices.

  11. ToHajiilee Economic Development, Inc.(TEDI) Feasibility Study for Utility-Scale Solar

    SciTech Connect (OSTI)

    Burpo, Rob

    2012-02-29

    ToÃ?Â?Hajiilee Economic Development, Inc. (TEDI) is the economic development entity representing the ToHajiilee Chapter of the Navajo Nation, also known as the CaÃ?Â?oncito Band of Navajo (CBN). Using DOE funding, TEDI assembled a team of qualified advisors to conduct a feasibility study for a utility-scale 30 MW Photovoltaic (PV) solar power generation facility on TEDI trust lands. The goal for this project has been to gather information and practical business commitments to successfully complete the feasibility analysis. The TEDI approach was to successively make informed decisions to select an appropriate technology best suited to the site, determine environmental viability of the site, secure options for the sale of generated power, determine practicality of transmission and interconnection of power to the local grid, and secure preliminary commitments on project financing. The feasibility study has been completed and provides TEDI with a practical understanding of its business options in moving forward with developing a solar project on CBN tribal lands. Funding from DOE has allowed TEDI and its team of professional advisors to carefully select technology and business partners and build a business model to develop this utility-scale solar project. As a result of the positive feasibility findings, TEDI is moving forward with finalizing all pre-construction activities for its major renewable energy project.

  12. Advancing the Deployment of Utility-Scale Photovoltaic Plants in the Northeast

    SciTech Connect (OSTI)

    Lofaro R.; Villaran, M; Colli, A.

    2012-06-03

    As one of the premier research laboratories operated by the Department of Energy, Brookhaven National Laboratory (BNL) is pursuing an energy research agenda that focuses on renewable energy systems and will help to secure the nation's energy security. A key element of the BNL research is the advancement of grid-connected utility-scale solar photovoltaic (PV) plants, particularly in the northeastern part of the country where BNL is located. While a great deal of information has been generated regarding solar PV systems located in mostly sunny, hot, arid climates of the southwest US, very little data is available to characterize the performance of these systems in the cool, humid, frequently overcast climates experienced in the northeastern portion of the country. Recognizing that there is both a need and a market for solar PV generation in the northeast, BNL is pursuing research that will advance the deployment of this important renewable energy resource. BNL's research will leverage access to unique time-resolved data sets from the 37MWp solar array recently developed on its campus. In addition, BNL is developing a separate 1MWp solar research array on its campus that will allow field testing of new PV system technologies, including solar modules and balance of plant equipment, such as inverters, energy storage devices, and control platforms. These research capabilities will form the cornerstone of the new Northeast Solar Energy Research Center (NSERC) being developed at BNL. In this paper, an overview of BNL's energy research agenda is given, along with a description of the 37MWp solar array and the NSERC.

  13. Utility Scale PV Perspective on SunShot Progress and Opportunities...

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

    Skip to main content Menu Energy.gov Office of Energy Efficiency & Renewable Energy Search Search form Search Office of Energy Efficiency & Renewable Energy Office of Energy...

  14. Utility Scale PV Perspective on SunShot Progress and Opportunities |

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantity of NaturalDukeWakefield Municipal Gas &SCE-Sessions | Department ofVP ofofUtility Partnerships Program within theDepartment

  15. The Falling Price of Utility-Scale Solar Photovoltaic (PV) Projects |

    Office of Environmental Management (EM)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantity of Natural GasAdjustmentsShirley Ann Jackson About1996HowFOAShowing You theLessons1EnergyU.S. U.S.Management5Security

  16. The Falling Price of Utility-Scale Solar Photovoltaic (PV) Projects |

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on Delicious Rank EERE: Alternative FuelsofProgram: Report15 MeetingDevelopmentDepartment ofTestimony5 Budget

  17. UTILITY-SCALE SOLAR LOAD CONTROL Richard Perez, ASRC

    E-Print Network [OSTI]

    Perez, Richard R.

    was initially devised to function with user-sited PV installations to maximize demand reduction. An efficient load reduction (middle). By shedding load in response to PV output and load requirements the SLC load control (DLC) enhancement. The aggregate of direct load controlled customers constitute a reliable

  18. Water use and supply concerns for utility-scale solar projects in the Southwestern United States.

    SciTech Connect (OSTI)

    Klise, Geoffrey Taylor; Tidwell, Vincent Carroll; Reno, Marissa Devan; Moreland, Barbara D.; Zemlick, Katie M.; Macknick, Jordan

    2013-07-01

    As large utility-scale solar photovoltaic (PV) and concentrating solar power (CSP) facilities are currently being built and planned for locations in the U.S. with the greatest solar resource potential, an understanding of water use for construction and operations is needed as siting tends to target locations with low natural rainfall and where most existing freshwater is already appropriated. Using methods outlined by the Bureau of Land Management (BLM) to determine water used in designated solar energy zones (SEZs) for construction and operations & maintenance, an estimate of water used over the lifetime at the solar power plant is determined and applied to each watershed in six Southwestern states. Results indicate that that PV systems overall use little water, though construction usage is high compared to O&M water use over the lifetime of the facility. Also noted is a transition being made from wet cooled to dry cooled CSP facilities that will significantly reduce operational water use at these facilities. Using these water use factors, estimates of future water demand for current and planned solar development was made. In efforts to determine where water could be a limiting factor in solar energy development, water availability, cost, and projected future competing demands were mapped for the six Southwestern states. Ten watersheds, 9 in California, and one in New Mexico were identified as being of particular concern because of limited water availability.

  19. PV Value®

    Office of Energy Efficiency and Renewable Energy (EERE)

    PV Value® is a free solar PV Valuation tool that answers the question of "How much is solar PV worth" and is compliant with the Uniform Standards of Professional Appraisal Practice. It is available for and being used by real estate appraisers, realtors, homeowners, commercial building owners, home builders, solar installers, green raters, insurance companies, and mortgage lenders in all 50 states along with D.C. and Puerto Rico. PV Value® allows for the calculation of both the cost and income approach to value and was endorsed by the largest appraiser trade organization, the "Appraisal Institute," as an innovative approach to valuing solar assets.

  20. Voltage Impacts of Utility-Scale Distributed Wind

    SciTech Connect (OSTI)

    Allen, A.

    2014-09-01

    Although most utility-scale wind turbines in the United States are added at the transmission level in large wind power plants, distributed wind power offers an alternative that could increase the overall wind power penetration without the need for additional transmission. This report examines the distribution feeder-level voltage issues that can arise when adding utility-scale wind turbines to the distribution system. Four of the Pacific Northwest National Laboratory taxonomy feeders were examined in detail to study the voltage issues associated with adding wind turbines at different distances from the sub-station. General rules relating feeder resistance up to the point of turbine interconnection to the expected maximum voltage change levels were developed. Additional analysis examined line and transformer overvoltage conditions.

  1. Multilevel Converter Topologies for Utility Scale Solar Photovoltaic Power Systems 

    E-Print Network [OSTI]

    Essakiappan, Somasundaram

    2014-04-30

    of ground fault protection systems. Common mode voltages and currents present in high and low power PV systems are analyzed and mitigation strategies such as common mode filter and transformer shielding are proposed to minimize them....

  2. The Utility-Scale Joint-Venture Program

    SciTech Connect (OSTI)

    Gallup, D.R.; Mancini, T.R.

    1994-06-01

    The Department of Energy`s Utility-Scale Joint-Venture (USJV) Program was developed to help industry commercialize dish/engine electric systems. Sandia National Laboratories developed this program and has placed two contracts, one with Science Applications International Corporation`s Energy Projects Division and one with the Cummins Power Generation Company. In this paper we present the designs for the two dish/Stirling systems that are being developed through the USJV Program.

  3. Property:PotentialRuralUtilityScalePVGeneration | Open Energy Information

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on QA:QAsource HistoryPotentialRuralUtilityScalePVGeneration Jump to: navigation, search Property Name

  4. Utility-Scale Solar through the Years | Department of Energy

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on Delicious Rank EERE: Alternative FuelsofProgram: Report1538-1950 TimelineUtility-Scale Solar through the Years

  5. Large-Scale PV Integration Study

    SciTech Connect (OSTI)

    Lu, Shuai; Etingov, Pavel V.; Diao, Ruisheng; Ma, Jian; Samaan, Nader A.; Makarov, Yuri V.; Guo, Xinxin; Hafen, Ryan P.; Jin, Chunlian; Kirkham, Harold; Shlatz, Eugene; Frantzis, Lisa; McClive, Timothy; Karlson, Gregory; Acharya, Dhruv; Ellis, Abraham; Stein, Joshua; Hansen, Clifford; Chadliev, Vladimir; Smart, Michael; Salgo, Richard; Sorensen, Rahn; Allen, Barbara; Idelchik, Boris

    2011-07-29

    This research effort evaluates the impact of large-scale photovoltaic (PV) and distributed generation (DG) output on NV Energy’s electric grid system in southern Nevada. It analyzes the ability of NV Energy’s generation to accommodate increasing amounts of utility-scale PV and DG, and the resulting cost of integrating variable renewable resources. The study was jointly funded by the United States Department of Energy and NV Energy, and conducted by a project team comprised of industry experts and research scientists from Navigant Consulting Inc., Sandia National Laboratories, Pacific Northwest National Laboratory and NV Energy.

  6. Transmission Planning Process and Opportunities for Utility-Scale Solar Engagement within the Western Electricity Coordinating Council (WECC)

    SciTech Connect (OSTI)

    Hein, J.; Hurlbut, D.; Milligan, M.; Coles, L.; Green, B.

    2011-11-01

    This report is a primer for solar developers who wish to engage directly in expediting the regulatory process and removing market barriers related to policy and planning. Market barriers unrelated to technology often limit the expansion of utility-scale solar power, even in areas with exceptional resource potential. Many of these non-technical barriers have to do with policy, regulation, and planning, and hardly ever do they resolve themselves in a timely fashion. In most cases, pre-emptive intervention by interested stakeholders is the easiest way to remove/address such barriers, but it requires knowing how to navigate the institutional waters of the relevant agencies and boards. This report is a primer for solar developers who wish to engage directly in expediting the regulatory process and removing market barriers related to policy and planning. It focuses on the Western Interconnection (WI), primarily because the quality of solar resources in the Southwest makes utility-scale concentrating solar power (CSP) and photovoltaics (PV) economically feasible, and because the relevant institutions have evolved in a way that has opened up opportunities for removing non-technical market barriers. Developers will find in this report a high-level field manual to identify the venues for mitigating and possibly eliminating systemic market obstacles and ensuring that the economic playing field is reasonably level. Project-specific issues such as siting for transmission and generation resources are beyond the scope of this report. Instead, the aim is to examine issues that pervasively affect all utility-scale PV and CSP in the region regardless of where the project may be. While the focus is on the WI, many of the institutions described here also have their counterparts in the Eastern and the Texas interconnections. Specifically, this report suggests a number of critical engagement points relating to generation and transmission planning.

  7. Fsica V 2014 NOTURNO Cdigo Nome PV-1 PV-2 PV-3 PV-4 PV-5 PV-6 P-1 P-2 Mdia Freq. SUB

    E-Print Network [OSTI]

    Ribas, Roberto Vicençotto

    Física V ­ 2014 NOTURNO Código Nome PV-1 PV-2 PV-3 PV-4 PV-5 PV-6 P-1 P-2 Média Freq. SUB 5484455

  8. Support for solar energy: Examining sense of place and utility-scale development in California

    SciTech Connect (OSTI)

    Carlisle, Juliet E.; Kane, Stephanie L.; Solan, David; Joe, Jeffrey C.

    2014-08-20

    As solar costs have declined PV systems have experienced considerable growth since 2003, especially in China, Japan, Germany, and the U.S. Thus, a more nuanced understanding of a particular public's attitudes toward utility-scale solar development, as it arrives in a market and region, is warranted and will likely be instructive for other areas in the world where this type of development will occur in the near future. Using data collected from a 2013 telephone survey (N=594) from the six Southern Californian counties selected based on existing and proposed solar developments and available suitable land, we examine public attitudes toward solar energy and construction of large-scale solar facilities, testing whether attitudes toward such developments are the result of sense of place and attachment to place. Overall, we have mixed results. Place attachment and sense of place fail to produce significant effects except in terms of perceived positive benefits. That is, respondents interpret the change resulting from large-scale solar development in a positive way insofar as perceived positive economic impacts are positively related to support for nearby large-scale construction.

  9. Support for solar energy: Examining sense of place and utility-scale development in California

    DOE Public Access Gateway for Energy & Science Beta (PAGES Beta)

    Carlisle, Juliet E.; Kane, Stephanie L.; Solan, David; Joe, Jeffrey C.

    2014-08-20

    As solar costs have declined PV systems have experienced considerable growth since 2003, especially in China, Japan, Germany, and the U.S. Thus, a more nuanced understanding of a particular public's attitudes toward utility-scale solar development, as it arrives in a market and region, is warranted and will likely be instructive for other areas in the world where this type of development will occur in the near future. Using data collected from a 2013 telephone survey (N=594) from the six Southern Californian counties selected based on existing and proposed solar developments and available suitable land, we examine public attitudes toward solarmore »energy and construction of large-scale solar facilities, testing whether attitudes toward such developments are the result of sense of place and attachment to place. Overall, we have mixed results. Place attachment and sense of place fail to produce significant effects except in terms of perceived positive benefits. That is, respondents interpret the change resulting from large-scale solar development in a positive way insofar as perceived positive economic impacts are positively related to support for nearby large-scale construction.« less

  10. Support for solar energy: Examining sense of place and utility-scale development in California

    SciTech Connect (OSTI)

    Juliet E. Carlisle; Stephanie L. Kane; David Solan; Jeffrey C. Joe

    2015-07-01

    As solar costs have declined PV systems have experienced considerable growth since 2003, especially in China, Japan, Germany, and the U.S. Thus, a more nuanced understanding of a particular public's attitudes toward utility-scale solar development, as it arrives in a market and region, is warranted and will likely be instructive for other areas in the world where this type of development will occur in the near future. Using data collected from a 2013 telephone survey (N = 594) from the six Southern Californian counties selected based on existing and proposed solar developments and available suitable land, we examine public attitudes toward solar energy and construction of large-scale solar facilities, testing whether attitudes toward such developments are the result of sense of place and attachment to place. Overall, we have mixed results. Place attachment and sense of place fail to produce significant effects except in terms of perceived positive benefits. That is, respondents interpret the change resulting from large-scale solar development in a positive way insofar as perceived positive economic impacts are positively related to support for nearby large-scale construction.

  11. Support for solar energy: Examining sense of place and utility-scale development in California

    SciTech Connect (OSTI)

    Carlisle, Juliet E. [Univ. of Idaho, Moscow, ID (United States); Kane, Stephanie L. [Washington State Univ., Pullman, WA (United States); Solan, David [Boise State Univ., Boise, ID (United States); Joe, Jeffrey C. [Idaho National Lab. (INL), Idaho Falls, ID (United States)

    2014-09-01

    As solar costs have declined PV systems have experienced considerable growth since 2003, especially in China, Japan, Germany, and the U.S. Thus, a more nuanced understanding of a particular public's attitudes toward utility-scale solar development, as it arrives in a market and region, is warranted and will likely be instructive for other areas in the world where this type of development will occur in the near future. Using data collected from a 2013 telephone survey (N=594) from the six Southern Californian counties selected based on existing and proposed solar developments and available suitable land, we examine public attitudes toward solar energy and construction of large-scale solar facilities, testing whether attitudes toward such developments are the result of sense of place and attachment to place. Overall, we have mixed results. Place attachment and sense of place fail to produce significant effects except in terms of perceived positive benefits. That is, respondents interpret the change resulting from large-scale solar development in a positive way insofar as perceived positive economic impacts are positively related to support for nearby large-scale construction.

  12. Sandia Energy - PV Value®

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

    and PV industry sales staff. For appraisers, the inputs specific to PV in the Residential Green and Energy Efficient Addendum can be used as inputs to PV Value. Valuing a PV...

  13. Feasibility Study for a Hopi Utility-Scale Wind Project

    SciTech Connect (OSTI)

    Kendrick Lomayestewa

    2011-05-31

    The goal of this project was to investigate the feasibility for the generation of energy from wind and to parallel this work with the development of a tribal utility organization capable of undertaking potential joint ventures in utility businesses and projects on the Hopi reservation. The goal of this project was to investigate the feasibility for the generation of energy from wind and to parallel this work with the development of a tribal utility organization capable of undertaking potential joint ventures in utility businesses and projects on the Hopi reservation. Wind resource assessments were conducted at two study sites on Hopi fee simple lands located south of the city of Winslow. Reports from the study were recently completed and have not been compared to any existing historical wind data nor have they been processed under any wind assessment models to determine the output performance and the project economics of turbines at the wind study sites. Ongoing analysis of the wind data and project modeling will determine the feasibility of a tribal utility-scale wind energy generation.

  14. Initial Economic Analysis of Utility-scale Wind Integration in Hawaii

    Office of Energy Efficiency and Renewable Energy (EERE)

    Summarizes analysis of the economic characteristics of the utility-scale wind configuration project that has been referred to as the “Big Wind” project.

  15. Coordinating Permit Offices and the Development of Utility-Scale Geothermal

    E-Print Network [OSTI]

    Coordinating Permit Offices and the Development of Utility-Scale Geothermal Energy 2013 Geothermal-Scale Geothermal Overview 1. Background and other Analysis 2. Specific Coordinating Permit Office Examples 3 and the Development of Utility-Scale Geothermal Background 2011 Islandbanki Report · Report stated on average

  16. Performance Impact of Solar Gain on Photovoltaic Inverters and Utility-Scale Energy Generation Systems

    E-Print Network [OSTI]

    Performance Impact of Solar Gain on Photovoltaic Inverters and Utility-Scale Energy Generation of solar gain contributions. A novel solar gain utility-scale inverter model has been developed to characterize inverter efficiency with respect to solar resource, general ambient conditions and thermal system

  17. Full Steam Ahead for PV in US Homes?

    SciTech Connect (OSTI)

    Bolinger, Mark A; Barbose, Galen; Wiser, Ryan

    2009-01-15

    In October 2008, the United States Congress extended both the residential and commercial solar investment tax credits (ITCs) for an unprecedented eight years, lifted the $2,000 cap on the residential credit, removed the prohibition on utility use of the commercial credit, and eliminated restrictions on the use of both credits in conjunction with the Alternative Minimum Tax. These significant changes, which apply to systems placed in service on or after January 1, 2009, will increase the value of the solar credits for residential system owners in particular, and are likely--in conjunction with state, local, and utility rebate programs targeting solar--to spur significant growth in residential, commercial, and utility-scale photovoltaic (PV) installations in the years ahead. This article focuses specifically on the residential credit, describing three areas in which removal of the $2,000 cap on the residential ITC will have significant implications for PV rebate program administrators, PV system owners, and the PV industry.

  18. Supported PV module assembly

    SciTech Connect (OSTI)

    Mascolo, Gianluigi; Taggart, David F.; Botkin, Jonathan D.; Edgett, Christopher S.

    2013-10-15

    A supported PV assembly may include a PV module comprising a PV panel and PV module supports including module supports having a support surface supporting the module, a module registration member engaging the PV module to properly position the PV module on the module support, and a mounting element. In some embodiments the PV module registration members engage only the external surfaces of the PV modules at the corners. In some embodiments the assembly includes a wind deflector with ballast secured to a least one of the PV module supports and the wind deflector. An array of the assemblies can be secured to one another at their corners to prevent horizontal separation of the adjacent corners while permitting the PV modules to flex relative to one another so to permit the array of PV modules to follow a contour of the support surface.

  19. NREL/SCE High-Penetration PV Integration Project: Report on Field Demonstration of Advanced Inverter Functionality in Fontana, CA

    SciTech Connect (OSTI)

    Mather, B.

    2014-08-01

    The National Renewable Energy Laboratory/Southern California Edison High-Penetration PV Integration Project is (1) researching the distribution system level impacts of high-penetration photovoltaic (PV) integration, (2) determining mitigation methods to reduce or eliminate those impacts, and (3) seeking to demonstrate these mitigation methods on actual high-penetration PV distribution circuits. This report describes a field demonstration completed during the fall of 2013 on the Fontana, California, study circuit, which includes a total of 4.5 MW of interconnected utility-scale rooftop PV systems. The demonstration included operating a 2-MW PV system at an off-unity power factor that had been determined during previously completed distribution system modeling and PV impact assessment analyses. Data on the distribution circuit and PV system operations were collected during the 2-week demonstration period. This demonstration reinforces the findings of previous laboratory testing that showed that utility-scale PV inverters are capable of operating at off-unity power factor to mitigate PV impacts; however, because of difficulties setting and retaining PV inverter power factor set points during the field demonstration, it was not possible to demonstrate the effectiveness of off-unity power factor operation to mitigate the voltage impacts of high-penetration PV integration. Lessons learned from this field demonstration are presented to inform future field demonstration efforts.

  20. PV String to 3-Phase Inverter with Highest Voltage Capabilities, Highest Efficiency and 25 Year Lifetime: Final Technical Report, November 7, 2011 - November 6, 2012

    SciTech Connect (OSTI)

    West, R.

    2012-12-01

    Final report for Renewable Power Conversion. The overall objective of this project was to develop a prototype PV inverter which enables a new utility-scale PV system approach where the cost, performance, reliability and safety benefits of this new approach have the potential to make all others obsolete.

  1. Initial Economic Analysis of Utility-Scale Wind Integration in Hawaii

    SciTech Connect (OSTI)

    Not Available

    2012-03-01

    This report summarizes an analysis, conducted by the National Renewable Energy Laboratory (NREL) in May 2010, of the economic characteristics of a particular utility-scale wind configuration project that has been referred to as the 'Big Wind' project.

  2. Energy 101: Solar PV

    SciTech Connect (OSTI)

    2011-01-01

    Solar photovoltaic (PV) systems can generate clean, cost-effective power anywhere the sun shines. This video shows how a PV panel converts the energy of the sun into renewable electricity to power homes and businesses.

  3. Energy 101: Solar PV

    Office of Energy Efficiency and Renewable Energy (EERE)

    Solar photovoltaic (PV) systems can generate clean, cost-effective power anywhere the sun shines. This video shows how a PV panel converts the energy of the sun into renewable electricity to power...

  4. Energy 101: Solar PV

    ScienceCinema (OSTI)

    None

    2013-05-29

    Solar photovoltaic (PV) systems can generate clean, cost-effective power anywhere the sun shines. This video shows how a PV panel converts the energy of the sun into renewable electricity to power homes and businesses.

  5. Continuing Developments in PV Risk Management: Strategies, Solutions, and Implications

    SciTech Connect (OSTI)

    Lowder, T.; Mendelsohn, M.; Speer, B.; Hill, R.

    2013-02-01

    As the PV industry matures, successful risk management practices will become more imperative to ensure investor confidence, control costs, and facilitate further growth. This report discusses several key aspects of risk management during the commercial- and utility-scale project life cycle, from identification of risks, to the process of mitigating and allocating those risks among project parties, to transferring those risks through insurance. The report also explores novel techniques in PV risk management, options to offload risks onto the capital markets, and innovative insurance policies (namely warranty policies) that address risks unique to the PV sector. One of the major justifications for robust risk management in the PV industry is the cost-reduction opportunities it affords. If the PV industry can demonstrate the capability to successfully manage its risks, thereby inspiring confidence in financiers, it may be able to obtain a lower cost of capital in future transactions. A lower cost of capital translates to a lower cost of energy, which will in turn enhance PV?s competitiveness at a time when it will have to rely less on subsidies to support its market penetration.

  6. Stabilized PV system

    DOE Patents [OSTI]

    Dinwoodie, Thomas L. (Piedmont, CA)

    2002-12-17

    A stabilized PV system comprises an array of photovoltaic (PV) assemblies mounted to a support surface. Each PV assembly comprises a PV module and a support assembly securing the PV module to a position overlying the support surface. The array of modules is circumscribed by a continuous, belt-like perimeter assembly. Cross strapping, extending above, below or through the array, or some combination of above, below and through the array, secures a first position along the perimeter assembly to at least a second position along the perimeter assembly thereby stabilizing the array against wind uplift forces. The first and second positions may be on opposite sides on the array.

  7. Characterizing Inflow Conditions Across the Rotor Disk of a Utility-Scale Wind Turbine (Poster)

    SciTech Connect (OSTI)

    Clifton, A.; Lundquist, J. K.; Kelley, N.; Scott, G.; Jager, D.; Schreck, S.

    2012-01-01

    Multi-megawatt utility-scale wind turbines operate in a turbulent, thermally-driven atmosphere where wind speed and air temperature vary with height. Turbines convert the wind's momentum into electrical power, and so changes in the atmosphere across the rotor disk influence the power produced by the turbine. To characterize the inflow into utility scale turbines at the National Wind Technology Center (NWTC) near Boulder, Colorado, NREL recently built two 135-meter inflow monitoring towers. This poster introduces the towers and the measurements that are made, showing some of the data obtained in the first few months of operation in 2011.

  8. Fire resistant PV shingle assembly

    SciTech Connect (OSTI)

    Lenox, Carl J.

    2012-10-02

    A fire resistant PV shingle assembly includes a PV assembly, including PV body, a fire shield and a connection member connecting the fire shield below the PV body, and a support and inter-engagement assembly. The support and inter-engagement assembly is mounted to the PV assembly and comprises a vertical support element, supporting the PV assembly above a support surface, an upper interlock element, positioned towards the upper PV edge, and a lower interlock element, positioned towards the lower PV edge. The upper interlock element of one PV shingle assembly is inter-engageable with the lower interlock element of an adjacent PV shingle assembly. In some embodiments the PV shingle assembly may comprise a ventilation path below the PV body. The PV body may be slidably mounted to the connection member to facilitate removal of the PV body.

  9. Utilizing scale-free networks to support the search for scientific publications

    E-Print Network [OSTI]

    Theune, Mariët

    Utilizing scale-free networks to support the search for scientific publications Claudia Hauff Human@iws.cs.uni-magdeburg.de ABSTRACT When searching for scientific publications, users today of- ten rely on search engines such as Yahoo.com. Whereas searching for publications whose titles are known is consid- ered to be an easy task

  10. 3-Port Single-Stage PV & Battery Converter Improves Efficiency and Cost in Combined PV/Battery Systems

    SciTech Connect (OSTI)

    Bundschuh, Paul

    2013-03-23

    Due to impressive cost reductions in recent years, photovoltaic (PV) generation is now able to produce electricity at highly competitive prices, but PV’s inherent intermittency reduces the potential value of this energy. The integration of battery storage with PV will be transformational by increasing the value of solar. Utility scale systems will benefit by firming intermittency including PV ramp smoothing, grid support and load shifting, allowing PV to compete directly with conventional generation. For distributed grid-tied PV adding storage will reduce peak demand utility charges, as well as providing backup power during power grid failures. The largest long term impact of combined PV and battery systems may be for delivering reliable off-grid power to the billions of individuals globally without access to conventional power grids, or for billions more that suffer from daily power outages. PV module costs no longer dominate installed PV system costs. Balance-of-System (BOS) costs including the PV inverter and installation now contribute the majority of installed system costs. Battery costs are also dropping faster than installation and battery power converter systems. In each of these separate systems power converters have become a bottleneck for efficiency, cost and reliability. These bottlenecks are compounded in hybrid power conversion systems that combine separate PV and battery converters. Hybrid power conversion systems have required multiple power converters hardware units and multiple power conversion steps adding to efficiency losses, product and installation costs, and reliability issues. Ideal Power Converters has developed and patented a completely new theory of operation for electronic power converters using its indirect EnergyPacket Switching™ topology. It has established successful power converter products for both PV and battery systems, and its 3-Port Hybrid Converter is the first product to exploit the topology’s capability for the industry’s first single-stage multi-port hybrid power converter. This unique low cost approach eliminates the hybrid power conversion bottlenecks when integrating batteries into PV systems. As result this product will significantly accelerate market adoption of these systems.

  11. Testing, Manufacturing, and Component Development Projects for Utility-Scale and Distributed Wind Energy, Fiscal Years 2006–2014

    SciTech Connect (OSTI)

    2014-04-01

    This report covers the Wind and Water Power Technologies Office's Testing, Manufacturing, and Component Development Projects for Utility-Scale and Distributed Wind Energy from 2006 to 2014.

  12. PV PLANNER A DESIGN AND

    E-Print Network [OSTI]

    Delaware, University of

    PV PLANNER A DESIGN AND ANALYSIS TOOL FOR BUILDING INTEGRATED SOLAR ELECTRIC SYSTEMS FINAL Center for Energy and Environmental Policy University of Delaware December 2006 #12;#12;PV...............................................................................................................................1 1.2 PV Planner: An Overview

  13. Utility Scale Wind Turbines on a Grid Connected Island Mohit Dua, Anthony L. Rogers, James F. Manwell,

    E-Print Network [OSTI]

    Massachusetts at Amherst, University of

    Utility Scale Wind Turbines on a Grid Connected Island Mohit Dua, Anthony L. Rogers, James F utility scale wind turbines on Fox Islands, located 12 miles from the coast of Maine in the United States of electricity itself. Three locations are analyzed in detail as potential sites for wind turbine installations

  14. Impact of Utility-Scale Distributed Wind on Transmission-Level System Operations

    SciTech Connect (OSTI)

    Brancucci Martinez-Anido, C.; Hodge, B. M.

    2014-09-01

    This report presents a new renewable integration study that aims to assess the potential for adding distributed wind to the current power system with minimal or no upgrades to the distribution or transmission electricity systems. It investigates the impacts of integrating large amounts of utility-scale distributed wind power on bulk system operations by performing a case study on the power system of the Independent System Operator-New England (ISO-NE).

  15. Research of PV Application on

    E-Print Network [OSTI]

    Netoff, Theoden

    Research of PV Application on UMore Park Community Design Arch 8563:Getting Blow the Surface Xiaoyu Liu #12;Getting Blow Surface: PV opportunity on the UMore Park 2 Research of PV application on U More community on the aspect of PV application. There are four parts in this report: (1) Introduction of UMore

  16. Integrating High Penetrations of PV into Southern California: Year 2 Project Update; Preprint

    SciTech Connect (OSTI)

    Mather, B.; Neal, R.

    2012-08-01

    Southern California Edison (SCE) is well into a five-year project to install a total of 500 MW of distributed photovoltaic (PV) energy within its utility service territory. Typical installations to date are 1-3 MW peak rooftop PV systems that interconnect to medium-voltage urban distribution circuits or larger (5 MW peak) ground-mounted systems that connect to medium-voltage rural distribution circuits. Some of the PV system interconnections have resulted in distribution circuits that have a significant amount of PV generation compared to customer load, resulting in high-penetration PV integration scenarios. The National Renewable Energy Laboratory (NREL) and SCE have assembled a team of distribution modeling, resource assessment, and PV inverter technology experts in order to investigate a few of the high-penetration PV distribution circuits. Currently, the distribution circuits being studied include an urban circuit with a PV penetration of approximately 46% and a rural circuit with a PV penetration of approximately 60%. In both cases, power flow on the circuit reverses direction, compared to traditional circuit operation, during periods of high PV power production and low circuit loading. Research efforts during year two of the five-year project were focused on modeling the distribution system level impacts of high-penetration PV integrations, the development and installation of distribution circuit data acquisition equipment appropriate for quantifying the impacts of high-penetration PV integrations, and investigating high-penetration PV impact mitigation strategies. This paper outlines these research efforts and discusses the following activities in more detail: the development of a quasi-static time-series test feeder for evaluating high-penetration PV integration modeling tools; the advanced inverter functions being investigated for deployment in the project's field demonstration and a power hardware-in-loop test of a 500-kW PV inverter implementing a limited set of advanced inverter functions.

  17. Grid integrated distributed PV (GridPV).

    SciTech Connect (OSTI)

    Reno, Matthew J.; Coogan, Kyle

    2013-08-01

    This manual provides the documentation of the MATLAB toolbox of functions for using OpenDSS to simulate the impact of solar energy on the distribution system. The majority of the functions are useful for interfacing OpenDSS and MATLAB, and they are of generic use for commanding OpenDSS from MATLAB and retrieving information from simulations. A set of functions is also included for modeling PV plant output and setting up the PV plant in the OpenDSS simulation. The toolbox contains functions for modeling the OpenDSS distribution feeder on satellite images with GPS coordinates. Finally, example simulations functions are included to show potential uses of the toolbox functions. Each function in the toolbox is documented with the function use syntax, full description, function input list, function output list, example use, and example output.

  18. Final Technical Report Laramie County Community College: Utility-Scale Wind Energy Technology

    SciTech Connect (OSTI)

    Douglas P. Cook

    2012-05-22

    The Utility-Scale Wind Energy Technology U.S. Department of Energy (DOE) grant EE0000538, provided a way ahead for Laramie County Community College (LCCC) to increase educational and training opportunities for students seeking an Associate of Applied Science (AAS) or Associate of Science (AS) degree in Wind Energy Technology. The DOE grant enabled LCCC to program, schedule, and successfully operate multiple wind energy technology cohorts of up to 20-14 students per cohort simultaneously. As of this report, LCCC currently runs four cohorts. In addition, the DOE grant allowed LCCC to procure specialized LABVOLT electronic equipment that directly supports is wind energy technology curriculum.

  19. Utility-Scale Smart Meter Deployments, Plans & Proposals | Department of

    Office of Environmental Management (EM)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantity of Natural GasAdjustmentsShirley Ann Jackson About1996HowFOAShowing YouNeedofDepartment ofDeployment |Energy Utility-Scale

  20. Four Corners Wind Resource Center Webinar: Building Utility-Scale Wind: Permitting and Regulation Lessons for County Decision-Makers

    Office of Energy Efficiency and Renewable Energy (EERE)

    The Four Corners Wind Resource Center will host this webinar exploring lessons learned in the permitting of utility-scale wind projects and the development of ordinances and regulations for...

  1. Advanced Inverter Technology for High Penetration Levels of PV Generation in Distribution Systems

    SciTech Connect (OSTI)

    Schauder, C.

    2014-03-01

    This subcontract report was completed under the auspices of the NREL/SCE High-Penetration Photovoltaic (PV) Integration Project, which is co-funded by the U.S. Department of Energy (DOE) Office of Energy Efficiency and Renewable Energy (EERE) and the California Solar Initiative (CSI) Research, Development, Demonstration, and Deployment (RD&D) program funded by the California Public Utility Commission (CPUC) and managed by Itron. This project is focused on modeling, quantifying, and mitigating the impacts of large utility-scale PV systems (generally 1-5 MW in size) that are interconnected to the distribution system. This report discusses the concerns utilities have when interconnecting large PV systems that interconnect using PV inverters (a specific application of frequency converters). Additionally, a number of capabilities of PV inverters are described that could be implemented to mitigate the distribution system-level impacts of high-penetration PV integration. Finally, the main issues that need to be addressed to ease the interconnection of large PV systems to the distribution system are presented.

  2. Open PV Project: Unlocking PV Installation Data (Brochure)

    SciTech Connect (OSTI)

    Not Available

    2012-04-01

    This brochure summarizes the Open PV Project, a collaborative effort of government, industry, and the public to compile a comprehensive database of PV installations in the United States. The brochure outlines the purpose and history of the project as well as the main capabilities and benefits of the online Open PV tool. The brochure also introduces how features of the tool are used, and it describes the sources and characteristics of Open PV's data and data collection processes.

  3. PV SOLAR RESOURCE GUIDE FOR RURAL DISTRIBUTORS IN TN Introduction

    E-Print Network [OSTI]

    McCarthy, John F.

    April 2013 Asa Roy PV SOLAR RESOURCE GUIDE FOR RURAL DISTRIBUTORS IN TN #12;1 Introduction experience with solar power. Research and interviews with the Tennessee's Green Power Providers Program, Green Power Providers Coordinators at several urban distributors, and solar installers in Tennessee

  4. Ukiah Utilities- PV Buydown Program

    Broader source: Energy.gov [DOE]

    Through Ukiah Utilities’ PV Buydown Program, residential and commercial customers are eligible for a $1.40-per-watt AC rebate on qualifying grid-connected PV systems up to a maximum system size of...

  5. Sandia Energy - PV Systems Reliability

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

    Home Stationary Power Energy Conversion Efficiency Solar Energy Photovoltaics PV Systems Reliability PV Systems ReliabilityCoryne Tasca2015-05-08T03:40:54+00:00 Sandia...

  6. Utility-Scale Power Router: Dynamic Control of Grid Assets Using Direct AC Converter Cells

    SciTech Connect (OSTI)

    2010-09-01

    ADEPT Project: Georgia Tech is developing a cost-effective, utility-scale power router that uses an enhanced transformer to more efficiently direct power on the grid. Existing power routing technologies are too expensive for widespread use, but the ability to route grid power to match real-time demand and power outages would significantly reduce energy costs for utilities, municipalities, and consumers. Georgia Tech is adding a power converter to an existing grid transformer to better control power flows at about 1/10th the cost of existing power routing solutions. Transformers convert the high-voltage electricity that is transmitted through the grid into the low-voltage electricity that is used by homes and businesses. The added converter uses fewer steps to convert some types of power and eliminates unnecessary power storage, among other improvements. The enhanced transformer is more efficient, and it would still work even if the converter fails, ensuring grid reliability.

  7. Solar PV and Glare Factsheet

    Broader source: Energy.gov [DOE]

    A common misconception about solar photovoltaic (PV) panels is that they inherently cause or create "too much" glare, posing a nuisance to neighbors and a safety risk for pilots. While solar PV systems can produce glare, light absorption - rather than reflection - is central to the function of solar PV panels. This fact sheet describes the basic issues surrounding glare from solar PV panels, the new Federal Aviation Administration guidance, and the implications for local governments.

  8. Testing for PV Reliability (Presentation)

    SciTech Connect (OSTI)

    Kurtz, S.; Bansal, S.

    2014-09-01

    The DOE SUNSHOT workshop is seeking input from the community about PV reliability and how the DOE might address gaps in understanding. This presentation describes the types of testing that are needed for PV reliability and introduces a discussion to identify gaps in our understanding of PV reliability testing.

  9. Hypermodular Self-Assembling Space Solar Power -- Design Option for Mid-Term GEO Utility-Scale Power Plants

    E-Print Network [OSTI]

    Leitgab, Martin

    2013-01-01

    This paper presents a design for scaleable space solar power systems based on free-flying reflectors and module self-assembly. Lower system cost of utility-scale space solar power is achieved by design independence of yet-to-be-built in-space assembly or transportation infrastructure. Using current and expected near-term technology, this study describe a design for mid-term utility-scale power plants in geosynchronous orbits. High-level economic considerations in the context of current and expected future launch costs are given as well.

  10. Logistics, Costs, and GHG Impacts of Utility Scale Cofiring with 20% Biomass

    SciTech Connect (OSTI)

    Boardman, Richard D.; Cafferty, Kara G.; Nichol, Corrie; Searcy, Erin M.; Westover, Tyler; Wood, Richard; Bearden, Mark D.; Cabe, James E.; Drennan, Corinne; Jones, Susanne B.; Male, Jonathan L.; Muntean, George G.; Snowden-Swan, Lesley J.; Widder, Sarah H.

    2014-07-22

    This report presents the results of an evaluation of utility-scale biomass cofiring in large pulverized coal power plants. The purpose of this evaluation is to assess the cost and greenhouse gas reduction benefits of substituting relatively high volumes of biomass in coal. Two scenarios for cofiring up to 20% biomass with coal (on a lower heating value basis) are presented; (1) woody biomass in central Alabama where Southern Pine is currently produced for the wood products and paper industries, and (2) purpose-grown switchgrass in the Ohio River Valley. These examples are representative of regions where renewable biomass growth rates are high in correspondence with major U.S. heartland power production. While these scenarios may provide a realistic reference for comparing the relative benefits of using a high volume of biomass for power production, this evaluation is not intended to be an analysis of policies concerning renewable portfolio standards or the optimal use of biomass for energy production in the U.S.

  11. Coordinating Permit Offices and the Development of Utility-Scale Geothermal Energy (Presentation)

    SciTech Connect (OSTI)

    Levine, A.; Young, K.; Witherbee, K.

    2013-10-01

    Permitting is a major component of the geothermal development process. Better coordination across government agencies could reduce uncertainty of the process and the actual time of permitting. This presentation highlights various forms of coordinating permit offices at the state and federal level in the western United States, discusses inefficiencies and mitigation techniques for permitting natural resource projects, analyzes whether various approaches are easily adaptable to utility-scale geothermal development, and addresses advantages and challenges for coordinating permit offices. Key successful strategies identified include: 1. Flexibility in implementing the approach (i.e. less statutory requirements for the approach); 2. Less dependence on a final environmental review for information sharing and permit coordination; 3. State and federal partnerships developed through memorandum of understanding to define roles and share data and/or developer information. A few of the most helpful techniques include: 1. A central point of contact for the developer to ask questions surrounding the project; 2. Pre-application meetings to assist the developer in identifying all of the permits, regulatory approvals, and associated information or data required; 3. A permit schedule or timeline to set expectations for the developer and agencies; 4. Consolidating the public notice, comment, and hearing period into fewer hearings held concurrently.

  12. Characterizing Shading Losses on Partially Shaded PV Systems (Presentation)

    SciTech Connect (OSTI)

    Deline, C.

    2010-09-23

    Presentation on shaded PV power loss, practical issues with modeling shaded PV, and methods of implementing partially shaded PV modeling.

  13. Berkeley Program Offers New Option for Financing Residential PV Systems

    E-Print Network [OSTI]

    Bolinger, Mark A

    2009-01-01

    Vehicle for Residential PV Installations: Opportunities andfor Financing Residential PV Systems Mark Bolinger, Lawrencefor residential photovoltaic (PV) systems. Though financing

  14. Residential, Commercial, and Utility-Scale Photovoltaic (PV) System Prices in the United States: Current Drivers and Cost-Reduction Opportunities

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantity ofkandz-cm11 Outreach Home RoomPreservation of Fe(II) byMultiday Production ofAdministration2,05,propanepropane

  15. Utility-Scale Solar 2012: An Empirical Analysis of Project Cost, Performance, and Pricing Trends in the United States

    E-Print Network [OSTI]

    Bolinger, Mark

    2014-01-01

    solar economics analyses – but also operating costs, capacity factors, and power purchase agreement (“solar power can be profitably sold through a long-term power purchase agreement (“Power Purchase Agreement (“PPA”) Prices The cost of installing, operating, and maintaining a utility-scale solar

  16. Utility-Scale Future, Continuum Magazine: Clean Energy Innovation at NREL, Spring 2011, Issue 1 Vol. 1

    SciTech Connect (OSTI)

    Not Available

    2011-08-01

    This quarterly magazine is dedicated to stepping beyond the technical journals to reveal NREL's vital work in a real-world context for our stakeholders. Continuum provides insights into the latest and most impactful clean energy innovations, while spotlighting those talented researchers and unique facilities that make it all happen. This edition focuses on creating a utility-scale future.

  17. Full Steam Ahead for PV in US Homes?

    E-Print Network [OSTI]

    Bolinger, Mark A

    2009-01-01

    Full Steam Ahead for PV in US Homes? Mark Bolinger, Galenutility-scale photovoltaic (PV) installations in the yearsimplications for PV rebate program administrators, PV system

  18. Outdoor PV Degradation Comparison

    SciTech Connect (OSTI)

    Jordan, D. C.; Smith, R. M.; Osterwald, C. R.; Gelak, E.; Kurtz, S. R.

    2011-02-01

    As photovoltaic (PV) penetration of the power grid increases, it becomes vital to know how decreased power output; may affect cost over time. In order to predict power delivery, the decline or degradation rates must be determined; accurately. At the Performance and Energy Rating Testbed (PERT) at the Outdoor Test Facility (OTF) at the; National Renewable Energy Laboratory (NREL) more than 40 modules from more than 10 different manufacturers; were compared for their long-term outdoor stability. Because it can accommodate a large variety of modules in a; limited footprint the PERT system is ideally suited to compare modules side-by-side under the same conditions.

  19. Sandia Energy - PV Publications

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantity ofkandz-cm11 Outreach Home RoomPreservation of Fe(II)Geothermal Energy &WaterNew CREWOnline Abstracts andPV

  20. High-Penetration PV Deployment in the Arizona Public Service System, Phase 1 Update: Preprint

    SciTech Connect (OSTI)

    Hambrick, J.; Narang, D.

    2012-06-01

    In an effort to better understand the impacts of high penetrations of photovoltaic generators on distribution systems, Arizona Public Service and its partners have begun work on a multi-year project to develop the tools and knowledge base needed to safely and reliably integrate high penetrations of utility- and residential-scale photovoltaics (PV). Building upon the APS Community Power Project -- Flagstaff Pilot, this project will analyze the impact of PV on a representative feeder in northeast Flagstaff. To quantify and catalog the effects of the estimated 1.3 MW of PV that will be installed on the feeder (both smaller units at homes as well as large, centrally located systems), high-speed weather and electrical data acquisition systems and digital 'smart' meters are being designed and installed to facilitate monitoring and to build and validate comprehensive, high-resolution models of the distribution system. These models will be used to analyze the impacts of the PV on distribution circuit protection systems (including anti-islanding), predict voltage regulation and phase balance issues, and develop volt/var control schemes. This paper continues from a paper presented at the 2011 IEEE PVSC conference that introduces the project and describes some of the preliminary consideration, as well as project plans and early results. This paper gives a status update of the project and presents selected results from Phase 2 of the project. It discusses baseline feeder modeling, load allocation, data acquisition, utility-scale PV integration, preliminary model validation, and plans for future phases.

  1. Federal and State Structures to Support Financing Utility-Scale Solar Projects and the Business Models Designed to Utilize Them

    SciTech Connect (OSTI)

    Mendelsohn, M.; Kreycik, C.

    2012-04-01

    Utility-scale solar projects have grown rapidly in number and size over the last few years, driven in part by strong renewable portfolio standards (RPS) and federal incentives designed to stimulate investment in renewable energy technologies. This report provides an overview of such policies, as well as the project financial structures they enable, based on industry literature, publicly available data, and questionnaires conducted by the National Renewable Energy Laboratory (NREL).

  2. NREL/SCE High Penetration PV Integration Project: FY13 Annual Report

    SciTech Connect (OSTI)

    Mather, B. A.; Shah, S.; Norris, B. L.; Dise, J. H.; Yu, L.; Paradis, D.; Katiraei, F.; Seguin, R.; Costyk, D.; Woyak, J.; Jung, J.; Russell, K.; Broadwater, R.

    2014-06-01

    In 2010, the National Renewable Energy Laboratory (NREL), Southern California Edison (SCE), Quanta Technology, Satcon Technology Corporation, Electrical Distribution Design (EDD), and Clean Power Research (CPR) teamed to analyze the impacts of high penetration levels of photovoltaic (PV) systems interconnected onto the SCE distribution system. This project was designed specifically to benefit from the experience that SCE and the project team would gain during the installation of 500 megawatts (MW) of utility-scale PV systems (with 1-5 MW typical ratings) starting in 2010 and completing in 2015 within SCE's service territory through a program approved by the California Public Utility Commission (CPUC). This report provides the findings of the research completed under the project to date.

  3. Davis PV plant operation and maintenance manual

    SciTech Connect (OSTI)

    1994-09-01

    This operation and maintenance manual contains the information necessary to run the Photovoltaics for Utility Scale Applications (PVUSA) test facility in Davis, California. References to more specific information available in drawings, data sheets, files, or vendor manuals are included. The PVUSA is a national cooperative research and demonstration program formed in 1987 to assess the potential of utility scale photovoltaic systems.

  4. PV ENERGY ROI Tracks Efficiency Gains

    E-Print Network [OSTI]

    PV ENERGY ROI Tracks Efficiency Gains the state of PV today E nergy payback time (EPBT) is the time it takes for a photovoltaic (PV) system to produce all the energy used through- out its life cycle. A short, current com- mercial PV technologies "pay back" the energy used in only six months to two years (depending

  5. Rooftop Solar PV & Firefighter Safety

    Office of Energy Efficiency and Renewable Energy (EERE)

    Solar photovoltaic (PV) installations have experienced significant growth in recent years. Due to technological innovations and cost reductions, solar energy is a viable option for an increasing number of residences and businesses across the United States. Rooftop solar is considered safe – to date there has been no documented case of death from the electric shock, chemical burn or conventional fire caused by a solar panel; however, as more buildings install rooftop solar systems, the likelihood increases that fires will occur on buildings with solar, making it critical for firefighters to receive comprehensive solar education and training. This SolarOPs fact sheet gives a brief overview of typical solar PV installations, addresses the major hazards and risks to firefighters, discusses fire safety in Germany (the country with the most installed solar PV per capita), and suggests recommendations and resources to ensure that first responders are prepared to fight fires on homes and buildings with rooftop solar PV.

  6. Turlock Irrigation District- PV Rebate

    Office of Energy Efficiency and Renewable Energy (EERE)

    Turlock Irrigation District (TID) offers an incentive program to their customers who install solar photovoltaic (PV) systems. In keeping with the terms of the California Solar Initiative, the inc...

  7. Scenes for Chancellors Report- PV 

    E-Print Network [OSTI]

    Unknown

    2011-08-17

    Syringopeptin (syp) and syringomycin (syr) are major necrosis-inducing lipodepsipeptide phytotoxins produced by P. syringae pv. syringae. This report demonstrates that syringopeptin production is activated by plant signal ...

  8. Construction of Ag Building- PV 

    E-Print Network [OSTI]

    Unknown

    2011-08-17

    Pseudomonas syringae pv. syringae strain B728a (P.s.s. B728a) is an economically significant plant pathogen that is capable of successful epiphytic colonization of leaf surfaces. Although the virulence factors associated ...

  9. Pressure-equalizing PV assembly and method

    DOE Patents [OSTI]

    Dinwoodie, Thomas L.

    2004-10-26

    Each PV assembly of an array of PV assemblies comprises a base, a PV module and a support assembly securing the PV module to a position overlying the upper surface of the base. Vents are formed through the base. A pressure equalization path extends from the outer surface of the PV module, past the PV module, to and through at least one of the vents, and to the lower surface of the base to help reduce wind uplift forces on the PV assembly. The PV assemblies may be interengaged, such as by interengaging the bases of adjacent PV assemblies. The base may include a main portion and a cover and the bases of adjacent PV assemblies may be interengaged by securing the covers of adjacent bases together.

  10. PV module mounting method and mounting assembly

    DOE Patents [OSTI]

    Lenox, Carl J.S.; Johnson, Kurt M.

    2013-04-23

    A method for mounting PV modules to a deck includes selecting PV module layout pattern so that adjacent PV module edges are spaced apart. PV mounting and support assemblies are secured to the deck according to the layout pattern using fasteners extending into the deck. The PV modules are placed on the PV mounting and support assemblies. Retaining elements are located over and secured against the upper peripheral edge surfaces of the PV modules so to secure them to the deck with the peripheral edges of the PV modules spaced apart from the deck. In some examples a PV module mounting assembly, for use on a shingled deck, comprises flashing, a base mountable on the flashing, a deck-penetrating fastener engageable with the base and securable to the deck so to secure the flashing and the base to the shingled deck, and PV module mounting hardware securable to the base.

  11. Connecticut Rooftop Solar PV Permitting Guide

    Broader source: Energy.gov [DOE]

    The Connecticut Rooftop Solar PV Permitting Guide is a compilation of best practices and resources for solar PV permitting. The guide includes a summary of current codes and regulations affecting solar PV, best practices for streamlining the municipal permitting process, and tools to assist municipalities in creating a streamlined permit process for residential solar PV. Resources include a solar PV permit application, a structural review worksheet, an inspection checklist, and a model solar zoning ordinance.

  12. PSCAD Modules Representing PV Generator

    SciTech Connect (OSTI)

    Muljadi, E.; Singh, M.; Gevorgian, V.

    2013-08-01

    Photovoltaic power plants (PVPs) have been growing in size, and the installation time is very short. With the cost of photovoltaic (PV) panels dropping in recent years, it can be predicted that in the next 10 years the contribution of PVPs to the total number of renewable energy power plants will grow significantly. In this project, the National Renewable Energy Laboratory (NREL) developed a dynamic modeling of the modules to be used as building blocks to develop simulation models of single PV arrays, expanded to include Maximum Power Point Tracker (MPPT), expanded to include PV inverter, or expanded to cover an entire PVP. The focus of the investigation and complexity of the simulation determines the components that must be included in the simulation. The development of the PV inverter was covered in detail, including the control diagrams. Both the current-regulated voltage source inverter and the current-regulated current source inverter were developed in PSCAD. Various operations of the PV inverters were simulated under normal and abnormal conditions. Symmetrical and unsymmetrical faults were simulated, presented, and discussed. Both the three-phase analysis and the symmetrical component analysis were included to clarify the understanding of unsymmetrical faults. The dynamic model validation was based on the testing data provided by SCE. Testing was conducted at SCE with the focus on the grid interface behavior of the PV inverter under different faults and disturbances. The dynamic model validation covers both the symmetrical and unsymmetrical faults.

  13. PV technology differences and discrepancies in modelling between...

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

    sensitivity and limitations of present and alternative PV models The sensitivity and limitations of present and alternative PV models Steve Ransome - Independent PV Consultant,...

  14. Federal Tax Incentives for PV: Potential Implications for Program Design

    E-Print Network [OSTI]

    Wiser, Ryan; Bolinger, Mark

    2006-01-01

    Forthcoming. “EPAct 2005’s PV Tax Credits: What Are TheyAssumptions • Installed PV system costs exhibit economies ofFederal Tax Incentives for PV Potential Implications for

  15. Comparison of Pyranometers vs. PV Reference Cells for Evaluation of PV Array Performance

    SciTech Connect (OSTI)

    Dunn, L.; Gostein, M.; Emery, K.

    2012-09-01

    As the photovoltaics (PV) industry has grown, the need for accurately monitoring the solar resource of PV power plants has increased. Historically, the PV industry has relied on thermopile pyranometers for irradiance measurements, and a large body of historical irradiance data taken with pyranometers exists. However, interest in PV reference devices is increasing. In this paper, we discuss why PV reference devices are better suited for PV applications, and estimate the typical uncertainties in irradiance measurements made with both pyranometers and PV reference devices. We assert that the quantity of interest in monitoring a PV power plant is the equivalent irradiance under the IEC 60904-3 reference solar spectrum that would produce the same electrical response in the PV array as the incident solar radiation. For PV-plant monitoring applications, we find the uncertainties in irradiance measurements of this type to be on the order of +/-5% for thermopile pyranometers and +/-2.4% for PV reference devices.

  16. Urban Economics

    E-Print Network [OSTI]

    Quigley, John M.

    2006-01-01

    property taxation regional economics residential segregationexternalities urban economics urban production externalitiesproperty taxation regional economics residential segregation

  17. Webinar: Evaluating Roof Structures for Solar PV

    Office of Energy Efficiency and Renewable Energy (EERE)

    This webinar provides an overview of Connecticut's Structural Review Worksheet for Residential Rooftop Solar PV Systems. The webinar explains how the worksheet should be used and common concerns with wind and dead loads for rooftop solar PV.

  18. City of Healdsburg- PV Incentive Program

    Broader source: Energy.gov [DOE]

    Through the City of Healdsburg's PV Buy-down Program, residential and commercial customers are eligible for rebate on qualifying grid-connected PV systems. In keeping with SB1, (the California...

  19. PV prospects: thinPV prospects: thin--film cellsfilm cells Si cell costs

    E-Print Network [OSTI]

    Pulfrey, David L.

    1 PV prospects: thinPV prospects: thin--film cellsfilm cells LECTURE 8 · Si cell costs · optimizing://www.solarbuzz.com/Moduleprices.htm #12;6 Cost of PV modulesCost of PV modules The lowest retail price for a multicrystalline silicon

  20. PV Fact Sheets Argument B1Some people state that "The external costs of PV electricity

    E-Print Network [OSTI]

    PV Fact Sheets Argument B1Some people state that "The external costs of PV electricity is much shows the external costs for current PV systems at Southern and Central European locations in addition to other costs". For current PV installations in South-Europe the external costs are about 0.15 per k

  1. November 21, 2000 PV Lesson Plan 3 PV Array Generating Electricity

    E-Print Network [OSTI]

    Oregon, University of

    November 21, 2000 PV Lesson Plan 3 ­ PV Array Generating Electricity Prepared for the Oregon in Arrays: Solar Cells Generating Electricity Lesson Plan Content: In this lesson, students will learn about electricity. Objectives: Students will learn to use a tool called PV WATTS to calculate the output of PV

  2. PV Odds & Ends by John Wiles

    E-Print Network [OSTI]

    Johnson, Eric E.

    PV Odds & Ends by John Wiles Sponsored by the U.S. Department of Energy There are two primary wiring methods for connecting PV modules together--using exposed single-conductor cables, and using conduits. Each dictates a different grounding method, but in either case, PV modules must always

  3. INTEGRATION OF PV IN DEMAND RESPONSE

    E-Print Network [OSTI]

    Perez, Richard R.

    INTEGRATION OF PV IN DEMAND RESPONSE PROGRAMS Prepared by Richard Perez et al. NREL subcontract the case that distributed PV generation deserves a substantial portion of the credit allotted to demand response programs. This is because PV generation acts as a catalyst to demand response, markedly enhancing

  4. Solar Resource and PV Systems Performance

    E-Print Network [OSTI]

    Solar Resource and PV Systems Performance at Selected Test Sites Prepared for the U.S. Department Subtask 11.1 Deliverables 2 and 4: Report on Solar Resource and PV Systems Performance at Selected Test agency thereof. #12;1 Solar Resource and PV Systems Performance at Selected Test Sites Contents 1

  5. PV-Modultechnik am ISFH Marc Kntges

    E-Print Network [OSTI]

    1 PV-Modultechnik am ISFH Marc Köntges Entwicklung Messen Prüfen Forschung 90°C #12;2 Aufbau eines. Schulte-Huxel, et al., IEEE J-PV, DOI: 10.1109/JPHOTOV.2012.2208096, 2012 Prozess bringt ganze in PV-Modullaminaten 90°C #12;Lichtsimulation Zellgap · Streulicht aus Zellzwischenraum wird teilweise

  6. Estimating the Value of Utility-Scale Solar Technologies in California Under a 40% Renewable Portfolio Standard (Report Summary) (Presentation)

    SciTech Connect (OSTI)

    Jorgenson, J.; Denholm, P.; Mehos, M.

    2014-06-01

    Concentrating solar power with thermal energy storage (CSP-TES) is a unique source of solar energy in that its output can be shifted over time. The ability of CSP-TES to be a flexible source of generation may be particularly valuable in regions with high overall penetration of solar energy, such as the state of California. California's Renewable Portfolio Standard (RPS) requires the state to increase generation from eligible renewable energy resources to reach 33% of retail electricity sales by 2020. Beyond 2020, California targets a further reduction in greenhouse gas emissions. To help reach this goal, current California governor Jerry Brown has stated that a higher 40% RPS might be reachable in the near term. The levelized cost of energy is generally emphasized when assessing the economic viability of renewable energy systems implemented to achieve the RPS. However, the operational and capacity benefits of such systems are often ignored, which can lead to incorrect economic comparisons between CSP-TES and variable renewable generation technologies such as solar photovoltaics (PV). Here we evaluate a 40% RPS scenario in a California grid model with PV or CSP-TES providing the last 1% of RPS energy. We compare the technical and economic implications of integrating either solar technology under several sensitivities, finding that the ability to displace new conventional thermal generation capacity may be the largest source of value of CSP-TES compared to PV at high solar penetrations.

  7. Estimating the Value of Utility-Scale Solar Technologies in California Under a 40% Renewable Portfolio Standard

    SciTech Connect (OSTI)

    Jorgenson, J.; Denholm, P.; Mehos, M.

    2014-05-01

    Concentrating solar power with thermal energy storage (CSP-TES) is a unique source of solar energy in that its output can be shifted over time. The ability of CSP-TES to be a flexible source of generation may be particularly valuable in regions with high overall penetration of solar energy, such as the state of California. California's Renewable Portfolio Standard (RPS) requires the state to increase generation from eligible renewable energy resources to reach 33% of retail electricity sales by 2020. Beyond 2020, California targets a further reduction in greenhouse gas emissions. To help reach this goal, current California governor Jerry Brown has stated that a higher 40% RPS might be reachable in the near term. The levelized cost of energy is generally emphasized when assessing the economic viability of renewable energy systems implemented to achieve the RPS. However, the operational and capacity benefits of such systems are often ignored, which can lead to incorrect economic comparisons between CSP-TES and variable renewable generation technologies such as solar photovoltaics (PV). Here we evaluate a 40% RPS scenario in a California grid model with PV or CSP-TES providing the last 1% of RPS energy. We compare the technical and economic implications of integrating either solar technology under several sensitivities, finding that the ability to displace new conventional thermal generation capacity may be the largest source of value of CSP-TES compared to PV at high solar penetrations.

  8. Water Impacts of High Solar PV Electricity Penetration

    SciTech Connect (OSTI)

    Macknick, Jordan; Cohen, Stuart

    2015-09-01

    This analysis provides a detailed national and regional description of the water-related impacts and constraints of high solar electricity penetration scenarios in the U.S. in 2030 and 2050. A modified version of the Regional Energy Deployment System (ReEDS) model that incorporates water resource availability and costs as a constraint in each of its 134 Balancing Area (BA) regions was utilized to explore national and regional differences in water use impacts and solar deployment locations under different solar energy cost and water availability scenarios (Macknick et al. 2015). Water resource availability and cost data are from recently completed research at Sandia National Laboratories (Tidwell et al. 2013a). Scenarios analyzed include two business-as-usual solar energy cost cases, one with and one without considering available water resources, and four solar energy cost cases that meet the SunShot cost goals (i.e., $1/watt for utility-scale PV systems), with varying levels of water availability restrictions. This analysis provides insight into the role solar energy technologies have in the broader electricity sector under scenarios of water constraints.

  9. Grid Integrated Distributed PV (GridPV) Version 2.

    SciTech Connect (OSTI)

    Reno, Matthew J.; Coogan, Kyle

    2014-12-01

    This manual provides the documentation of the MATLAB toolbox of functions for using OpenDSS to simulate the impact of solar energy on the distribution system. The majority of the functio ns are useful for interfacing OpenDSS and MATLAB, and they are of generic use for commanding OpenDSS from MATLAB and retrieving information from simulations. A set of functions is also included for modeling PV plant output and setting up the PV plant in th e OpenDSS simulation. The toolbox contains functions for modeling the OpenDSS distribution feeder on satellite images with GPS coordinates. Finally, example simulations functions are included to show potential uses of the toolbox functions. Each function i n the toolbox is documented with the function use syntax, full description, function input list, function output list, example use, and example output.

  10. How sharp are PV measures?

    E-Print Network [OSTI]

    A. Jencova; S. Pulmannova

    2007-01-11

    Properties of sharp observables (normalized PV measures) in relation to smearing by a Markov kernel are studied. It is shown that for a sharp observable $P$ defined on a standard Borel space, and an arbitrary observable $M$, the following properties are equivalent: (a) the range of $P$ is contained in the range of $M$; (b) $P$ is a function of $M$; (c) $P$ is a smearing of $M$.

  11. A Wavelet-Based Variability Model (WVM) for Solar PV Power Plants

    E-Print Network [OSTI]

    Lave, Matthew; Kleissl, Jan; Stein, Joshua S

    2013-01-01

    output from utility-scale photovoltaic systems," Progress inthe design of photovoltaic systems," in Practical handbookfrom Utility-Scale Photovoltaic Generation System," 2011. D.

  12. PV output smoothing with energy storage.

    SciTech Connect (OSTI)

    Ellis, Abraham; Schoenwald, David Alan

    2012-03-01

    This report describes an algorithm, implemented in Matlab/Simulink, designed to reduce the variability of photovoltaic (PV) power output by using a battery. The purpose of the battery is to add power to the PV output (or subtract) to smooth out the high frequency components of the PV power that that occur during periods with transient cloud shadows on the PV array. The control system is challenged with the task of reducing short-term PV output variability while avoiding overworking the battery both in terms of capacity and ramp capability. The algorithm proposed by Sandia is purposely very simple to facilitate implementation in a real-time controller. The control structure has two additional inputs to which the battery can respond. For example, the battery could respond to PV variability, load variability or area control error (ACE) or a combination of the three.

  13. NRELs PV Tools on the Web: Open PV Project

    Energy Savers [EERE]

    NREL's PV Tools on the Web: The OpenPV Project NREL TAP Webinar Ted Quinby March 24, 2010 National Renewable Energy Laboratory Innovation for Our Energy Future Overview National...

  14. National solar technology roadmap: Concentrator PV

    SciTech Connect (OSTI)

    Friedman, Dan

    2007-06-01

    This roadmap addresses high-concentration (>10x) photovoltaic (PV) systems, incorporating high-efficiency III-V or silicon cells, trackers, and reflective or refractive optics.

  15. Integrating Solar PV in Utility System Operations

    E-Print Network [OSTI]

    Mills, A.

    2014-01-01

    costs with constant nuclear in the high-PV scenario partly because of the large decrease in curtailment of renewable energy,

  16. Integrating Solar PV in Utility System Operations

    E-Print Network [OSTI]

    Mills, A.

    2014-01-01

    2007a, “Evaluating the Limits of Solar Photovoltaics (PV) infor Short-Term Variability of Solar Power. Lawrence Berkeleyand Medium Term Operational Solar Radiation Forecasts in the

  17. Updating Interconnection Screens for PV System Integration

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

    Abraham Ellis, Roger Hill Sandia National Laboratories Tom Key, Kristen Nicole, Jeff Smith Electric Power Research Institute Updating Interconnection Screens for PV System...

  18. CPS Energy- Solar PV Rebate Program

    Broader source: Energy.gov [DOE]

    CPS Energy, San Antonio's municipal utility, offers rebates to customers who install solar photovoltaic (PV) systems on their homes, schools, or businesses. There are four rebate "tiers" available...

  19. Ensuring Quality of PV Modules: Preprint

    SciTech Connect (OSTI)

    Kurtz, S.; Wohlgemuth, J.; Hacke, P.; Kempe, M.; Sample, T.; Yamamichi, M.; Kondo, M.; Doi, T.; Otani, K.; Amano, J.

    2011-07-01

    Photovoltaic (PV) customers need to have confidence in the PV modules they purchase. Currently, no test can quantify a module's lifetime with confidence, but stress tests are routinely used to differentiate PV product designs. We suggest that the industry would be strengthened by using the wisdom of the community to develop a single set of tests that will help customers quantify confidence in PV products. This paper evaluates the need for quality assurance (QA) standards and suggests a path for creating these. Two types of standards are needed: 1) QA of the module design and 2) QA of the manufacturing process.

  20. PV AND GRID RELIABILITY: AVAILABILITY OF PV POWER DURING CAPACITY SHORTFALLS

    E-Print Network [OSTI]

    Perez, Richard R.

    PV AND GRID RELIABILITY: AVAILABILITY OF PV POWER DURING CAPACITY SHORTFALLS Richard Perez events caused by high, localized demand and inability for the grid operators to deliver local power at photovoltaic (PV) power availability during major summer 1999-2000 power outages in the United States. We

  1. PV Systems | Open Energy Information

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on QA:QA J-E-1 SECTION J APPENDIX ECoop Inc Jump to:Newberg,Energy LLC Jump to:3 of Mason County Jump to:EiwaSwedenPV

  2. Kailun PV | Open Energy Information

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on QA:QA J-E-1 SECTION J APPENDIX E LISTStar2-0057-EAInvervar Hydro JumpHuari Silicon MaterialJuncoKSKKailun PV Jump to:

  3. NREL: Photovoltaics Research - PV News

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantity ofkandz-cm11 Outreach Home Room NewsInformationJessework usesof EnergyY-12Working withPhoto of1855JohnScienceNancyNewsPV

  4. Sandia Energy - PV Program Disclaimer

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantity ofkandz-cm11 Outreach Home RoomPreservation of Fe(II)Geothermal Energy &WaterNew CREWOnline Abstracts andPV ModelingProgram

  5. Berkeley Program Offers New Option for Financing Residential PV Systems

    E-Print Network [OSTI]

    Bolinger, Mark A

    2009-01-01

    financing does not reduce the high up-front cost of PV, byto PV owners, including long- term, fixed-cost, attractivecost over some portion of the system’s life, financing can certainly make PV

  6. Federal Tax Incentives for PV: Potential Implications for Program Design

    E-Print Network [OSTI]

    Wiser, Ryan; Bolinger, Mark

    2006-01-01

    encourage demand for PV and value/cost/tax-efficiency of PBIAssumptions • Installed PV system costs exhibit economies ofPV above historical (pre-EPAct) levels • Recent increase in module costs (

  7. Summary Review of Advanced Inverter Technologies for Residential PV Systems

    E-Print Network [OSTI]

    Summary Review of Advanced Inverter Technologies for Residential PV Systems This report summarizes current and emerging standards for residential PV systems and identifies the status of emerging inverter................................................................................................ 7 3. Grid-Connected PV inverters available in US

  8. Solar PV Permitting and Safety Training Webinar

    Broader source: Energy.gov [DOE]

    This webinar provides training on two permitting resources for municipal inspectors; a prescriptive process for building inspectors and a guidance document for permitting for PV for electrical inspectors. The webinar also runs through a number of key code articles in Massachusetts 2014 electrical code and examines a variety of safety hazards commonly found during or after solar PV installations.

  9. Draft Transcript on Municipal PV Systems

    Office of Energy Efficiency and Renewable Energy (EERE)

    Webinar on navigating the legal, tax, and finance issues associated with the installation of Municipal PV Systems. The following agenda was developed based on Pat Boylston's experience assisting municipalities with their PV projects and the requests for information that the Solar America City technical team leads have received from many of the 25 Solar America Cities since the April 2008 meeting in Tucson.

  10. Smart-Grid Ready PV Inverter with Utility Communication

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

    standards, operations center visibility and management, and optimized coordination of smart PV inverters with existing distribution control devices. Smart-Grid Ready PV Inverter...

  11. An Analysis of Residential PV System Price Differences between...

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

    PV System Price Differences between the United States and Germany Residential photovoltaic (PV) systems were twice as expensive in the United States as in Germany (median of...

  12. Full Steam Ahead for PV in US Homes?

    E-Print Network [OSTI]

    Bolinger, Mark A

    2009-01-01

    state, local, and utility rebate programs targeting solar –implications for PV rebate program administrators, PV systemReduce the Size of the Rebates They Provide Without

  13. SunShot Presentation PV Module Reliabity Workshop Opening Session...

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

    Presentation PV Module Reliabity Workshop Opening Session SunShot Presentation PV Module Reliabity Workshop Opening Session This PowerPoint slide deck was originally presented at...

  14. Low Cost High Concentration PV Systems for Utility Power Generation...

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

    Residential and Utility Solar Power Generating Systems SunPower,Low Cost Thin Film Building-Integrated PV Systems Low Cost High Concentration PV Systems for Utility Power...

  15. Kauai, Hawaii: Solar Resource Analysis and High-Penetration PV...

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

    Kauai, Hawaii: Solar Resource Analysis and High-Penetration PV Potential Kauai, Hawaii: Solar Resource Analysis and High-Penetration PV Potential This study looks at the technical...

  16. Department of Veterans Affairs, FONSI - Rooftop solar PV power...

    Energy Savers [EERE]

    Rooftop solar PV power at Calverton National Cemetery Department of Veterans Affairs, FONSI - Rooftop solar PV power at Calverton National Cemetery An Environmental Assessment (EA)...

  17. PV Performance and Reliability Validation Capabilities at Sandia...

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

    PV Performance and Reliability Validation Capabilities at Sandia National Laboratories PV Performance and Reliability Validation Capabilities at Sandia National Laboratories This...

  18. THE IMPACT OF CITY-LEVEL PERMITTING PROCESSES ON RESIDENTIAL PV INSTALLATION PRICES AND DEVELOPMENT TIMES

    E-Print Network [OSTI]

    Dong, Changgui

    2014-01-01

    The installed price of photovoltaic (PV) systems hasprice and development time of residential photovoltaic (PV)

  19. Economic and Technical Feasibility Study of Utility-Scale Wind Generation for the New York Buffalo River and South Buffalo Brownfield Opportunity Areas

    SciTech Connect (OSTI)

    Roberts, J. O.; Mosey, G.

    2014-04-01

    Through the RE-Powering America's Land initiative, the economic and technical feasibility of utilizing contaminated lands in the Buffalo, New York, area for utility-scale wind development is explored. The study found that there is available land, electrical infrastructure, wind resource, and local interest to support a commercial wind project; however, economies of scale and local electrical markets may need further investigation before significant investment is made into developing a wind project at the Buffalo Reuse Authority site.

  20. Shaking Up the Residential PV Market: Implications of Recent Changes to the ITC

    SciTech Connect (OSTI)

    Bolinger, Mark; Barbose, Galen; Wiser, Ryan

    2008-11-12

    On August 8, 2005, the Energy Policy Act of 2005 (EPAct 2005) increased the Section 48 investment tax credit (ITC) for commercial photovoltaic (PV) systems from 10% to 30% of the project's 'tax credit basis' (i.e., the dollar amount to which the ITC applies), and also created in Section 25D of the Internal Revenue Code a new 30% ITC (capped at $2,000) for residential solar systems. Both changes went into effect on January 1, 2006, for an initial period of two years, and in late 2006 both credits were extended 'as is' for an additional year (through 2008). In early 2006, Berkeley Lab published an LBNL/CESA case study that examined the financial impact of EPAct 2005's solar tax credits on PV system owners, in light of the $2,000 cap on the residential credit, as well as the fact that most PV systems in the U.S. also receive cash incentives from state-, local-, or utility-administered PV programs, and that these cash incentives may reduce the value of federal tax credits in certain situations. That case study was subsequently revised in February 2007 to reflect new Internal Revenue Service (IRS) guidance. The findings of that case study, which are briefly recapped in the next section, remained relevant up until October 2008, when the Energy Improvement and Extension Act of 2008 extended both solar credits for an unprecedented eight years, removed the $2,000 cap on the residential credit, and eliminated restrictions on the use of both credits in conjunction with the Alternative Minimum Tax (AMT). These significant changes, which apply to systems placed in service on or after January 1, 2009, will increase the value of the solar credits for residential system owners in particular, and are likely to spur significant growth in residential, commercial, and utility-scale PV installations in the years ahead. In light of these substantial changes to the solar ITC, this report takes a fresh look at the value of these revised credits, focusing specifically on the Section 25D residential credit. After first setting the stage by briefly reviewing our previous findings, the document proceeds to cover four specific areas in which the removal of the $2,000 cap on the residential ITC will have significant implications for PV program administrators, PV system owners, and the PV industry that go beyond the obvious market growth potential created by these more-lucrative federal incentives. These four areas include: (1) The financial implications of whether or not residential cash rebates are considered to be taxable income; (2) The role of low-interest loan programs and other forms of 'subsidized energy financing' under an uncapped ITC; (3) The degree to which taxable and nontaxable rebate levels might be reduced in response to the extra value provided by an uncapped ITC; and (4) The impact of an uncapped ITC on third-party financing and ownership models that are just beginning to emerge in the residential sector. The document concludes by highlighting a common thread that runs throughout: the need for PV program managers to understand whether or not their rebates are considered to be taxable income before they can react in an appropriate manner to the recent changes in federal solar policy and, if financing programs are offered, the need to understand whether the IRS considers these programs to be 'subsidized'. Finally, we note that this paper is based on current law; future legislative changes to the ITC could, of course, alter the conclusions reached here.

  1. Terawatt Challenge for Thin-Film PV

    SciTech Connect (OSTI)

    Zweibel, K.

    2005-08-01

    The evolution of PV into one of the world's largest industries is not going to happen without major unforeseen problems. However, this study attempts to address the obvious ones, so that we can put aside the mythology of PV (for example, that it is only ''boutique power'' or that one must pave the world with it to be useful) and get on with changing the world's energy infrastructure. With the years of rapid market growth now under way in PV, the author is sure this will not be the last effort to understand the real potential and pitfalls of meeting the Challenge.

  2. (Eigen Phoneme Space (Phoneme Vector : PV)

    E-Print Network [OSTI]

    Takiguchi, Tetsuya

    ) (Phoneme Vector : PV) Fig. 1 (EPS) /a/ /i/ · · · PCA (EPS) 2.2 PCA PCA i Si Si = 1 N N t=1 (xi t - ¯xi )(xi (6) #12;Fig. 2 Phoneme Vector (PV) extraction (6) yt (Q×M) yt PCA y t y t = V T (yt - ¯y) (7) V = [1 , 2 , · · · , R ] R Fig. 2 3 3.1 DCT PCA MFCC PCA PV 32 16 32 (Q) 5 21 2 ATR A-SET 2,620 54 HMM 1

  3. Measured Performance of California Buydown Program Residential PV Systems

    E-Print Network [OSTI]

    Measured Performance of California Buydown Program Residential PV Systems Kurt Scheuermann a proposal to monitor in-field performance of photovoltaic (PV) and hybrid PV/small wind systems funded collected from fourteen PV systems from mid-February through September, 2000. In December 2000 and January

  4. Solar Works! In Seattle: Introduction to Solar Electric (PV)

    Office of Energy Efficiency and Renewable Energy (EERE)

    Presentation slides from residential PV workshop. Also covers general solar resource assessment, siting and financial incentives.

  5. Energy 101: Solar PV | Department of Energy

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

    on www.youtube.com, or enable JavaScript if it is disabled in your browser. Description Solar photovoltaic (PV) systems can generate clean, cost-effective power anywhere the sun...

  6. Sandia Energy - Evaluating Rooftop Strength for PV

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

    for PVcwdd2015-09-30T16:55:16+00:00 Confirming the Strength of Residential Roof Structures for Solar Installations Test Setup Photo Test Setup The solar photovoltaic (PV)...

  7. City of Lompoc Utilities- PV Rebate Program

    Broader source: Energy.gov [DOE]

    City of Lompoc Utilities provides rebates to its electric customers who purchase and install photovoltaic (PV) systems. The rebate is $1.00 per watt-AC. The incentive amount may not exceed 50% the...

  8. Distributed PV Permitting and Inspection Processes

    Broader source: Energy.gov [DOE]

    This presentation summarizes case studies of the time and cost involved in the distributed PV permitting and inspection process in three Solar America Cities, Austin, Portland, and Salt Lake City.

  9. PV Module Reliability Research (Fact Sheet)

    SciTech Connect (OSTI)

    Not Available

    2013-06-01

    This National Center for Photovoltaics sheet describes the capabilities of its PV module reliability research. The scope and core competencies and capabilities are discussed and recent publications are listed.

  10. PV1 model verification and validation

    E-Print Network [OSTI]

    Fuller, Frank H.

    1981-01-01

    The purpose of this document is 1) to describe, in detail, the theoretic foundation on which PV1 is based, 2) indicate the manner in which its theoretical foundation has been translated into a practical, useful tool for ...

  11. Sandia Energy - PV Reliability & Performance Model

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

    Model PV Reliability & Performance ModelTara Camacho-Lopez2015-06-01T20:13:00+00:00 This Web Demo model is a simplified "player" version of the Photovoltaic Reliability Performance...

  12. Solar Energy International Solar PV 101 Training

    Broader source: Energy.gov [DOE]

    Solar Energy International is offering a five-day training that provides an overview of the three basic PV system applications, primarily focusing on grid-direct systems. The goal of the course is...

  13. Austin Energy- Commercial Solar PV Incentive Program

    Broader source: Energy.gov [DOE]

    In order to qualify for this program, PV modules must be new and be listed on the California Energy Commission's Go Solar web site. In addition, all solar panels must have a 20-year manufacturer ...

  14. Merced Irrigation District- PV Buydown Program

    Broader source: Energy.gov [DOE]

    Merced Irrigation District (MID) offers its residential, commercial and non-profit customers a rebate for installing solar electric photovoltaic (PV) systems on their homes and offices. For 2015,...

  15. Plumas-Sierra REC- PV Rebate Program

    Broader source: Energy.gov [DOE]

    Plumas-Sierra REC offers an incentive for its customers to install photovoltaic (PV) systems on homes and businesses. Rebates are available for qualifying systems between one kilowatt (kW) and 25...

  16. SMUD- PV Residential Retrofit Buy-Down

    Broader source: Energy.gov [DOE]

    The incentive can be paid directly to the customer or the installer. PV equipment listed on the CEC Approved Equipment list is eligible for incentives: http://www.gosolarcalifornia.org/equipment...

  17. PV System Energy Evaluation Method (Presentation)

    SciTech Connect (OSTI)

    Kurtz, S.

    2014-01-01

    This presentation describes a comparison of the "predicted" energy (based on historical weather data) with the "expected" energy (based on the measured weather data) to determine whether a PV system is performing as modeled in order to verify the accuracy of a model. A key factor in defining this energy test is determining the test boundary so that weather variations are not inadvertently included in what is considered to be PV system performance.

  18. Power losses in PV arrays due to variations in the I-V characteristics of PV modules

    E-Print Network [OSTI]

    Heinemann, Detlev

    Power losses in PV arrays due to variations in the I-V characteristics of PV modules Wolfgang Damm-V characteristics of the 36 individual modules of a PV generator at the University of Oldenburg were measured the basis for the calculations of the mismatch losses due to series and parallel connection of PV modules

  19. Updating Technical Screens for PV Interconnection: Preprint

    SciTech Connect (OSTI)

    Coddington, M.; Ellis, A.; Lynn, K.; Razon, A.; Key, T.; Kroposki, B.; Mather, B.; Hill, R.; Nicole, K.; Smith, J.

    2012-08-01

    Solar photovoltaics (PV) is the dominant type of distributed generation (DG) technology interconnected to electric distribution systems in the United States, and deployment of PV systems continues to increase rapidly. Considering the rapid growth and widespread deployment of PV systems in United States electric distribution grids, it is important that interconnection procedures be as streamlined as possible to avoid unnecessary interconnection studies, costs, and delays. Because many PV interconnection applications involve high penetration scenarios, the process needs to allow for a sufficiently rigorous technical evaluation to identify and address possible system impacts. Existing interconnection procedures are designed to balance the need for efficiency and technical rigor for all DG. However, there is an implicit expectation that those procedures will be updated over time in order to remain relevant with respect to evolving standards, technology, and practical experience. Modifications to interconnection screens and procedures must focus on maintaining or improving safety and reliability, as well as accurately allocating costs and improving expediency of the interconnection process. This paper evaluates the origins and usefulness of the capacity penetration screen, offers potential short-term solutions which could effectively allow fast-track interconnection to many PV system applications, and considers longer-term solutions for increasing PV deployment levels in a safe and reliable manner while reducing or eliminating the emphasis on the penetration screen.

  20. Urbanizing terrains

    E-Print Network [OSTI]

    Romanos, Christoforos

    2008-01-01

    Urban "sprawl"in the East Attica area of Athens has dramatically changed the former rural economy in a manner consistent with the urbanizing terrain's underlying properties: agricultural subdivisions, existing centres, ...

  1. Do PV Systems Increase Residential Selling Prices If So, How Can Practitioners Estimate This Increase?

    E-Print Network [OSTI]

    Hoen, Ben

    2013-01-01

    underlying net installation costs for PV systems between newfrom electricity cost savings after PV system installationannual electricity cost savings associated with PV they are

  2. Holdover inoculum of Pseudomonas syringae pv. alisalensis from broccoli raab causes disease in subsequent plantings

    E-Print Network [OSTI]

    Cintas, N A; Koike, S T; Bunch, R A; Bull, C T

    2006-01-01

    by Pseudomonas syringae pv. alisalensis in California. Plantof Pseudo- monas syringae pv. alisalensis. (Abstr. ) Phyto-2004. Pseudomonas syringae pv. alisalensis and Pseudomonas

  3. Analyzing and simulating the variability of solar irradiance and solar PV powerplants

    E-Print Network [OSTI]

    Lave, Matthew S.

    2012-01-01

    Analysis of Distributed PV, American Solar Energy Society,Simulating the Reduction in PV Powerplant Variability due to8] T. Hoff, R. Perez, Modeling PV Fleet Output Variability,

  4. An efficient method for visualization and growth of fluorescent Xanthomonas oryzae pv. oryzae in planta.

    E-Print Network [OSTI]

    Han, Sang-Wook; Park, Chang-Jin; Lee, Sang-Won; Ronald, Pamela C

    2008-01-01

    Background Xanthomonas oryzae pv. oryzae, a yellow-pigmentedsativa L. ) plants. X. oryzae pv. oryzae infection can causetropical Asia [1]. X. oryzae pv. oryzae infects rice leaves

  5. A Wavelet-Based Variability Model (WVM) for Solar PV Power Plants

    E-Print Network [OSTI]

    Lave, Matthew; Kleissl, Jan; Stein, Joshua S

    2013-01-01

    Power characteristics of PV ensembles: experiences from theproduction of 100 grid connected PV systems distributed overHoff and R. Perez, "Modeling PV Fleet Output Variability,"

  6. Designing PV Incentive Programs to Promote System Performance: A Review of Current Practice

    E-Print Network [OSTI]

    Barbose, Galen; Wiser, Ryan; Bolinger, Mark

    2006-01-01

    Dan. 2006. Best Practices in PV Rebate Programs: Helpingprogram staff. Designing PV Incentive Programs to PromoteGroup), Mike Taylor Designing PV Incentive Programs to

  7. Designing PV Incentive Programs to Promote Performance: A Review of Current Practice

    E-Print Network [OSTI]

    Barbose, Galen; Wiser, Ryan; Bolinger, Mark

    2007-01-01

    DESIGNING PV INCENTIVE PROGRAMS TO PROMOTE SYSTEMcustomer-sited photovoltaic (PV) systems, provided throughface to ensuring that their PV systems perform well, and the

  8. Photovoltaic (PV) Pricing Trends: Historical, Recent, and Near-Term Projections

    E-Print Network [OSTI]

    Feldman, David

    2014-01-01

    all. Super monocrystalline PV modules are currently the mostBloomberg New Energy Finance. PV Market Outlook, Q1 2012 (Solar Photovoltaic Industry: Solar PV industry outlook and

  9. Quantitative Measurements of Xanthomonas Oryzae pv. Oryzae Distribution in Rice Using Fluorescent-Labeling

    E-Print Network [OSTI]

    Nozue, Kazunari; Park, Chang-Jin; Ronald, Pamela C

    2011-01-01

    of Xanthomonas Oryzae pv. Oryzae Distribution in Rice Usingstrains of Xanthomonas oryzae pv. oryzae (Xoo), the casualKeywords Xanthomonas oryzae pv. oryzae, GFP, Oryza sativa .

  10. A Wavelet-Based Variability Model (WVM) for Solar PV Power Plants

    E-Print Network [OSTI]

    Lave, Matthew; Kleissl, Jan; Stein, Joshua S

    2013-01-01

    Model (WVM) for Solar PV Power Plants Matthew Lave, Jansimulating solar photovoltaic (PV) power plant output giventhe power output of a solar photovoltaic (PV) plant was

  11. Enabling Broad Adoption of Distributed PV-storage systems Via Supervisory Planning & Control

    E-Print Network [OSTI]

    DeForest, Nicholas

    2014-01-01

    of distributed PV-storage systems via supervisory planning &of distributed PV-storage systems via supervisory planning &control for PV-storage systems increases the annual energy

  12. Sandia Energy - PV Arc-Fault and Ground Fault Detection and Mitigation...

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

    Program Home Stationary Power Energy Conversion Efficiency Solar Energy Photovoltaics PV Systems Reliability PV Arc-Fault and Ground Fault Detection and Mitigation Program PV...

  13. DOE High Performance Concentrator PV Project

    SciTech Connect (OSTI)

    McConnell, R.; Symko-Davies, M.

    2005-08-01

    Much in demand are next-generation photovoltaic (PV) technologies that can be used economically to make a large-scale impact on world electricity production. The U.S. Department of Energy (DOE) initiated the High-Performance Photovoltaic (HiPerf PV) Project to substantially increase the viability of PV for cost-competitive applications so that PV can contribute significantly to both our energy supply and environment. To accomplish such results, the National Center for Photovoltaics (NCPV) directs in-house and subcontracted research in high-performance polycrystalline thin-film and multijunction concentrator devices with the goal of enabling progress of high-efficiency technologies toward commercial-prototype products. We will describe the details of the subcontractor and in-house progress in exploring and accelerating pathways of III-V multijunction concentrator solar cells and systems toward their long-term goals. By 2020, we anticipate that this project will have demonstrated 33% system efficiency and a system price of $1.00/Wp for concentrator PV systems using III-V multijunction solar cells with efficiencies over 41%.

  14. PV performance modeling workshop summary report.

    SciTech Connect (OSTI)

    Stein, Joshua S.; Tasca, Coryne Adelle (SRA International, Inc., Fairfax, VA); Cameron, Christopher P.

    2011-05-01

    During the development of a solar photovoltaic (PV) energy project, predicting expected energy production from a system is a key part of understanding system value. System energy production is a function of the system design and location, the mounting configuration, the power conversion system, and the module technology, as well as the solar resource. Even if all other variables are held constant, annual energy yield (kWh/kWp) will vary among module technologies because of differences in response to low-light levels and temperature. A number of PV system performance models have been developed and are in use, but little has been published on validation of these models or the accuracy and uncertainty of their output. With support from the U.S. Department of Energy's Solar Energy Technologies Program, Sandia National Laboratories organized a PV Performance Modeling Workshop in Albuquerque, New Mexico, September 22-23, 2010. The workshop was intended to address the current state of PV system models, develop a path forward for establishing best practices on PV system performance modeling, and set the stage for standardization of testing and validation procedures for models and input parameters. This report summarizes discussions and presentations from the workshop, as well as examines opportunities for collaborative efforts to develop objective comparisons between models and across sites and applications.

  15. Updating Interconnection Screens for PV System Integration

    SciTech Connect (OSTI)

    Coddington, M.; Mather, B.; Kroposki, B.; Lynn, K.; Razon, A.; Ellis, A.; Hill, R.; Key, T.; Nicole, K.; Smith, J.

    2012-02-01

    This white paper evaluates the origins and usefulness of the capacity penetration screen, offer short-term solutions which could effectively allow fast-track interconnection to many PV system applications, and considers longer-term solutions for increasing PV deployment levels in a safe and reliable manner while reducing or eliminating the emphasis on the penetration screen. Short-term and longer-term alternatives approaches are offered as examples; however, specific modifications to screening procedures should be discussed with stakeholders and must ultimately be adopted by state and federal regulatory bodies.

  16. International PV QA Task Force's Proposed Comparative Rating System for PV Modules: Preprint

    SciTech Connect (OSTI)

    Wohlgemuth, J.; Kurtz, S.

    2014-10-01

    The International PV Quality Assurance Task Force is developing a rating system that provides comparative information about the relative durability of PV modules. Development of accelerated stress tests that can provide such comparative information is seen as a major step toward being able to predict PV module service life. This paper will provide details of the ongoing effort to determine the format of such an overall module rating system. The latest proposal is based on using three distinct climate zones as defined in IEC 60721-2-1 for two different mounting systems. Specific stresses beyond those used in the qualification tests are being developed for each of the selected climate zones.

  17. U.S. Aims for Zero-Energy: Support for PV on New Homes

    E-Print Network [OSTI]

    Barbose, Galen; Wiser, Ryan; Bolinger, Mark

    2006-01-01

    solar photovoltaic (PV) adoption, new homes have a number ofenergy funds for encouraging PV adoption in new, market-ratePV as an option is that PV adoption is contingent on each

  18. Breakout Session: A Look Ahead: PV Manufacturing in 10 Years

    Broader source: Energy.gov [DOE]

    The global PV manufacturing landscape has undergone significant changes in the past decade, from geographic and economic changes in the supply chain to a significant increase in PV module...

  19. Energy Efficiency First, Zero Energy Ready Homes, and Solar PV...

    Office of Environmental Management (EM)

    Energy Efficiency First, Zero Energy Ready Homes, and Solar PV Updates Energy Efficiency First, Zero Energy Ready Homes, and Solar PV Updates April 29, 2015 11:00AM to 12:30PM MDT...

  20. Photovoltaic (PV) Pricing Trends: Historical, Recent, and Near-Term

    E-Print Network [OSTI]

    Photovoltaic (PV) Pricing Trends: Historical, Recent, and Near-Term Projections November 2012 #12;Photovoltaic (PV) Pricing Trends: Historical, Recent, and Near-Term Projections David Feldman1 , Galen Barbose2........................................................................................................................................... 1 2. Historical and Recent Reported Prices

  1. Berkeley Program Offers New Option for Financing Residential PV Systems

    E-Print Network [OSTI]

    Bolinger, Mark A

    2009-01-01

    Clean Energy States Alliance, titled “Property Tax Assessments as a Finance Vehicle for Residential PV Installations: Opportunities and Potential

  2. The Economic Value of PV and Net Metering to Residential Customers in California

    E-Print Network [OSTI]

    Darghouth, Naim

    2010-01-01

    distributed photovoltaics (PV) adoption. Though specificadoption. In the long-run, however, this variation in the value of PV

  3. Personeelsvereniging Technische Universiteit Eindhoven DOE MEE met de PV !!

    E-Print Network [OSTI]

    Franssen, Michael

    Personeelsvereniging Technische Universiteit Eindhoven DOE MEE met de PV !! Eindhoven 12 maart 2012 Het bestuur van de PV is dringend op zoek naar verjonging en nieuwe invulling van de volgende rollen Aanspreekpunt voor activiteiten Exacte invulling van de functie, mogelijk in duo, in overleg met het PV bestuur

  4. Informations et rservations : ce.pv-holidays.com

    E-Print Network [OSTI]

    Arleo, Angelo

    Informations et réservations : ce.pv-holidays.com * Offre valable pour tout séjour de 7 nuits détails sur ce.pv-holidays.com. Offre valable sur l'hébergement seul (hors frais de dossier, prestations cumulable avec votre remise partenaire, toute offre promotionnelle ou réductions. PV-CPDistribution, Société

  5. Results from measurements on the PV-VENT systems

    E-Print Network [OSTI]

    Results from measurements on the PV-VENT systems at Lundebjerg Solar Energy Centre Denmark Danish from measurements on the PV-VENT systems at Lundebjerg Søren Østergaard Jensen Solar Energy Centre with (Jensen, 2000a) Solar Energy Centre Denmark's (Danish Technological Institute) measuring work in the PV

  6. Dynamic Interactions of PV units in Low Volatge Distribution Systems

    E-Print Network [OSTI]

    Pota, Himanshu Roy

    Dynamic Interactions of PV units in Low Volatge Distribution Systems M. J. Hossain, J. Lu Griffith. Abstract--Photovoltaic (PV) units along with other distributed energy resources (DERs) are located close, robust control, stability. I. Introduction The integration level of PV units in low and medium voltage

  7. A GUIDE TO PHOTOVOLTAIC (PV) SYSTEM DESIGN AND INSTALLATION

    E-Print Network [OSTI]

    CALIFORNIA ENERGY COMMISSION A GUIDE TO PHOTOVOLTAIC (PV) SYSTEM DESIGN AND INSTALLATION JUNE 2001 500-01-020 CONSULTANTREPORT Gray Davis, Governor #12;PV Installation Guide June 2001 Page 1 A GUIDE TO PHOTOVOLTAIC (PV) SYSTEM DESIGN AND INSTALLATION Prepared for: California Energy Commission Energy Technology

  8. Experience Curves and Solar PV Fred Heutte, Senior Policy Associate

    E-Print Network [OSTI]

    resources costs as being ranges rather than fixed values. It is evident that the question of future solar PV for transmission expansion. Consequently, the future estimated cost projection for solar PV has been a point for solar PV should be dramatically changed "downward" going forward (i.e., significantly less of a cost

  9. High Resolution PV Power Modeling for Distribution Circuit Analysis

    SciTech Connect (OSTI)

    Norris, B. L.; Dise, J. H.

    2013-09-01

    NREL has contracted with Clean Power Research to provide 1-minute simulation datasets of PV systems located at three high penetration distribution feeders in the service territory of Southern California Edison (SCE): Porterville, Palmdale, and Fontana, California. The resulting PV simulations will be used to separately model the electrical circuits to determine the impacts of PV on circuit operations.

  10. Performance and Analysis of Photovoltaic (PV)Technologies

    E-Print Network [OSTI]

    Performance and Analysis of Photovoltaic (PV)Technologies at Selected Sites This report presents performance data from grid-connected PV systems located on Hawai`i Island, Maui, and O`ahu. Data was collected from PV systems produced by different manufacturers using a variety of technologies. The report

  11. Aalborg Universitet Remote and Centralized Monitoring of PV Power Plants

    E-Print Network [OSTI]

    Sera, Dezso

    Aalborg Universitet Remote and Centralized Monitoring of PV Power Plants Kopacz, Csaba; Spataru., & Kerekes, T. (2014). Remote and Centralized Monitoring of PV Power Plants. In Proceedings of the 14th from vbn.aau.dk on: juli 04, 2015 #12;Remote and Centralized Monitoring of PV Power Plants Csaba Kopacz

  12. Standardizing Appraisals for PV Installations Geoffrey T. Klise1

    E-Print Network [OSTI]

    Standardizing Appraisals for PV Installations Geoffrey T. Klise1 , Jamie L. Johnson2 , and Sandra K Gorda, FL, 33980, USA 3 Adomatis Appraisal Services, Punta Gorda, FL, 33951, USA ABSTRACT -- As PV to value the PV system as part of a property sale or re-finance. Proper valuation techniques as applied

  13. Performance Studies of PV: an Onthefly Modelchecker for

    E-Print Network [OSTI]

    Performance Studies of PV: an On­the­fly Model­checker for LTL­X Featuring Selective Caching 2001 Abstract We present an enumerative model­checker PV that uses a new partial order reduction al as with selective state caching very straightfor­ ward. We present a thorough evaluation of PV in terms of several

  14. SUPPLEMENTARY METHODS Strategies for microbial opsin expression in PV

    E-Print Network [OSTI]

    Schnitzer, Mark

    SUPPLEMENTARY METHODS Strategies for microbial opsin expression in PV::Cre mice. The simplest approach for microbial opsin expression in PV::Cre mice takes advantage of a cassette consisting of three) that can be excised by Cre recombinase in those PV neurons that express Cre. This approach has been used

  15. Modelling PV Deployment: A Tool Developed at CEEP to

    E-Print Network [OSTI]

    Delaware, University of

    Modelling PV Deployment: A Tool Developed at CEEP to Explore the Delaware Market Energy-3098 Website: http://ceep.udel.edu #12;Modeling PV Deployment: A Tool Developed at CEEP to Explore the Delaware..............................................................................................................................2 3. CEEP's Solar PV Diffusion Model Overview

  16. Report on PV Test Sites and Test Prepared for the

    E-Print Network [OSTI]

    Report on PV Test Sites and Test Protocols Prepared for the U.S. Department of Energy Office`i Distributed Energy Resource Technologies for Energy Security Revised Task 8 Deliverable PV Test Sites and Test. #12;1 Report on PV Test Sites and Test Protocols Table of Contents 1. Introduction

  17. PV MODULE PERFORMANCE AFTER 30 YEARS WITHOUT WASHING Frank Vignola

    E-Print Network [OSTI]

    Oregon, University of

    1 PV MODULE PERFORMANCE AFTER 30 YEARS WITHOUT WASHING Frank Vignola Josh Peterson Rich Kessler of a Solarex 40 watt mono crystalline PV module is examined after 30 years in use without washing. After photovoltaic (PV) modules? As the mod- ules are often on roof tops or situated out of the way, it often takes

  18. VADE-MECUM DE LA VORTICITE POTENTIELLE Dfinition (PV) P=

    E-Print Network [OSTI]

    Legras, Bernard

    VADE-MECUM DE LA VORTICITE POTENTIELLE Définition (PV) P= rot u2 Unité 1PVU = 106 K kg1 m2 s1 Pour les mouvements inviscides et adiabatiques, la PV est conservée pour chaque particule. Forme 102 s1 . La PV croît en magnitude vers les pôles. Ceci est dû à la croissance de |f| vers les pôles

  19. Distribution System Analysis Tools for Studying High Penetration of PV

    E-Print Network [OSTI]

    Distribution System Analysis Tools for Studying High Penetration of PV with Grid Support Features Electric Energy System #12;#12;Distribution System Analysis Tools for Studying High Penetration of PV project titled "Distribution System Analysis Tools for Studying High Penetration of PV with Grid Support

  20. pV3 Programmer's Guide Client Side & Concentrator Programming

    E-Print Network [OSTI]

    Peraire, Jaime

    pV3 Programmer's Guide Rev. 2.05 Client Side & Concentrator Programming Bob Haimes Massachusetts.I.T., and USER agrees to preserve same. 2 #12;Contents 1 Introduction 6 2 pV3 in the Message Passing Environment 7 2.1 Using PVM Message Passing with the Simulation . . . . . . . . . . . . . . . . . . . . 7 2.2 pV

  1. Role of Polycrystalline Thin-Film PV Technologies in Competitive PV Module Markets: Preprint

    SciTech Connect (OSTI)

    von Roedern, B.; Ullal, H. S.

    2008-05-01

    This paper discusses the developments in thin-film PV technologies and provides an outlook on future commercial module efficiencies achievable based on today's knowledge about champion cell performance.

  2. Solar Photovoltaic (PV) System Permit Application Checklist

    Office of Energy Efficiency and Renewable Energy (EERE)

    The Permit Application Checklist is intended to be used as a best management practice when establishing local government requirements for residential and commercial solar photovoltaic (PV) system permits. Local governments may modify this checklist to accommodate their local ordinances, code requirements, and permit procedures.

  3. Transforming PV Installations Toward Dispatchable, Schedulable...

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

    B C N A B C N A B C N A B C N Ai n Bi n Ci n Aout Bout Cout A B C N A B C N Transforming PV insTallaTions Toward disPaTchable, schedulable energy soluTions MIChAEl MIllS-PrICE,...

  4. Analysis and Design of Smart PV Module 

    E-Print Network [OSTI]

    Mazumdar, Poornima

    2012-12-10

    the individual dc-dc converters and control the output AC voltages directly, thus becoming a true plug and power energy system. Such a concept is ideal for curved surfaces such as building integrated PV (BIPV) system applications where gradients of insolation...

  5. PV Solar Site Assessment (Milwaukee High School)

    Broader source: Energy.gov [DOE]

    The purpose of this assessment is to provide site-specific information on how a solar electric (also referred to as a photovoltaic, or PV) system would perform at your location, including information on estimated physical size, rated output, energy production, costs, financial incentives and mounting options. Site assessors are required to present unbiased information and may not recommend contractors or products.

  6. 2 IAEI NEWS September . October 2011 www.iaei.org perspectives on pv

    E-Print Network [OSTI]

    Johnson, Eric E.

    2 IAEI NEWS September . October 2011 www.iaei.org perspectives on pv www.iaei.org September . October 2011 IAEI NEWS 3 perspectives on pv P hotovoltaic (PV) power systems have PV modules and PV arrays will be supplied to local loads and to the con- nected utility grid. There are two areas of PV systems that deserve

  7. Mathematical Modeling for CostMathematical Modeling for Cost Optimization of PV RecyclingOptimization of PV Recycling

    E-Print Network [OSTI]

    Bergman, Keren

    Mathematical Modeling for CostMathematical Modeling for Cost Optimization of PV Recycling of plants Capital costs to open up a recycling center 4 #12;Time Horizon for PV Recycling Infrastructure 5 cost $189K System optimal cost $1079K 11 #12;PV Recycling ­Cost Optimization 1. Where is the optimized

  8. The Effect of PV Array Size and Battery Size on the Economics of PV/Diesel/Battery Hybrid RAPS Systems

    E-Print Network [OSTI]

    The Effect of PV Array Size and Battery Size on the Economics of PV/Diesel/Battery Hybrid RAPS WA 6150 Abstract This paper focuses on pv/diesel/battery hybrid RAPS systems meeting loads above 50 kWh. INTRODUCTION A diesel hybrid system, incorporating a battery and inverter, can often provide power at a lower

  9. On the pure virtual braid group $PV_3$

    E-Print Network [OSTI]

    Bardakov, V G; Vershinin, V V; Wu, J

    2009-01-01

    In this article, we investigate various properties of the pure virtual braid group PV_3. From its canonical presentation, we obtain a free product decomposition of PV_3. As a consequence, we show that PV_3 is residually torsion free nilpotent, which implies that the set of finite type invariants in the sense of Goussarov-Polyak-Viro is complete for virtual pure braids with three strands. Moreover we prove that the presentation of PV_3 is aspherical. Finally we determine the cohomology ring and the associated graded Lie algebra of PV_3.

  10. Materials Testing for PV Module Encapsulation

    SciTech Connect (OSTI)

    Jorgensen, G.; Terwilliger, K.; Glick, S.; Pern, J.; McMahon, T.

    2003-05-01

    Important physical properties of materials used in PV module packaging are presented. High-moisture-barrier, high-resistivity, adhesion-promoting coatings on polyethyl-ene terephthalate (PET) films have been fabricated and characterized for use in PV module application and com-pared to standard polymer backsheet materials. Ethylene vinyl acetate (EVA) and an encapsulant replacement for EVA are studied for their water vapor transmission rate (WVTR) and adhesion properties. WVTR, at test conditions up to 85C/100% relative humidity (RH), and adhesion val-ues are measured before and after filtered xenon arc lamp ultraviolet (UV) exposure and damp heat exposure at 85C/85% RH. Water ingress is quantified by weight gain and embedded humidity sensors.

  11. Cascaded Microinverter PV System for Reduced Cost

    SciTech Connect (OSTI)

    Bellus, Daniel R.; Ely, Jeffrey A.

    2013-04-29

    In this project, a team led by Delphi will develop and demonstrate a novel cascaded photovoltaic (PV) inverter architecture using advanced components. This approach will reduce the cost and improve the performance of medium and large-sized PV systems. The overall project objective is to develop, build, and test a modular 11-level cascaded three-phase inverter building block for photovoltaic applications and to develop and analyze the associated commercialization plan. The system will be designed to utilize photovoltaic panels and will supply power to the electric grid at 208 VAC, 60 Hz 3-phase. With the proposed topology, three inverters, each with an embedded controller, will monitor and control each of the cascade sections, reducing costs associated with extra control boards. This report details the final disposition on this project.

  12. Utility-scale photovoltaic concentrators

    SciTech Connect (OSTI)

    None, None

    2009-01-18

    The photovoltaics concentrators section of the Renewable Energy Technology Characterizations describes the technical and economic status of this emerging renewable energy option for electricity supply.

  13. WINDExchange: Utility-Scale Wind

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantity ofkandz-cm11 Outreach Home RoomPreservationBio-Inspired SolarAbout /Two0 -UsingHeatInformation ResourcesAboutHowMaps &

  14. Life Cycle Water Consumption and Water Resource Assessment for Utility-Scale Geothermal Systems: An In-Depth Analysis of Historical and Forthcoming EGS Projects

    DOE Data Explorer [Office of Scientific and Technical Information (OSTI)]

    Schroeder, Jenna N.

    2013-08-31

    This report is the third in a series of reports sponsored by the U.S. Department of Energy Geothermal Technologies Program in which a range of water-related issues surrounding geothermal power production are evaluated. The first report made an initial attempt at quantifying the life cycle fresh water requirements of geothermal power-generating systems and explored operational and environmental concerns related to the geochemical composition of geothermal fluids. The initial analysis of life cycle fresh water consumption of geothermal power-generating systems identified that operational water requirements consumed the vast majority of water across the life cycle. However, it relied upon limited operational water consumption data and did not account for belowground operational losses for enhanced geothermal systems (EGSs). A second report presented an initial assessment of fresh water demand for future growth in utility-scale geothermal power generation. The current analysis builds upon this work to improve life cycle fresh water consumption estimates and incorporates regional water availability into the resource assessment to improve the identification of areas where future growth in geothermal electricity generation may encounter water challenges.

  15. Life Cycle Water Consumption and Water Resource Assessment for Utility-Scale Geothermal Systems: An In-Depth Analysis of Historical and Forthcoming EGS Projects

    DOE Data Explorer [Office of Scientific and Technical Information (OSTI)]

    Schroeder, Jenna N.

    This report is the third in a series of reports sponsored by the U.S. Department of Energy Geothermal Technologies Program in which a range of water-related issues surrounding geothermal power production are evaluated. The first report made an initial attempt at quantifying the life cycle fresh water requirements of geothermal power-generating systems and explored operational and environmental concerns related to the geochemical composition of geothermal fluids. The initial analysis of life cycle fresh water consumption of geothermal power-generating systems identified that operational water requirements consumed the vast majority of water across the life cycle. However, it relied upon limited operational water consumption data and did not account for belowground operational losses for enhanced geothermal systems (EGSs). A second report presented an initial assessment of fresh water demand for future growth in utility-scale geothermal power generation. The current analysis builds upon this work to improve life cycle fresh water consumption estimates and incorporates regional water availability into the resource assessment to improve the identification of areas where future growth in geothermal electricity generation may encounter water challenges.

  16. Urban ideograms

    E-Print Network [OSTI]

    Luarasi, Skender, 1976-

    2005-01-01

    This thesis offers the concept of Urban Ideograms. It is developed and crystallized through a strategic gathering and selection of specific textual and contextual information from various sources, such as the drawings of ...

  17. Flexible urbanism

    E-Print Network [OSTI]

    Anandam, Anahita

    2006-01-01

    This thesis seeks to find a new approach/method towards urbanization in existing low density neighborhoods in major metropolitan cities in the United States. The near South side of the city of Chicago (a city that carries ...

  18. Real Power and Reactive Power Control of a Three-Phase Single-Stage-PV System and PV voltage Stability

    SciTech Connect (OSTI)

    Li, Huijuan; Xu, Yan; Adhikari, Sarina; Rizy, D Tom; Li, Fangxing; Irminger, Philip

    2012-01-01

    Grid-connected photovoltaic (PV) systems with power electronic interfaces can provide both real and reactive power to meet power system needs with appropriate control algorithms. This paper presents the control algorithm design for a three-phase single-stage grid-connected PV inverter to achieve either maximum power point tracking (MPPT) or a certain amount of real power injection, as well as the voltage/var control. The switching between MPPT control mode and a certain amount of real power control mode is automatic and seamless. Without the DC-to-DC booster stage, PV DC voltage stability is an important issue in the control design especially when the PV inverter is operating at maximum power point (MPP) with voltage/var control. The PV DC voltage collapse phenomenon and its reason are discussed. The method based on dynamic correction of the PV inverter output is proposed to ensure PV DC voltage stability. Simulation results of the single-stage PV system during system disturbances and fast solar irradiation changes confirm that the proposed control algorithm for single-stage PV inverters can provide appropriate real and reactive power services and ensure PV DC voltage stability during dynamic system operation and atmospheric conditions.

  19. A two-genome microarray for the rice pathogens Xanthomonas oryzae pv. oryzae and X. oryzae pv. oryzicola and its use in the discovery of a difference in their regulation of hrp genes.

    E-Print Network [OSTI]

    2008-01-01

    of Xanthomonas oryzae pv. oryzae hrp Genes in XOM2, a Novelin Xanthomonas oryzae pv. oryzae. Journal of bacteriologyrice by Xanthomonas oryzae pv. oryzicola. Mol Plant-Microbe

  20. Extensions of models of PV Jan Kraj'icek \\Lambda

    E-Print Network [OSTI]

    Krajíèek, Jan

    Extensions of models of PV Jan Kraj'iŸcek \\Lambda Mathematical Institute and Institute of Computer Science Academy of Sciences of the Czech Republic Abstract We prove that certain models of PV in which NP 6` P=poly have a \\Pi b 1 ­elementary extension to a model of (PV and) NP 6` coNP=poly. If S2 proves

  1. Power Systems Engineering Research Center Modeling, Analysis and Deployment of High PV

    E-Print Network [OSTI]

    Van Veen, Barry D.

    Power Systems Engineering Research Center Modeling, Analysis and Deployment of High PV Penetration with field measurements. The model corresponds to an actual PV and DAS installation by Arizona Public Service and about 125 rooftop residential PV systems and two large scale PV systems. The total installed PV capacity

  2. The following contribution was presented at the 28. European PV Solar Energy Conference and Exhibition

    E-Print Network [OSTI]

    The following contribution was presented at the 28. European PV Solar Energy Conference, Paris, France, 30th Sep. -3rd Oct. 2013, 4DO.2.1 1 IMPACT OF TRANSPORTATION ON SILICON WAFER-BASED PV: Before a PV module is integrated into a PV system it has to be handled and transported. This part of a PV

  3. EXECUTIVE SUMMARY: RETHINKING STANDBY & FIXED COST CHARGES REGULATORY & RATE DESIGN PATHWAYS TO DEEPER SOLAR PV COST

    E-Print Network [OSTI]

    PV technology, however, PV-specific charges will negatively impact the solar PV cost reduction goals TO DEEPER SOLAR PV COST REDUCTIONS The Current Terrain In recent years, electric utilities have experienced business models almost exclusively to the rapid growth of distributed solar PV. This focus has led

  4. Keywords: Photovoltaic System, fault-tolerance, recon-figurable PV panel

    E-Print Network [OSTI]

    Pedram, Massoud

    1 Keywords: Photovoltaic System, fault-tolerance, recon- figurable PV panel Photovoltaic (PV and the advancement of PV device technologies. PV systems have been widely deployed in electric vehicles, homes, power plants, and satellites. The output power of a PV cell (also called solar cell) is dependent on the solar

  5. The Impact of Rate Design and Net Metering on the Bill Savings from Distributed PV for Residential Customers in California

    E-Print Network [OSTI]

    Darghouth, Naim

    2010-01-01

    distributed photovoltaics (PV) adoption. 1 Though specificfor supporting distributed PV adoption. 11 Though specificin distributed PV, which could thwart broader adoption. Many

  6. Global Solar Photovoltaic (PV) Installation Market to be Propelled...

    Open Energy Info (EERE)

    Global Solar Photovoltaic (PV) Installation Market to be Propelled by Greater Concerns over Carbon Footprint Home > Groups > Renewable Energy RFPs John55364's picture Submitted by...

  7. Transforming PV Installations toward Dispatchable, Schedulable Energy Solutions

    Office of Energy Efficiency and Renewable Energy (EERE)

    Advanced Energy (AE) will address three important needs in the further deployment of photovoltaic (PV) systems: 1) demonstrating and commercializing a new anti-islanding method utilizing Phasor...

  8. Smart-Grid Ready PV Inverters with Utility Communication

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

    INTEGRATION Smart-Grid Ready PV Inverters with Utility Communication Electric Power Research Institute Brian Seal, Tom Key, Aminul Huque, Lindsey Rogers Technical Contact Brian...

  9. Instrumentation for Evaluating PV System Performance Losses from Snow: Preprint

    SciTech Connect (OSTI)

    Marion, B.; Rodriguez, J.; Pruett, J.

    2009-04-01

    Describes the use of a pyranometer with a heater and a digital camera to determine losses related to snow for PV systems located at National Renewable Energy Laboratory.

  10. NREL: News - NREL Releases Report Describing Guidelines for PV...

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

    Printable Version News Release NR-1615 NREL Releases Report Describing Guidelines for PV Manufacturer Quality Assurance International task force aims to toughen standards,...

  11. NREL: News - NREL Supports China PV Investment and Financing...

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

    Newsroom Bookmark and Share Printable Version News Release NR-2115 NREL Supports China PV Investment and Financing Alliance to Open Capital for Solar Deployment May 14, 2015 The...

  12. High?Penetration PV with Advanced Power Conditioning Systems

    Office of Energy Efficiency and Renewable Energy (EERE)

    Virginia Polytechnic Institute and State University (VT) is evaluating the impacts of high photovoltaic (PV) penetration and methods to manage any impacts with improved power conditioning equipment.

  13. Solar America Initiative (SAI) PV Technology Incubator Program: Preprint

    SciTech Connect (OSTI)

    Keyes, B.; Symko-Davies, M.; Mitchell, R.; Ullal H.; von Roedern, B.; Greene, L.; Stephens, S.

    2008-05-01

    The SAI PV Technology Incubator Program is designed to accelerate technologies/prodesses that have successfully demonstrated a proof-of-concept/process in a laboratory.

  14. Water Impacts of High Solar PV Electricity Penetration

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

    Water Impacts of High Solar PV Electricity Penetration Jordan Macknick and Stuart Cohen National Renewable Energy Laboratory (NREL) Technical Report NRELTP-6A20-63011 September...

  15. Estimating Rooftop Suitability for PV: A Review of Methods, Patents...

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

    For researchers looking to understand the market potential of rooftop-installed photovoltaics (PV) in particular, understanding the amount and characteristics of rooftop space...

  16. Sandia Energy - Sandia Will Host PV Bankability Workshop at Solar...

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

    Will Host PV Bankability Workshop at Solar Power International (SPI) 2013 Home Renewable Energy Energy Facilities Grid Integration Partnership News Distribution Grid Integration...

  17. Sandia Energy - PV Performance Modeling Collaborative's New and...

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

    Modeling & Simulation Solar Newsletter Photovoltaic Systems Evaluation Laboratory (PSEL) PV Performance Modeling Collaborative's New and Improved Website Is Launched Previous Next...

  18. Sandia Energy - Sandia to host PV Bankability workshop at Solar...

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

    host PV Bankability workshop at Solar Power International (SPI) 2013 Home Renewable Energy Energy Events Workshops News & Events Solar Conferences Seminars & Conferences Sandia to...

  19. NREL Supports China PV Investment and Financing Alliance to Open...

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

    Supports China PV Investment and Financing Alliance to Open Capital for Solar Deployment May 14, 2015 The Energy Department's National Renewable Energy Laboratory (NREL) and the...

  20. Maricopa Assn. of Governments - PV and Solar Domestic Water Heating...

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

    necessary electricalbuilding permits for residential (single-family) and commercial PV systems. These procedures are a part of the MAG Building Code Standards. The standards...

  1. PV Arc Fault Detector Challenges Due to Module Frequency Response...

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

    This poster does not contain any proprietary or confidential information. Introduction PV system arc faults have led to a number of rooftop fires which have caused significant...

  2. Strategic Sequencing for State Distributed PV Policies: A Quantitative...

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

    in spurring the development of customer-sited distributed generation (DG), in particular solar photovoltaic (PV) markets. Prompted by that interest, this analysis examines the use...

  3. Maps | Department of Energy

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

    Potential The Falling Price of Utility-Scale Solar Photovoltaic (PV) Projects The Falling Price of Utility-Scale Solar Photovoltaic (PV) Projects History of the Lightbulb History...

  4. Development of a Dispatchable PV Peak Shainv System. PV: Bonus Program - Phase 1 Report. Volume 1

    SciTech Connect (OSTI)

    1995-10-01

    This report summarizes the work performed by Delmarva Power and Light and its subcontractors in Phase 1 of the US Department of Energy's PV:BONUS Program. The purpose of the program is to develop products and systems for buildings which utilize photovoltaic (N) technology. Beginning with a cooperative research effort with the University of Delaware's Center for Energy and Environmental Policy Research Delmarva Power developed and demonstrated the concept of Dispatchable PV Peak Shaving. This concept and the system which resulted horn the development work are unique from other grid-connected PV systems because it combines a PV, battery energy storage, power conversion and control technologies into an integrated package. Phase 1 began in July 1993 with the installation of a test and demonstration system at Delmarva's Northern Division General Office building near Newark, Delaware. Following initial testing throughout the summer and fall of 1993, significant modifications were made under an amendment to the DOE contract. Work on Phase 1 concluded in the early spring of 1995. Significant progress towards the goal of commercializing the system was made during Phase 1, and is summarized. Based on progress in Phase 1, a proposal to continue the work in Phase 2 was submitted to the US DOE in May 1995. A contract amendment and providing funds for the Phase 2 work is expected in July 1995.

  5. Zhonghuite PV Technology Co | Open Energy Information

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page| Open Energy Information Serbia-EnhancingEtGeorgia:Illinois:WizardYates County,Zena, New York:ShuqimengZhonghuite PV

  6. Integrating Solar PV in Utility System Operations

    SciTech Connect (OSTI)

    Mills, A.; Botterud, A.; Wu, J.; Zhou, Z.; Hodge, B-M.; Heany, M.

    2013-10-31

    This study develops a systematic framework for estimating the increase in operating costs due to uncertainty and variability in renewable resources, uses the framework to quantify the integration costs associated with sub-hourly solar power variability and uncertainty, and shows how changes in system operations may affect these costs. Toward this end, we present a statistical method for estimating the required balancing reserves to maintain system reliability along with a model for commitment and dispatch of the portfolio of thermal and renewable resources at different stages of system operations. We estimate the costs of sub-hourly solar variability, short-term forecast errors, and day-ahead (DA) forecast errors as the difference in production costs between a case with “realistic” PV (i.e., subhourly solar variability and uncertainty are fully included in the modeling) and a case with “well behaved” PV (i.e., PV is assumed to have no sub-hourly variability and can be perfectly forecasted). In addition, we highlight current practices that allow utilities to compensate for the issues encountered at the sub-hourly time frame with increased levels of PV penetration. In this analysis we use the analytical framework to simulate utility operations with increasing deployment of PV in a case study of Arizona Public Service Company (APS), a utility in the southwestern United States. In our analysis, we focus on three processes that are important in understanding the management of PV variability and uncertainty in power system operations. First, we represent the decisions made the day before the operating day through a DA commitment model that relies on imperfect DA forecasts of load and wind as well as PV generation. Second, we represent the decisions made by schedulers in the operating day through hour-ahead (HA) scheduling. Peaking units can be committed or decommitted in the HA schedules and online units can be redispatched using forecasts that are improved relative to DA forecasts, but still imperfect. Finally, we represent decisions within the operating hour by schedulers and transmission system operators as real-time (RT) balancing. We simulate the DA and HA scheduling processes with a detailed unit-commitment (UC) and economic dispatch (ED) optimization model. This model creates a least-cost dispatch and commitment plan for the conventional generating units using forecasts and reserve requirements as inputs. We consider only the generation units and load of the utility in this analysis; we do not consider opportunities to trade power with neighboring utilities. We also do not consider provision of reserves from renewables or from demand-side options. We estimate dynamic reserve requirements in order to meet reliability requirements in the RT operations, considering the uncertainty and variability in load, solar PV, and wind resources. Balancing reserve requirements are based on the 2.5th and 97.5th percentile of 1-min deviations from the HA schedule in a previous year. We then simulate RT deployment of balancing reserves using a separate minute-by-minute simulation of deviations from the HA schedules in the operating year. In the simulations we assume that balancing reserves can be fully deployed in 10 min. The minute-by-minute deviations account for HA forecasting errors and the actual variability of the load, wind, and solar generation. Using these minute-by-minute deviations and deployment of balancing reserves, we evaluate the impact of PV on system reliability through the calculation of the standard reliability metric called Control Performance Standard 2 (CPS2). Broadly speaking, the CPS2 score measures the percentage of 10-min periods in which a balancing area is able to balance supply and demand within a specific threshold. Compliance with the North American Electric Reliability Corporation (NERC) reliability standards requires that the CPS2 score must exceed 90% (i.e., the balancing area must maintain adequate balance for 90% of the 10-min periods). The combination of representing DA forecast errors in the

  7. Hunan Huayuan PV | Open Energy Information

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on QA:QA J-E-1 SECTION J APPENDIX E LISTStar2-0057-EA JumpDuimen RiverScoring ToolHuaihua Power Group Co Ltd Jump to:PV

  8. Teksun PV Manufacturing Inc | Open Energy Information

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on QA:QA J-E-1 SECTION J APPENDIX ECoop Inc JumpHeter BatterySolarfinMarketMemberI PLLC JumpJumpTecnosignalTeksun PV

  9. Tokyo Electron PV | Open Energy Information

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on QA:QA J-E-1 SECTION J APPENDIX ECoop Inc JumpHeterInformation PolicyTinna Group Jump to:Tokuyama CorporationPV Jump

  10. Solar PV Incentive Programs | Department of Energy

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on Delicious RankADVANCED MANUFACTURINGEnergy BillsNo.Hydrogen4Energy SmoothEquipment CertificationSolarSoft CostsPV

  11. The Open PV Project | Department of Energy

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on Delicious Rank EERE:Financing ToolInternational Affairs,Department of Energy The FinalThisTheThe Open PV Project

  12. All Solar PV | Open Energy Information

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on QA:QA J-E-1 SECTION J APPENDIX E LIST OFAMERICA'S FUTURE.EnergyWoodenDateSA JumpSolar PV Jump to: navigation,

  13. Gansu PV Co Ltd | Open Energy Information

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on QA:QA J-E-1 SECTION J APPENDIX E LIST OFAMERICA'SHeavy ElectricalsFTL Solar JumpNetworkingGAOHGWTianjinJieyuanPV Co Ltd

  14. Generation PV Inc | Open Energy Information

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on QA:QA J-E-1 SECTION J APPENDIX E LIST OFAMERICA'SHeavy ElectricalsFTL SolarGate Solar Jump to:GenDriveMining ActPV Inc

  15. Sandia Energy - PV Modeling & Analysis

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantity ofkandz-cm11 Outreach Home RoomPreservation of Fe(II)Geothermal Energy &WaterNew CREWOnline Abstracts andPV Modeling &

  16. Sandia Energy - PV Value®

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantity ofkandz-cm11 Outreach Home RoomPreservation of Fe(II)Geothermal Energy &WaterNew CREWOnline AbstractsSystems ReliabilityPV

  17. Fatal Flaw Analysis of Utility-Scale Wind Turbine Generators at the West Haymarket Joint Public Agency. A Study Prepared in Partnership with the Environmental Protection Agency for the RE-Powering America's Land Initiative: Siting Renewable Energy on Potentially Contaminated Land and Mine Sites

    SciTech Connect (OSTI)

    Roberts, J. O.; Mosey, G.

    2013-08-01

    Fatal flaw analysis of utility-scale wind turbines at the West Haymarket Joint Public Agency brownfields site in Lincoln, Nebraska, funded by EPA.

  18. Technical and Economic Feasibility Study of Utility-Scale Wind at the Doepke-Holliday Superfund Site. A Study Prepared in Partnership with the Environmental Protection Agency for the RE-Powering America's Land Initiative: Siting Renewable Energy on Potentially Contaminated Land and Mine Sites

    SciTech Connect (OSTI)

    Roberts, J. O.; Mosey, G.

    2013-05-01

    This report is a technical and financial feasibility study of a utility-scale wind turbine on the Doepke Superfund site.

  19. Life Cycle Water Consumption and Water Resource Assessment for Utility-Scale Geothermal Systems: An In-Depth Analysis of Historical and Forthcoming EGS Projects

    SciTech Connect (OSTI)

    Clark, Corrie E.; Harto, Christopher B.; Schroeder, Jenna N.; Martino, Louis E.; Horner, Robert M.

    2013-11-05

    This report is the third in a series of reports sponsored by the U.S. Department of Energy Geothermal Technologies Program in which a range of water-related issues surrounding geothermal power production are evaluated. The first report made an initial attempt at quantifying the life cycle fresh water requirements of geothermal power-generating systems and explored operational and environmental concerns related to the geochemical composition of geothermal fluids. The initial analysis of life cycle fresh water consumption of geothermal power-generating systems identified that operational water requirements consumed the vast majority of water across the life cycle. However, it relied upon limited operational water consumption data and did not account for belowground operational losses for enhanced geothermal systems (EGSs). A second report presented an initial assessment of fresh water demand for future growth in utility-scale geothermal power generation. The current analysis builds upon this work to improve life cycle fresh water consumption estimates and incorporates regional water availability into the resource assessment to improve the identification of areas where future growth in geothermal electricity generation may encounter water challenges. This report is divided into nine chapters. Chapter 1 gives the background of the project and its purpose, which is to assess the water consumption of geothermal technologies and identify areas where water availability may present a challenge to utility-scale geothermal development. Water consumption refers to the water that is withdrawn from a resource such as a river, lake, or nongeothermal aquifer that is not returned to that resource. The geothermal electricity generation technologies evaluated in this study include conventional hydrothermal flash and binary systems, as well as EGSs that rely on engineering a productive reservoir where heat exists, but where water availability or permeability may be limited. Chapter 2 describes the approach and methods for this work and identifies the four power plant scenarios evaluated: a 20-MW EGS binary plant, a 50-MW EGS binary plant, a 10-MW hydrothermal binary plant, and a 50-MW hydrothermal flash plant. The methods focus on (1) the collection of data to improve estimation of EGS stimulation volumes, aboveground operational consumption for all geothermal technologies, and belowground operational consumption for EGS; and (2) the mapping of the geothermal and water resources of the western United States to assist in the identification of potential water challenges to geothermal growth. Chapters 3 and 4 present the water requirements for the power plant life cycle. Chapter 3 presents the results of the current data collection effort, and Chapter 4 presents the normalized volume of fresh water consumed at each life cycle stage per lifetime energy output for the power plant scenarios evaluated. Over the life cycle of a geothermal power plant, from construction through 30 years of operation, the majority of water is consumed by plant operations. For the EGS binary scenarios, where dry cooling was assumed, belowground operational water loss is the greatest contributor depending upon the physical and operational conditions of the reservoir. Total life cycle water consumption requirements for air-cooled EGS binary scenarios vary between 0.22 and 1.85 gal/kWh, depending upon the extent of belowground operational water consumption. The air-cooled hydrothermal binary and flash plants experience far less fresh water consumption over the life cycle, at 0.04 gal/kWh. Fresh water requirements associated with air- cooled binary operations are primarily from aboveground water needs, including dust control, maintenance, and domestic use. Although wet-cooled hydrothermal flash systems require water for cooling, these plants generally rely upon the geofluid, fluid from the geothermal reservoir, which typically has high salinity and total dissolved solids concentration and is much warmer than normal groundwater sources, for their cooling water needs; thus,

  20. Realisation of the full potential of PV Extract of report from workgroup 4 in EU's PV Technology Platform by Peter Ahm.

    E-Print Network [OSTI]

    Realisation of the full potential of PV Extract of report from workgroup 4 in EU's PV Technology. Realisation of the full potential of PV as an important and integral part of our energy supply to those that use it. There is thus an imperative to facilitate and promote education on PV

  1. Analyzing and simulating the variability of solar irradiance and solar PV powerplants

    E-Print Network [OSTI]

    Lave, Matthew S.

    2012-01-01

    We appreciate funding from the DOE High Solar PV PenetrationWe appreciate funding from the DOE High Solar PV PenetrationWe appreciate funding from the DOE High Solar PV Penetration

  2. Comparison Between TRNSYS Software Simulation and PV F-Chart Program on Photovoltaic System 

    E-Print Network [OSTI]

    Haberl, J. S.; Baltazar, J. C.; Mao, C.

    2012-01-01

    This report covers the comparisons of Photovoltaic System by TRNSYS simulation and PV F-Chart program to test TRNSYS simulation accuracy. The report starts with the Photovoltaic (PV) (PV) System introduction in Section one which is followed...

  3. Step-Stress Accelerated Degradation Testing (SSADT) for Photovoltaic (PV) Devices and Cells (Presentation)

    SciTech Connect (OSTI)

    Lee, J.; Elmore, R.; Suh, C.; Jones, W.

    2010-10-01

    Presentation on step-stress accelerated degradation testing (SSADT) for photovoltaics (PV). Developed are a step-stress degradation test (SSADT) for PV reliability tests and a lifetime prediction model for PV products.

  4. City of Anaheim This page outlines solar PV incentives, financing mechanisms, permitting process, and

    E-Print Network [OSTI]

    City of Anaheim This page outlines solar PV incentives, financing mechanisms, permitting process Apply for local permits Install your PV system Arrange for your PV system to be interconnected to your

  5. U.S. Aims for Zero-Energy: Support for PV on New Homes

    E-Print Network [OSTI]

    Barbose, Galen; Wiser, Ryan; Bolinger, Mark

    2006-01-01

    Approved Figure 1. Relative Cost of PV on New, Market-Rateretrofits. The higher cost of PV on individual or smallables Buy-Dow n Program: Cost of PV on New Homes Compared to

  6. New Berkeley Lab Report Tracks a Decade of PV Installed Cost Trends

    E-Print Network [OSTI]

    Barbose, Galen

    2009-01-01

    Tracks a Decade of PV Installed Cost Trends Galen Barbose,in total average PV installed costs since 1998 appears to beNew York) exempted PV hardware costs from state sales tax

  7. Approaches To Integrating A HIgh Penertration Of Solar PV and CPV Onto The Electrical Grid

    E-Print Network [OSTI]

    Hill, Steven Craig

    2013-01-01

    for peaking or base load generation and PV cost. The paper1) the break-even cost of PV is unacceptably high unless PVlarge scale PV inverters due to the cost of energy storage

  8. The Economic Value of PV and Net Metering to Residential Customers in California

    E-Print Network [OSTI]

    Darghouth, Naim

    2010-01-01

    for which TOU Rate is Least Cost PV Penetration Level PG&E (Monthly Netting costs from distributed PV generally suggestsavoided T&D capacity costs from distributed PV have derived

  9. Shaking Up the Residential PV Market: Implications of Recent Changes to the ITC

    E-Print Network [OSTI]

    Bolinger, Mark

    2008-01-01

    Empirical Investigation of PV Cost Trends, and Implicationspart of the cost of supporting residential PV to the federal56% of the installed cost of a commercial PV system, 12 are

  10. Enabling Broad Adoption of Distributed PV-storage systems Via Supervisory Planning & Control

    E-Print Network [OSTI]

    DeForest, Nicholas

    2014-01-01

    impact of wide-spread PV adoption for utilities, by creatingEnabling broad adoption of distributed PV-storage systemsEnabling broad adoption of distributed PV-storage systems

  11. Ectopic expression of rice Xa21 overcomes developmentally controlled resistance to Xanthomonas oryzae pv. oryzae.

    E-Print Network [OSTI]

    2010-01-01

    of Xanthomonas oryzae pv. oryzae AvrXa21 and implicationsto Xanthomonas oryzae pv. oryzae Chang-Jin Park a , Sang-Wonreceptor XA21 Xanthomonas oryzae pv. oryzae a b s t r a c t

  12. Genome sequence and rapid evolution of the rice pathogen Xanthomonas oryzae pv. oryzae PXO99A.

    E-Print Network [OSTI]

    2008-01-01

    relationships among X. oryzae pv. oryzae (Xoo) strains PXO99MAFF311018, and X. oryzae pv. oryzicola (Xoc) strain BLS256biology of Xanthomonas oryzae pv. oryzae and approaches to

  13. U.S. Aims for Zero-Energy: Support for PV on New Homes

    E-Print Network [OSTI]

    Barbose, Galen; Wiser, Ryan; Bolinger, Mark

    2006-01-01

    Figure 1. Relative Cost of PV on New, Market-Rate Homesfor Zero-Energy: Support for PV on New Homes Galen Barbose,segment for solar photovoltaic (PV) adoption, new homes have

  14. Exploring the Economic Value of EPAct 2005's PV Tax Credits

    E-Print Network [OSTI]

    Bolinger, Mark A

    2010-01-01

    to support a greater number PV systems at the reduced grantEconomic Value of EPAct 2005’s PV Tax Credits Mark Bolingerfor grid-connected photovoltaics (PV) in the US has grown

  15. Exploring the Economic Value of EPAct 2005's PV Tax Credits

    E-Print Network [OSTI]

    Bolinger, Mark; Wiser, Ryan; Ing, Edwin

    2006-01-01

    Exploring the Economic Value of EPAct 2005’s PV Tax CreditsEconomic Value of EPAct 2005’s PV Tax Credits Mark Bolingerfor grid-connected photovoltaics (PV) in the US has grown

  16. BRST Invariant PV Regularization of SUSY Yang-Mills and SUGRA

    E-Print Network [OSTI]

    Gaillard, Mary K

    2012-01-01

    September 2011 BRST Invariant PV Regularization of SUSYemployer. ii BRST INVARIANT PV REGULARIZATION OF SUSY YANG-a number of years on Pauli-Villars (PV) regu- larization of

  17. Do PV Systems Increase Residential Selling Prices If So, How Can Practitioners Estimate This Increase?

    E-Print Network [OSTI]

    Hoen, Ben

    2013-01-01

    No. DE-AC02-05CH11231. Do PV Systems Increase Residentialimpacts of photovoltaic (PV) energy systems on home salesthat existing homes with PV systems sold for a premium over

  18. Shaking Up the Residential PV Market: Implications of Recent Changes to the ITC

    E-Print Network [OSTI]

    Bolinger, Mark

    2008-01-01

    Shaking Up the Residential PV Market: Implications of Recentfor commercial photovoltaic (PV) systems from 10% to 30% of2005’s solar tax credits on PV system owners, in light of

  19. The Economic Value of PV and Net Metering to Residential Customers in California

    E-Print Network [OSTI]

    Darghouth, Naim

    2010-01-01

    a Substantial Benefit of Solar PV”, The Electricity Journal,2008. MRW & Associates. “Solar PV and Retail Rate Design”,The Economic Value of PV and Net Metering to Residential

  20. Approaches To Integrating A HIgh Penertration Of Solar PV and CPV Onto The Electrical Grid

    E-Print Network [OSTI]

    Hill, Steven Craig

    2013-01-01

    100] A Study of Dispersed PV Generation on the PSO Systempaper .pdf [148] Solar PV Carousel Trackers For BuildingBOS in an Optimized 3.5 MW PV installation Maon, J. et al.

  1. Approaches To Integrating A HIgh Penertration Of Solar PV and CPV Onto The Electrical Grid

    E-Print Network [OSTI]

    Hill, Steven Craig

    2013-01-01

    63  Off?Grid (Stand?Alone) PV Power System not well established. OFF-GRID (STAND-ALONE) PV POWER SYSTEMvariability characteristics of off-grid PV power systems and

  2. Oxynitride Thin Film Barriers for PV Packaging

    SciTech Connect (OSTI)

    Glick, S. H.; delCueto, J. A.; Terwilliger, K. M.; Jorgensen, G. J.; Pankow, J. W.; Keyes, B. M.; Gedvilas, L. M.; Pern, F. J.

    2005-11-01

    Dielectric thin-film barrier and adhesion-promoting layers consisting of silicon oxynitride materials (SiOxNy, with various stoichiometry) were investigated. For process development, films were applied to glass (TCO, conductive SnO2:F; or soda-lime), polymer (PET, polyethylene terephthalate), aluminized soda-lime glass, or PV cell (a-Si, CIGS) substrates. Design strategy employed de-minimus hazard criteria to facilitate industrial adoption and reduce implementation costs for PV manufacturers or suppliers. A restricted process window was explored using dilute compressed gases (3% silane, 14% nitrous oxide, 23% oxygen) in nitrogen (or former mixtures, and 11.45% oxygen mix in helium and/or 99.999% helium dilution) with a worst-case flammable and non-corrosive hazard classification. Method employed low radio frequency (RF) power, less than or equal to 3 milliwatts per cm2, and low substrate temperatures, less than or equal to 100 deg C, over deposition areas less than or equal to 1000 cm2. Select material properties for barrier film thickness (profilometer), composition (XPS/FTIR), optical (refractive index, %T and %R), mechanical peel strength and WVTR barrier performance are presented.

  3. Grid-tied PV battery systems.

    SciTech Connect (OSTI)

    Barrett, Keith Phillip; Gonzalez, Sigifredo; Hund, Thomas D.

    2010-09-01

    Grid tied PV energy smoothing was implemented by using a valve regulated lead-acid (VRLA) battery as a temporary energy storage device to both charge and discharge as required to smooth the inverter energy output from the PV array. Inverter output was controlled by the average solar irradiance over the previous 1h time interval. On a clear day the solar irradiance power curve is offset by about 1h, while on a variable cloudy day the inverter output power curve will be smoothed based on the average solar irradiance. Test results demonstrate that this smoothing algorithm works very well. Battery state of charge was more difficult to manage because of the variable system inefficiencies. Testing continued for 30-days and established consistent operational performance for extended periods of time under a wide variety of resource conditions. Both battery technologies from Exide (Absolyte) and East Penn (ALABC Advanced) proved to cycle well at a Partial state of charge over the time interval tested.

  4. Impact of residential PV adoption on Retail Electricity Rates

    SciTech Connect (OSTI)

    Cai, DWH; Adlakha, S; Low, SH; De Martini, P; Chandy, KM

    2013-11-01

    The price of electricity supplied from home rooftop photo voltaic (PV) solar cells has fallen below the retail price of grid electricity in some areas. A number of residential households have an economic incentive to install rooftop PV systems and reduce their purchases of electricity from the grid. A significant portion of the costs incurred by utility companies are fixed costs which must be recovered even as consumption falls. Electricity rates must increase in order for utility companies to recover fixed costs from shrinking sales bases. Increasing rates will, in turn, result in even more economic incentives for customers to adopt rooftop PV. In this paper, we model this feedback between PV adoption and electricity rates and study its impact on future PV penetration and net-metering costs. We find that the most important parameter that determines whether this feedback has an effect is the fraction of customers who adopt PV in any year based solely on the money saved by doing so in that year, independent of the uncertainties of future years. These uncertainties include possible changes in rate structures such as the introduction of connection charges, the possibility of PV prices dropping significantly in the future, possible changes in tax incentives, and confidence in the reliability and maintainability of PV. (C) 2013 Elsevier Ltd. All rights reserved.

  5. The PV Song As first performed at the Cambridge GEFD

    E-Print Network [OSTI]

    Cambridge, University of

    The PV Song As first performed at the Cambridge GEFD Summer School, Friday 22 Sept 2006 RevisedLennon-McCartney-Nielsen-Wagner-McIntyre Lyrics by Nick Hall and John Thuburn The PV Song First performed at the Cambridge GEFD Summer School

  6. Encouraging PV Adoption in New Market-Rate Residential Construction: A Critical Review of Program Experiences to Date

    E-Print Network [OSTI]

    Barbose, Galen; Wiser, Ryan; Bolinger, Mark

    2006-01-01

    ENCOURAGING PV ADOPTION IN NEW MARKET-RATE RESIDENTIALAs a market segment for PV adoption, new homes have a numberPV as an option is that PV adoption then becomes contingent

  7. Status of High Performance PV: Polycrystalline Thin-Film Tandems

    SciTech Connect (OSTI)

    Symko-Davies, M.

    2005-02-01

    The High-Performance Photovoltaic (HiPerf PV) Project was initiated by the U.S. Department of Energy to substantially increase the viability of photovoltaics (PV) for cost-competitive applications so that PV can contribute significantly to our energy supply and our environment. The HiPerf PV Project aims at exploring the ultimate performance limits of existing PV technologies, approximately doubling their sunlight-to-electricity conversion efficiencies during its course. This work includes bringing thin-film cells and modules toward 25% and 20% efficiencies, respectively, and developing multijunction concentrator cells and modules able to convert more than one-third of the sun's energy to electricity (i.e., 33% efficiency). This paper will address recent accomplishments of the NREL in-house research effort involving polycrystalline thin-film tandems, as well as the research efforts under way in the subcontracted area.

  8. Physical Effects of Distributed PV Generation on California's Distribution System

    E-Print Network [OSTI]

    Cohen, Michael A

    2015-01-01

    Deployment of high-penetration photovoltaic (PV) power is expected to have a range of effects -- both positive and negative -- on the distribution grid. The magnitude of these effects may vary greatly depending upon feeder topology, climate, PV penetration level, and other factors. In this paper we present a simulation study of eight representative distribution feeders in three California climates at PV penetration levels up to 100\\%, supported by a unique database of distributed PV generation data that enables us to capture the impact of PV variability on feeder voltage and voltage regulating equipment. When comparing the influence of feeder location (i.e. climate) versus feeder type on outcomes, we find that location more strongly influences the incidence of reverse power flow, reductions in peak loading and the presence of voltage excursions. On the other hand, we find that feeder characteristics more strongly influence the magnitude of loss reduction and changes in voltage regulator operations. We find th...

  9. A Wavelet-Based Variability Model (WVM) for Solar PV Power Plants

    E-Print Network [OSTI]

    Lave, Matthew; Kleissl, Jan; Stein, Joshua S

    2013-01-01

    Model (WVM) for Solar PV Power Plants Matthew Lave, Jansolar photovoltaic (PV) power plant output given a singleproduce a simulated power plant output. The WVM is validated

  10. Analyzing and simulating the variability of solar irradiance and solar PV powerplants

    E-Print Network [OSTI]

    Lave, Matthew S.

    2012-01-01

    Models of diffuse solar radiation, Renew Energ, 33 (2008) [solar irradiance for analyzing areally- totalized PV systems, Sol Energsolar irradiance for analyzing areally- totalized PV systems, Sol Energ

  11. Linkage to Previous International PV Module QA Task Force Workshops; Proposal for Rating System (Presentation)

    SciTech Connect (OSTI)

    Kurtz, S.; Wohlgemuth, J.; Sample, T.; Yamamichi, M.; Kondo, M.

    2013-05-01

    This presentation gives the historical background of the creation of the International PV QA Task Force as an introduction to the PV Module Reliability Workshop.

  12. Pseudomonas syringae pv. syringae Uses Proteasome Inhibitor Syringolin A to Colonize from Wound Infection

    E-Print Network [OSTI]

    Pseudomonas syringae pv. syringae Uses Proteasome Inhibitor Syringolin A to Colonize from Wound syringae pv. syringae Uses Proteasome Inhibitor Syringolin A to Colonize from Wound Infection Sites. PLo

  13. Analytical Improvements in PV Degradation Rate Determination

    SciTech Connect (OSTI)

    Jordan, D. C.; Kurtz, S. R.

    2011-02-01

    As photovoltaic (PV) penetration of the power grid increases, it becomes vital to know how decreased power output may affect cost over time. In order to predict power delivery, the decline or degradation rates must be determined accurately. For non-spectrally corrected data several complete seasonal cycles (typically 3-5 years) are required to obtain reasonably accurate degradation rates. In a rapidly evolving industry such a time span is often unacceptable and the need exists to determine degradation rates accurately in a shorter period of time. Occurrence of outliers and data shifts are two examples of analytical problems leading to greater uncertainty and therefore to longer observation times. In this paper we compare three methodologies of data analysis for robustness in the presence of outliers, data shifts and shorter measurement time periods.

  14. Innovations in Wind and Solar PV Financing

    SciTech Connect (OSTI)

    Cory, K.; Coughlin, J.; Jenkin, T.; Pater, J.; Swezey, B.

    2008-02-01

    There is growing national interest in renewable energy development based on the economic, environmental, and security benefits that these resources provide. Historically, greater development of our domestic renewable energy resources has faced a number of hurdles, primarily related to cost, regulation, and financing. With the recent sustained increase in the costs and associated volatility of fossil fuels, the economics of renewable energy technologies have become increasingly attractive to investors, both large and small. As a result, new entrants are investing in renewable energy and new business models are emerging. This study surveys some of the current issues related to wind and solar photovoltaic (PV) energy project financing in the electric power industry, and identifies both barriers to and opportunities for increased investment.

  15. Kauai Island Utility Co-op (KIUC) PV integration study.

    SciTech Connect (OSTI)

    Ellis, Abraham; Mousseau, Tom

    2011-08-01

    This report investigates the effects that increased distributed photovoltaic (PV) generation would have on the Kauai Island Utility Co-op (KIUC) system operating requirements. The study focused on determining reserve requirements needed to mitigate the impact of PV variability on system frequency, and the impact on operating costs. Scenarios of 5-MW, 10-MW, and 15-MW nameplate capacity of PV generation plants distributed across the Kauai Island were considered in this study. The analysis required synthesis of the PV solar resource data and modeling of the KIUC system inertia. Based on the results, some findings and conclusions could be drawn, including that the selection of units identified as marginal resources that are used for load following will change; PV penetration will displace energy generated by existing conventional units, thus reducing overall fuel consumption; PV penetration at any deployment level is not likely to reduce system peak load; and increasing PV penetration has little effect on load-following reserves. The study was performed by EnerNex under contract from Sandia National Laboratories with cooperation from KIUC.

  16. Optimal Solar PV Arrays Integration for Distributed Generation

    SciTech Connect (OSTI)

    Omitaomu, Olufemi A; Li, Xueping

    2012-01-01

    Solar photovoltaic (PV) systems hold great potential for distributed energy generation by installing PV panels on rooftops of residential and commercial buildings. Yet challenges arise along with the variability and non-dispatchability of the PV systems that affect the stability of the grid and the economics of the PV system. This paper investigates the integration of PV arrays for distributed generation applications by identifying a combination of buildings that will maximize solar energy output and minimize system variability. Particularly, we propose mean-variance optimization models to choose suitable rooftops for PV integration based on Markowitz mean-variance portfolio selection model. We further introduce quantity and cardinality constraints to result in a mixed integer quadratic programming problem. Case studies based on real data are presented. An efficient frontier is obtained for sample data that allows decision makers to choose a desired solar energy generation level with a comfortable variability tolerance level. Sensitivity analysis is conducted to show the tradeoffs between solar PV energy generation potential and variability.

  17. PV Validation and Bankability Workshop: San Jose, California

    SciTech Connect (OSTI)

    Granata, J.; Howard, J.

    2011-12-01

    This report is a collaboration between Sandia National Laboratories, the National Renewable Energy Laboratory, and the Florida Solar Energy Center (FSEC). The report provides feedback from the U.S. Department of Energy's (DOE) Solar Program PV Validation and Bankability Workshop in San Jose, California on August 31, 2011. It focuses on the current state of PV in the United States, private funding to fund U.S. PV industry growth, roles and functions of the regional test center program, and ways to improve the current validation and bankability practices.

  18. ENERGY-10 PV: Photovoltaics, A New Capability (Preprint)

    SciTech Connect (OSTI)

    Balcomb, J.D.; Hayter, S.J.; Weaver, N.L.

    2001-02-16

    This is one of two companion papers that describe the ENERGY-10 PV design-tool computer simulation program. The other paper is titled ''Hourly Simulation of Grid-Connected PV Systems Using Realistic Building Loads.'' While this paper focuses on the implementation method, the companion paper focuses on the PV aspects of the program. The case study in this paper is a residential building application, whereas the case study in the companion paper is a commercial application with an entirely different building load characteristic. Together, they provide a balanced view.

  19. Identifying Critical Pathways to High-Performance PV: Preprint

    SciTech Connect (OSTI)

    Symko-Davies, M.; Noufi, R.; Kurtz, S.

    2002-05-01

    This conference paper describes the High-Performance Photovoltaic (HiPerf PV)Project was initiated by the U.S. Department of Energy to substantially increase the viability of photovoltaics (PV) for cost-competitive applications so that PV can contribute significantly to our energy supply and our environment in the 21st century. To accomplish this, the NCPV directs in-house and subcontracted research in high-performance polycrystalline thin-film and multijunction concentrator devices. Details of the subcontractor and in-house progress will be described toward identifying critical pathways of 25% polycrystalline thin-film tandem cells and developing multijunction concentrator modules to 33%.

  20. 66 IAEI NEWS September.October 2004 www.iaei.org PERSPECTIVES ON PV

    E-Print Network [OSTI]

    Johnson, Eric E.

    66 IAEI NEWS September.October 2004 www.iaei.org PERSPECTIVES ON PV A t first glance, the obvious answer is: Photovol- taic (PV) systems are no different from other electrical power systems critical is grounding PV systems? Let us examine the various features of PV systems that relate

  1. 80 IAEI NEWS May . June 2012 www.iaei.org Microinverters and ac Pv Modules

    E-Print Network [OSTI]

    Johnson, Eric E.

    80 IAEI NEWS May . June 2012 www.iaei.org Microinverters and ac Pv Modules M icroinverters and AC PV modules are becom- ing very common in residential and small commercial PV systems. See photos 1 and 2. They have even been used in PV systems rated at 60 kW and above. They have some common features

  2. 28 IAEI NEWS May.June 2005 www.iaei.org PERSPECTIVES ON PV

    E-Print Network [OSTI]

    Johnson, Eric E.

    28 IAEI NEWS May.June 2005 www.iaei.org PERSPECTIVES ON PV #12;www.iaei.org May.June 2005 IAEI NEWS 29 PERSPECTIVES ON PV I nspectors are more and more frequently faced with permitting or inspecting PV-qualified people are installing many excellent, code-compliant PV systems, others are designing and installing

  3. 18 IAEI NEWS November.December 2004 www.iaei.org PERSPECTIVES ON PV

    E-Print Network [OSTI]

    Johnson, Eric E.

    18 IAEI NEWS November.December 2004 www.iaei.org PERSPECTIVES ON PV Photo 1. Framed PV modules A series of articles on photovoltaic (PV) power systems and the National Electrical Code by John Wiles Stalking the Elusive and Somewhat Strange PV System #12;www.iaei.org November.December 2004 IAEI NEWS 19

  4. Robust control strategy for PV system integration in distribution systems M.J. Hossain a,

    E-Print Network [OSTI]

    Pota, Himanshu Roy

    Robust control strategy for PV system integration in distribution systems M.J. Hossain a, , T t s " Robust control provides flexible photovoltaic (PV) accommodations. " A robust PV control can significantly enhance the penetration level. " The change in volatile PV generations is considered

  5. 12 IAEI NEWS July.August 2004 www.iaei.org PERSPECTIVES ON PV

    E-Print Network [OSTI]

    Johnson, Eric E.

    12 IAEI NEWS July.August 2004 www.iaei.org PERSPECTIVES ON PV A series of articles on photovoltaic (PV) power systems and the National Electrical Code Single Conductor Exposed Cables! Not In My or commercial PV installation. Yes, PV systems have some unusual wiring meth- ods allowed by the Code. However

  6. PV i Undervisningen EFP 33033-0174 Version 02 2 PA Energy A/S

    E-Print Network [OSTI]

    PV i Undervisningen EFP 33033-0174 Version 02 2 PA Energy A/S Bilag 7.6 European Survey of PV Education and Training #12;PV i Undervisningen EFP 33033-0174 Version 02 3 PA Energy A/S European Survey of PV Education and Training Med den voksende interesse for og relevans af vedvarende

  7. Do PV Systems Increase Residential Selling Prices If So, How Can Practitioners Estimate This Increase?

    E-Print Network [OSTI]

    Hoen, Ben

    2013-01-01

    of Photovoltaic Energy Systems on Residential Selling Pricesof photovoltaic (PV) energy systems on home sales prices.

  8. CREATING DYNAMIC EQUIVALENT PV CIRCUIT MODELS WITH IMPEDANCE SPECTROSCOPY FOR ARC FAULT MODELING

    E-Print Network [OSTI]

    CREATING DYNAMIC EQUIVALENT PV CIRCUIT MODELS WITH IMPEDANCE SPECTROSCOPY FOR ARC FAULT MODELING ® (NEC® ) requires new photovoltaic (PV) systems on or penetrating a building to include a listed arc of the arcing frequencies through PV components despite the potential for modules and other PV components

  9. Modeling and Simulation of Solar PV Arrays under Changing Illumination Conditions

    E-Print Network [OSTI]

    Lehman, Brad

    Modeling and Simulation of Solar PV Arrays under Changing Illumination Conditions Dzung D Nguyen shadows (a passing cloud) on the output power of solar PV arrays. Each solar array is composed of a matrix of a shaded solar PV array as well as the PV output power. The model is also able to simulate and compute

  10. PV-PPV: Parameter Variability Aware, Automatically Extracted, Nonlinear Time-Shifted Oscillator Macromodels

    E-Print Network [OSTI]

    Roychowdhury, Jaijeet

    Impact of residential PV adoption on Retail Electricity Rates Desmond W.H. Cai a,n , Sachin Adlakha of Technology, 1200 E. California Blvd., Pasadena, CA 91106, USA H I G H L I G H T S Households who install PV to adopt PV. We find that this feedback has significant impact on PV uptake only in later years. Utility

  11. Multiple Jets as PV Staircases: The Phillips Effect and the Resilience of Eddy-Transport Barriers

    E-Print Network [OSTI]

    Cambridge, University of

    Multiple Jets as PV Staircases: The Phillips Effect and the Resilience of Eddy-Transport Barriers D 2007) ABSTRACT A review is given that focuses on why the sideways mixing of potential vorticity (PV. PV mixing often produces a sideways layering or banding of the PV distribution and therefore

  12. Parametric Study of PV Arc-Fault Generation Methods and Analysis of Conducted DC Spectrum

    E-Print Network [OSTI]

    Parametric Study of PV Arc-Fault Generation Methods and Analysis of Conducted DC Spectrum Jay photovoltaic (PV) direct current (DC) arc- fault detectors use the frequency content of the PV system to detect by different PV arcs in the field. In this investigation, we (a) discuss the differences in establishing

  13. PV Derived Data for Predicting Performance; NREL (National Renewable Energy Laboratory)

    SciTech Connect (OSTI)

    Marion, Bill

    2015-09-14

    A method is described for providing solar irradiance data for modeling PV performance by using measured PV performance data and back-solving for the unknown direct normal irradiance (DNI) and diffuse horizontal irradiance (DHI), which can then be used to model the performance of PV systems of any size, PV array tilt, or PV array azimuth orientation. Ideally situated for using the performance data from PV modules with micro-inverters, the PV module operating current is used to determine the global tilted irradiance (GTI), and a separation model is then used to determine the DNI and DHI from the GTI.

  14. Interconnecting PV on New York City's Secondary Network Distribution System

    SciTech Connect (OSTI)

    Anderson, K.; Coddington, M.; Burman, K.; Hayter, S.; Kroposki, B.; Watson, A.

    2009-12-01

    This study describes technical assistance provided by NREL to help New York City and Con Edison improve the interconnection of distributed PV systems on a secondary network distribution system.

  15. City of Shasta Lake Electric Utility- PV Rebate Program

    Broader source: Energy.gov [DOE]

    City of Shasta Lake Electric Utility is providing rebates to their customers for the purchase of photovoltaic (PV) systems. The rebate levels will decrease annually over the life of the program. ...

  16. Instrumentation for Evaluating PV System Performance Losses from Snow

    SciTech Connect (OSTI)

    Marion, B.; Rodriguez, J.; Pruett, J.

    2009-01-01

    When designing a photovoltaic (PV) system for northern climates, the prospective installation should be evaluated with respect to the potentially detrimental effects of snow preventing solar radiation from reaching the PV cells. The extent to which snow impacts performance is difficult to determine because snow events also increase the uncertainty of the solar radiation measurement, and the presence of snow needs to be distinguished from other events that can affect performance. This paper describes two instruments useful for evaluating PV system performance losses from the presence of snow: (1) a pyranometer with a heater to prevent buildup of ice and snow, and (2) a digital camera for remote retrieval of images to determine the presence of snow on the PV array.

  17. AEP SWEPCO - SMART Source Solar PV Program | Department of Energy

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

    Amount Residential: 1.50watt DC Non-residential: 1.20watt DC Provider Smart Source PV Program Southwestern Electric Power Company (SWEPCO) offers rebates to customers that...

  18. Giant Leap Forward Toward Quality Assurance of PV Modules (Presentation)

    SciTech Connect (OSTI)

    Kurtz, S.; Wohlgemuth, J.; Sample, T.; Yamamichi, M.

    2012-03-01

    The presentation describes the composition of and motivation for the International PV QA Task Force, then describes the presentations and discussion that occurred at the workshop on Feb. 29th, 2012.

  19. Integrating Solar PV into Energy Services Performance Contracts...

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

    can use performance contracts to finance the purchase of a commercial-scale rooftop PV system with limited to no upfront cost, and a series of suggested best practices for...

  20. Interconnecting PV on New York City's Secondary Network Distribution System

    SciTech Connect (OSTI)

    K. Anderson; M. Coddington; K. Burman; S. Hayter; B. Kroposki; and A. Watson

    2009-11-30

    The U.S. Department of Energy (DOE) has teamed with cities across the country through the Solar America Cities (SAC) partnership program to help reduce barriers and accelerate implementation of solar energy. The New York City SAC team is a partnership between the City University of New York (CUNY), the New York City Mayor s Office of Long-term Planning and Sustainability, and the New York City Economic Development Corporation (NYCEDC).The New York City SAC team is working with DOE s National Renewable Energy Laboratory (NREL) and Con Edison, the local utility, to develop a roadmap for photovoltaic (PV) installations in the five boroughs. The city set a goal to increase its installed PV capacity from1.1 MW in 2005 to 8.1 MW by 2015 (the maximum allowed in 2005). A key barrier to reaching this goal, however, is the complexity of the interconnection process with the local utility. Unique challenges are associated with connecting distributed PV systems to secondary network distribution systems (simplified to ���¢��������networks���¢������� in this report). Although most areas of the country use simpler radial distribution systems to distribute electricity, larger metropolitan areas like New York City typically use networks to increase reliability in large load centers. Unlike the radial distribution system, where each customer receives power through a single line, a network uses a grid of interconnected lines to deliver power to each customer through several parallel circuits and sources. This redundancy improves reliability, but it also requires more complicated coordination and protection schemes that can be disrupted by energy exported from distributed PV systems. Currently, Con Edison studies each potential PV system in New York City to evaluate the system s impact on the network, but this is time consuming for utility engineers and may delay the customer s project or add cost for larger installations. City leaders would like to streamline this process to facilitate faster, simpler, and less expensive distributed PV system interconnections. To assess ways to improve the interconnection process, NREL conducted a four-part study with support from DOE. The NREL team then compiled the final reports from each study into this report. In Section 1���¢��������PV Deployment Analysis for New York City���¢��������we analyze the technical potential for rooftop PV systems in the city. This analysis evaluates potential PV power production in ten Con Edison networks of various locations and building densities (ranging from high density apartments to lower density single family homes). Next, we compare the potential power production to network loads to determine where and when PV generation is most likely to exceed network load and disrupt network protection schemes. The results of this analysis may assist Con Edison in evaluating future PV interconnection applications and in planning future network protection system upgrades. This analysis may also assist other utilities interconnecting PV systems to networks by defining a method for assessing the technical potential of PV in the network and its impact on network loads. Section 2���¢��������A Briefing for Policy Makers on Connecting PV to a Network Grid���¢��������presents an overview intended for nontechnical stakeholders. This section describes the issues associated with interconnecting PV systems to networks, along with possible solutions. Section 3���¢��������Technical Review of Concerns and Solutions to PV Interconnection in New Y

  1. Taunton Municipal Lighting Plant- Residential PV Rebate Program

    Office of Energy Efficiency and Renewable Energy (EERE)

    Customers of Taunton Municipal Lighting Plant (TMLP) may be eligible for a $1.50/watt rebate on solar photovoltaic (PV) installations, up to a maximum rebate of $4,500. The system must be installed...

  2. Loan Guarantees for Three California PV Solar Plants Expected...

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

    Tempe, Arizona, is sponsoring all three projects and will supply them with Cd-Te thin film solar PV modules -- also known as solar panels -- from a new Mesa, Arizona,...

  3. Impact of Soiling and Pollution on PV Generation Performance

    Broader source: Energy.gov [DOE]

    This 5-page technical letter addresses air pollution effects on PV performance by quantifying, based on a literature search, the average annual loss due to soiling, the impact of cleaning, and a recommended cleaning schedule.

  4. Tucson's Solar Experience: Developing PV with RFPs and PPAs

    Office of Energy Efficiency and Renewable Energy (EERE)

    This presentation was given January 15, 2013, by Bruce Plenk, Solar Coordinator for the City of Tucson, Arizona, as part of the CommRE Developing PV Projects With RFPs and PPAs webinar.

  5. Plug and Play Solar PV for American Homes

    Office of Energy Efficiency and Renewable Energy (EERE)

    The Fraunhofer Center for Sustainable Energy Systems (CSE) will develop a new plug-and-play PV system that self-checks for proper installation and safety and communicates with the local utility and...

  6. Time-dependent first-principles approaches to PV materials

    SciTech Connect (OSTI)

    Miyamoto, Yoshiyuki

    2013-12-10

    Computational scheme for designing photovoltaic (PV) materials is presented. First-principles electron dynamics of photo-excitation and subsequent electron-hole splitting is performed based on the time-dependent density functional theory. Photo-induced enhancement of dipole moment was observed in a polar crystal and a donor-acceptor molecular pair. These experiences will pave a way to design PV material from first-principles simulations.

  7. Microgrid-Ready Solar PV; NREL (National Renewable Energy Laboratory)

    SciTech Connect (OSTI)

    2015-07-01

    Designing new solar projects to be 'microgrid-ready' enables the U.S. DoD, other federal agencies, and the private sector to plan future microgrid initiatives to utilize solar PV as a generating resource. This fact sheet provides background information with suggested language for several up-front considerations that can be added to a solar project procurement or request for proposal (RFP) that will help ensure that PV systems are built for future microgrid connection.

  8. How Can We Make PV Modules Safer?: Preprint

    SciTech Connect (OSTI)

    Wohlgemuth, J. H.; Kurtz, S. R.

    2012-06-01

    Safety is a prime concern for the photovoltaics (PV) industry. As a technology deployed on residential and commercial buildings, it is critical that PV not cause damage to the buildings nor harm the occupants. Many of the PV systems on buildings are of sufficiently high voltage (300 to 600 Volts dc) that they may present potential hazards. These PV systems must be safe in terms of mechanical damage (nothing falls on someone), shock hazard (no risk of electrical shock when touching an exposed circuit element), and fire (the modules neither cause nor promote a fire). The present safety standards (IEC 61730 and UL 1703) do a good job of providing for design rules and test requirements for mechanical, shock, and spread of flame dangers. However, neither standard addresses the issue of electrical arcing within a module that can cause a fire. To make PV modules, they must be designed, built, and installed with an emphasis on minimizing the potential for open circuits and ground faults. This paper provides recommendations on redundant connection designs, robust mounting methods, and changes to the safety standards to yield safer PV modules.

  9. Lightweight PV Inverters: Dual Bi-Directional IGBTs Modules Enables Breakthrough PV Inverter Using Current Modulation Topology

    SciTech Connect (OSTI)

    2012-01-30

    Solar ADEPT Project: PV inverters convert DC power generated by modules into usable AC power. IPC’s initial 30kW 94lb. PV inverter reduces the weight of comparable 30kW PV inverters by 90%—reducing the cost of materials, manufacturing, shipping, and installation. With ARPA-E support, new bi-directional silicon power switches will be developed, commercialized, and utilized in IPC’s next-generation PV inverter. With these components, IPC will produce 100kW inverters that weight less than 100lb., reducing the weight of conventional 3,000lb. 100kW inverters by more than 95%. The new power switches will cut IPC’s $/W manufacturing cost in half, as well as further reduce indirect shipping and installation costs.

  10. Implications of Wide-Area Geographic Diversity for Short- Term Variability of Solar Power

    E-Print Network [OSTI]

    Mills, Andrew

    2010-01-01

    the limits of solar photovoltaics (PV) in traditionalof Concentrating Solar Power and Utility-Scale Photovoltaics

  11. Mass Market Demand Response and Variable Generation Integration Issues: A Scoping Study

    E-Print Network [OSTI]

    Cappers, Peter

    2012-01-01

    the limits of solar photovoltaics (PV) in traditionalof Concentrating Solar Power and Utility-Scale Photovoltaics

  12. Flat Plate PV Module Eligibility Listing Procedure Updated 6/2/14 Senate Bill 1 (SB1) defines the solar incentive programs for California, and flat plate PV

    E-Print Network [OSTI]

    Flat Plate PV Module Eligibility Listing Procedure Updated 6/2/14 Senate Bill 1 (SB1) defines the solar incentive programs for California, and flat plate PV modules 1 must be listed on the SB1 for adding PV modules to the SB1 list is as follows: 1 . Data submitted to the Energy Commission

  13. Rice Snl6, a cinnamoyl-CoA reductase-like gene family member, is required for NH1-mediated immunity to Xanthomonas oryzae pv. oryzae.

    E-Print Network [OSTI]

    Bart, Rebecca S; Chern, Mawsheng; Vega-Sánchez, Miguel E; Canlas, Patrick; Ronald, Pamela C

    2010-01-01

    Immunity to Xanthomonas oryzae pv. oryzae Rebecca S. Bartpathogen, Xanthomonas oryzae pv. oryzae (Xoo), constitutiveagainst Xanthomonas oryzae pv. oryzae in Rice. Molecular

  14. The Xanthomonas oryzae pv. oryzae PhoPQ two-component system is required for AvrXA21 activity, hrpG expression, and virulence.

    E-Print Network [OSTI]

    2008-01-01

    against Xanthomonas oryzae pv. oryzae in Korea. Kor. J.the Xanthomonas campestris pv. campestris lipopolysaccharidein Xanthomonas oryzae pv. oryzae re- quired for AvrXa21

  15. PV Cell and Module Calibration Activities at NREL

    SciTech Connect (OSTI)

    Emery, K.; Anderberg, A.; Kiehl, J.; Mack, C.; Moriarty, T.; Ottoson, L.; Rummel, S.

    2005-11-01

    The performance of PV cells and modules with respect to standard reference conditions is a key indicator of progress of a given technology. This task provides the U.S. terrestrial PV community with the most accurate measurements that are technically possible in a timely fashion. The international module certification and accreditation program PVGap requires certification laboratories to maintain their calibration traceability path to groups like this one. The politics of a "world record" efficiency requires that an independent laboratory perform these measurements for credibility. Most manufacturers base their module peak watt rating upon standards and reference cells calibrated under this task. This task has been involved in reconciling disputes between manufacturers and their cell suppliers in terms of expected versus actual performance. This task has also served as a resource to the PV community for consultation on solar simulation, current versus voltage measurement instrumentation, measurement procedures and measurement artifacts.

  16. Recent developments in high-efficiency PV cells

    SciTech Connect (OSTI)

    Deb, S.

    2000-05-22

    Enormous progress has been made in recent years on a number of photovoltaic (PV) materials and devices in terms of conversion efficiencies. Ultrahigh-efficiency (>30{percent}) PV cells have been fabricated from gallium arsenide (GaAs) and its ternary alloys such as gallium indium phosphide (GaInP{sub 2}). The high-efficiency GaAs-based solar cells are being produced on a commercial scale, particularly for space applications. Efficiencies in the range of 18{percent} to 24{percent} have been achieved in traditional silicon-based devices fabricated from both multicrystalline and single-crystal materials. Major advances in efficiency have also been made on various thin-film solar cells based on amorphous silicon (aSi:H), copper gallium indium diselenide (CIGS), and cadmium telluride materials. This paper gives a brief overview of the recent progress in PV cell efficiencies based on these materials and devices.

  17. The Impact of Rate Design and Net Metering on the Bill Savings from Distributed PV for Residential Customers in California

    E-Print Network [OSTI]

    Darghouth, Naim R.

    2012-01-01

    would be the least-cost option, across PV-to-load ratios,the overall cost-effectiveness of distributed PV for anthe value or cost-effectiveness of distributed PV from the

  18. Encouraging PV Adoption in New Market-Rate Residential Construction: A Critical Review of Program Experiences to Date

    E-Print Network [OSTI]

    Barbose, Galen; Wiser, Ryan; Bolinger, Mark

    2006-01-01

    retrofits. The higher cost of PV on individual or smallcan easily roll the cost of the PV system into theiral. analyzed project cost data for PV systems funded through

  19. The Impact of Rate Design and Net Metering on the Bill Savings from Distributed PV for Residential Customers in California

    E-Print Network [OSTI]

    Darghouth, Naim R.

    2012-01-01

    greater support for PV adoption among high usage customers.customer adoption of distributed photovoltaics (PV), but hasadoption. In the long-run, however, large differences in the compensation provided for distributed PV

  20. Marker-exchange mutagenesis and complementation strategies for the Gram-negative bacteria Xanthomonas oryzae pv. oryzae.

    E-Print Network [OSTI]

    Lee, Sang-Won; Ronald, P C

    2006-01-01

    of a Xanthomonas oryzae pv. oryzae flagellar operon region2002) The Xanthomonas oryzae pv. lozengeoryzae raxP and raxQsystem in xanthomonas oryzae pv. oryzae required for AvrXa21

  1. Designing PV Incentive Programs to Promote Performance: A Review of Current Practice in the U.S.

    E-Print Network [OSTI]

    Barbose, Galen; Wiser, Ryan; Bolinger, Mark

    2008-01-01

    with Large-scale Implementation of Domestic PV Systems andwith Large PV Systems on Buildings in Japan. Progress inPerformance of Grid-connected PV Systems on Buildings in

  2. Metabolomic and transcriptomic analysis of the rice response to the bacterial blight pathogen Xanthomonas oryzae pv. oryzae.

    E-Print Network [OSTI]

    2010-01-01

    system in Xanthomonas oryzae pv. oryzae required for AvrXa212002). The Xanthomonas oryzae pv. lozengeoryzae raxP andPf1 against Xanthomo- nas oryzae pv. oryzae in rice leaves.

  3. Encouraging PV Adoption in New Market-Rate Residential Construction: A Critical Review of Program Experiences to Date

    E-Print Network [OSTI]

    Barbose, Galen; Wiser, Ryan; Bolinger, Mark

    2006-01-01

    ENCOURAGING PV ADOPTION IN NEW MARKET-RATE RESIDENTIALdeployment of photovoltaics (PV) in new, market-rate homes,the new home market for PV. feature in new developments

  4. Metabolomic and transcriptomic analysis of the rice response to the bacterial blight pathogen Xanthomonas oryzae pv. oryzae

    E-Print Network [OSTI]

    2010-01-01

    system in Xanthomonas oryzae pv. oryzae required for AvrXa212002). The Xanthomonas oryzae pv. lozengeoryzae raxP andPf1 against Xanthomo- nas oryzae pv. oryzae in rice leaves.

  5. The Impact of Rate Design and Net Metering on the Bill Savings from Distributed PV for Residential Customers in California

    E-Print Network [OSTI]

    Darghouth, Naim R.

    2012-01-01

    Rate Structures on Real PV Systems. Preprint, Nationaland the Economics of Solar PV: Could Mandatory Time- of-UsePricing Beneficial to Solar PV in New York City? Prepared

  6. The Impact of Rate Design and Net Metering on the Bill Savings from Distributed PV for Residential Customers in California

    E-Print Network [OSTI]

    Darghouth, Naim

    2010-01-01

    Rate Structures on Real PV Systems. NREL/CP-670-42923.Pricing Beneficial to Solar PV in New York City? PreparedSubstantial Benefit of Solar PV. ” The Electricity Journal,

  7. Time series power flow analysis for distribution connected PV generation.

    SciTech Connect (OSTI)

    Broderick, Robert Joseph; Quiroz, Jimmy Edward; Ellis, Abraham; Reno, Matthew J.; Smith, Jeff; Dugan, Roger

    2013-01-01

    Distributed photovoltaic (PV) projects must go through an interconnection study process before connecting to the distribution grid. These studies are intended to identify the likely impacts and mitigation alternatives. In the majority of the cases, system impacts can be ruled out or mitigation can be identified without an involved study, through a screening process or a simple supplemental review study. For some proposed projects, expensive and time-consuming interconnection studies are required. The challenges to performing the studies are twofold. First, every study scenario is potentially unique, as the studies are often highly specific to the amount of PV generation capacity that varies greatly from feeder to feeder and is often unevenly distributed along the same feeder. This can cause location-specific impacts and mitigations. The second challenge is the inherent variability in PV power output which can interact with feeder operation in complex ways, by affecting the operation of voltage regulation and protection devices. The typical simulation tools and methods in use today for distribution system planning are often not adequate to accurately assess these potential impacts. This report demonstrates how quasi-static time series (QSTS) simulation and high time-resolution data can be used to assess the potential impacts in a more comprehensive manner. The QSTS simulations are applied to a set of sample feeders with high PV deployment to illustrate the usefulness of the approach. The report describes methods that can help determine how PV affects distribution system operations. The simulation results are focused on enhancing the understanding of the underlying technical issues. The examples also highlight the steps needed to perform QSTS simulation and describe the data needed to drive the simulations. The goal of this report is to make the methodology of time series power flow analysis readily accessible to utilities and others responsible for evaluating potential PV impacts.

  8. Testing of Packaging Materials for Improved PV Module Reliability

    SciTech Connect (OSTI)

    Jorgensen, G. J.; Terwilliger, K. M.; Kempe, M. D.; McMahon, T. J.

    2005-02-01

    A number of candidate alternative encapsulant and soft backsheet materials have been evaluated in terms of their suitability for photovoltaic (PV) module packaging applications. Relevant properties, including interfacial adhesion and moisture transport, have been measured as a function of damp-heat (85 C/85% relative humidity) exposure. Based on these tests, promising new encapsulants with improved properties have been identified. Backsheets prepared by industry and at NREL have been found to provide varying levels of moisture ingress protection. To achieve significantly improved products, further development of these candidates is ongoing. The relative effectiveness of various packaging strategies to protect PV devices has also been investigated.

  9. Building-integrated PV -- Analysis and US market potential

    SciTech Connect (OSTI)

    Frantzis, L.; Hill, S.; Teagan, P.; Friedman, D. [Arthur D. Little, Inc., Cambridge, MA (United States)

    1994-12-31

    Arthur D Little, Inc., in conjunction with Solar Design Associates, conducted a study for the US Department of Energy (DOE), Office of Building Technologies (OBT) to determine the market potential for building-integrated photovoltaics (BIPV). This study defines BIPV as two types of applications: (1) where the PV modules are an integral part of the building, often serving as the exterior weathering skin, and (2) the PV modules are mounted on the existing building exterior. Both of these systems are fully integrated with the energy usage of the building and have potential for significant market penetration in the US.

  10. Outdoor PV Module Degradation of Current-Voltage Parameters: Preprint

    SciTech Connect (OSTI)

    Smith, R. M.; Jordan, D. C.; Kurtz, S. R.

    2012-04-01

    Photovoltaic (PV) module degradation rate analysis quantifies the loss of PV power output over time and is useful for estimating the impact of degradation on the cost of energy. An understanding of the degradation of all current-voltage (I-V) parameters helps to determine the cause of the degradation and also gives useful information for the design of the system. This study reports on data collected from 12 distinct mono- and poly-crystalline modules deployed at the National Renewable Energy Laboratory (NREL) in Golden, Colorado. Most modules investigated showed < 0.5%/year decrease in maximum power due to short-circuit current decline.

  11. Toward integrated PV panels and power electronics using printing technologies

    SciTech Connect (OSTI)

    Ababei, Cristinel; Yuvarajan, Subbaraya; Schulz, Douglas L.

    2010-07-15

    In this paper, we review the latest developments in the area of printing technologies with an emphasis on the fabrication of control-embedded photovoltaics (PV) with on-board active and passive devices. We also review the use of power converters and maximum power point tracking (MPPT) circuits with PV panels. Our focus is on the investigation of the simplest implementations of such circuits in view of their integration with solar cells using printing technologies. We see this concept as potentially enabling toward further cost reduction. Besides a discussion as to feasibility, we shall also present some projections and guidelines toward possible integration. (author)

  12. Selecting Solar: Insights into Residential Photovoltaic (PV) Quote Variation

    SciTech Connect (OSTI)

    Davidson, Carolyn; Margolis, Robert

    2015-10-01

    Before investing in a system, a prospective PV customer must not only have initial concept 'buy in,' but also be able to evaluate the tradeoffs associated with different system parameters. Prospective customers might need to evaluate disparate costs for each system attribute by comparing multiple bids. The difficulty of making such an evaluation with limited information can create a cognitive barrier to proceeding with the investment. This analysis leverages recently available data from EnergySage, an online solar marketplace, to offer the first data-driven characterization of quote variation faced by prospective PV customers, lending early insight into the decisions customers face once they have initial buy-in.

  13. Modular Power Converters for PV Applications

    SciTech Connect (OSTI)

    Ozpineci, Burak; Tolbert, Leon M

    2012-05-01

    This report describes technical opportunities to serve as parts of a technological roadmap for Shoals Technologies Group in power electronics for PV applications. There are many different power converter circuits that can be used for solar inverter applications. The present applications do not take advantage of the potential for using common modules. We envision that the development of a power electronics module could enable higher reliability by being durable and flexible. Modules would have fault current limiting features and detection circuits such that they can limit the current through the module from external faults and can identify and isolate internal faults such that the remaining modules can continue to operate with only minimal disturbance to the utility or customer. Development of a reliable, efficient, low-cost, power electronics module will be a key enabling technology for harnessing more power from solar panels and enable plug and play operation. Power electronics for computer power supplies, communication equipment, and transportation have all targeted reliability and modularity as key requirements and have begun concerted efforts to replace monolithic components with collections of common smart modules. This is happening on several levels including (1) device level with intelligent control, (2) functional module level, and (3) system module. This same effort is needed in power electronics for solar applications. Development of modular units will result in standard power electronic converters that will have a lower installed and operating cost for the overall system. These units will lead to increased adaptability and flexibility of solar inverters. Incorporating autonomous fault current limiting and reconfiguration capabilities into the modules and having redundant modules will lead to a durable converter that can withstand the rigors of solar power generation for more than 30 years. Our vision for the technology roadmap is that there is no need for detailed design of new power converters for each new application or installation. One set of modules and controllers can be pre-developed and the only design question would be how many modules need to be in series or parallel for the specific power requirement. Then, a designer can put the modules together and add the intelligent reconfigurable controller. The controller determines how many modules are connected, but it might also ask for user input for the specific application during setup. The modules include protection against faults and can reset it, if necessary. In case of a power device failure, the controller reconfigures itself to continue limited operation until repair which might be as simple as taking the faulty module out and inserting a new module. The result is cost savings in design, maintenance, repair, and a grid that is more reliable and available. This concept would be a perfect fit for the recently announced funding opportunity announcement (DE-FOA-0000653) on Plug and Play Photovoltaics.

  14. Interline Photovoltaic (I-PV) power system - A novel concept of power flow control and management

    E-Print Network [OSTI]

    Khadkikar, Vinod

    This paper presents a new system configuration for a large-scale Photovoltaic (PV) power system with multi-line transmission/distribution networks. A PV power plant is reconfigured in a way that two adjacent power system ...

  15. Analyzing and simulating the variability of solar irradiance and solar PV powerplants

    E-Print Network [OSTI]

    Lave, Matthew S.

    2012-01-01

    the limits of solar photovoltaics (PV) in traditionalpenetrations of solar photovoltaics (PV) into an electricSolar Radiation Climatology in the Design of Photovoltaic Systems, Practical Handbook of Photovoltaics:

  16. Breakout Session: Getting in the Loop: PV Hardware Recycling and Sustainability

    Broader source: Energy.gov [DOE]

    As PV system installations continue to ramp up across the United States, the process for handling used and expired PV modules in the next  20-30 years would benefit from serious planning and...

  17. Dynamic Model Validation of PV Inverters Under Short-Circuit Conditions: Preprint

    SciTech Connect (OSTI)

    Muljadi, E.; Singh, M.; Bravo, R.; Gevorgian, V.

    2013-03-01

    Photovoltaic (PV) modules have dramatically decreased in price in the past few years, spurring the expansion of photovoltaic deployment. Residential and commercial rooftop installations are connected to the distribution network; large-scale installation PV power plants (PVPs) have benefited from tax incentives and the low cost of PV modules. As the level penetration of PV generation increases, the impact on power system reliability will also be greater. Utility power system planners must consider the role of PV generation in power systems more realistically by representing PV generation in dynamic stability analyses. Dynamic models of PV inverters have been developed in the positive sequence representation. NREL has developed a PV inverter dynamic model in PSCAD/EMTDC. This paper validates the dynamic model with an actual hardware bench test conducted by Southern California Edison's Distributed Energy Resources laboratory. All the fault combinations -- symmetrical and unsymmetrical -- were performed in the laboratory. We compare the simulation results with the bench test results.

  18. Shaking Up the Residential PV Market: Implications of Recent Changes to the ITC

    E-Print Network [OSTI]

    Bolinger, Mark

    2008-01-01

    credit. Case Studies of State Support for Renewable EnergyPV Market Case Studies of State Support for Renewable EnergyPV Market Case Studies of State Support for Renewable Energy

  19. Characterization of the Pseudomonas syringae pv. tomato AvrRpt2 protein: demonstration of secretion and

    E-Print Network [OSTI]

    Characterization of the Pseudomonas syringae pv. tomato AvrRpt2 protein: demonstration of secretion Pseudomonas syringae pv. tomato strain DC3000 (Pst DC3000) expressing avrRpt2 is speci®cally recognized

  20. Comparative Genomics of Multiple Strains of Pseudomonas cannabina pv. alisalensis, a Potential

    E-Print Network [OSTI]

    Dangl, Jeff

    Comparative Genomics of Multiple Strains of Pseudomonas cannabina pv. alisalensis, a Potential cannabina pv. alisalensis, a Potential Model Pathogen of Both Monocots and Dicots. PLoS ONE 8(3): e59366

  1. Approaches To Integrating A HIgh Penertration Of Solar PV and CPV Onto The Electrical Grid

    E-Print Network [OSTI]

    Hill, Steven Craig

    2013-01-01

    significant growth in the solar market beyond the 2,300 MWthe concentrated solar PV market. The proven flat panels leading market success in the installation of solar PV

  2. DOE Request for Information (RFI) DE-FOA-0000153 PV Manufacturing Initiative: Summary Report, February 2010

    SciTech Connect (OSTI)

    Not Available

    2010-02-01

    This document sums up results of the PV Manufacturing Request for Information (RFI), DE-FOA-0000153, which supports the PV Manufacturing Initiative, launched by DOE Solar Energy Technologies Program.

  3. Interline photovoltaic (I-PV) power plants for voltage unbalance compensation

    E-Print Network [OSTI]

    Moawwad, Ahmed

    This paper proposes a stationary-frame control method for voltage unbalance compensation using Interline Photovoltaic (I-PV) power system. I-PV power systems are controlled to compensate voltage unbalance autonomously. The ...

  4. Shaking Up the Residential PV Market: Implications of Recent Changes to the ITC

    E-Print Network [OSTI]

    Bolinger, Mark

    2008-01-01

    pay for a PV system’s solar renewable energy certificates (Efficiency and Renewable Energy, Solar Energy Technologiessolar Shaking Up the Residential PV Market Case Studies of State Support for Renewable

  5. Resonance in Optimal Perturbation Evolution. Part II: Effects of a Nonzero Mean PV Gradient

    E-Print Network [OSTI]

    de Vries, Hylke

    Resonance in Optimal Perturbation Evolution. Part II: Effects of a Nonzero Mean PV Gradient H. DE (PV) perturbations and the surface edge wave plays a key role in the surface dynamics (e.g. De Vries

  6. September 16 ESTAP Webinar: Optimizing the Benefits of a PV with...

    Office of Environmental Management (EM)

    6 ESTAP Webinar: Optimizing the Benefits of a PV with Battery Storage System September 16 ESTAP Webinar: Optimizing the Benefits of a PV with Battery Storage System August 30, 2013...

  7. Failure and Degradation Modes of PV Modules in a Hot Dry Climate...

    Office of Environmental Management (EM)

    Failure and Degradation Modes of PV Modules in a Hot Dry Climate: Results After 12 to 26 Years of Field Exposure Failure and Degradation Modes of PV Modules in a Hot Dry Climate:...

  8. Analyzing the Stability ofAnalyzing the Stability of --Carotene and PVCarotene and PV--1919

    E-Print Network [OSTI]

    Petta, Jason

    Analyzing the Stability ofAnalyzing the Stability of --Carotene and PVCarotene and PV--1919 nanoparticles #12;Goals of Second ProjectGoals of Second Project Study of PVStudy of PV--1919 --Determine

  9. Climatically Diverse Data Set for Flat-Plate PV Module Model Validations (Presentation)

    SciTech Connect (OSTI)

    Marion, B.

    2013-05-01

    Photovoltaic (PV) module I-V curves were measured at Florida, Colorado, and Oregon locations to provide data for the validation and development of models used for predicting the performance of PV modules.

  10. Berkeley Program Offers New Option for Financing Residential PV Systems

    SciTech Connect (OSTI)

    Bolinger, Mark A

    2008-07-06

    Readily accessible credit has often been cited as a necessary ingredient to open up the market for residential photovoltaic (PV) systems. Though financing does not reduce the high up-front cost of PV, by spreading that cost over some portion of the system's life, financing can certainly make PV systems more affordable. As a result, a number of states have, in the past, set up special residential loan programs targeting the installation of renewable energy systems and/or energy-efficiency improvements and often featuring low interest rates, longer terms and no-hassle application requirements. Historically, these loan programs have had mixed success (particularly for PV), for a variety of reasons, including a historical lack of homeowner interest in PV, a lack of program awareness, a reduced appeal in a low-interest-rate environment, and a tendency for early PV adopters to be wealthy and not in need of financing. Some of these barriers have begun to fade. Most notably, homeowner interest in PV has grown in some states, particularly those that offer solar rebates. The passage of the Energy Policy Act of 2005 (EPAct 2005), however, introduced one additional roadblock to the success of low-interest PV loan programs: a residential solar investment tax credit (ITC), subject to the Federal government's 'anti-double-dipping' rules. Specifically, the residential solar ITC--equal to 30% of the system's tax basis, capped at $2000--will be reduced or offset if the system also benefits from what is known as 'subsidized energy financing', which is likely to include most government-sponsored low-interest loan programs. Within this context, it has been interesting to note the recent flurry of announcements from a number of U.S cities concerning a new type of PV financing program. Led by the city of Berkeley, Calif., these cities propose to offer their residents the ability to finance the installation of a PV system using increased property tax assessments, rather than a more-traditional credit vehicle, to recover both system and administrative costs. This approach has a number of features that should appeal to PV owners, including long-term, fixed-cost, attractive financing; loans that are tied to the tax capacity of the property rather than to the owner's credit standing; a repayment obligation that transfers along with the sale of the property; and a potential ability to deduct the repayment obligation from federal taxable income as part of the local property tax deduction. For these reasons, Berkeley's program, which was first announced on October 23, 2007, has received considerable nationwide attention in both the trade and general press. Since the announcement, cities from throughout California and the broader U.S. have expressed keen interest in the possibility of replicating this type of program. In California alone, the cities of Santa Cruz, Santa Monica and Palm Desert are all reportedly considering similar programs, while the city of San Francisco has recently announced its own program, portions of which closely parallel Berkeley's approach. In addition, a bill (AB 811) that would authorize all cities in California, not just charter cities like Berkeley, to create this type of program was approved by the California General Assembly on January 29 and is currently under consideration in the State Senate. A similar bill in Colorado (HB 1350) was signed into law on May 28. Elsewhere, the city of Tucson, Arizona has also considered this financing approach.

  11. Junction Evolution During Fabrication of CdS/CdTe Thin-film PV Solar Cells (Presentation)

    SciTech Connect (OSTI)

    Gessert, T. A.

    2010-09-01

    Discussion of the formation of CdTe thin-film PV junctions and optimization of CdTe thin-film PV solar cells.

  12. The Economic Value of PV and Net Metering to Residential Customers in California

    E-Print Network [OSTI]

    Darghouth, Naim

    2010-01-01

    The Market Value and Cost of Solar Photovoltaic ElectricityTransmission Cost is a Substantial Benefit of Solar PV”, The

  13. Rethinking Standby & Fixed Cost Charges: Regulatory & Rate Design Pathways to Deeper Solar PV Cost Reductions

    Broader source: Energy.gov [DOE]

    While solar PV's impact on utilities has been frequently discussed the past year, little attention has been paid to the potentially impact posed by solar PV-specific rate designs (often informally referred to as solar "fees" or "taxes") upon non-hardware "soft" cost reductions. In fact, applying some rate designs to solar PV customers could potentially have a large impact on the economics of PV systems.

  14. Designing PV Incentive Programs to Promote System Performance: A Review of Current Practice

    E-Print Network [OSTI]

    Barbose, Galen; Wiser, Ryan; Bolinger, Mark

    2006-01-01

    Solar Rebate Program Solar & Small Wind Incentive ProgramSolar Electric and Wind Program (Small PV Program) **

  15. Regolamento_Meccanica_L3-PV-POLIMI.doc UNIVERSIT DEGLI STUDI DI PAVIA

    E-Print Network [OSTI]

    Segatti, Antonio

    Regolamento_Meccanica_L3-PV-POLIMI.doc UNIVERSITÃ? DEGLI STUDI DI PAVIA FACOLTÃ? di Ingegneria Classe

  16. Distributed Solar PV for Electricity System Resiliency: Policy and Regulatory Considerations (Brochure)

    SciTech Connect (OSTI)

    Not Available

    2014-11-01

    Distributed Solar PV systems have the potential of increasing the grid's resiliency to unforeseen events, such as extreme weather events and attacks. This paper presents the role that distributed PV can play in electric grid resiliency, introduces basic system design requirements and options, and discusses the regulatory and policy options for supporting the use of distributed PV for the purpose of increased electricity resiliency.

  17. A methodology for optimal sizing of autonomous hybrid PV/wind system

    E-Print Network [OSTI]

    Boyer, Edmond

    A methodology for optimal sizing of autonomous hybrid PV/wind system S. Diaf 1* , D. Diaf2 , M paper presents a methodology to perform the optimal sizing of an autonomous hybrid PV/wind system system reliability requirements, with the lowest value of levelised cost of energy. Modelling a hybrid PV/wind

  18. 78 IAEI NEWS September.October 2006 www.iaei.org penetrating pv questions from inspectors

    E-Print Network [OSTI]

    Johnson, Eric E.

    78 IAEI NEWS September.October 2006 www.iaei.org penetrating pv questions from inspectors B ased several calls and e-mails a week and sometimes several calls a day from inspectors looking at PV plans or inspecting PV systems. The questions that they pose are always challenging because most of the inspectors

  19. agronomie: agriculture and environment Dtection d'Erwinia chrysanthemi pv dianthicola

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    agronomie: agriculture and environment Détection d'Erwinia chrysanthemi pv dianthicola par le test — L'indexage des boutures d'œillet vis-à-vis d'Erwinia chrysanthemi pv dianthicola (Ech son exploitation à grande échelle sont discutés sur le plan technique. Erwinia chrysanthemi pv

  20. QUANTIFYING RESIDENTIAL PV ECONOMICS IN THE US PAYBACK vs. CASH FLOW

    E-Print Network [OSTI]

    Perez, Richard R.

    QUANTIFYING RESIDENTIAL PV ECONOMICS IN THE US --- PAYBACK vs. CASH FLOW DETERMINATION OF FAIR by prospective PV owners. Contrasting this measure with another financial gauge -- life-cycle cash flow -- the paper discusses why payback may not be the most appropriate measure for residential PV applications

  1. RETI Phase 1B Final Report Update NET SHORT RECALCULATION AND NEW PV ASSUMPTIONS

    E-Print Network [OSTI]

    RETI Phase 1B Final Report Update NET SHORT RECALCULATION AND NEW PV ASSUMPTIONS With Revisions distributed photovoltaic (PV) installations in the Report is unclear and perhaps misleading. At the direction-generation is required. The CEC forecast assumed that 1,082 GWh will be self-generated by consumers from new PV

  2. 80 IAEI NEWS March.April 2008 www.iaei.org COMMON PV CODE VIOLATIONS

    E-Print Network [OSTI]

    Johnson, Eric E.

    80 IAEI NEWS March.April 2008 www.iaei.org COMMON PV CODE VIOLATIONS by John Wiles A s we move into 2008, the PV industry continues to grow by leaps and bounds. New module and inverter manufacturers are entering the industry, and the number of individuals and organizations install- ing PV systems is growing

  3. EVALUATION OF PV GENERATION CAPICITY CREDIT FORECAST ON DAY-AHEAD UTILITY MARKETS

    E-Print Network [OSTI]

    Perez, Richard R.

    EVALUATION OF PV GENERATION CAPICITY CREDIT FORECAST ON DAY-AHEAD UTILITY MARKETS Richard Perez predict the effective capacity of grid-connected PV power plants. The predicted and actual utility peak load reduction performance of PV power plants are compared for two case studies: ConEdison in New York

  4. PUBLISHED VERSION Workshop on performance variations in H ion sources 2012: PV H12

    E-Print Network [OSTI]

    PUBLISHED VERSION Workshop on performance variations in H ion sources 2012: PV H12 M. P. Stockli, D://dx.doi.org/10.1063/1.4792832 #12;Workshop on performance variations in H ion sources 2012: PV H12 M. P. Stockli Sources 2012: PV H- 120F * M. P. Stocklia , D. Fairclothb , W. Krausc , A. Andod , D. S. Bollingere , S

  5. SOLAR ENERGY (conditionally accepted 1/2010) QUANTIFYING PV POWER OUTPUT VARIABILITY

    E-Print Network [OSTI]

    Perez, Richard R.

    SOLAR ENERGY (conditionally accepted 1/2010) QUANTIFYING PV POWER OUTPUT VARIABILITY Thomas E power output variability from a fleet of photovoltaic (PV) systems, ranging from a single central station to a set of distributed PV systems. The approach demonstrates that the relative power output

  6. BATTERY-POWERED, ELECTRIC-DRIVE VEHICLES PROVIDING BUFFER STORAGE FOR PV CAPACITY VALUE

    E-Print Network [OSTI]

    Perez, Richard R.

    BATTERY-POWERED, ELECTRIC-DRIVE VEHICLES PROVIDING BUFFER STORAGE FOR PV CAPACITY VALUE Steven applications, batteries can serve to provide firm peak-shaving for distributed PV installations. To date, however, the use of batteries from parked electric- drive vehicles (EDV) to provide buffer storage for PV

  7. Evidence for Interhemispheric Processing of Inputs From the Hands in Human S2 and PV

    E-Print Network [OSTI]

    Krubitzer, Leah A.

    Evidence for Interhemispheric Processing of Inputs From the Hands in Human S2 and PV ELIZABETH S2 and PV. J Neurophysiol 85: 2236­2244, 2001. In the present investigation, we identified cortical somatosensory (S2) and the parietal ventral (PV) areas, was significantly larger for bilateral stimulation than

  8. TOWARDS A MEANINGFUL STANDARD FOR PV ARRAY INSTALLATION IN AUSTRALIA. T. Spooner O. Arteaga M. Calais

    E-Print Network [OSTI]

    TOWARDS A MEANINGFUL STANDARD FOR PV ARRAY INSTALLATION IN AUSTRALIA. T. Spooner O. Arteaga M@eng.murdoch.edu.au ABSTRACT: Photovoltaic (PV) arrays have been installed for many years in a very wide range of applications of a standard for PV array installation. This paper discusses important safety issues with respect to the design

  9. Environmental impacts of large-scale grid-connected ground-mounted PV installations

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    Environmental impacts of large-scale grid-connected ground-mounted PV installations Antoine Beylota-scale ground-mounted PV installations by considering a life-cycle approach. The methodology is based. Mobile PV installations with dual-axis trackers show the largest impact potential on ecosystem quality

  10. VALIDATION OF PV PERFORMANCE MODELS USING SATELLITE-BASED IRRADIANCE MEASUREMENTS: A CASE STUDY

    E-Print Network [OSTI]

    Perez, Richard R.

    VALIDATION OF PV PERFORMANCE MODELS USING SATELLITE-BASED IRRADIANCE MEASUREMENTS: A CASE STUDY Clean Power Research Kirkland, WA e-mail: aparkins@cleanpower.com ABSTRACT Photovoltaic (PV) system and existing PV systems under a wide variety of environmental conditions. Ground based meteorological

  11. IEEE TRANSACTIONS ON POWER ELECTRONICS 1 A Hybrid Power Control Concept for PV Inverters with Reduced

    E-Print Network [OSTI]

    Kerekes, Tamas

    IEEE TRANSACTIONS ON POWER ELECTRONICS 1 Letters A Hybrid Power Control Concept for PV Inverters- cept for grid-connected Photovoltaic (PV) inverters. The control strategy is based on either a Maximum on the instantaneous available power from the PV panels. The essence of the proposed concept lies in the selection

  12. Aalborg Universitet Stability Analysis for Isolated AC Microgrids Based on PV-Active Generators

    E-Print Network [OSTI]

    Vasquez, Juan Carlos

    Aalborg Universitet Stability Analysis for Isolated AC Microgrids Based on PV-Active Generators for Isolated AC Microgrids Based on PV-Active Generators. In Proceedings of the 2015 IEEE Energy Conversion.aau.dk on: november 29, 2015 #12;Stability Analysis for Isolated AC Microgrids Based on PV-Active Generators

  13. Why Are Residential PV Prices in Germany So Much Lower Than in the United States?

    E-Print Network [OSTI]

    .S. installers, to collect data on residential PV soft costs ­ Comprehensively reviewed public and private consultant data relevant to the cost structure of residential PV in Germany · Focus is the preWhy Are Residential PV Prices in Germany So Much Lower Than in the United States? A Scoping

  14. DOE Request for Information (RFI) DE-FOA-0000153 PV Manufacturing Initiative

    SciTech Connect (OSTI)

    none,

    2010-02-01

    This draft report summarizes the results of the U.S. Department of Energy PV Manufacturing Request for Information (RFI), DE-FOA-0000153, that was released in September 2009. The PV Manufacturing Initiative is intended to help facilitate the development of a strong PV manufacturing industry in the United States.

  15. PERFORMANCE ASSESSMENT OF PV MODULES RELATIONSHIP BETWEEN STC RATING AND FIELD PERFORMANCE

    E-Print Network [OSTI]

    Sites, James R.

    PERFORMANCE ASSESSMENT OF PV MODULES ­ RELATIONSHIP BETWEEN STC RATING AND FIELD PERFORMANCE Marko USA ABSTRACT PV module field performance can be assessed by annual effective efficiency and module performance ratio and present results for six PV modules at two locations and different tilts. Results

  16. Aalborg Universitet On the Impact of Partial Shading on PV Output Power

    E-Print Network [OSTI]

    Sera, Dezso

    Aalborg Universitet On the Impact of Partial Shading on PV Output Power Sera, Dezso; Baghzouz version (APA): Sera, D., & Baghzouz, Y. (2008). On the Impact of Partial Shading on PV Output Power from vbn.aau.dk on: juli 06, 2015 #12;On the Impact of Partial Shading on PV Output Power DEZSO SERA

  17. Genomic Plasticity Enables Phenotypic Variation of Pseudomonas syringae pv. tomato DC3000

    E-Print Network [OSTI]

    Myers, Chris

    Genomic Plasticity Enables Phenotypic Variation of Pseudomonas syringae pv. tomato DC3000 Zhongmeng of a genomic anomaly in the region of 4.7 to 4.9 Mb of the Pseudomonas syringae pv. tomato (Pst) DC3000 genome in P. syringae. Citation: Bao Z, Stodghill PV, Myers CR, Lam H, Wei H-L, et al. (2014) Genomic

  18. EFFECTIVE EFFICIENCY AND PERFORMANCE RATIO AS ENERGY RATING SYSTEM FOR PV MODULES Marko Topic1

    E-Print Network [OSTI]

    Sites, James R.

    EFFECTIVE EFFICIENCY AND PERFORMANCE RATIO AS ENERGY RATING SYSTEM FOR PV MODULES Marko Topic1 USA ABSTRACT: PV module energy rating assessment can be expressed by an annual effective efficiency approaches are presented: (i) a more accurate one with hourly averaged data over a year and a model of PV

  19. Optimal Perturbations in the Eady Model: Resonance versus PV Unshielding H. DE VRIES

    E-Print Network [OSTI]

    de Vries, Hylke

    Optimal Perturbations in the Eady Model: Resonance versus PV Unshielding H. DE VRIES Institute August 2004) ABSTRACT Using a nonmodal decomposition technique based on the potential vorticity (PV, such that the initial surface potential temperature (PT) is zero. These nonmodal structures are used as PV building

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

    E-Print Network [OSTI]

    Stoltz, Brian M.

    Impact of increased penetration of wind and PV solar resources on the bulk power system Vijay;Wind and PV solar grid interface · Modern wind turbine generators are typically rated between 1.5 MW through a power electronic converter 3 #12;Wind and PV solar grid interface 4 Schematic of Type 3 wind

  1. Response to Xanthomonas campestris pv. vesicatoria in Tomato Involves Regulation of Ethylene Receptor

    E-Print Network [OSTI]

    Klee, Harry J.

    Response to Xanthomonas campestris pv. vesicatoria in Tomato Involves Regulation of Ethylene ethylene's role in plant response to virulent and avirulent strains of Xanthomonas campestris pv overexpressing a wild-type NR cDNA were infected with virulent X. campestris pv. vesicatoria. Like the Nr mutant

  2. CONTINUOUS ROLL-TO-ROLL SERPENTINE DEPOSITION FOR HIGH THROUGHPUT a-Si PV MANUFACTURING

    E-Print Network [OSTI]

    Deng, Xunming

    CONTINUOUS ROLL-TO-ROLL SERPENTINE DEPOSITION FOR HIGH THROUGHPUT a-Si PV MANUFACTURING M. Izu, H. When this technique is incorporated into a continuous roll- to-roll PV manufacturing process a number of advantages in a fully automated high throughput PV module production plant [l-18

  3. Genome Sequence of Xanthomonas arboricola pv. Corylina, Isolated from Turkish Filbert in Colorado

    E-Print Network [OSTI]

    Boucher, Christina

    Genome Sequence of Xanthomonas arboricola pv. Corylina, Isolated from Turkish Filbert in Colorado pv. corylina. To our knowledge, this is the first published ge- nome of this pathovar of X, Zerillo MM, Snelling J, Boucher C, Tisserat N. 2013. Genome sequence of Xanthomonas arboricola pv

  4. INTELLIGENT PERFORMANCE CHECK OF PV SYSTEM OPERATION BASED ON SATELLITE DATA

    E-Print Network [OSTI]

    Heinemann, Detlev

    INTELLIGENT PERFORMANCE CHECK OF PV SYSTEM OPERATION BASED ON SATELLITE DATA A. Drews* , J. Betcke of a fully automated service for performance check and error detection for photovoltaic (PV) systems by daily surveillance. Malfunctions of a grid-connected PV system, e.g. drop out of single module strings

  5. Put-Call Parity (Castelli, 1877) C = P + S -PV(X). (19)

    E-Print Network [OSTI]

    Lyuu, Yuh-Dauh

    Put-Call Parity (Castelli, 1877) C = P + S - PV(X). (19) · Consider the portfolio of one short European call, one long European put, one share of stock, and a loan of PV(X). · All options are assumed - S + PV(X). c 2010 Prof. Yuh-Dauh Lyuu, National Taiwan University Page 185 #12;The Proof (continued

  6. FAILURE DETECTION ROUTINE FOR GRID CONNECTED PV SYSTEMS AS PART OF THE PVSAT-2 PROJECT

    E-Print Network [OSTI]

    Heinemann, Detlev

    FAILURE DETECTION ROUTINE FOR GRID CONNECTED PV SYSTEMS AS PART OF THE PVSAT-2 PROJECT S. Stettler1.stettler@enecolo.ch, tel. +41 44 994 9001, fax. +41 44 994 9005 ABSTRACT: Identification of energy losses in PV systems up automatically analysing the performance of PV systems and, in case of a malfunction, determining possible causes

  7. THE DEVELOPMENT AND COMMERCIALIZATION OF SOLAR PV TECHNOLOGY IN THE OIL Jonatan Pinksea,b

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    THE DEVELOPMENT AND COMMERCIALIZATION OF SOLAR PV TECHNOLOGY IN THE OIL INDUSTRY Jonatan Pinksea regarding solar PV technology investments, a renewable energy technology that has seen explosive growth towards the development and commercialization of solar PV technology. To investigate this, a multiple case

  8. Fraunhofer-Center fr Silizium-Photovoltaik CSP INTERPRETATION OF CELL FRACTURE IN PV

    E-Print Network [OSTI]

    © Fraunhofer-Center für Silizium-Photovoltaik CSP INTERPRETATION OF CELL FRACTURE IN PV MODULES stability of PV modules" #12;© Fraunhofer-Center für Silizium-Photovoltaik CSP Agenda Motivation of busbar (processing) Along busbar (operation wind, snow,...) Cracked cells in a PV Module after

  9. PV Interconnection Risk Analysis through Distribution System Impact Signatures and Feeder Zones

    E-Print Network [OSTI]

    PV Interconnection Risk Analysis through Distribution System Impact Signatures and Feeder Zones Grid Integration Sandia National Laboratories Albuquerque, NM, USA Abstract-- High penetrations of PV reliability problems. In order to improve the interconnection study process, the use of feeder zones and PV

  10. Remote performance check and automated failure identification for grid-connected PV systems

    E-Print Network [OSTI]

    Heinemann, Detlev

    Remote performance check and automated failure identification for grid-connected PV systems cloudy skies. This determines the quality of the PV simulation and finally the period of time, satellite data, PVSAT-2 1. Introduction Failure-free operation of grid-connected photovoltaic (PV) systems

  11. pV3 Batch User's Reference Manual for use with the following workstations

    E-Print Network [OSTI]

    Peraire, Jaime

    pV3 Batch User's Reference Manual Rev. 2.05 for use with the following workstations: Compaq ALPHAs. 2 #12;Contents 1 Introduction 4 2 pV3 Batch Server 5 2.1 Batch Server Startup.4 Advanced Programming . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 3 pV3 Post

  12. THERMOMECHANICS OF PV MODULES INCLUDING THE VISCOELASTICITY OF EVA Ulrich Eitner1,

    E-Print Network [OSTI]

    THERMOMECHANICS OF PV MODULES INCLUDING THE VISCOELASTICITY OF EVA Ulrich Eitner1, *, Matthias by a comparison to displacement experiments where the thermomechanical deformation of solar cells in a PV laminate in the cell distance is 170µm. Keywords: PV module, Encapsulation, Simulation, Reliability, Mechanics 1

  13. OUTDOOR PV PERFORMANCE EVALUATION OF THREE DIFFERENT MODELS: SINGLE-DIODE, SAPM AND LOSS FACTOR MODEL

    E-Print Network [OSTI]

    OUTDOOR PV PERFORMANCE EVALUATION OF THREE DIFFERENT MODELS: SINGLE-DIODE, SAPM AND LOSS FACTOR.steveransome.com ABSTRACT: This study examines the accuracy and value of three different PV module performance modeling. The equivalent circuit diode models (e.g., PVsyst, PV*SOL, CEC, etc.) are popular, but include technology

  14. The PV Formula Justified Theorem 1 For a certain cash flow C1, C2, . . . , Cn,

    E-Print Network [OSTI]

    Lyuu, Yuh-Dauh

    Prix pour essai de LA FONDATION P&V Au-delà du déclin 1 Prix pour essai de LA FONDATION P&V Au FONDATION P&V Au-delà du déclin 2 - démontrer comment la société peut réinvestir le champ de l

  15. The figure shows the current energy pay back time for PV

    E-Print Network [OSTI]

    The figure shows the current energy pay back time for PV systems using different cell technologies and installed either in Central Europe or Southern Europe. Argument B1 PV Fact Sheets Technology improvements: Manufacturing a PV system consumes more energy than it ever produces in its life time." The fact is

  16. Measuring PV System Series Resistance Without Full IV Curves Joshua S. Stein1

    E-Print Network [OSTI]

    Measuring PV System Series Resistance Without Full IV Curves Joshua S. Stein1 , Shawn McCaslin2 resistance of the PV module, string, or array that does not require measuring a full IV curve and current, which can be readily obtained using standard PV monitoring equipment; measured short circuit

  17. Design and Evaluation of a Modular Resonant Switched Capacitors Equalizer for PV Panels

    E-Print Network [OSTI]

    Design and Evaluation of a Modular Resonant Switched Capacitors Equalizer for PV Panels Shmuel (Sam of shaded panels in a serially connected PV array. The proposed solution is based on a modular approach module was designed for 185W PV panels and was found to boost the maximum available power by about 50

  18. PV Output Variability Modeling Using Satellite Imagery and Neural Matthew J. Reno1,2

    E-Print Network [OSTI]

    PV Output Variability Modeling Using Satellite Imagery and Neural Networks Matthew J. Reno1, Albuquerque, NM, USA Abstract -- Variability and ramp rates of PV systems are increasingly important to understand and model for grid stability as PV penetration levels rise. Using satellite imagery to identify

  19. A Uniform PV Framework for Balanced Dynamics vertical structure of the troposphere

    E-Print Network [OSTI]

    Muraki, David J.

    A Uniform PV Framework for Balanced Dynamics vertical structure of the troposphere surface & vertical displacement surface QG: balanced dynamics & uniform PV with vertical structure surface pressure & thickness vis-`a-vis 500 hPa vorticity & geopotential http://grads.iges.org 2 #12;PV Structure of the Lower

  20. Genome-Wide Identification of Transcriptional Start Sites in the Plant Pathogen Pseudomonas syringae pv. tomato

    E-Print Network [OSTI]

    Myers, Chris

    syringae pv. tomato str. DC3000 Melanie J. Filiatrault1,2 *, Paul V. Stodghill1,2 , Christopher R. Myers3 identified 59-ends of transcripts for the plant pathogen Pseudomonas syringae pv. tomato str. DC3000. Citation: Filiatrault MJ, Stodghill PV, Myers CR, Bronstein PA, Butcher BG, et al. (2011) Genome

  1. PV INVERTER PERFORMANCE AND RELIABILITY: WHAT IS THE ROLE OF THE IGBT?

    E-Print Network [OSTI]

    PV INVERTER PERFORMANCE AND RELIABILITY: WHAT IS THE ROLE OF THE IGBT? Robert Kaplar 1 , Reinhard the role of component failures in PV performance and reliability. Although there is no consensus these electronic components and to determine the underlying causes of inverter failures. The typical PV inverter

  2. Pseudomonas syringae pv. actinidiae (PSA) Isolates from Recent Bacterial Canker of Kiwifruit Outbreaks Belong to

    E-Print Network [OSTI]

    Guttman, David S.

    Pseudomonas syringae pv. actinidiae (PSA) Isolates from Recent Bacterial Canker of Kiwifruit fruit (Actinidia deliciosa and A. chinensis) caused by Pseudomonas syringae pv. actinidiae (PSA, Taratufolo MC, Cai R, Almeida NF, et al. (2012) Pseudomonas syringae pv. actinidiae (PSA) Isolates from

  3. PV Microinverter Testbed for Interoperability Jimmy E. Quiroz, Sigifredo Gonzalez, and Joshua S. Stein

    E-Print Network [OSTI]

    PV Microinverter Testbed for Interoperability Jimmy E. Quiroz, Sigifredo Gonzalez, and Joshua S in residential photovoltaic (PV) systems is increasing. This is due to the potential performance advantages that module mismatch and shading has on the power production of a PV system. While these attributes can have

  4. APPLICATION OF THE pV3 COPROCESSING VISUALIZATION ENVIRONMENT TO 3D UNSTRUCTURED MESH CALCULATIONS

    E-Print Network [OSTI]

    Peraire, Jaime

    APPLICATION OF THE pV3 CO­PROCESSING VISUALIZATION ENVIRONMENT TO 3­D UNSTRUCTURED MESH Moffett Field, CA 94035 barth@nas.nasa.gov (415) 604­6740 Introduction The pV3 visualization system­domain. The Visualization System pV3[2] is a complete distributed CFD­style visualization package. It is new, but builds

  5. Silicon Oxynitride Thin Film Barriers for PV Packaging (Poster)

    SciTech Connect (OSTI)

    del Cueto, J. A.; Glick, S. H.; Terwilliger, K. M.; Jorgensen, G. J.; Pankow, J. W.; Keyes, B. M.; Gedvilas, L. M.; Pern, F. J.

    2006-10-03

    Dielectric, adhesion-promoting, moisture barriers comprised of silicon oxynitride thin film materials (SiOxNy with various material stoichiometric compositions x,y) were applied to: 1) bare and pre-coated soda-lime silicate glass (coated with transparent conductive oxide SnO2:F and/or aluminum), and polymer substrates (polyethylene terephthalate, PET, or polyethylene napthalate, PEN); plus 2) pre- deposited photovoltaic (PV) cells and mini-modules consisting of amorphous silicon (a-Si) and copper indium gallium diselenide (CIGS) thin-film PV technologies. We used plasma enhanced chemical vapor deposition (PECVD) process with dilute silane, nitrogen, and nitrous oxide/oxygen gas mixtures in a low-power (< or = 10 milliW per cm2) RF discharge at ~ 0.2 Torr pressure, and low substrate temperatures < or = 100(degrees)C, over deposition areas ~ 1000 cm2. Barrier properties of the resulting PV cells and coated-glass packaging structures were studied with subsequent stressing in damp-heat exposure at 85(degrees)C/85% RH. Preliminary results on PV cells and coated glass indicate the palpable benefits of the barriers in mitigating moisture intrusion and degradation of the underlying structures using SiOxNy coatings with thicknesses in the range of 100-200 nm.

  6. Impact of PV forecasts uncertainty in batteries management in microgrids

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    Impact of PV forecasts uncertainty in batteries management in microgrids Andrea Michiorri Arthur-based battery schedule optimisation in microgrids in presence of network constraints. We examine a specific case production forecast algorithm is used in combination with a battery schedule optimisation algorithm. The size

  7. Smart Grid Inverters for High-Penetration PV Applications

    E-Print Network [OSTI]

    Smart Grid Inverters for High- Penetration PV Applications Hawai`i Natural Energy Institute of recognized energy industry leaders working to develop enhanced capability smart inverters and to demonstrate by deploying and evaluating smart inverters on operating utility distribution feeders in two locations

  8. Performance and Analysis of Photovoltaic (PV)Technologies

    E-Print Network [OSTI]

    Performance and Analysis of Photovoltaic (PV)Technologies at Selected Sites This report presents As part of Cooperative Agreement No. DE-EE0003507 Under Task 3.1: Photovoltaic Systems September 2014`i at Manoa #12;Performance and Analysis of Different Photovoltaic Technologies at Selected Sites Prepared

  9. SunShot Presentation PV Module Reliabity Workshop Opening Session

    Office of Energy Efficiency and Renewable Energy (EERE)

    This PowerPoint slide deck was originally presented at the opening session of the 2013 NREL PV Module Reliability Workshop on Feb. 26-27, 2013 in Golden, CO. It provides an overview of the DOE SunShot initiative, discusses systems integration and technology validation activities, and highlighted the goals and key agenda items for the workshop.

  10. Minnesota Power- Solar-Electric (PV) Rebate Program

    Office of Energy Efficiency and Renewable Energy (EERE)

    Minnesota Power offers a rebate of $1,000 per kilowatt (kW) DC for grid-connected solar-electric (PV) systems, with a maximum award of $20,000 per customer or 60% installed costs per customer. This...

  11. IRRADIANCE MAPS APPLIED FOR THE PERFORMANCE ASSESSMENT OF PV SYSTEMS

    E-Print Network [OSTI]

    Heinemann, Detlev

    FEDERAL STATE OF SAXONY 1 Institute of Electrical Engineering,University of Applied Sciences (FH energy yield of a PV system,methods based on irradiance maps published by weather services or others of the irradiance data has been done by checking a set of monthly energy yield data of well-running grid

  12. November 21, 2000 PV Lesson Plan 1 Solar Cells

    E-Print Network [OSTI]

    Oregon, University of

    November 21, 2000 PV Lesson Plan 1 ­ Solar Cells Prepared for the Oregon Million Solar Roofs High School Gary Grace ­ South Eugene High School In Schools #12;1 Solar Cells Lesson Plan Content: In this lesson, students are introduced to the basic physics and chemistry behind the operation of a solar cell

  13. Integrating PV into Performance Contracts: Barriers and Trends

    E-Print Network [OSTI]

    Delaware, University of

    Project (REPP) discuss the theory of bundling PV with energy efficiency in performance contracts "ESCOs are businesses that develop, install, and finances projects designed to improve energy efficiency it is consumed, solar energy has been championed as a response to looming concerns of resource depletion, air

  14. Selecting Solar. Insights into Residential Photovoltaic (PV) Quote Variation

    SciTech Connect (OSTI)

    Davidson, Carolyn; Margolis, Robert

    2015-10-01

    This analysis leverages available data from EnergySage, an online solar marketplace, to offer the first data-driven characterization of quote variation faced by prospective PV customers, lending early insight into the decisions customers face once they have initial buy-in.

  15. November 21, 2000 PV Lesson Plan 2 Solar Electric Arrays

    E-Print Network [OSTI]

    Oregon, University of

    . (Solar irradiance is electromagnetic energy from the sun. Electromagnetic energy from other sources such as lamps can also be used by solar cells to generate electricity if the energy of the photons is highNovember 21, 2000 PV Lesson Plan 2 ­ Solar Electric Arrays Prepared for the Oregon Million Solar

  16. EPJ Photovoltaics 2, 20301 (2011) www.epj-pv.org

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    2011-01-01

    EPJ Photovoltaics 2, 20301 (2011) www.epj-pv.org DOI: 10.1051/epjpv/2011001 c Owned by the authors, published by EDP Sciences, 2011 EPJ PhotovoltaicsEPJ Photovoltaics Geometrical optimization and electrical online: 1 April 2011 Abstract This article investigates the optimal efficiency of a photovoltaic system

  17. Building an urban image

    E-Print Network [OSTI]

    Russin, Andrew J

    1992-01-01

    This design project explores the principles of "urban legibility" and "shared space". The readability, or imageability (in Kevin Lynch's term) of a city results from the recognition of larger urban patterns, organizations, ...

  18. Solar PV Manufacturing Cost Model Group: Installed Solar PV System Prices (Presentation)

    SciTech Connect (OSTI)

    Goodrich, A. C.; Woodhouse, M.; James, T.

    2011-02-01

    EERE's Solar Energy Technologies Program is charged with leading the Secretary's SunShot Initiative to reduce the cost of electricity from solar by 75% to be cost competitive with conventional energy sources without subsidy by the end of the decade. As part of this Initiative, the program has funded the National Renewable Energy Laboratory (NREL) to develop module manufacturing and solar PV system installation cost models to ensure that the program's cost reduction targets are carefully aligned with current and near term industry costs. The NREL cost analysis team has leveraged the laboratories' extensive experience in the areas of project finance and deployment, as well as industry partnerships, to develop cost models that mirror the project cost analysis tools used by project managers at leading U.S. installers. The cost models are constructed through a "bottoms-up" assessment of each major cost element, beginning with the system's bill of materials, labor requirements (type and hours) by component, site-specific charges, and soft costs. In addition to the relevant engineering, procurement, and construction costs, the models also consider all relevant costs to an installer, including labor burdens and overhead rates, supply chain costs, and overhead and materials inventory costs, and assume market-specific profits.

  19. Experimental comparison of PV-smoothing controllers using distributed generators

    SciTech Connect (OSTI)

    Johnson, Jay Dean; Ellis, Abraham; Denda, Atsushi; Morino, Kimio; Hawkins, John N.; Arellano, Brian; Shinji, Takao; Ogata, Takao; Tadokoro, Masayuki

    2014-02-01

    The power output variability of photovoltaic systems can affect local electrical grids in locations with high renewable energy penetrations or weak distribution or transmission systems. In those rare cases, quick controllable generators (e.g., energy storage systems) or loads can counteract the destabilizing effects by compensating for the power fluctuations. Previously, control algorithms for coordinated and uncoordinated operation of a small natural gas engine-generator (genset) and a battery for smoothing PV plant output were optimized using MATLAB/Simulink simulations. The simulations demonstrated that a traditional generation resource such as a natural gas genset in combination with a battery would smooth the photovoltaic output while using a smaller battery state of charge (SOC) range and extending the life of the battery. This paper reports on the experimental implementation of the coordinated and uncoordinated controllers to verify the simulations and determine the differences in the controllers. The experiments were performed with the PNM PV and energy storage Prosperity site and a gas engine-generator located at the Aperture Center at Mesa Del Sol in Albuquerque, New Mexico. Two field demonstrations were performed to compare the different PV smoothing control algorithms: (1) implementing the coordinated and uncoordinated controls while switching off a subsection of the PV array at precise times on successive clear days, and (2) comparing the results of the battery and genset outputs for the coordinated control on a high variability day with simulations of the coordinated and uncoordinated controls. It was found that for certain PV power profiles the SOC range of the battery may be larger with the coordinated control, but the total amp-hours through the battery-which approximates battery wear-will always be smaller with the coordinated control.

  20. Sensitivity of Rooftop PV Projections in the SunShot Vision Study to Market Assumptions

    SciTech Connect (OSTI)

    Drury, E.; Denholm, P.; Margolis, R.

    2013-01-01

    The SunShot Vision Study explored the potential growth of solar markets if solar prices decreased by about 75% from 2010 to 2020. The SolarDS model was used to simulate rooftop PV demand for this study, based on several PV market assumptions--future electricity rates, customer access to financing, and others--in addition to the SunShot PV price projections. This paper finds that modeled PV demand is highly sensitive to several non-price market assumptions, particularly PV financing parameters.

  1. Solar Photovoltaic Economic Development: Building and Growing a Local PV Industry, August 2011 (Book)

    SciTech Connect (OSTI)

    Not Available

    2011-08-01

    The U.S. photovoltaic (PV) industry is forecast to grow, and it represents an opportunity for economic development and job creation in communities throughout the United States. This report helps U.S. cities evaluate economic opportunities in the PV industry. It serves as a guide for local economic development offices in evaluating their community?s competitiveness in the solar PV industry, assessing the viability of solar PV development goals, and developing strategies for recruiting and retaining PV companies to their areas.

  2. Literature Review of Uncertainty of Analysis Methods (PV F-Chart Program), Report to the Texas Commission on Environmental Quality 

    E-Print Network [OSTI]

    Haberl, J. S.; Cho, S.

    2004-01-01

    This report reviews the reported uncertainty of the PV F-Chart analysis method by reviewing the published related accuracy of PV F-Chart analysis versus measured data, PV F-Chart predictions versus other methods, and PV F-Chart predictions versus...

  3. The Impact of Rate Design and Net Metering on the Bill Savings from Distributed PV for Residential Customers in California

    E-Print Network [OSTI]

    Darghouth, Naim

    2010-01-01

    which TOU Rate is Least Cost PV-to-Load Ratio PGE (N=118)which TOU Rate is Least Cost PV-to-Load Ratio South facingfor which TOU rate is Least Cost PV-to-Load Ratio PV-to-Load

  4. ON THE PURE VIRTUAL BRAID GROUP PV3 V. G.BARDAKOV, R. MIKHAILOV, V. V. VERSHININ, AND J. WU

    E-Print Network [OSTI]

    Wu, Jie

    ON THE PURE VIRTUAL BRAID GROUP PV3 V. G.BARDAKOV, R. MIKHAILOV, V. V. VERSHININ, AND J. WU Abstract. We investigate various properties of the pure virtual braid group PV3. Out of its presentation, we get a free product decomposition of PV3. As a consequence, we show that PV3 is residually torsion

  5. Within the free troposphere, PV is conserved by frictionless, adiabatic motion. However, friction and diabatic processes in the

    E-Print Network [OSTI]

    Plant, Robert

    Within the free troposphere, PV is conserved by frictionless, adiabatic motion. However, friction and diabatic processes in the boundary layer can create or destroy PV. PV is generated in the warm PV anomaly above the low centre, confined in the vertical but spread in the horizontal. This shape

  6. Quantify Degradation Rates and Mechanisms of PV Modules and Systems Installed in Florida Through Comprehensive Experimental and Theoretical Analysis (Poster)

    SciTech Connect (OSTI)

    Sorloaica-Hickman, N.; Davis, K.; Kurtz, S.; Jordan, D.

    2011-02-01

    The economic viability of photovoltaic (PV) technologies is inextricably tied to both the electrical performance and degradation rate of the PV systems, which are the generators of electrical power in PV systems. Over the past 15 years, performance data have been collected on numerous PV systems installed throughout the state of Florida and will be presented.

  7. A PV Dynamics for Rotating Shallow Water on the Sphere search for a balance dynamics on the full sphere

    E-Print Network [OSTI]

    Muraki, David J.

    A PV Dynamics for Rotating Shallow Water on the Sphere search for a balance dynamics on the full vorticity (PV) geometric obstacle: local Rossby number singular at Equator, 1 #12;rSW on the Full Sphere r2 gH0 !-1/2 1 Balanced Dynamics PV Inversion on a Hemisphere, McIntyre/Norton 1999 landmark for PV

  8. Calmodulin-like proteins from Arabidopsis and tomato are involved in host defense against Pseudomonas syringae pv. tomato

    E-Print Network [OSTI]

    Huang, Ching-Tsan

    Pseudomonas syringae pv. tomato David Chiasson, Sophia K. Ekengren, Gregory B. Martin, Stephanie L Dobney

  9. J. Adv. Model. Earth Syst., Vol. 2, Art. #8, 19 pp. Adiabatic Rearrangement of Hollow PV Towers

    E-Print Network [OSTI]

    Schubert, Wayne H.

    J. Adv. Model. Earth Syst., Vol. 2, Art. #8, 19 pp. Adiabatic Rearrangement of Hollow PV Towers potential vorticity (PV). is structure has been referred to as a hollow PV tower. e sign reversal of the radial gradient of PV satis es the Charney-Stern necessary condition for combined barotropic

  10. PG&E Plans for 500 MW of PV

    Office of Energy Efficiency and Renewable Energy (EERE)

    PG&E has developed a plan to install 500 MW of PV by the year 2015. The plan calls for 250 MW to be acquired through Power Purchase Agreements (PPA) and the other 250 MW to be purchased and owned by the utility. PG&E presented the plan at a public forum on April 27, 2009. A copy of the power point presentation is attached.

  11. Designing Auction-Based PV Incentives | Department of Energy

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on Delicious Rank EERE:FinancingPetroleum Based| Department8, 20153Danielthrough theKDesertDesigning Auction-Based PV

  12. Measurement uncertainty analysis techniques applied to PV performance measurements

    SciTech Connect (OSTI)

    Wells, C.

    1992-10-01

    The purpose of this presentation is to provide a brief introduction to measurement uncertainty analysis, outline how it is done, and illustrate uncertainty analysis with examples drawn from the PV field, with particular emphasis toward its use in PV performance measurements. The uncertainty information we know and state concerning a PV performance measurement or a module test result determines, to a significant extent, the value and quality of that result. What is measurement uncertainty analysis It is an outgrowth of what has commonly been called error analysis. But uncertainty analysis, a more recent development, gives greater insight into measurement processes and tests, experiments, or calibration results. Uncertainty analysis gives us an estimate of the I interval about a measured value or an experiment's final result within which we believe the true value of that quantity will lie. Why should we take the time to perform an uncertainty analysis A rigorous measurement uncertainty analysis: Increases the credibility and value of research results; allows comparisons of results from different labs; helps improve experiment design and identifies where changes are needed to achieve stated objectives (through use of the pre-test analysis); plays a significant role in validating measurements and experimental results, and in demonstrating (through the post-test analysis) that valid data have been acquired; reduces the risk of making erroneous decisions; demonstrates quality assurance and quality control measures have been accomplished; define Valid Data as data having known and documented paths of: Origin, including theory; measurements; traceability to measurement standards; computations; uncertainty analysis of results.

  13. www.iaei.org May.June 2006 IAEI NEWS 85 THE 15-MINUTE PV SYSTEM INSPECTION

    E-Print Network [OSTI]

    Johnson, Eric E.

    www.iaei.org May.June 2006 IAEI NEWS 85 THE 15-MINUTE PV SYSTEM INSPECTION by John Wiles The 15-minuteThe 15-minute PV System InspectionPV System Inspection CaCan You? Should You?n You? Should You? The 15-minuteThe 15-minute PV System InspectionPV System Inspection CaCan You? Should You?n You? Should

  14. Exploring the Economic Value of EPAct 2005's PV Tax Credits

    SciTech Connect (OSTI)

    Bolinger, Mark A; Wiser, Ryan; Ing, Edwin

    2009-08-01

    This CESA - LBNL Case Study examines how much economic value do new and expanded federal tax credits really provide to PV system purchasers, and what implications might they hold for state/utility PV grant programs. The report begins with a discussion of the taxability of PV grants and their interaction with federal credits, as this issue significantly affects the analysis that follows. We then calculate the incremental value of EPAct's new and expanded credits for PV systems of different sizes, and owned by different types of entities. The report concludes with a discussion of potential implications for purchasers of PV systems, as well as for administrators of state/utility PV programs. The market for grid-connected photovoltaics (PV) in the US has grown dramatically in recent years, driven in large part by PV grant or 'buy-down' programs in California, New Jersey, and many other states. The recent announcement of a new 11-year, $3.2 billion PV program in California suggests that state policy will continue to drive even faster growth over the next decade. Federal policy has also played a role, primarily by providing commercial PV systems access to tax benefits, including accelerated depreciation (5-year MACRS schedule) and a business energy investment tax credit (ITC). Since the signing of the Energy Policy Act of 2005 (EPAct) on August 8, the federal government has begun to play a much more significant role in supporting both commercial and residential PV systems. Specifically, EPAct increased the federal ITC for commercial PV systems from 10% to 30% of system costs, and also created a new 30% ITC (capped at $2000) for residential solar systems. Both changes went into effect on January 1, 2006, for an initial period of two years, and in late 2006 were extended for an additional year. Unless extended further, the new residential ITC will expire, and the 30% commercial ITC will revert back to 10%, on January 1, 2009. How much economic value do these new and expanded federal tax credits really provide to PV system purchasers? And what implications might they hold for state/utility PV grant programs? Using a generic (i.e., non-state-specific) cash flow model, this report explores these questions.1 We begin with a discussion of the taxability of PV grants and their interaction with federal credits, as this issue significantly affects the analysis that follows. We then calculate the incremental value of EPAct's new and expanded credits for PV systems of different sizes, and owned by different types of entities. We conclude with a discussion of potential implications for purchasers of PV systems, as well as for administrators of state/utility PV programs.

  15. utility scale | OpenEI Community

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page| Open Energy Information Serbia-EnhancingEtGeorgia:Illinois:WizardYatescloud Home Dc'sSolar andsensorstext Home

  16. Photovoltaics (PV) as an Eligible Measure in Residential PACE Programs: Benefits and Challenges (Fact Sheet)

    SciTech Connect (OSTI)

    Coughlin, J.

    2010-06-01

    Property Assessed Clean Energy (PACE) financing is one of several new financial models broadening access to clean energy by addressing the barrier of initial capital cost. The majority of the PACE programs in the market today include PV as an eligible measure. PV appeals to homeowners as a way to reduce utility bills, self-generate sustainable power, increase energy independence and demonstrate a commitment to the environment. If substantial state incentives for PV exist, PV projects can be economic under PACE, especially when partnered with good net metering policies. At the same time, PV is expensive relative to other eligible measures with a return on investment horizon that might exceed program targets. This fact sheet reviews the benefits and potential challenges of including PV in PACE programs.

  17. Public Transport and Sustainable Urbanism: Global Lesson

    E-Print Network [OSTI]

    Cervero, Robert

    2006-01-01

    Public Transport and Sustainable Urbanism: Global Lessonsviable and sustainable form of urbanism. Notes J. Kenworthy

  18. Alternative Fuels, Vehicle Technologies and Urban Logistics

    E-Print Network [OSTI]

    Witt, Maggie

    2012-01-01

    Technologies and Urban Logistics Policy Note prepared byvehicle technologies, urban logistics, and VMT reduction. It

  19. SAPC Best Practices in PV System Installation: Version 1.0, March...

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

    Authority Sydney Roberts, SouthFace Benjamin Shih, Moody's Chris Sommerfeld, Sunrun Jeff Spies, Quick Mount PV Josh Sturtevant, Distributed Sun Teresa W. Zhang, PhD,...

  20. PV Supply Chain and Cross-Cutting Technologies: Upcoming Funding Opportunity

    SciTech Connect (OSTI)

    Not Available

    2008-10-01

    Summarizes the Solar Program's upcoming funding opportunity, called PV Supply Chain and Cross-Cutting Technologies, which is expected to be open by the end of October 2008.

  1. Sustainable and Holistic Integration of Energy Storage and Solar PV (SHINES) Funding Opportunity

    Office of Energy Efficiency and Renewable Energy (EERE)

    The Sustainable and Holistic Integration of Energy Storage and Solar PV (SHINES) solution as envisioned by SunShot will have the following features:

  2. THE IMPACT OF CITY-LEVEL PERMITTING PROCESSES ON RESIDENTIAL PV INSTALLATION PRICES AND DEVELOPMENT TIMES

    E-Print Network [OSTI]

    Dong, Changgui

    2014-01-01

    Renewable Energy Council (13) Sunrun. 2011. The Impact ofSan Francisco, CA: Sunrun (14) Tong, J. 2012. NationwideTong, 2012); earlier, Sunrun (2011) reported PV installation

  3. Technology Choices for the PV Industry: A Comparative Life Cycle Assessment

    E-Print Network [OSTI]

    Boyd, Sarah; Dornfeld, David A

    2005-01-01

    2000), “Environmental Life Cycle Assessment of Solar HomePV INDUSTRY: A Comparative Life Cycle Assessment Sarah Boydinput-output life cycle assessment (EIOLCA) to capture both

  4. Property Tax Assessments as a Finance Vehicle for Residential PV Installations: Opportunities and Potential Limitations

    E-Print Network [OSTI]

    Bolinger, Mark

    2008-01-01

    for Renewable Energy ability to finance the installation offor Renewable Energy loans to finance their PV system (orany subsidized energy financing used to finance the system.

  5. Pyranometers and Reference Cells: Part 2: What Makes the Most Sense for PV Power Plants?; Preprint

    SciTech Connect (OSTI)

    Meydbray, J.; Riley, E.; Dunn, L.; Emery, K.; Kurtz, S.

    2012-10-01

    As described in Part 1 of this two-part series, thermopile pyranometers and photovoltaic (PV) reference cells can both be used to measure irradiance; however, there are subtle differences between the data that are obtained. This two-part article explores some implications of uncertainty and subtleties of accurately measuring PV efficiency in the field. Part 2 of the series shows how reference cells can be used to more confidently predict PV performance, but how this could best be accomplished if historic irradiance data could be available in PV-technology-specific formats.

  6. Precursor Report of Data Needs and Recommended Practices for PV Plant Availability Operations and Maintenance Reporting.

    SciTech Connect (OSTI)

    Hill, Roger R.; Klise, Geoffrey Taylor; Balfour, John R.

    2015-01-01

    Characterizing the factors that affect reliability of a photovoltaic (PV) power plant is an important aspect of optimal asset management. This document describes the many factors that affect operation and maintenance (O&M) of a PV plant, identifies the data necessary to quantify those factors, and describes how data might be used by O&M service providers and others in the PV industry. This document lays out data needs from perspectives of reliability, availability, and key performance indicators and is intended to be a precursor for standardizing terminology and data reporting, which will improve data sharing, analysis, and ultimately PV plant performance.

  7. Designing PV Incentive Programs to Promote System Performance: A Review of Current Practice

    E-Print Network [OSTI]

    Barbose, Galen; Wiser, Ryan; Bolinger, Mark

    2006-01-01

    communication with New York State Energy Research andSolar Pioneer Program New York Energy $mart PV IncentivePower Authority (LIPA) New York State Energy Research and

  8. Partially Shaded Operation of a Grid-Tied PV System: Preprint

    SciTech Connect (OSTI)

    Deline, C.

    2009-06-01

    This paper presents background and experimental results from a single-string grid-tied PV system, operated under a variety of shading conditions.

  9. An Analysis of Residential PV System Price Differences Between the United States and Germany

    E-Print Network [OSTI]

    Seel, Joachim

    2014-01-01

    A levelized cost of electricity (LCoE) analysis based on thePV system prices could reduce LCoE assumptions: 25-year life

  10. Holdover inoculum of Pseudomonas syringae pv. alisalensis from broccoli raab causes disease in subsequent plantings

    E-Print Network [OSTI]

    Cintas, N A; Koike, S T; Bunch, R A; Bull, C T

    2006-01-01

    alisalensis from Broccoli Raab Causes Disease in Subsequentalisalensis from broccoli raab causes disease in subsequentsyringae pv. maculicola causes bacterial spot on many

  11. Approaches To Integrating A HIgh Penertration Of Solar PV and CPV Onto The Electrical Grid

    E-Print Network [OSTI]

    Hill, Steven Craig

    2013-01-01

    FERC) and the National Electrical Regulatory Corporation (Of Solar PV and CPV Onto The Electrical Grid By Steven Craig24  Electrical, Controls & 

  12. Community Renewable Energy Success Stories Webinar: Developing PV Projects with RFPs and PPAs (text version)

    Broader source: Energy.gov [DOE]

    Below is the text version of the webinar titled "Developing PV Projects with RFPS and PPAS," originally presented on January 15, 2013.

  13. Do PV Systems Increase Residential Selling Prices If So, How Can Practitioners Estimate This Increase?

    E-Print Network [OSTI]

    Hoen, Ben

    2013-01-01

    National Laboratory’s Photovoltaic System Valuation Model –of the Effects of Photovoltaic Energy Systems on Residentialimpacts of photovoltaic (PV) energy systems on home sales

  14. Analyzing and simulating the variability of solar irradiance and solar PV powerplants

    E-Print Network [OSTI]

    Lave, Matthew S.

    2012-01-01

    Distributed PV, American Solar Energy Society, Denver, CO,of distance, Submitted to Solar Energy, (2011). [8] T. Hoff,Variability, Submitted to Solar Energy, (2011). [9] J.

  15. Defining a Technical Basis for Confidence in PV Investments - A Pathway to Service Life Prediction (Presentation)

    SciTech Connect (OSTI)

    Kurtz, S.; Wohlgemuth, J.; Kempe, M.; Bosco, N.; Hacke, P.; Jordan, D.; Miller, D.

    2013-09-01

    Four levels of accelerated test standards for PV modules are described in the context of how the community can most quickly begin using these.

  16. Approaches To Integrating A HIgh Penertration Of Solar PV and CPV Onto The Electrical Grid

    E-Print Network [OSTI]

    Hill, Steven Craig

    2013-01-01

    million acres of ideal solar potential, mostly west of thethe potential issues facing rooftop solar installations.investigate the potential conflicts of floating solar PV on

  17. Structuring institutional analysis for urban ecosystems: A key to sustainable urban forest management

    E-Print Network [OSTI]

    Evans, Tom

    Structuring institutional analysis for urban ecosystems: A key to sustainable urban forest in urban settings with a specific focus on sustainable urban forest management. We conclude that urban management . Urban forest policy. Institutional analysis . Ecosystem services . Public goods . Sustainability

  18. Measurement uncertainty analysis techniques applied to PV performance measurements

    SciTech Connect (OSTI)

    Wells, C.

    1992-10-01

    The purpose of this presentation is to provide a brief introduction to measurement uncertainty analysis, outline how it is done, and illustrate uncertainty analysis with examples drawn from the PV field, with particular emphasis toward its use in PV performance measurements. The uncertainty information we know and state concerning a PV performance measurement or a module test result determines, to a significant extent, the value and quality of that result. What is measurement uncertainty analysis? It is an outgrowth of what has commonly been called error analysis. But uncertainty analysis, a more recent development, gives greater insight into measurement processes and tests, experiments, or calibration results. Uncertainty analysis gives us an estimate of the I interval about a measured value or an experiment`s final result within which we believe the true value of that quantity will lie. Why should we take the time to perform an uncertainty analysis? A rigorous measurement uncertainty analysis: Increases the credibility and value of research results; allows comparisons of results from different labs; helps improve experiment design and identifies where changes are needed to achieve stated objectives (through use of the pre-test analysis); plays a significant role in validating measurements and experimental results, and in demonstrating (through the post-test analysis) that valid data have been acquired; reduces the risk of making erroneous decisions; demonstrates quality assurance and quality control measures have been accomplished; define Valid Data as data having known and documented paths of: Origin, including theory; measurements; traceability to measurement standards; computations; uncertainty analysis of results.

  19. Urban Scaling in Europe

    E-Print Network [OSTI]

    Bettencourt, Luis M A

    2015-01-01

    Over the last decades, in disciplines as diverse as economics, geography, and complex systems, a perspective has arisen proposing that many properties of cities are quantitatively predictable due to agglomeration or scaling effects. Using new harmonized definitions for functional urban areas, we examine to what extent these ideas apply to European cities. We show that while most large urban systems in Western Europe (France, Germany, Italy, Spain, UK) approximately agree with theoretical expectations, the small number of cities in each nation and their natural variability preclude drawing strong conclusions. We demonstrate how this problem can be overcome so that cities from different urban systems can be pooled together to construct larger datasets. This leads to a simple statistical procedure to identify urban scaling relations, which then clearly emerge as a property of European cities. We compare the predictions of urban scaling to Zipf's law for the size distribution of cities and show that while the for...

  20. Urban Retrofit: A Whole-Watershed Approach to Urban Stormwater Management

    E-Print Network [OSTI]

    Lithander, Becky

    2012-01-01

    Creek  Watershed:  Urban  Stormwater  Management  Opportuni?Creek  Watershed:  Urban  Stormwater  Management  Opportuni?Creek  Watershed:  Urban  Stormwater  Management  Opportuni?