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1

NREL Mesa Top PV System | Open Energy Information  

Open Energy Info (EERE)

NREL Mesa Top PV System NREL Mesa Top PV System Jump to: navigation, search Name NREL Mesa Top PV System Facility National Renewable Energy Laboratory Sector Solar Facility Type Photovoltaic Owner SunEdison Solar Developer SunEdison Solar Energy Purchaser National Renewable Energy Laboratory Address 15500 Denver West Parkway Location Golden, CO Coordinates 39.744550202°, -105.174608231° Loading map... {"minzoom":false,"mappingservice":"googlemaps3","type":"ROADMAP","zoom":14,"types":["ROADMAP","SATELLITE","HYBRID","TERRAIN"],"geoservice":"google","maxzoom":false,"width":"600px","height":"350px","centre":false,"title":"","label":"","icon":"","visitedicon":"","lines":[],"polygons":[],"circles":[],"rectangles":[],"copycoords":false,"static":false,"wmsoverlay":"","layers":[],"controls":["pan","zoom","type","scale","streetview"],"zoomstyle":"DEFAULT","typestyle":"DEFAULT","autoinfowindows":false,"kml":[],"gkml":[],"fusiontables":[],"resizable":false,"tilt":0,"kmlrezoom":false,"poi":true,"imageoverlays":[],"markercluster":false,"searchmarkers":"","locations":[{"text":"","title":"","link":null,"lat":39.744550202,"lon":-105.174608231,"alt":0,"address":"","icon":"","group":"","inlineLabel":"","visitedicon":""}]}

2

A study of lead-acid battery efficiency near top-of-charge and the impact on PV system design  

SciTech Connect

Knowledge of the charge efficiency of lead-acid batteries near top-of-charge is important to the design of small photovoltaic systems. In order to know how much energy is required from the photovoltaic array in order to accomplish the task of meeting load, including periodic full battery charge, a detailed knowledge of the battery charging efficiency as a function of state of charge is required, particularly in the high state-of-charge regime, as photovoltaic systems are typically designed to operate in the upper 20 to 30% of battery state-of-charge. This paper presents the results of a process for determining battery charging efficiency near top-of-charge and discusses the impact of these findings on the design of small PV systems.

Stevens, J.W.; Corey, G.P.

1996-07-01T23:59:59.000Z

3

Stabilized PV system  

DOE Patents (OSTI)

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.

Dinwoodie, Thomas L. (Piedmont, CA)

2002-12-17T23:59:59.000Z

4

94 IAEI NEWS November.December 2008 www.iaei.org a top to bottom perspective on a pv system  

E-Print Network (OSTI)

by professional engineers. PV arrays may add up to 4­5 pounds per square foot of dead weight to the roof struc inverters (lower cost, less weight, higher efficiency) (NEC 690.35). Although the electrical connectors

Johnson, Eric E.

5

PV System Performance and Standards  

DOE Green Energy (OSTI)

This paper presents a brief overview of the status and accomplishments during fiscal year (FY) 2005 of the Photovoltaic (PV) System Performance and Standards Subtask, which is part of the PV Systems Engineering Project (a joint NREL-Sandia project).

Osterwald, C. R.

2005-11-01T23:59:59.000Z

6

Variability of PV on Distribution Systems  

Science Conference Proceedings (OSTI)

In 2010, the Electric Power Research Institute (EPRI) along with several utilities began collecting high-resolution monitoring data on distributed solar photovoltaic (PV) systems throughout the United States. Included in these monitoring data are single-module PV systems distributed along selected feeders as well as several larger PV systems (up to 1.4 MW). Utilizing data from these sites, this report focuses specifically on examining the measured variability of solar PV distributed throughout a ...

2012-12-13T23:59:59.000Z

7

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 of Energy Office of Electricity Delivery and Energy Reliability Under Cooperative Agreement No. DE-FC26-06NT Subtask 11.1 Deliverables 2 and 4: Report on Solar Resource and PV Systems Performance at Selected Test

8

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

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Other Agencies You are here Home Low Cost High Concentration PV Systems for Utility Power Generation Low Cost High Concentration PV Systems for Utility Power Generation An...

9

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

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Other Agencies You are here Home Low Cost High Concentration PV Systems for Utility Power Generation Amonix, Inc. Low Cost High Concentration PV Systems for Utility Power...

10

Jebel Ali Hotel PV lighting systems  

SciTech Connect

A large stand-alone PV lighting project was installed in June 1983 at the Jebel Ali Hotel in Dubai, United Arab Emirates. A high mast lighting system provides illumination for a 130 meter diameter traffic roundabout. The high mast system is powered by a 15 kilowatt peak array of Mobil Solar ribbon PV modules. Along the 700 meter access road leading to the hotel entrance, twenty-one PV powered streetlights provide low-level lighting. Each streetlight consists of a 20 watt fluorescent tube powered by two 35 Wp modules. Operation of both systems is completely automatic. Design, installation, and operating experience to date are reviewed.

Ellis, M.

1984-05-01T23:59:59.000Z

11

Updating Interconnection Screens for PV System Integration  

DOE Green Energy (OSTI)

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.

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

2012-02-01T23:59:59.000Z

12

PHOTOVOLTAIC POWER SYSTEMS PROGRAMME Pico Solar PV Systems for Remote  

E-Print Network (OSTI)

A new generation of small PV systems for lighting and communication Report IEA-PVPS T9-12:2012INTERNATIONAL ENERGY AGENCY

unknown authors

2013-01-01T23:59:59.000Z

13

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

14

NREL PV System Performance and Standards Technical Progress  

DOE Green Energy (OSTI)

This paper presents a brief overview of the status and accomplishments during Fiscal Year (FY)2004 of the Photovoltaic (PV) System Performance & Standards Subtask, which is part of PV Systems Engineering Project (a joint NREL-Sandia project).

Osterwald, C. R.

2005-01-01T23:59:59.000Z

15

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 per day. The effect of varying the size of the pv array and the battery bank in such systems on both

16

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

E-Print Network (OSTI)

and federal policymakers. Solar PV investments are sizable,investment in PV and thereby slow solar deployment. Statenew home solar homes, the been sufficient to the PV systems.

Hoen, Ben

2013-01-01T23:59:59.000Z

17

Sundance, Skiing and Solar: Park City to Install New PV System | Department  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Sundance, Skiing and Solar: Park City to Install New PV System Sundance, Skiing and Solar: Park City to Install New PV System Sundance, Skiing and Solar: Park City to Install New PV System October 25, 2010 - 10:49am Addthis Park City, UT has completed several green projects recently. The town is installing a solar energy system on top of the Marsac Building at the end of the month. | Photo courtesy of Park City | Park City, UT has completed several green projects recently. The town is installing a solar energy system on top of the Marsac Building at the end of the month. | Photo courtesy of Park City | Paul Lester Communications Specialist for the Office of Energy Efficiency and Renewable Energy What does this project do? 80-panel solar energy system to be installed at Park City's Marsac Building. Recovery Act-funded system to generate up to 15% of the building's

18

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

E-Print Network (OSTI)

and about 125 rooftop residential PV systems and two large scale PV systems. The total installed PV capacity electronics and grid integration of renew- able resources mainly solar PV and wind. Dr. Ayyanar received

Van Veen, Barry D.

19

Commercialization of PV-powered pumping systems for use in utility PV service programs. Final report  

DOE Green Energy (OSTI)

The project described in this report was a commercialization effort focused on cost-effective remote water pumping systems for use in utility-based photovoltaic (PV) service programs. The project combined a commercialization strategy tailored specifically for electric utilities with the development of a PV-powered pumping system that operates conventional ac pumps rather than relying on the more expensive and less reliable PV pumps on the market. By combining these two attributes, a project goal was established of creating sustained utility purchases of 250 PV-powered water pumping systems per year. The results of each of these tasks are presented in two parts contained in this Final Summary Report. The first part summarizes the results of the Photovoltaic Services Network (PSN) as a new business venture, while the second part summarizes the results of the Golden Photon system installations. Specifically, results and photographs from each of the system installations are presented in this latter part.

NONE

1997-03-01T23:59:59.000Z

20

PV-TONS: A photovoltaic technology ontology system for the design of PV-systems  

Science Conference Proceedings (OSTI)

The impacts of climate change, the increasing demand for energy and the diminishing fossil fuel resources have resulted in the development and use of a large number of renewable energy technologies in building development. These technologies are generating ... Keywords: Climate change, Ontology, PV-system, Renewable energy, Semantic Web

F. H. Abanda; J. H. M. Tah; D. Duce

2013-04-01T23:59:59.000Z

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


21

Instrumentation for Evaluating PV System Performance Losses from Snow: Preprint  

DOE Green Energy (OSTI)

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.

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

2009-04-01T23:59:59.000Z

22

Training on PV Systems: Design, Construction, Operation and Maintenance |  

Open Energy Info (EERE)

Training on PV Systems: Design, Construction, Operation and Maintenance Training on PV Systems: Design, Construction, Operation and Maintenance Jump to: navigation, search Tool Summary LAUNCH TOOL Name: Training on PV Systems: Design, Construction, Operation and Maintenance Agency/Company /Organization: Leonardo Energy Sector: Energy Focus Area: Renewable Energy, Solar Website: www.leonardo-energy.org/node/5948 Training on PV Systems: Design, Construction, Operation and Maintenance Screenshot References: PV Training [1] Overview "A free series of six webinars will be delivered to provide the required knowledge to design a high performance photovoltaic (PV) installation, entering into economic evaluation and project cash-flow. Additionally, very practical aspects such as the construction, start-up, quality management and testing will be reviewed. Plant operation is described in detail, with

23

Testing to Support Improvements to PV Components and Systems  

DOE Green Energy (OSTI)

The National Photovoltaic (PV) Program is sponsored by the US Department of Energy and includes a PV Manufacturing Research and Development (R and D) project conducted with industry. This project includes advancements in PV components to improve reliability, reduce costs, and develop integrated PV systems. Participants submit prototypes, pre-production hardware products, and examples of the resulting final products for a range of tests conducted at several national laboratories, independent testing laboratories, and recognized listing agencies. The purpose of this testing is to use the results to assist industry in determining a product's performance and reliability, and to identify areas for potential improvement. This paper briefly describes the PV Manufacturing R and D project, participants in the area of PV systems, balance of systems, and components, and several examples of the different types of product and performance testing used to support and confirm product performance.

THOMAS,H.; KROPOSKI,B.; WITT,C.; BOWER,WARD I.; BONN,RUSSELL H.; GINN,JERRY W.; GONZALEZ,SIGIFREDO

2000-07-15T23:59:59.000Z

24

Testing to Support Improvements to PV Components and Systems  

SciTech Connect

The National Photovoltaic (PV) Program is sponsored by the US Department of Energy and includes a PV Manufacturing Research and Development (R and D) project conducted with industry. This project includes advancements in PV components to improve reliability, reduce costs, and develop integrated PV systems. Participants submit prototypes, pre-production hardware products, and examples of the resulting final products for a range of tests conducted at several national laboratories, independent testing laboratories, and recognized listing agencies. The purpose of this testing is to use the results to assist industry in determining a product's performance and reliability, and to identify areas for potential improvement. This paper briefly describes the PV Manufacturing R and D project, participants in the area of PV systems, balance of systems, and components, and several examples of the different types of product and performance testing used to support and confirm product performance.

THOMAS,H.; KROPOSKI,B.; WITT,C.; BOWER,WARD I.; BONN,RUSSELL H.; GINN,JERRY W.; GONZALEZ,SIGIFREDO

2000-07-15T23:59:59.000Z

25

Long-Term Performance of the SERF PV Systems  

SciTech Connect

This paper provides the changes in performance ratings of two photovoltaic (PV) systems located on the roof of the Solar Energy Research Facility (SERF) building at the National Renewable Energy Laboratory (NREL) in Golden, Colorado. For the period of May 1994 to April 2002, the performance rating of the two PV systems decreased at the rate of 1% per year. Most of the changes in performance rating are attributed to changes in the performance of the PV arrays. But about a fifth of the observed changes were from the inverter not tracking the peak-power as effectively as the PV arrays aged.

Marion, B.; Adelstein, J.

2003-05-01T23:59:59.000Z

26

Development of a dispatchable PV peak shaving system. Final report on PV:BONUS Phase 2 activities  

DOE Green Energy (OSTI)

In July 1993, the Delmarva Power and Light Company (now Conectiv, Inc.) was awarded a contract for the development of a Dispatchable Photovoltaic Peak Shaving System under the US Department of Energy PV:BONUS Program. The rationale for the dispatchable PV peak shaving system is based on the coincidence between the solar resource and the electrical load in question. Where poor coincidence exists, a PV array by itself does little to offset peak demands. However, with the addition of a relatively small amount of energy storage, the energy from the PV array can be managed and the value of the PV system increases substantially. In Phase 2, Delmarva Power continued the refinement of the system deployed in Phase 1. Four additional dispatchable PV peak shaving systems were installed for extended testing and evaluation at sites in Delaware, Maryland, Wisconsin and North Carolina. A second type of system that can be used to provide back-up power as well as peak shaving was also developed in Phase 2. This PV-UPS system used a packaging approach nearly identical to the PV peak shaving system, although there were significant differences in the design of the power electronics and control systems. Conceptually, the PV-UPS system builds upon the idea of adding value to PV systems by increasing functionality. A prototype of the PV-UPS system was installed in Delaware for evaluation near the end of the contract period.

Ferguson, W.D. [Conectiv, Inc., Wilmington, DE (United States); Nigro, R.M. [Applied Energy Group, Inc., Hauppauge, NY (United States)

1999-01-20T23:59:59.000Z

27

Gainesville Regional Utilities - Solar-Electric (PV) System Rebate Program  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Gainesville Regional Utilities - Solar-Electric (PV) System Rebate Gainesville Regional Utilities - Solar-Electric (PV) System Rebate Program Gainesville Regional Utilities - Solar-Electric (PV) System Rebate Program < Back Eligibility Residential Savings Category Solar Buying & Making Electricity Maximum Rebate $5,000 Program Info Start Date 10/1/2010 State Florida Program Type Utility Rebate Program Rebate Amount Solar window of 80% or more: $1.00/watt Provider Gainesville Regional Utilities '''''NOTE: Application targets for fiscal year 2013 have been met for the GRU Solar PV Rebate Program. The next round of applications are scheduled to open on October 1, 2013 pending approval of the GRU budget by the Gainesville City Commission.''''' Gainesville Regional Utilities (GRU) offers its customers a rebate to install photovoltaic (PV) systems. Systems with solar windows of 80% or

28

Codes, standards, and PV power systems. A 1996 status report  

SciTech Connect

As photovoltaic (PV) electrical power systems gain increasing acceptance for both off-grid and utility-interactive applications, the safety, durability, and performance of these systems gains in importance. Local and state jurisdictions in many areas of the country require that all electrical power systems be installed in compliance with the requirements of the National Electrical Code{reg_sign} (NEC{reg_sign}). Utilities and governmental agencies are now requiring that PV installations and components also meet a number of Institute of Electrical and Electronic Engineers (IEEE) standards. PV installers are working more closely with licensed electricians and electrical contractors who are familiar with existing local codes and installation practices. PV manufacturers, utilities, balance of systems manufacturers, and standards representatives have come together to address safety and code related issues for future PV installations. This paper addresses why compliance with the accepted codes and standards is needed and how it is being achieved.

Wiles, J

1996-06-01T23:59:59.000Z

29

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

E-Print Network (OSTI)

of the Effects of Photovoltaic Energy Systems on Residentialmarginal impacts of photovoltaic (PV) energy systems on homeThe market for photovoltaic (PV) energy systems is expanding

Hoen, Ben

2013-01-01T23:59:59.000Z

30

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

E-Print Network (OSTI)

PV system components and installations meet minimum industry standards related to safety, reliability, andPV Systems Rated Output Modules Inverters Systems (grid-connected) Product Reliability

Barbose, Galen; Wiser, Ryan; Bolinger, Mark

2006-01-01T23:59:59.000Z

31

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

DOE Green Energy (OSTI)

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.

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

2009-12-01T23:59:59.000Z

32

Characterizing Shading Losses on Partially Shaded PV Systems (Presentation)  

DOE Green Energy (OSTI)

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

Deline, C.

2010-09-23T23:59:59.000Z

33

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

Science Conference Proceedings (OSTI)

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.

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

2012-01-01T23:59:59.000Z

34

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

Science Conference Proceedings (OSTI)

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

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

2009-11-30T23:59:59.000Z

35

Blocking diodes and fuses in low-voltage PV systems  

DOE Green Energy (OSTI)

Instructions and labels supplied with listed PV modules and the requirements of the National Electrical Code (NEC) dictate that a series fuse shall be used to protect the module against backfeed currents. Few of the hundreds of thousands of low-voltage (12, 24, and 48-volt) stand-alone photovoltaic (PV) power systems use series fuses on each module or string of modules. Tests and simulations at the Southwest Technology Development Institute (TDI) and at Sandia National Laboratories (SNL) have established that the absence of these fuses can pose significant fire and safety hazards even on 12-volt PV systems. If the system has sufficient backfeed voltage and current, it is possible that a ground fault in the wiring or inside a module can result in the destruction of a PV module.

Wiles, J.C. [New Mexico State Univ., Las Cruces, NM (United States). Southwest Technology Development Inst.; King, D.L. [Sandia National Labs., Albuquerque, NM (United States). Photovoltaic Systems R and D

1997-11-01T23:59:59.000Z

36

High Penetration PV Deployment in the Arizona Public Service System  

DOE Green Energy (OSTI)

In an effort to better understand the impacts of high penetrations of photovoltaic (PV) generators on distribution systems, Arizona Public Service (APS) and its partners have begun work on a multi-year project to develop the tools and knowledgebase needed to safely and reliably integrate high penetrations of utility and residential scale 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 1.5 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. The goal of this paper is to provide insight and lessons learned on the early stages of high penetration PV deployment. Primarily focusing on modeling and data acquisition, this paper describes the overall project, early results, and plans for future phases of the project.

Narang, D.; Hambrick, J.

2011-01-01T23:59:59.000Z

37

ELEG620: Solar Electric Systems University of Delaware, ECE Spring 2008 C. Honsberg PV System Components  

E-Print Network (OSTI)

· Batteries required if (1) load profile solar radiation profile and (2) to mitigate effect of variability · PV System components: ­ PV Modules ­ Batteries ­ Power Conditioning ­ Loads ­ Balance of systems #12

Honsberg, Christiana

38

Instrumentation for Evaluating PV System Performance Losses from Snow  

DOE Green Energy (OSTI)

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.

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

2009-01-01T23:59:59.000Z

39

A Monolithic Microconcentrator Receiver For A Hybrid PV?Thermal System: Preliminary Performance  

Science Conference Proceedings (OSTI)

An innovative hybrid PV?thermal microconcentrator (MCT) system is being jointly developed by Chromasun Inc.

D. Walter; V. Everett; M. Vivar; J. Harvey; R. Van Scheppingen; S. Surve; J. Muric?Nesic; A. Blakers

2010-01-01T23:59:59.000Z

40

Massachusetts Middle School Goes Local for PV Solar Energy System |  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Middle School Goes Local for PV Solar Energy System Middle School Goes Local for PV Solar Energy System Massachusetts Middle School Goes Local for PV Solar Energy System August 13, 2010 - 11:00am Addthis New 26 kW solar energy system to be part of curriculum at Norton Middle School. | Photo courtesy of Norton Public Schools New 26 kW solar energy system to be part of curriculum at Norton Middle School. | Photo courtesy of Norton Public Schools Lindsay Gsell What are the key facts? Using Recovery Act Funding, Norton Middle School installed a 126 panel solar system. The school expects to save $6,000 in energy costs each year. Materials for solar system came from local Massachusetts companies. When the school buses pull up to Norton Middle School this year, students will see more than just their friends and teachers, they'll get a view of

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


41

Massachusetts Middle School Goes Local for PV Solar Energy System |  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Massachusetts Middle School Goes Local for PV Solar Energy System Massachusetts Middle School Goes Local for PV Solar Energy System Massachusetts Middle School Goes Local for PV Solar Energy System August 13, 2010 - 11:00am Addthis New 26 kW solar energy system to be part of curriculum at Norton Middle School. | Photo courtesy of Norton Public Schools New 26 kW solar energy system to be part of curriculum at Norton Middle School. | Photo courtesy of Norton Public Schools Lindsay Gsell What are the key facts? Using Recovery Act Funding, Norton Middle School installed a 126 panel solar system. The school expects to save $6,000 in energy costs each year. Materials for solar system came from local Massachusetts companies. When the school buses pull up to Norton Middle School this year, students will see more than just their friends and teachers, they'll get a view of

42

A standardized approach to PV system performance model validation.  

DOE Green Energy (OSTI)

PV performance models are used to predict how much energy a PV system will produce at a given location and subject to prescribed weather conditions. These models are commonly used by project developers to choose between module technologies and array designs (e.g., fixed tilt vs. tracking) for a given site or to choose between different geographic locations, and are used by the financial community to establish project viability. Available models can differ significantly in their underlying mathematical formulations and assumptions and in the options available to the analyst for setting up a simulation. Some models lack complete documentation and transparency, which can result in confusion on how to properly set up, run, and document a simulation. Furthermore, the quality and associated uncertainty of the available data upon which these models rely (e.g., irradiance, module parameters, etc.) is often quite variable and frequently undefined. For these reasons, many project developers and other industry users of these simulation tools have expressed concerns related to the confidence they place in PV performance model results. To address this problem, we propose a standardized method for the validation of PV system-level performance models and a set of guidelines for setting up these models and reporting results. This paper describes the basic elements for a standardized model validation process adapted especially for PV performance models, suggests a framework to implement the process, and presents an example of its application to a number of available PV performance models.

Stein, Joshua S.; Jester, Terry (Hudson Clean Energy Partners); Posbic, Jean (BP Solar); Kimber, Adrianne (First Solar); Cameron, Christopher P.; Bourne, Benjamin (SunPower Corporation)

2010-10-01T23:59:59.000Z

43

Economic analysis of PV hybrid power system: Pinnacles National Monument  

DOE Green Energy (OSTI)

PV hybrid electric power systems can offer an economically competitive alternative to engine generator (genset) systems in many off-grid applications. Besides the obvious `green` advantages of producing less noise and emissions, the PV hybrid can, in some cases, offer a lower life-cycle cost (LCC) then the genset. This paper evaluates the LCC of the 9.6 kWp PV hybrid power system installed by the National Park Services (NPS) at Pinnacles National Monument, CA. NPS motivation for installation of this hybrid was not based on economics, but rather the need to replace two aging diesel gensets with an alternative that would be quieter, fuel efficient, and more in keeping with new NPS emphasis on sustainable design and operations. In fact, economic analysis shows a lower 20-year LCC for the installed PV hybrid than for simple replacement of the two gensets. The analysis projects are net savings by the PV hybrid system of $83,561 and over 162,000 gallons of propane when compared with the genset-only system. This net savings is independent of the costs associated with environmental emissions. The effects of including emissions costs, according to NPS guidelines, is also discussed. 5 refs., 2 figs., 3 tabs.

Rosenthal, A.; Durand, S. [Southwest Technology Development Institute, Las Cruces, NM (United States); Thomas, M.; Post, H. [Sandia National Labs., Albuquerque, NM (United States)

1997-11-01T23:59:59.000Z

44

Incorporating Aggregated PV Systems into the Power Grid | Open Energy  

Open Energy Info (EERE)

Incorporating Aggregated PV Systems into the Power Grid Incorporating Aggregated PV Systems into the Power Grid Jump to: navigation, search Tool Summary LAUNCH TOOL Name: Spain Installed Wind Capacity Website Focus Area: Renewable Energy Topics: Market Analysis Website: www.gwec.net/index.php?id=131 Equivalent URI: cleanenergysolutions.org/content/spain-installed-wind-capacity-website Language: English Policies: Regulations Regulations: Feed-in Tariffs This website presents an overview of total installed wind energy capacity in Spain per year from 2000 to 2010. The page also presents the main market developments from 2010; a policy summary; a discussion of the revision in feed-in tariffs in 2010; and a future market outlook. References Retrieved from "http://en.openei.org/w/index.php?title=Incorporating_Aggregated_PV_Systems_into_the_Power_Grid&oldid=514463

45

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

E-Print Network (OSTI)

1 Keywords: Photovoltaic System, fault-tolerance, recon- figurable PV panel Photovoltaic (PV plants, and satellites. The output power of a PV cell (also called solar cell) is dependent on the solar irradiance level and temperature. Figure 1 shows PV cell output current-voltage and power

Pedram, Massoud

46

Berkeley Program Offers New Option for Financing Residential PV Systems  

Science Conference Proceedings (OSTI)

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.

Bolinger, Mark A

2008-07-06T23:59:59.000Z

47

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

E-Print Network (OSTI)

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 ...

Khadkikar, Vinod

48

205 kW Photovoltaic (PV) System Installed on the U.S. Department...  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

205 kW Photovoltaic (PV) System Installed on the U.S. Department of Energy's Forrestal Building 205 kW Photovoltaic (PV) System Installed on the U.S. Department of Energy's...

49

Top Hat Pressure System Hyperbaric Test Analysis | Department...  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Top Hat Pressure System Hyperbaric Test Analysis Top Hat Pressure System Hyperbaric Test Analysis This file contains data from pressure measurements inside Top Hat 4....

50

Optimal Design of Hybrid Energy System with PV/ Wind Turbine/ Storage: A Case Study  

E-Print Network (OSTI)

Optimal Design of Hybrid Energy System with PV/ Wind Turbine/ Storage: A Case Study Rui Huang development of photovoltaic (PV), wind turbine and battery technologies, hybrid energy system has received of the hybrid energy system that consists of PV arrays, wind turbines and battery storage and use that to define

Low, Steven H.

51

A software tool for optimal sizing of PV systems in Malaysia  

Science Conference Proceedings (OSTI)

This paper presents a MATLAB based user friendly software tool called as PV. MY for optimal sizing of photovoltaic (PV) systems. The software has the capabilities of predicting themetrological variables such as solar energy, ambient temperature and wind ...

Tamer Khatib; Azah Mohamed; K. Sopian

2012-01-01T23:59:59.000Z

52

Distributed Power Electronics for PV Systems (Presentation)  

DOE Green Energy (OSTI)

An overview of the benefits and applications of microinverters and DC power optimizers in residential systems. Some conclusions from this report are: (1) The impact of shade is greater than just the area of shade; (2) Additional mismatch losses include panel orientation, panel distribution, inverter voltage window, soiling; (3) Per-module devices can help increase performance, 4-12% or more depending on the system; (4) Value-added benefits (safety, monitoring, reduced design constraints) are helping their adoption; and (5) The residential market is growing rapidly. Efficiency increases, cost reductions are improving market acceptance. Panel integration will further reduce price and installation cost. Reliability remains an unknown.

Deline, C.

2011-12-01T23:59:59.000Z

53

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

E-Print Network (OSTI)

system reliability requirements, with the lowest value of levelised cost of energy. Modelling a hybrid PV mathematical models for characterizing PV module, wind generator and battery are proposed. The second step of the hybrid PV/wind system are the reliable power supply of the consumer under varying atmospheric conditions

Paris-Sud XI, Université de

54

Rooftop PV system. Final technical progress report, Phase II  

SciTech Connect

Under this four-year PV:BONUS Program, ECD and United Solar are developing and demonstrating two new lightweight flexible building integrated Photovoltaic (BIPV) modules specifically designed as exact replacements for conventional asphalt shingles and standing seam metal roofing. These modules can be economically and aesthetically integrated into new residential and commercial buildings, and address the even larger roofing replacement market. The modules are designed to be installed by roofing contractors without special training which minimizes the installation and balance of system costs. The modules will be fabricated from high-efficiency, multiple-junction a-Si alloy solar cells developed by ECD and United Solar. Under the Phase I Program, which ended in March 1994, we developed two different concept designs for rooftop PV modules: (1) the United Solar overlapping (asphalt shingle replacement) shingle-type modules and (2) the ECD metal roof-type modules. We also developed a plan for fabricating, testing and demonstrating these modules. Candidate demonstration sites for our rooftop PV modules were identified and preliminary engineering designs for these demonstrations were developed; a marketing study plan was also developed. The major objectives of the Phase II Program, which started in June 1994 was (1) to develop, test, and qualify these new rooftop modules; (2) to develop mechanical and electrical engineering specifications for the demonstration projects; and (3) to develop a marketing/commercialization plan.

1995-08-01T23:59:59.000Z

55

Solar PV Manufacturing Cost Model Group: Installed Solar PV System Prices (Presentation)  

SciTech Connect

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.

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

2011-02-01T23:59:59.000Z

56

Solar PV Manufacturing Cost Model Group: Installed Solar PV System Prices (Presentation)  

DOE Green Energy (OSTI)

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.

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

2011-02-01T23:59:59.000Z

57

Rooftop PV system. PV:BONUS Phase 3B, final technical report  

SciTech Connect

Under the PV:BONUS Program, ECD and United Solar developed, demonstrated and commercialized two new lightweight, flexible BIPV modules specifically designed as replacements for conventional asphalt shingles and standing seam metal roofing. These modules can be economically and aesthetically integrated into new residential and commercial buildings, and can be used to address the even larger roofing-replacement market. An important design feature of these modules, which minimizes the installation and balance-of-system costs, is their ability to be installed by conventional roofing contractors without special training. The modules are fabricated from high-efficiency, triple-junction spectrum-splitting a-Si alloy solar cells developed by ECD and United Solar. These cells are produced on thin, flexible stainless steel substrates and encapsulated with polymer materials. The Phase 3 program began in August 1995. The principal tasks and goals of this program, which have all been successfully completed by ECD and United Solar, are described in the body and appendices of this report.

1998-11-01T23:59:59.000Z

58

Quantify Degradation Rates and Mechanisms of PV Modules and Systems Installed in Florida Through Comprehensive Experimental and Theoretical Analysis (Poster)  

Science Conference Proceedings (OSTI)

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.

Sorloaica-Hickman, N.; Davis, K.; Kurtz, S.; Jordan, D.

2011-02-01T23:59:59.000Z

59

Accelerating PV Cost Effectiveness Through Systems Design, Engineering, and Quality Assurance: Final Subcontract Report, June 2007  

SciTech Connect

This report describes PowerLight Corporation's significant progress toward the reduction of installed costs for commercial-scale, rooftop PV systems.

Botkin, J.

2007-12-01T23:59:59.000Z

60

Partially Shaded Operation of a Grid-Tied PV System: Preprint  

SciTech Connect

This paper presents background and experimental results from a single-string grid-tied PV system, operated under a variety of shading conditions.

Deline, C.

2009-06-01T23:59:59.000Z

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


61

Accelerating PV Cost Effectiveness Through Systems Design, Engineering, and Quality Assurance: Final Subcontract Report, June 2007  

DOE Green Energy (OSTI)

This report describes PowerLight Corporation's significant progress toward the reduction of installed costs for commercial-scale, rooftop PV systems.

Botkin, J.

2007-12-01T23:59:59.000Z

62

Bulk Electricity System Impacts of Distributed and Transmission System Connected Solar PV  

Science Conference Proceedings (OSTI)

This report describes research examining how increased levels of photovoltaic (PV) can impact the bulk electricity system. Previous modeling of both bulk and distributed systems was extended to include more realistic assumptions, further sensitivities, and greater explanation of results. It was shown that high penetrations of distributed PV without low-voltage ride-through (LVRT) will increase voltage recovery time after a fault. The impact is exacerbated when the potential for residential ac ...

2012-12-31T23:59:59.000Z

63

A control system for improved battery utilization in a PV-powered peak-shaving system  

SciTech Connect

Photovoltaic (PV) power systems offer the prospect of allowing a utility company to meet part of the daily peak system load using a renewable resource. Unfortunately, some utilities have peak system- load periods that do not match the peak production hours of a PV system. Adding a battery energy storage system to a grid-connected PV power system will allow dispatching the stored solar energy to the grid at the desired times. Batteries, however, pose system limitations in terms of energy efficiency, maintenance, and cycle life. A new control system has been developed, based on available PV equipment and a data acquisition system, that seeks to minimize the limitations imposed by the battery system while maximizing the use of PV energy. Maintenance requirements for the flooded batteries are reduced, cycle life is maximized, and the battery is operated over an efficient range of states of charge. This paper presents design details and initial performance results on one of the first installed control systems of this type.

Palomino, E [Salt River Project, Phoenix, AZ (United States); Stevens, J. [Sandia National Labs., Albuquerque, NM (United States); Wiles, J. [New Mexico State Univ., Las Cruces, NM (United States). Southwest Technology Development Inst.

1996-08-01T23:59:59.000Z

64

Performance Parameters for Grid-Connected PV Systems  

NLE Websites -- All DOE Office Websites (Extended Search)

National Renewable Energy Laboratory National Renewable Energy Laboratory 1617 Cole Boulevard, Golden, Colorado 80401-3393 303-275-3000 * www.nrel.gov Operated for the U.S. Department of Energy Office of Energy Efficiency and Renewable Energy by Midwest Research Institute * Battelle Contract No. DE-AC36-99-GO10337 B. Marion, J. Adelstein, and K. Boyle National Renewable Energy Laboratory H. Hayden, B. Hammond, T. Fletcher, B. Canada, and D. Narang Arizona Public Service Co. D. Shugar, H. Wenger, A. Kimber, and L. Mitchell PowerLight Corporation G. Rich and T. Townsend First Solar Prepared for the 31 st IEEE Photovoltaics Specialists Conference and Exhibition Lake Buena Vista, Florida January 3-7, 2005 February 2005 * NREL/CP-520-37358 Performance Parameters for Grid-Connected PV Systems

65

Low Cost High Concentration PV Systems for Utility Power Generation Amonix,  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Amonix, Inc. Amonix, Inc. Low Cost High Concentration PV Systems for Utility Power Generation Amonix, Inc. A series of brief fact sheet on various topics including:Low Cost High Concentration PV Systems for Utility Power Generation,High Efficiency Concentrating Photovoltaic Power System,Reaching Grid Parity Using BP Solar Crystalline Silicon Technology, Fully Integrated Building Science Solutions for Residential and Commercial Photovoltaic Energy Generation,A Value Chain Partnership to Accelerate U.S. Photovoltaic Industry Growth,AC Module PV System,Flexible Organic Polymer-Based PV For Building Integrated Commercial Applications,Flexable Integrated PV System,Delivering Grid-Parity Solar Electricity On Flat Commercial Rooftops,Fully Automated Systems Technology, Concentrating Solar Panels: Bringing the Highest Power and Lowest Cost to

66

Solar San Diego: The Impact of Binomial Rate Structures on Real PV Systems; Preprint  

DOE Green Energy (OSTI)

There is confusion in the marketplace regarding the impact of solar photovoltaics (PV) on the user's actual electricity bill under California Net Energy Metering, particularly with binomial tariffs (those that include both demand and energy charges) and time-of-use (TOU) rate structures. The City of San Diego has extensive real-time electrical metering on most of its buildings and PV systems, with interval data for overall consumption and PV electrical production available for multiple years. This paper uses 2007 PV-system data from two city facilities to illustrate the impacts of binomial rate designs. The analysis will determine the energy and demand savings that the PV systems are achieving relative to the absence of systems. A financial analysis of PV-system performance under various rate structures is presented. The data revealed that actual demand and energy use benefits of binomial tariffs increase in summer months, when solar resources allow for maximized electricity production. In a binomial tariff system, varying on- and semi-peak times can result in approximately $1,100 change in demand charges per month over not having a PV system in place, an approximate 30% cost savings. The PV systems are also shown to have a 30%-50% reduction in facility energy charges in 2007.

VanGeet, O.; Brown, E.; Blair, T.; McAllister, A.

2008-05-01T23:59:59.000Z

67

Solar San Diego: The Impact of Binomial Rate Structures on Real PV-Systems  

Science Conference Proceedings (OSTI)

There is confusion in the marketplace regarding the impact of solar photovoltaics (PV) on the user's actual electricity bill under California Net Energy Metering, particularly with binomial tariffs (those that include both demand and energy charges) and time-of-use (TOU) rate structures. The City of San Diego has extensive real-time electrical metering on most of its buildings and PV systems, with interval data for overall consumption and PV electrical production available for multiple years. This paper uses 2007 PV-system data from two city facilities to illustrate the impacts of binomial rate designs. The analysis will determine the energy and demand savings that the PV systems are achieving relative to the absence of systems. A financial analysis of PV-system performance under various rates structures is presented. The data revealed that actual demand and energy use benefits of bionomial tariffs increase in summer months, when solar resources allow for maximized electricity production. In a binomial tariff system, varying on- and semi-peak times can result in approximately $1,100 change in demand charges per month over not having a PV system in place, an approximate 30% cost savings. The PV systems are also shown to have a 30%-50% reduction in facility energy charges in 2007. Future work will include combining demand and electricity charges and increasing the breadth of rate structures tested, including the impacts of non-coincident demand charges.

Van Geet, O.; Brown, E.; Blair, T.; McAllister, A.

2008-01-01T23:59:59.000Z

68

Battery Sizing for Grid Connected PV Systems with Fixed Minimum Charging/Discharging Time  

E-Print Network (OSTI)

Battery Sizing for Grid Connected PV Systems with Fixed Minimum Charging/Discharging Time Yu Ru, Jan Kleissl, and Sonia Martinez Abstract-- In this paper, we study a battery sizing problem for grid-connected photovoltaic (PV) systems assuming that the battery charging/discharging limit scales linearly with its

Martínez, Sonia

69

Remote performance check and automated failure identification for grid-connected PV systems  

E-Print Network (OSTI)

energy yield against an expected, simulated value. A PV simulation model, which employs inexpensiveRemote performance check and automated failure identification for grid-connected PV systems reliable operation of small systems up to 5 kWp. The detection and identification of a failure is strongly

Heinemann, Detlev

70

PV Standards Work: Photovoltaic System and Component Certification, Test Facility Accreditation, and Solar Photovoltaic Energy Systems International Standards  

DOE Green Energy (OSTI)

This paper discusses efforts led by two companies (PowerMark Corporation and Sunset Technologies Inc.) to support both U.S. domestic and international photovoltaic (PV) system and component certification and test facility accreditation programs and the operation of the International Electrotechnical Commission (IEC) Technical Committee 82 (TC-82) Photovoltaic Energy Systems. International and national PV certification/accreditation programs are successfully facilitating entry of only the highest quality PV products into the marketplace. Standards also continue to be a cornerstone for assuring global PV product conformity assessment, reducing non-tariff trade barriers, and ultimately improving PV products while lowering cost.

Basso, T. S.; Chalmers, S.; Barikmo, H. O.

2005-11-01T23:59:59.000Z

71

INTEGRATING THE DESIGN AND RELIABILITY ASSESSMENT OF A HYBRID PV-THERMAL MICROCONCENTRATOR SYSTEM  

E-Print Network (OSTI)

INTEGRATING THE DESIGN AND RELIABILITY ASSESSMENT OF A HYBRID PV-THERMAL MICROCONCENTRATOR SYSTEM M that the materials from the power electronics industry are also reliable when used in a concentrator PV module and reliability testing have been integrated as concurrent processes, enabling the early optimisation

72

Load Sharing in a Hybrid Power System with a PV Panel and a PEM Fuel-Cell  

E-Print Network (OSTI)

varies with the time of the day. In order to improve the reliability of PV energy and at the same timeLoad Sharing in a Hybrid Power System with a PV Panel and a PEM Fuel-Cell Dachuan Yu S. Yuvarajan power system with PV panels and a PEM fuel cell is described. The system draws the maximum power

Yuvarajan, Subbaraya

73

Economics and performance of PV hybrid power systems: Three case studies  

DOE Green Energy (OSTI)

The Photovoltaic Systems Assistance Center (PVSAC) of Sandia National Laboratories (SNL) has been supporting the development and implementation of off-grid PV hybrid power systems for many years. Technical support has included: refining hardware; understanding system design techniques; obtaining operation and maintenance data; studying use of energy produced. As part of the program, the PVSAC has provided technical expertise on hybrid systems to many federal agencies including the National Park Service, the Forest Service, the Bureau of Land Management, and the Department of Defense. The goal of these partnerships has been to ensure that reliable and safe PV hybrid systems are specified and procured. At present, a critical review of performance and costs of several representative PV hybrid systems is underway. This paper presents a summary of the performance and economical analyses conducted on three PV hybrid systems.

Rosenthal, A.L.; Durand, S.J. [Southwest Technology Development Inst., Las Cruces, NM (United States); Thomas, M.G.; Post, H.N. [Sandia National Labs., Albuquerque, NM (United States)

1998-07-01T23:59:59.000Z

74

Optimal Design of Integration of Intelligent, Adaptive Solar (PV) Power Generator with Grid for Domestic Energy Management System  

Science Conference Proceedings (OSTI)

This paper introduces a novel system based on integration of solar power generator with grid for optimal utilization of energy by minimizing the power drawn from grid. A prototype grid integrated PV system comprising of PV module (2*75Wp), battery bank ... Keywords: Solar power Generator (SPG), Domestic Energy Management, Bi-directional Inverter, Photovoltaic(PV), Total Harmonic Distortion (THD)

S. N. Singh; Pooja Singh; Swati Kumari; Swati

2010-03-01T23:59:59.000Z

75

Amp-hour counting control for PV hybrid power systems  

SciTech Connect

The performance of an amp-hour (Ah) counting battery charge control algorithm has been defined and tested using the Digital Solar Technologies MPR-9400 microprocessor based PV hybrid charge controller. This work included extensive field testing of the charge algorithm on flooded lead-antimony and valve regulated lead-acid (VRLA) batteries. The test results after one-year have demonstrated that PV charge utilization, battery charge control, and battery state of charge (SOC) has been significantly improved by providing maximum charge to the batteries while limiting battery overcharge to manufacturers specifications during variable solar resource and load periods.

Hund, T.D. [Sandia National Labs., Albuquerque, NM (United States); Thompson, B. [Biri Systems, Ithaca, NY (United States)

1997-06-01T23:59:59.000Z

76

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

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

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

77

205 kW Photovoltaic (PV) System Installed on the U.S. Department...  

NLE Websites -- All DOE Office Websites (Extended Search)

in partnership with the General Services Administration (GSA), has installed a rooftop solar electric, or PV, system on the roof of DOE's headquarters in Washington, D.C. The...

78

Multi-Objective Capacity Planning of a Pv-Wind-Diesel-Battery Hybrid Power System  

E-Print Network (OSTI)

A new solution methodology of the capacity design problem of a PV-Wind-Diesel-Battery Hybrid Power System (HPS) is presented. The problem is formulated as a Linear Programming (LP) model with two objectives: minimizing ...

Saif, A.

79

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

E-Print Network (OSTI)

for interconnection or net metering, or by lawmakers andi.e. , separate from net metering of the facilitys load (knowledge and capabilities. Net metering provides PV system

Barbose, Galen; Wiser, Ryan; Bolinger, Mark

2006-01-01T23:59:59.000Z

80

AC Solar Cells: An Embedded All in One PV Power System  

Science Conference Proceedings (OSTI)

Grid-tied power converters in a photovoltaic (PV) system constructed from discrete components are difficult to mass produce, and the installation involves a significant labor cost to have the proper interconnection among the panel, the inverter, and the grid. Several critical applications such as portable power stations in a battlefield or any scientific expedition will require several key attributes from a PV-based power system, such as modularity, high reliability, and quick setup time. Therefore, a ...

2013-12-18T23:59:59.000Z

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


81

Plug and Play Components for Building Integrated PV Systems, Phase II Final Report, 20 February 2003 - 31 May 2007  

SciTech Connect

Progress by Schott Solar, Inc. under NREL's PV Manufacturing R&D Project. Details progress on meter-interconnect device; free-standing mounting system; dark I-V curves to unearth problems with PV module strings; new 34-V version of ASE-300 PV module; and updated source-circuit protectors.

Rowell, D.

2008-04-01T23:59:59.000Z

82

Plug and Play Components for Building Integrated PV Systems, Phase II Final Report, 20 February 2003 - 31 May 2007  

DOE Green Energy (OSTI)

Progress by Schott Solar, Inc. under NREL's PV Manufacturing R&D Project. Details progress on meter-interconnect device; free-standing mounting system; dark I-V curves to unearth problems with PV module strings; new 34-V version of ASE-300 PV module; and updated source-circuit protectors.

Rowell, D.

2008-04-01T23:59:59.000Z

83

Designing PV Incentive Programs to Promote System Performance: AReview of Current Practice  

SciTech Connect

Some stakeholders continue to voice concerns about the performance of customer-sited photovoltaic (PV) systems, particularly because these systems typically receive financial support through ratepayer- or publicly-funded programs. Although much remains to be understood about the extent and specific causes of poor PV system performance, several studies of the larger programs and markets have shed some light on the issue. An evaluation of the California Energy Commission (CEC)'s Emerging Renewables Program, for example, found that 7% of systems, in a sample of 95, had lower-than-expected power output due to shading or soiling (KEMA 2005). About 3% of a larger sample of 140 systems were not operating at all or were operating well below expected output, due to failed equipment, faulty installation workmanship, and/or a lack of basic maintenance. In a recent evaluation of the other statewide PV incentive program in California, the Self-Generation Incentive Program, 9 of 52 projects sampled were found to have annual capacity factors less than 14.5%, although reasons for these low capacity factors generally were not identified (Itron 2005). Studies of PV systems in Germany and Japan, the two largest PV markets worldwide, have also revealed some performance problems associated with issues such as shading, equipment and installation defects, inverter failure, and deviations from module manufacturers' specifications (Otani et al. 2004, Jahn & Nasse 2004). Although owners of PV systems have an inherent incentive to ensure that their systems perform well, many homeowners and building operators may lack the necessary information and expertise to carry out this task effectively. Given this barrier, and the responsibility of PV incentive programs to ensure that public funds are prudently spent, these programs should (and often do) play a critical role in promoting PV system performance. Performance-based incentives (PBIs), which are based on actual energy production rather than the rated capacity of the modules or system, are often suggested as one possible strategy. Somewhat less recognized are the many other program design options also available, each with its particular advantages and disadvantages. To provide a point of reference for assessing the current state of the art, and to inform program design efforts going forward, we examine the approaches to encouraging PV system performance - including, but not limited to, PBIs - used by 32 prominent PV incentive programs in the U.S. (see Table 1).1 We focus specifically on programs that offer an explicit subsidy payment for customer-sited PV installations. PV support programs that offer other forms of financial support or that function primarily as a mechanism for purchasing renewable energy credits (RECs) through energy production-based payments are outside the scope of our review.2 The information presented herein is derived primarily from publicly available sources, including program websites and guidebooks, programs evaluations, and conference papers, as well as from a limited number of personal communications with program staff. The remainder of this report is organized as follows. The next section presents a simple conceptual framework for understanding the issues that affect PV system performance and provides an overview of the eight general strategies to encourage performance used among the programs reviewed in this report. The subsequent eight sections discuss in greater detail each of these program design strategies and describe how they have been implemented among the programs surveyed. Based on this review, we then offer a series of recommendations for how PV incentive programs can effectively promote PV system performance.

Barbose, Galen; Wiser, Ryan; Bolinger, Mark

2006-11-12T23:59:59.000Z

84

Hybrid photovoltaic/thermal (PV/T) solar systems simulation with Simulink/Matlab  

Science Conference Proceedings (OSTI)

The purpose of this work consists in thermodynamic modeling of hybrid photovoltaic-thermal (PV/T) solar systems, pursuing a modular strategy approach provided by Simulink/Matlab. PV/T solar systems are a recently emerging solar technology that allows for the simultaneous conversion of solar energy into both electricity and heat. This type of technology present some interesting advantages over the conventional ''side-by-side'' thermal and PV solar systems, such as higher combined electrical/thermal energy outputs per unit area, and a more uniform and aesthetical pleasant roof area. Despite the fact that early research on PV/T systems can be traced back to the seventies, only recently it has gained a renewed impetus. In this work, parametric studies and annual transient simulations of PV/T systems are undertaken in Simulink/Matlab. The obtained results show an average annual solar fraction of 67%, and a global overall efficiency of 24% (i.e. 15% thermal and 9% electrical), for a typical four-person single-family residence in Lisbon, with p-Si cells, and a collector area of 6 m{sup 2}. A sensitivity analysis performed on the PV/T collector suggests that the most important variable that should be addressed to improve thermal performance is the photovoltaic (PV) module emittance. Based on those results, some additional improvements are proposed, such as the use of vacuum, or a noble gas at low-pressure, to allow for the removal of PV cells encapsulation without air oxidation and degradation, and thus reducing the PV module emittance. Preliminary results show that this option allows for an 8% increase on optical thermal efficiency, and a substantial reduction of thermal losses, suggesting the possibility of working at higher fluid temperatures. The higher working temperatures negative effect in electrical efficiency was negligible, due to compensation by improved optical properties. The simulation results are compared with experimental data obtained from other authors and perform reasonably well. The Simulink modeling platform has been mainly used worldwide on simulation of control systems, digital signal processing and electric circuits, but there are very few examples of application to solar energy systems modeling. This work uses the modular environment of Simulink/Matlab to model individual PV/T system components, and to assemble the entire installation layout. The results show that the modular approach strategy provided by Matlab/Simulink environment is applicable to solar systems modeling, providing good code scalability, faster developing time, and simpler integration with external computational tools, when compared with traditional imperative-oriented programming languages. (author)

da Silva, R.M.; Fernandes, J.L.M. [Department of Mechanical Engineering, Instituto Superior Tecnico, Lisbon (Portugal)

2010-12-15T23:59:59.000Z

85

Impact of High-Penetration PV on Distribution System Performance: Assessment of Regulation Control Options for Voltage Mitigation  

Science Conference Proceedings (OSTI)

Photovoltaics are beginning to challenge distribution system power engineers nationwide. The impact photovoltaics (PV) has on the power system is directly tied to system characteristics which include but are not limited to voltage class, load, regulation, and short circuit capacity. In addition to the system characteristics, the solar characteristics also play a key role. These include details on the PV systems themselves in addition to the solar irradiance data. The correlation of PV output and ...

2012-12-31T23:59:59.000Z

86

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

E-Print Network (OSTI)

2006. Celentano, Ron. 2005. SDF Solar PV Grant Program inSolar Rewards Program Solar PV Rebate Program (Small PVSolar Electric Program Solar PV Grant Program ** Residential

Barbose, Galen; Wiser, Ryan; Bolinger, Mark

2006-01-01T23:59:59.000Z

87

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

DOE Green Energy (OSTI)

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.

Hambrick, J.; Narang, D.

2012-06-01T23:59:59.000Z

88

The influence of utility - interactive PV system characteristics to AC power network  

SciTech Connect

Two experimental PV systems are constructed and operated. One is a system with a line-commutated inverter and another uses a self-commutated inverter and is operated alone as an independent power source when the power network is in trouble. Operating and generating characteristics have been measured for the line-commutated inverter system and for the self-commutated inverter system connected to the Ac simulated network which simulates the actual power distribution system. For the system voltage fluctuation, amplitude of variation in AC voltage was measured at the joining point of the simulated distribution network connected to the PV system by changing the system short circuit current ration. For the harmonics characteristics, the line-commutated inverter system is a harmonic current power source and the self-commutated inverter system is a harmonic voltage power source. The protective sequence for failures in the power system or PV system is also studied. An optimum protection control method with an emphasis on safety is proposed for the self-commutated inverter system. This paper also describes examples of failures in solar cell arrays during the operation of these PV systems and proposes data for improving the reliability of solar cell arrays.

Takeda, Y.; Kaminosono, H.; Takigawa, K.

1982-09-01T23:59:59.000Z

89

Capacity Value of PV and Wind Generation in the NV Energy System  

Science Conference Proceedings (OSTI)

Calculation of photovoltaic (PV) and wind power capacity values is important for estimating additional load that can be served by new PV or wind installations in the electrical power system. It also is the basis for assigning capacity credit payments in systems with markets. Because of variability in solar and wind resources, PV and wind generation contribute to power system resource adequacy differently from conventional generation. Many different approaches to calculating PV and wind generation capacity values have been used by utilities and transmission operators. Using the NV Energy system as a study case, this report applies peak-period capacity factor (PPCF) and effective load carrying capability (ELCC) methods to calculate capacity values for renewable energy sources. We show the connection between the PPCF and ELCC methods in the process of deriving a simplified approach that approximates the ELCC method. This simplified approach does not require generation fleet data and provides the theoretical basis for a quick check on capacity value results of PV and wind generation. The diminishing return of capacity benefit as renewable generation increases is conveniently explained using the simplified capacity value approach.

Lu, Shuai; Diao, Ruisheng; Samaan, Nader A.; Etingov, Pavel V.

2012-09-01T23:59:59.000Z

90

A Study on the PV System for Simulation Representing Characteristics of DSSC  

Science Conference Proceedings (OSTI)

It is an important factor for the honeypot decoy system to accurately analyze on intrusion information and precisely locate them. As there are some conflict and cooperation relationship among the collected data by honeypot system, it needs to fuse the ... Keywords: Dye-Sensitized Solar Cell, PV system, DLL block, Microsoft Visual C++, PSIM

Won-Yong Chae; Kyoung-Jun Lee; Ho-Sung Kim; Dong-Gil Lee; Hee-Je Kim

2010-05-01T23:59:59.000Z

91

High Penetration of Photovoltaic (PV) Systems into the Distribution Grid, Workshop Report, February 24-25, 2009  

DOE Green Energy (OSTI)

Outcomes from the EERE Solar Energy Technologies Program workshop on high penetration of photovoltaic (PV) systems into the distribution grid, Feb. 24-25, 2009, Ontario, Calif.

Not Available

2009-06-01T23:59:59.000Z

92

TOP 10 VULNERABILITIES OF CONTROL SYSTEMS AND THEIR ASSOCIATED...  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

TOP 10 VULNERABILITIES OF CONTROL SYSTEMS AND THEIR ASSOCIATED MITIGATIONS Introduction SCADA Security for Managers and Operators Intermediate SCADA Security Training Course Slides...

93

Investigation of Synergy Between Electrochemical Capacitors, Flywheels, and Batteries in Hybrid Energy Storage for PV Systems  

DOE Green Energy (OSTI)

This report describes the results of a study that investigated the synergy between electrochemical capacitors (ECs) and flywheels, in combination with each other and with batteries, as energy storage subsystems in photovoltaic (PV) systems. EC and flywheel technologies are described and the potential advantages and disadvantages of each in PV energy storage subsystems are discussed. Seven applications for PV energy storage subsystems are described along with the potential market for each of these applications. A spreadsheet model, which used the net present value method, was used to analyze and compare the costs over time of various system configurations based on flywheel models. It appears that a synergistic relationship exists between ECS and flywheels. Further investigation is recommended to quantify the performance and economic tradeoffs of this synergy and its effect on overall system costs.

Miller, John; Sibley, Lewis, B.; Wohlgemuth, John

1999-06-01T23:59:59.000Z

94

Public Response to Residential Grid-Tied PV Systems in Colorado: A Qualitative Market Assessment  

DOE Green Energy (OSTI)

The early adopters of residential grid-tied photovoltaics (PV) have complex motivations to pay today's costs, including altruistic, environmental, and financial reasons. Focused interviews were conducted with a self-selected purposive sample interested in purchasing 2-kW or 3-kW PV systems with an installed cost of $8,000 to $12,000. The sample tended to be men or married couples ranging in age from their early thirties to their mid-eighties; professionals, managers, or small business owners; relatively financially secure, with experience with energy efficiency and renewable energy. Product attributes they preferred were net metering, warranties, guarantees, utility financing, maintenance, an option to own or lease, a battery option, and an aesthetically pleasing system. Potential PV customers needed more information before making a purchase decision.

Farhar, B. C.; Buhrmann, J.

1998-07-01T23:59:59.000Z

95

A MPPT Control Method of PV System Based on Fuzzy Logic and Particle Swarm Optimization  

Science Conference Proceedings (OSTI)

In the view of the fact that if crystalline silicon cell's photovoltaic system used for power output can not be controlled, it is hard to grantee the maximum power output, which will cause energy dissipation and high cost. Regarding the PV inverter system ... Keywords: MPPT, Fuzzy Logic, Particle Swarm Optimization

Yufeng Hu; Jun Liu; Bin Liu

2012-01-01T23:59:59.000Z

96

Short-Term PV Generation System Direct Power Prediction Model on Wavelet Neural Network and Weather Type Clustering  

Science Conference Proceedings (OSTI)

With the increase of the capacity of PV generated systems, how to eliminate the problem caused by the randomness of power output for photovoltaic system becomes more significant. Most of the existing photovoltaic prediction is Based on the solar radiation. ... Keywords: PV generation system, Wavelet neural network, Weather type clustering, Direct prediction

Ying Yang, Lei Dong

2013-08-01T23:59:59.000Z

97

Techno-economics analysis of a wind/PV hybrid system to provide electricity for a household in Malaysia  

Science Conference Proceedings (OSTI)

This paper is study on techno-economics analysis of a wind/PV hybrid system for a household in Malaysia. One year recorded wind speed and solar radiation are used for the design of a hybrid energy system. In 2004 average annual wind speed in Kuala Terengganu ... Keywords: electrical load, techno-economics analysis, wind/PV hybrid system

Ahmad Fudholi; Mohd Zamri Ibrahim; Mohd Hafidz Ruslan; Lim Chin Haw; Sohif Mat; Mohd Yusof Othman; Azami Zaharim; Kamaruzzaman Sopian

2012-01-01T23:59:59.000Z

98

NREL PV Projects - FUPWG Meeting: "Going Coastal for Energy Efficiency"  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

PV Projects PV Projects FUPWG Meeting: "Going Costal for Energy Efficiency" Bob Westby, NREL FEMP Program Manager and Sustainable NREL Lead April 14-16, 2008 Contents * Mesa Top PV project - CO/utility incentive program - Deal structure/agreements * NREL Phase II proposed projects * Proposal evaluation considerations * Evaluation tools Mesa Top PV Project Mesa Top PV Project * 750 kWdc (1,200,000 kWh) one-axis tracking PV system - Grid connected (NREL "side of the meter") - Milestones  Agreements: January 2008  Operation: August 2008 Solar Rewards Program * CO statute requires solar resource acquisitions by IOU of 20% renewables by 2020 (4% solar "carve out") * Xcel acquisitions made through RFP (bid) process - Selection based on SO-REC* price

99

The comparison of three photovoltaic system designs using the photovoltaic reliability and performance model (PV-RPM).  

SciTech Connect

Most photovoltaic (PV) performance models currently available are designed to use irradiance and weather data and predict PV system output using a module or array performance model and an inverter model. While these models can give accurate results, they do so for an idealized system. That is, a system that does not experience component failures or outages. We have developed the Photovoltaic Reliability and Performance Model (PV-RPM) to more accurately model these PV systems by including a reliability component that simulates failures and repairs of the components of the system, as well as allow for the disruption of the system by external events such as lightning or grid disturbances. In addition, a financial component has also been included to help assess the profitability of a PV system.

Miller, Steven P.; Granata, Jennifer E.; Stein, Joshua S.

2012-12-01T23:59:59.000Z

100

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

E-Print Network (OSTI)

factor satisfies aesthetic demands for general rooftop solar technologies, and is a marked departure fromA 20-SUN HYBRID PV-THERMAL LINEAR MICRO-CONCENTRATOR SYSTEM FOR URBAN ROOFTOP APPLICATIONS D Walter has been developed specifically for urban rooftop environments. The light- weight, low-profile form

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101

Solar PV Project Financing: Regulatory and Legislative Challenges for Third-Party PPA System Owners  

DOE Green Energy (OSTI)

Residential and commercial end users of electricity who want to generate electricity using on-site solar photovoltaic (PV) systems face challenging initial and O&M costs. The third-party ownership power purchase agreement (PPA) finance model addresses these and other challenges. It allows developers to build and own PV systems on customers? properties and sell power back to customers. However, third-party electricity sales commonly face five regulatory challenges. The first three challenges involve legislative or regulatory definitions of electric utilities, power generation equipment, and providers of electric services. These definitions may compel third-party owners of solar PV systems to comply with regulations that may be cost prohibitive. Third-party owners face an additional challenge if they may not net meter, a practice that provides significant financial incentive to owning solar PV systems. Finally, municipalities and cooperatives worry about the regulatory implications of allowing an entity to sell electricity within their service territories. This paper summarizes these challenges, when they occur, and how they have been addressed in five states. This paper also presents alternative to the third-party ownership PPA finance model, including solar leases, contractual intermediaries, standardized contract language, federal investment tax credits, clean renewable energy bonds, and waived monopoly powers.

Kollins, K.; Speer, B.; Cory, K.

2009-11-01T23:59:59.000Z

102

Analysis of concentrating PV-T systems for the commercial/industrial sector. Volume III. Technical issues and design guidance  

DOE Green Energy (OSTI)

This report provide appropriate guidance for addressing the major technical issues associated with the design and installation of a photovoltaic-thermal (PV-T) system. Nomographs are presented for developing preliminary sizing and costing, and issues associated with specific components and the overall design of the electrical and mechanical system are discussed. SAND82-7157/2 presents a review of current PV-T technology and operating systems and a study of potential PV-T applications. Detailed PV-T system designs for three selected applications and the results of a trade-off study for these applications are presented in SAND82-7157/4. A summary of the major results of this entire study and conclusions concerning PV-T systems and applications is presented in SAND82-7157/1.

Schwinkendorf, W.E.

1984-09-01T23:59:59.000Z

103

Study of photovoltaic cost elements. Volume 4. Installation cost model for residential PV systems: users manual. Final report  

SciTech Connect

A quantitative methodology is presented for estimating installation costs of residential photovoltaic systems. The Installation Cost Model for Residential PV Systems is comprised of 144 estimating equations selectively exercised, based on user definition of the system. At the input stage, Residential PV systems can be fully described by 9 design option categories and 9 system specification categories. All assumptions have been validated with installers of solar thermal systems and with TB and A's Architects and Engineers Division. A discussion of the model is included as well as an example of its use with an 8 KW PV system for a Southwest All-Electric Residential design.

1981-07-01T23:59:59.000Z

104

Battery and charge controller evaluations in small stand-alone PV systems  

SciTech Connect

We report the results of to separate long-term tests of batteries and charge controllers in small stand-alone PV systems. In these experiments, seven complete systems were tested for two years at each of two locations: Sandia National Laboratories in Albuquerque and the Florida Solar Energy Center in Cape Canaveral, Florida. Each system contained a PV array, flooded-lead-acid battery, a charge controller and a resistive load. Performance of the systems was strongly influenced by the difference in solar irradiance at the two sites, with some batteries at Sandia exceeding manufacturer`s predictions for cycle life. System performance was strongly correlated with regulation reconnect voltage (R{sup 2} correlation coefficient = 0.95) but only weakly correlated with regulation voltage. We will also discuss details of system performance, battery lifetime and battery water consumption.

Woodworth, J.R.; Thomas, M.G.; Stevens, J.W. [Sandia National Labs., Albuquerque, NM (United States); Dunlop, J.L.; Swamy, M.R.; Demetrius, L. [Florida Solar Energy Center, Cape Canaveral, FL (United States); Harrington, S.R. [K-Tech Corp., Albuquerque, NM (United States)

1994-07-01T23:59:59.000Z

105

S30-A2-02 PROPOSAL OF UNIQUE PV SYSTEM FOR LARGE-SCALE PHOTOVOLTAIC POWER GENERATION SYSTEM  

E-Print Network (OSTI)

In order to make a PV power generation system survive as an economically viable option against other renewable energy sources, drastic reduction of energy cost is inevitable. The authors have been working on the development of a unique PV system to reduce total system cost including solar panel, power conversion unit and installation work [I]. In the proposed concept, AC photovoltaic device and adhesive mounting method were introduced for the dedicated use in power station. By introducing this concept, it is feasible that the system cost will be reduced to 113 compared to the conventional system. The authors believe that the concept is suitable for very large-scale PV systems in desert areas. 1.

Kimitoshi Fukae; Akiharu Takabayashi; Shigenori Itoyama; Ichiro Kataoka; Hidehisa Makita; Masaaki Matsushita; Takaaki Mukai; Nobuyoshi Takehara; Masaki Konishi

2003-01-01T23:59:59.000Z

106

DOE Hydrogen Analysis Repository: PV-Hydrogen System Simulator...  

NLE Websites -- All DOE Office Websites (Extended Search)

Approach: The photovoltaic hydrogen system has a photovoltaic array with an optional maximum power point tracker that supplies electrical energy to the system. This electrical...

107

FORECAST OF ENSEMBLE POWER PRODUCTION BY GRID-CONNECTED PV SYSTEMS Elke Lorenz*, Detlev Heinemann*, Hashini Wickramarathne*, Hans Georg Beyer +  

E-Print Network (OSTI)

FORECAST OF ENSEMBLE POWER PRODUCTION BY GRID-CONNECTED PV SYSTEMS Elke Lorenz*, Detlev Heinemann will highly benefit from forecast information on the expected power production. This forecast information and evaluate an approach to forecast regional PV power production. The forecast quality was investigated

Heinemann, Detlev

108

Overview of PV balance-of-systems technology: Experience and guidelines for utility ties in the United States of America  

DOE Green Energy (OSTI)

The U.S. National Photovoltaic Program began in 1975 by supporting the development of terrestrial PV modules and hardware associated with grid-connected PV systems. Early PV-system demonstration programs were also supported and cost shared by the U.S. Department of Energy (DOE). A wide variety of PV systems were deployed, usually with utility participation. The early demonstration projects provided, and continue to provide, valuable PV system experience to utilities, designers and suppliers. As a result of experience gained, several important milestones in codes and standards pertaining to the design, installation and operation of photovoltaic (PV) systems have been completed. These code and standard activities were conducted through collaboration of participants from all sectors of the PV industry, utilities and the US DOE National Photovoltaic Program. Codes and standards that have been proposed, written, or modified include changes and additions for the 1999 National Electric Code{reg_sign} (NEC{reg_sign}), standards for fire and personnel safety, system testing, field acceptance, component qualification, and utility interconnection. Project authorization requests with the Institute of Electrical and Electronic Engineers (IEEE) have resulted in standards for component qualification and were further adapted for standards used to list PV modules and balance-of-system components. Industry collaboration with Underwriter Laboratories, Inc., with the American Society for Testing and Materials, and through critical input and review for international standards with the International Electrotechnical Commission have resulted in new and revised domestic and international standards for PV applications. Activities related to work on codes and standards through the International Energy Agency are also being supported by the PV industry and the US DOE. The paper shows relationships between activities in standards writing.

Bower, W. [Sandia National Labs., Albuquerque, NM (United States); Whitaker, C. [Endecon Engineering, San Ramon, CA (United States)

1997-10-01T23:59:59.000Z

109

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

E-Print Network (OSTI)

3% of the total sales price of non-PV homes. In the absenceModels Fig. 1: CA PV home sale price premiums expressed inthe selling prices of 329 homes with PV installed in the San

Hoen, Ben

2013-01-01T23:59:59.000Z

110

Development of standardized, low-cost AC PV systems. Phase I annual report, 7 September 1995--7 November 1996  

DOE Green Energy (OSTI)

The objectives of this two-year program are to improve the reliability and safety and reduce the cost of installed grid-connected PV systems by creating standardized, pre-engineered components and an enhanced, low-cost, 250-Watt micro inverter. These advances will be combined with the new, large area Solarex MSX-240 PV module resulting in standard, modular AC PV {open_quotes}building blocks{close_quotes} used to create utility-interactive PV systems as small as one module to many thousands of modules to suit virtually any application. AC PV building blocks will be developed to meet the requirements of the U.S., Japanese and European markets.

Strong, S.J.; Wohlgemuth, J.H.; Kaelin, M.

1997-06-01T23:59:59.000Z

111

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

DOE Green Energy (OSTI)

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.

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

2013-05-01T23:59:59.000Z

112

Market Assessment of Residential Grid-Tied PV Systems in Colorado  

SciTech Connect

This report presents research done in response to a decision by the Colorado Governor's Office of Energy Conservation and Management (OEC) and Colorado utility companies to consider making residential grid-tied photovoltaic (PV) systems available in Colorado. The idea was to locate homeowners willing to pay the costs of grid-tied PV (GPV) systems without batteries-$8,000 or $12,000 for a 2- or 3-kilowatt (kW) system, respectively, in 1996. These costs represented two-thirds of the actual installed cost of $6 per watt at that time and assumed the remainder would be subsidized. The National Renewable Energy Laboratory (NREL) and OEC partnered to conduct a market assessment for GPV technology in Colorado. The study encompassed both qualitative and quantitative phases. The market assessment concluded that a market for residential GPV systems exists in Colorado today. That market is substantial enough for companies to successfully market PV systems to Colorado homeowners. These homeo wners appear ready to learn more, inform themselves, and actively purchase GPV systems. The present situation is highly advantageous to Colorado's institutions-primarily its state government and its utility companies, and also its homebuilders-if they are ready to move forward on GPV technology.

Farhar, B.; Coburn, T.

2000-09-29T23:59:59.000Z

113

Market Assessment of Residential Grid-Tied PV Systems in Colorado  

DOE Green Energy (OSTI)

This report presents research done in response to a decision by the Colorado Governor's Office of Energy Conservation and Management (OEC) and Colorado utility companies to consider making residential grid-tied photovoltaic (PV) systems available in Colorado. The idea was to locate homeowners willing to pay the costs of grid-tied PV (GPV) systems without batteries-$8,000 or $12,000 for a 2- or 3-kilowatt (kW) system, respectively, in 1996. These costs represented two-thirds of the actual installed cost of $6 per watt at that time and assumed the remainder would be subsidized. The National Renewable Energy Laboratory (NREL) and OEC partnered to conduct a market assessment for GPV technology in Colorado. The study encompassed both qualitative and quantitative phases. The market assessment concluded that a market for residential GPV systems exists in Colorado today. That market is substantial enough for companies to successfully market PV systems to Colorado homeowners. These homeo wners appear ready to learn more, inform themselves, and actively purchase GPV systems. The present situation is highly advantageous to Colorado's institutions-primarily its state government and its utility companies, and also its homebuilders-if they are ready to move forward on GPV technology.

Farhar, B.; Coburn, T.

2000-09-29T23:59:59.000Z

114

A Market Assessment of Residential Grid-Tied PV Systems in Colorado: Executive Summary  

DOE Green Energy (OSTI)

This is the Executive Summary of a report that presents research done in response to a decision by the Colorado Governor's Office of Energy Conservation and Management (OEC) and Colorado utility companies to consider making residential grid-tied photovoltaic (PV) systems available in Colorado. The idea was to locate homeowners willing to pay the costs of grid-tied PV (GPV) systems without batteries--$8,000 or $12,000 for a 2- or 3-kilowatt (kW) system, respectively, in 1996. These costs represented two-thirds of the actual installed cost of $6 per watt at that time and assumed the remainder would be subsidized. The National Renewable Energy Laboratory (NREL) and OEC partnered to conduct a market assessment for GPV technology in Colorado. The study encompassed both qualitative and quantitative phases. The market assessment concluded that a market for residential GPV systems exists in Colorado today. That market is substantial enough for companies to successfully market PV systems to Colorado homeowners. These homeowners appear ready to learn more, inform themselves, and actively purchase GPV systems. The present situation is highly advantageous to Colorado's institutions--primarily its state government and its utility companies, and also its homebuilders--if they are ready to move forward on GPV technology.

Farhar, B.; Coburn, T.

2000-09-13T23:59:59.000Z

115

Design, fabrication, and certification of advanced modular PV power systems. Final technical progress report  

DOE Green Energy (OSTI)

Solar Electric Specialties Company (SES) has completed a two and a half year effort under the auspices of the US Department of Energy (DOE) PVMaT (Photovoltaic Manufacturing Technology) project. Under Phase 4A1 of the project for Product Driven System and Component Technology, the SES contract ``Design, Fabrication and Certification of Advanced Modular PV Power Systems`` had the goal to reduce installed system life cycle costs through development of certified (Underwriters Laboratories or other listing) and standardized prototype products for two of the product lines, MAPPS{trademark} (Modular Autonomous PV Power Supply) and Photogensets{trademark}. MAPPS are small DC systems consisting of Photovoltaic modules, batteries and a charge controller and producing up to about a thousand watt-hours per day. Photogensets are stand-alone AC systems incorporating a generator as backup for the PV in addition to a DC-AC inverter and battery charger. The program tasks for the two-year contract consisted of designing and fabricating prototypes of both a MAPPS and a Photogenset to meet agency listing requirements using modular concepts that would support development of families of products, submitting the prototypes for listing, and performing functionality testing at Sandia and NREL. Both prototypes were candidates for UL (Underwriters Laboratories) listing. The MAPPS was also a candidate for FM (Factory Mutual) approval for hazardous (incendiary gases) locations.

Lambarski, T.; Minyard, G. [Solar Electric Specialties Co., Willits, CA (United States)

1998-10-01T23:59:59.000Z

116

Solar PV Project Financing: Regulatory and Legislative Challenges for Third-Party PPA System Owners (Revised)  

NLE Websites -- All DOE Office Websites (Extended Search)

23 23 Revised February 2010 Solar PV Project Financing: Regulatory and Legislative Challenges for Third-Party PPA System Owners Katharine Kollins Duke University Bethany Speer and Karlynn Cory National Renewable Energy Laboratory National Renewable Energy Laboratory 1617 Cole Boulevard, Golden, Colorado 80401-3393 303-275-3000 * www.nrel.gov NREL is a national laboratory of the U.S. Department of Energy Office of Energy Efficiency and Renewable Energy Operated by the Alliance for Sustainable Energy, LLC Contract No. DE-AC36-08-GO28308 Technical Report NREL/TP-6A2-46723 Revised February 2010 Solar PV Project Financing: Regulatory and Legislative Challenges for Third-Party PPA System Owners Katharine Kollins Duke University Bethany Speer and Karlynn Cory

117

Measured Performance of California Buydown Program Residential PV Systems  

E-Print Network (OSTI)

, on average, 62 percent of nominal DC module size. For non-tracking systems, average annual energy production annual energy production per unit of nominal DC module size is approximately 1,100 kWh/year. Both Economic Research, Inc. Sanford Miller, California Energy Commission ABSTRACT More than two thousand small

118

Benchmarking Soft Costs for PV Systems in the United States (Presentation)  

SciTech Connect

This paper presents results from the first U.S. based data collection effort to quantify non-hardware, business process costs for PV systems at the residential and commercial scales, using a bottom-up approach. Annual expenditure and labor hour productivity data are analyzed to benchmark business process costs in the specific areas of: (1) customer acquisition; (2) permitting, inspection, and interconnection; (3) labor costs of third party financing; and (4) installation labor.

Ardani, K.

2012-06-01T23:59:59.000Z

119

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

E-Print Network (OSTI)

(PV) near Baker Application complete POD received. EIS required 5101 pending CACA 48742 9,600 MUC: Moderate 1,000 Mw Photovoltaic (PV) Silurian Valley Application complete POD received. EIS required 5101 POD received. EIS required 5101 pending Pending Solar Investments LLC (G-S) 01/18/2007 8,000 MUC

Pota, Himanshu Roy

120

Design, Fabrication, and Certification of Advanced Modular PV Power Systems Final Technical Progress Report  

DOE Green Energy (OSTI)

This report describes the overall accomplishments and benefits of Solar Electric Specialties Co. (SES) under this Photovoltaic Manufacturing Technology (PVMaT) subcontract. SES addressed design issues related to their modular autonomous PV power supply (MAPPS) and a mobile photogenset. MAPPS investigations included gel-cell batteries mounted horizontally; redesign of the SES power supply; modified battery enclosure for increased safety and reduced cost; programmable, interactive battery charge controllers; and UL and FM listings. The photogenset systems incorporate generators, battery storage, and PV panels for a mobile power supply. The unit includes automatic oil-change systems for the propane generators, collapsible array mounts for the PV enclosure, and internal stowage of the arrays. Standardizing the products resulted in product lines of MAPPS and Photogensets that can be produced more economically and with shorter lead times, while increasing product quality and reliability. Product assembly and quality control have also been improved and streamlined with the development of standardized assembly processes and QC testing procedures. SES offers the UL-listed MAPPS at about the same price as its previous non-standardized, unlisted products.

Lambarski, T.; Minyard, G. (Solar Electric Specialties Co., Willits, California)

1998-10-06T23:59:59.000Z

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


121

Economic Analysis of a Brackish Water Photovoltaic-Operated (BWRO-PV) Desalination System: Preprint  

DOE Green Energy (OSTI)

The photovoltaic (PV)-powered reverse-osmosis (RO) desalination system is considered one of the most promising technologies in producing fresh water from both brackish and sea water, especially for small systems located in remote areas. We analyze the economic viability of a small PV-operated RO system with a capacity of 5 m3/day used to desalinate brackish water of 4000 ppm total dissolve solids, which is proposed to be installed in a remote area of the Babylon governorate in the middle of Iraq; this area possesses excellent insolation throughout the year. Our analysis predicts very good economic and environmental benefits of using this system. The lowest cost of fresh water achieved from using this system is US $3.98/ m3, which is very reasonable compared with the water cost reported by small-sized desalination plants installed in rural areas in other parts of the world. Our analysis shows that using this small system will prevent the release annually of 8,170 kg of CO2, 20.2 kg of CO, 2.23 kg of CH, 1.52 kg of particulate matter, 16.41 kg of SO2, and 180 kg of NOx.

Al-Karaghouli, A.; Kazmerski, L. L.

2010-10-01T23:59:59.000Z

122

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

E-Print Network (OSTI)

Utility District (SMUD) Xcel Energy Connecticut Clean EnergyCA LADWP CA SMUD CO Xcel CT CCEF Small PV ProgramCA LADWP CA SMUD CO Xcel CT CCEF Small PV Program

Barbose, Galen; Wiser, Ryan; Bolinger, Mark

2006-01-01T23:59:59.000Z

123

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

E-Print Network (OSTI)

Clean Energy Group), Mike Taylor Designing PV IncentiveClean Energy States Alliance C ASE S TUDIES OF S TATE S UPPORT FOR R ENEWABLE E NERGY Designing PV Incentive

Barbose, Galen; Wiser, Ryan; Bolinger, Mark

2006-01-01T23:59:59.000Z

124

Pv =PYv  

Science Conference Proceedings (OSTI)

... Where pv is partial pressure of vapor, yv is mole fraction of vapor, and P ... Therefore, the organic compound should be stored in the liquid form in the ...

2011-10-04T23:59:59.000Z

125

Assessment of Rooftop and Building-Integrated PV Systems for Distributed Generation  

Science Conference Proceedings (OSTI)

Photovoltaics (PV) is the technology of solar cells -- solid-state devices that directly, silently, and cleanly convert solar energy into electricity. Although commercially available for many years, PV technology has only recently become sufficiently affordable and efficient to be a practical alternative or supplement to conventional grid power. PV devices are commonly mounted on a structure's rooftop, but are increasingly integrated into building components such as siding, glass, or roof tiles. This rep...

2003-03-04T23:59:59.000Z

126

Development of a model for physical and economical optimization of distributed PV systems.  

E-Print Network (OSTI)

?? There are a number of factors that influence both the physical and the economical performance of a photovoltaic solar energy (PV) installation. The aim (more)

Nsvall, David

2013-01-01T23:59:59.000Z

127

Modeling, analysis and neural MPPT control design of a PV-generator powered dc motor-pump system  

Science Conference Proceedings (OSTI)

This paper presents the optimization of a photovoltaic (PV) water pumping system using maximum power point tracking technique (MPPT). The optimization is suspended to reference optimal power. This optimization technique is developed to assure the optimum ... Keywords: artificial neural network controller, drive systems, maximum power point tracking, photovoltaic

Ahmed. M. Kassem

2011-12-01T23:59:59.000Z

128

System for generating power with top pressure of blast furnaces  

SciTech Connect

A system for generating power with the top pressure of a plurality of blast furnaces by leading a gas from the top of the furnaces into turbines, corresponding in number to the furnaces, to convert the pressure of the gas into rotational energy and generate power by a generator coupled to the turbines. The turbines connected to the furnaces by main gas channels individually are aligned with their rotor shafts connected together into a single shaft which is connected to the generator. Preferably each pair of the adjacent turbines are arranged with their intake ends positioned in the center of the arrangement so that the gas flows toward the exhaust ends at both sides, or with their intake ends positioned at both sides to cause the gas to flow toward the exhaust ends in the center. The single shaft connecting the pair of turbines together has no intermediate bearing between these turbines.

Kihara, H.; Mizota, T.; Ohmachi, M.; Takao, K.; Toki, K.; Tomita, Y.

1983-06-14T23:59:59.000Z

129

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

DOE Green Energy (OSTI)

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.

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

2012-02-01T23:59:59.000Z

130

Analysis of concentrating PV-T systems for the commercial/industrial sector. Volume II. PV-T state-of-the-art survey and site/application pair selection and analysis  

DOE Green Energy (OSTI)

As part of a project to develop feasibility assessments, design procedures, and reference designs for total energy systems that could use actively cooled concentrating photovoltaic collectors, a survey was conducted to provide an overview of available photovoltaic-thermal (PV-T) technology. General issues associated with the design and installation of a PV-T system are identified. Electrical and thermal efficiencies for the line-focus Fresnel, the linear parabolic trough, and the point-focus Fresnel collectors are specified as a function of operating temperature, ambient temperature, and insolation. For current PV-T technologies, the line-focus Fresnel collector proved to have the highest thermal and electrical efficiencies, lowest array cost, and lowest land area requirement. But a separate feasibility analysis involving 11 site/application pairs showed that for most applications, the cost of the photovoltaic portion of a PV-T system is not recovered through the displacement of an electrical load, and use of a thermal-only system to displace the thermal load would be a more economical alternative. PV-T systems are not feasible for applications that have a small thermal load, a large steam requirement, or a high load return temperature. SAND82-7157/3 identifies the technical issues involved in designing a photovoltaic-thermal system and provides guidance for resolving such issues. Detailed PV-T system designs for three selected applications and the results of a trade-off study for these applications are presented in SAND82-7157/4. A summary of the major results of this entire study and conclusions concerning PV-T systems and applications is presented in SAND82-7157/1.

Schwinkendorf, W.E.

1984-09-01T23:59:59.000Z

131

Evolutionary algorithms for the design of grid-connected PV-systems  

Science Conference Proceedings (OSTI)

The sale of electric energy generated by photovoltaic (PV) plants has attracted much attention in recent years. The installation of PV plants aims to obtain the maximum benefit of captured solar energy. The current methodologies for planning the design ... Keywords: Differential evolution, Evolutionary algorithms, Numerical optimization, Photovoltaic plants

Daniel Gmez-Lorente; Isaac Triguero; Consolacin Gil; A. Espn Estrella

2012-07-01T23:59:59.000Z

132

Development of A Fully Integrated PV System for Residential Applications: PVMaT5a Final Report, 18 December 2001  

DOE Green Energy (OSTI)

This report describes both the Utility Power Group (UPG), a wholly owned subsidiary of Kyocera Solar, Inc., and Xantrex Technology Inc., have designed, assembled, and tested a new photovoltaic (PV) power system for residential rooftops to meet the goal of a readily manufacturable product that will increase US domestic PV power system production and installed capacity, by reducing the total installed cost and increasing the reliability of residential rooftop mounted PV power systems. A new factory pre-fabricated PV array system was developed, and 80 have been installed on the residential rooftops using standard metal parts. The direct material and labor cost of the array installation has been reduced to $3.79 per square foot for a 2400W installation. A modular, maintenance free, battery-based Power Unit and Energy Storage Unit (power conditioning and control) have also been developed. The design, fabrication, and testing have been completed for two prototypes of this system. These products have been evaluated for their structural integrity, electrical performance, reliability, cost, and manufacturability. The direct material and labor cost of the Power Unit has been reduced to $0.34 per watt. The 13 kW-hr Energy Storage Unit (ESU) has been UL listed.

Oatman, J.; West, R.

2002-10-01T23:59:59.000Z

133

Advanced polymer PV system: PVMaT 4A1 annual report, September 1995--September 1996  

DOE Green Energy (OSTI)

Purpose of this subcontract was to produce lower module and systems costs through the innovative use of polymeric materials. The Innovative Mounting System (IMS) was developed and testing begun during the first year of this contract. IMS reduces the cost of installed PV systems by reducing labor and materials costs both in the factory and in field installation. It incorporates several advances in polymers, processing methods and product design. An advanced backskin material permits elimination of the conventional Al perimeter frame by protecting and sealing the edge and by direct bonding of multifunctional mounting bars. Electrical interconnection is easier and more reliable with a new junction box. Feasibility of a non-vacuum, high-throughput lamination method was also demonstrated, involving a novel transparent encapsulant with UV stabilization package that can be laminated in air and which should lead to longer field life than conventional designs. The first-year program culminated in the fielding of prototype products with the new encapsulant, backskin, junction box, frameless edge seal, and IMS. Feedback and marketing information from potential customers were solicited. Result promises a $0.50/watt manufacturing and system cost reductions as well as increased system lifetime. The second year will complete refinement and test of the encapsulant and backskin, complete the new lamination method, and refine product designs.

Hanoka, J.; Chleboski, R.; Farber, M.; Fava, J.; Kane, P.; Martz, J. [Evergreen Solar, Inc., Waltham, MA (United States)

1997-06-01T23:59:59.000Z

134

PV FAQs: What Is the Energy Payback for PV?  

DOE Green Energy (OSTI)

How long does a PV system have to operate to recover the energy-and the associated generation of pollution and CO2- that went into making the system? Energy paybacks for rooftop systems range from 1 to 4 years, depending on the system. Based on models and real data, the idea that PV cannot pay back its energy investment is simply a myth.

Not Available

2004-01-01T23:59:59.000Z

135

System Voltage Potential-Induced Degradation Mechanisms in PV Modules and Methods for Test: Preprint  

DOE Green Energy (OSTI)

Over the past decade, degradation and power loss have been observed in PV modules resulting from the stress exerted by system voltage bias. This is due in part to qualification tests and standards that do not adequately evaluate for the durability of modules to the long-term effects of high voltage bias experienced in fielded arrays. High voltage can lead to module degradation by multiple mechanisms. The extent of the voltage bias degradation is linked to the leakage current or coulombs passed from the silicon active layer through the encapsulant and glass to the grounded module frame, which can be experimentally determined; however, competing processes make the effect non-linear and history-dependent. Appropriate testing methods and stress levels are described that demonstrate module durability to system voltage potential-induced degradation (PID) mechanisms. This information, along with outdoor testing that is in progress, is used to estimate the acceleration factors needed to evaluate the durability of modules to system voltage stress. Na-rich precipitates are observed on the cell surface after stressing the module to induce PID in damp heat with negative bias applied to the active layer.

Hacke, P.; Terwilliger, K.; Smith, R.; Glick, S.; Pankow, J.; Kempe, M.; Kurtz, S.; Bennett, I.; Kloos, M.

2011-07-01T23:59:59.000Z

136

Grid-Competitive Residential and Commercial Fully Automated PV Systems Technology: Final technical Report, August 2011  

DOE Green Energy (OSTI)

Under DOE's Technology Pathway Partnership program, SunPower Corporation developed turn-key, high-efficiency residential and commercial systems that are cost effective. Key program objectives include a reduction in LCOE values to 9-12 cents/kWh and 13-18 cents/kWh respectively for the commercial and residential markets. Target LCOE values for the commercial ground, commercial roof, and residential markets are 10, 11, and 13 cents/kWh. For this effort, SunPower collaborated with a variety of suppliers and partners to complete the tasks below. Subcontractors included: Solaicx, SiGen, Ribbon Technology, Dow Corning, Xantrex, Tigo Energy, and Solar Bridge. SunPower's TPP addressed nearly the complete PV value chain: from ingot growth through system deployment. Throughout the award period of performance, SunPower has made progress toward achieving these reduced costs through the development of 20%+ efficient modules, increased cell efficiency through the understanding of loss mechanisms and improved manufacturing technologies, novel module development, automated design tools and techniques, and reduced system development and installation time. Based on an LCOE assessment using NREL's Solar Advisor Model, SunPower achieved the 2010 target range, as well as progress toward 2015 targets.

Brown, Katie E.; Cousins, Peter; Culligan, Matt; Jonathan Botkin; DeGraaff, David; Bunea, Gabriella; Rose, Douglas; Bourne, Ben; Koehler, Oliver

2011-08-26T23:59:59.000Z

137

Impact of High-Penetration PV on Distribution System Performance: Example Cases and Analysis Approach  

Science Conference Proceedings (OSTI)

High penetration of distributed photovoltaic (PV) generation in the electric grid is beginning to challenge distribution planners and engineers. This technical update discusses the factors that can have a significant impact on a distribution feeder's response to PV generation. The report considers both the circuit and the photovoltaic generation characteristics. The circuit types and characteristics span the expected range of power delivery and control elements. Photovoltaic characteristics include syste...

2011-12-30T23:59:59.000Z

138

PV and PV/hybrid products for buildings  

DOE Green Energy (OSTI)

Residential, commercial, and industrial buildings combined are the largest consumers of electricity in the United States and represent a significant opportunity for photovoltaic (PV) and PV/hybrid systems. The U.S. Department of Energy (DOE) is conducting a phased research and product development program, Building Opportunities in the United States for Photovoltaics (PV:BONUS), focused on this market sector. The purpose of the program is to develop technologies and foster business arrangements integrating cost-effective PV or hybrid products into buildings. The first phase was completed in 1996 and a second solicitation, PV:BONUS2, was initiated during 1997. These projects are resulting in a variety of building-integrated products. This paper summarizes the recent progress of the seven firms and collaborative teams currently participating in PV:BONUS2 and outlines planned work for the final phase of their work.

Thomas, H. P.; Hayter, S. J.; Martin, R. L., Pierce, L. K.

2000-05-15T23:59:59.000Z

139

Ota City : characterizing output variability from 553 homes with residential PV systems on a distribution feeder.  

DOE Green Energy (OSTI)

This report describes in-depth analysis of photovoltaic (PV) output variability in a high-penetration residential PV installation in the Pal Town neighborhood of Ota City, Japan. Pal Town is a unique test bed of high-penetration PV deployment. A total of 553 homes (approximately 80% of the neighborhood) have grid-connected PV totaling over 2 MW, and all are on a common distribution line. Power output at each house and irradiance at several locations were measured once per second in 2006 and 2007. Analysis of the Ota City data allowed for detailed characterization of distributed PV output variability and a better understanding of how variability scales spatially and temporally. For a highly variable test day, extreme power ramp rates (defined as the 99th percentile) were found to initially decrease with an increase in the number of houses at all timescales, but the reduction became negligible after a certain number of houses. Wavelet analysis resolved the variability reduction due to geographic diversity at various timescales, and the effect of geographic smoothing was found to be much more significant at shorter timescales.

Stein, Joshua S.; Miyamoto, Yusuke (Kandenko, Ibaraki, Japan); Nakashima, Eichi (Kandenko, Ibaraki, Japan); Lave, Matthew

2011-11-01T23:59:59.000Z

140

Plug and Play Components for Building-Integrated PV Systems: Phase I--Final Report, 20 February 2002--19 February 2003  

Science Conference Proceedings (OSTI)

This report describes the development by RWE Schott Solar, Inc., of innovative new products to facilitate the broad use of its PV systems in the current markets. RWE manufactures and sells the 300-watt ASE-300 PV module and also provides complete photovoltaic system engineering, design, and turnkey PV system installation services. RWE Schott Solar has many years of experience designing PV arrays and installing them on flat roofs and pitched roofs, and had plans to improve these designs. Specifically, wind-tunnel testing and analyses were needed for the new flat-roof PV array mounting system that avoids roof penetrations. In addition, to simplify large grid-tied PV systems for flat-roof applications, the company's line of wiring junction boxes needed to be updated with new components and higher-power multi-circuit configurations. For pitched-roof residential applications, testing was planned to determine the holding power of three different fasteners in a wide range of wood-sheathing types found in residential construction to help optimize fastening methods. A device for connecting PV to the grid at a meter socket was innovated and is also being developed.

Russell, M. C.

2004-07-01T23:59:59.000Z

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


141

205 kW Photovoltaic (PV) System Installed on the U.S. Department of Energy's Forrestal Building  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Project Description Project Description The Energy Policy Act of 2005 (EPAct 2005), the Energy Independence and Security Act of 2007 (EISA 2007), and Presidential Executive Order 13423 all contain requirements for Federal facilities to decrease energy consumption and increase the use of renewable energy by the year 2015. To provide leadership in meeting these requirements, DOE, in partnership with the General Services Administration (GSA), has installed a rooftop solar electric, or PV, system on the roof of DOE's headquarters in Washington, D.C. The 205 kilowatt (kW) installation is one of the largest of its kind in the Nation's capital. A display in the For- restal building will show the power output of the PV system during the day and the energy produced over

142

PV FAQs: What's New in Concentrating PV?  

DOE Green Energy (OSTI)

This publication, one in a series of PV FAQs, addresses concentrating PV: what it is, how it works, the challenges it faces, recent breakthroughs, and its future direction.

Not Available

2005-02-01T23:59:59.000Z

143

Improved PV system reliability results from surge evaluations at Sandia National Laboratories  

DOE Green Energy (OSTI)

Electrical surges on ac and dc inverter power wiring and diagnostic cables have the potential to shorten the lifetime of power electronics. These surges may be caused by either nearby lightning or capacitor switching transients. This paper contains a description of ongoing surge evaluations of PV power electronics and surge mitigation hardware at Sandia.

Russell H. Bonn; Sigifredo Gonzalez

2000-04-11T23:59:59.000Z

144

City of Sunset Valley- PV Rebate Program  

Energy.gov (U.S. Department of Energy (DOE))

The City of Sunset Valley offers rebates to local homeowners who install photovoltaic (PV) systems on their properties. The local rebate acts as an add-on to the PV rebates that are offered by...

145

Benchmarking Non-Hardware Balance of System (Soft) Costs for U.S. Photovoltaic Systems Using a Data-Driven Analysis from PV Installer Survey Results  

SciTech Connect

This report presents results from the first U.S. Department of Energy (DOE) sponsored, bottom-up data-collection and analysis of non-hardware balance-of-system costs--often referred to as 'business process' or 'soft' costs--for residential and commercial photovoltaic (PV) systems.

Ardani, K.; Barbose, G.; Margolis, R.; Wiser, R.; Feldman, D.; Ong, S.

2012-11-01T23:59:59.000Z

146

Techno-Economic Assessment of Solar PV/Thermal System for Power and Cooling Generation in Antalya, Turkey.  

E-Print Network (OSTI)

?? In this study a roof-top PVT/absorption chiller system is modeled for a hotel building in Antalya, Turkey to cover the cooling demand of the (more)

Kumbasar, Serdar

2013-01-01T23:59:59.000Z

147

Grid integrated distributed PV (GridPV).  

SciTech Connect

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.

Reno, Matthew J.; Coogan, Kyle [Georgia Institute of Technology, Atlanta, GA

2013-08-01T23:59:59.000Z

148

PV FAQs: What is the Energy Payback for PV?  

DOE Green Energy (OSTI)

How long does a PV system have to operate to recover the energy--and the associated generation of pollution and CO{sub 2}--that went into making the system? Energy paybacks for rooftop systems range from 1 to 4 years, depending on the system. Based on models and real data, the idea that PV cannot pay back its energy investment is simply a myth.

Not Available

2004-12-01T23:59:59.000Z

149

Passive cooling system for top entry liquid metal cooled nuclear reactors  

SciTech Connect

This patent describes a passive cooling system for liquid metal cooled, top entry loop nuclear fission reactors. It comprises: a liquid metal cooled nuclear reactor plant; a passive cooling system; and a secondary passive cooling system.

Boardman, C.E.; Hunsbedt, A.; Hui, M.M.

1992-10-27T23:59:59.000Z

150

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 EPBT corre- sponds to a high energy return on energy invest- ment

151

System and Battery Charge Control for PV-Powered AC Lighting Systems  

DOE Green Energy (OSTI)

This report reviews a number of issues specific to stand-alone AC lighting systems. A review of AC lighting technology is presented, which discusses the advantages and disadvantages of various lamps. The best lamps for small lighting systems are compact fluorescent. The best lamps for intermediate-size systems are high- or low-pressure sodium. Specifications for battery charging and load control are provided with the goal of achieving lamp lifetimes on the order of 16,000 to 24,000 hours and battery lifetimes of 4 to 5 years. A rough estimate of the potential domestic and global markets for stand-alone AC lighting systems is presented. DC current injection tests were performed on high-pressure sodium lamps and the test results are presented. Finally, a prototype system was designed and a prototype system controller (with battery charger and DC/AC inverter) was developed and built.

Kern, G.

1999-04-01T23:59:59.000Z

152

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

E-Print Network (OSTI)

University: Solar Cells Lecture 9: PV Systems Several types of operating modes · Centralized power plant or wanted Montana State University: Solar Cells Lecture 9: PV Systems 2 Residential Side Mounted Montana State University: Solar Cells Lecture 9: PV Systems 3 Could have future issues when the tree matures

153

The inverter is a major component of photovoltaic (PV) systems either autonomous or grid connected. It affects the  

E-Print Network (OSTI)

Solar Power ........................1 1.1 Global Installed PV Capacity ........................................................................................................................................18 2 Industry Trends, Photovoltaic and Concentrating Solar Power ...........................21 2.1 PV.3.4.5 Quality Assurance and Certification for Solar PV Installation.................46 2.3.5 References

Oregon, University of

154

Benchmarking Non-Hardware Balance of System (Soft) Costs for U.S. Photovoltaic Systems Using a Data-Driven Analysis from PV Installer Survey Results  

NLE Websites -- All DOE Office Websites (Extended Search)

Non-Hardware Non-Hardware Balance of System (Soft) Costs for U.S. Photovoltaic Systems Using a Data-Driven Analysis from PV Installer Survey Results November 2012 Benchmarking Non-Hardware Balance of System (Soft) Costs for U.S. Photovoltaic Systems Using a Data-Driven Analysis from PV Installer Survey Results NREL is a national laboratory of the U.S. Department of Energy, Office of Energy Efficiency and Renewable Energy, operated by the Alliance for Sustainable Energy, LLC. Contract No. DE-AC36-08GO28308 LBNL's work was supported by the U.S. Department of Energy SunShot program under Contract No. DE-AC02-05CH11231 Technical Report DOE/GO-10212-3834 * November 2012 National Renewable Energy Laboratory 15013 Denver West Parkway

155

Direct Use of Solar Photovoltaic (PV) Energy  

Science Conference Proceedings (OSTI)

PV-DC refers to the direct use of photovoltaic (PV) energy in an appliance or other equipment without a grid connection. Most (over 90) of the new deployments of PV solar panels connect to the ac electric grid and do not use dc energy directly. These grid-connected PV systems use an electronic inverter to convert the dc array output to ac power for interfacing with the grid. However, with double-digit growth in all types of PV applications, the direct use of solar for powering end-use loads needs to be m...

2010-12-31T23:59:59.000Z

156

Modeling High-Penetration PV for Distribution Analysis  

Science Conference Proceedings (OSTI)

The number of new solar PV interconnections to the distribution system has increased exponentially in recent years. The total installed capacity of PV worldwide increased from 20,000 to 40,000 during 2010. In some areas distribution planners are inundated with interconnection requests for both small-scale residential PV as well as larger, commercial, and centralized PV systems. Many utility companies that have not traditionally experienced a lot of distributed PV requests have within the past few years s...

2011-12-30T23:59:59.000Z

157

Energy 101: Solar PV | Department of Energy  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Solar PV Solar PV Energy 101: Solar PV Addthis Description 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. Duration 2:01 Topic Solar Energy Economy Credit Energy Department Video MR. : All right, we all know that the sun's energy creates heat and light. But it can also be converted to make electricity, and lots of it. One technology is called solar photovoltaics or PV for short. You've probably seen PV panels around for years, but recent advancements have greatly improved their efficiency and electrical output. Enough energy from the sun hits the earth every hour to power the planet for an

158

Definition: PV array | Open Energy Information  

Open Energy Info (EERE)

PV array PV array Jump to: navigation, search Dictionary.png PV array An interconnected system of PV modules that function as a single electricity-producing unit. In smaller systems, an array can consist of a single module.[1][2] View on Wikipedia Wikipedia Definition A Photovoltaic system (informally, PV system) is an arrangement of components designed to supply usable electric power for a variety of purposes, using the Sun (or, less commonly, other light sources) as the power source. PV systems may be built in various configurations: Off-grid without battery (Array-direct) Off-grid with battery storage for DC-only appliances Off-grid with battery storage for AC & DC appliances Grid-tie without battery Grid-tie with battery storage A photovoltaic array (also called a solar array) consists of multiple photovoltaic modules, casually

159

SERVO SYSTEM FOR MAGNETIC CONTROLLED CONSTANT INTENSITY FLAT TOP BEAM SPILL- OUT  

SciTech Connect

It is noted that a uniform flat-top beam spill-out cannot be obtained in the Cosmotron by manual control. A servo system is proposed which will control this spill-out by sensing the external beam intensity, and correcting the magnet voltage to keep this intensity constant. This servo must operate through the transfer function of the main ignitron system and the flat-top filter. An analysis of these special transfer functions is presented. (J.R.D.)

Cottingham, J.G.

1961-11-21T23:59:59.000Z

160

Development of a low cost integrated 15 kW A.C. solar tracking sub-array for grid connected PV power system applications  

SciTech Connect

Utility Power Group has achieved a significant reduction in the installed cost of grid-connected PV systems. The two part technical approach focused on (1) The utilization of a large area factory assembled PV panel, and (2) The integration and packaging of all sub-array power conversion and control functions within a single factory produced enclosure. Eight engineering prototype 15kW ac single axis solar tracking sub-arrays were designed, fabricated, and installed at the Sacramento Municipal Utility District{close_quote}s Hedge Substation site in 1996 and are being evaluated for performance and reliability. A number of design enhancements will be implemented in 1997 and demonstrated by the field deployment and operation of over twenty advanced sub-array PV power systems. {copyright} {ital 1997 American Institute of Physics.}

Stern, M.; West, R.; Fourer, G.; Whalen, W.; Van Loo, M.; Duran, G. [Utility Power Group, 9410 G De Soto Avenue, Chatsworth, California 91311 (United States)

1997-02-01T23:59:59.000Z

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


161

Development of a low-cost integrated 20-kW ac solar tracking sub- array for grid-connected PV power system applications. Phase 1, Annual technical report, 11 July 1995--31 July 1996  

DOE Green Energy (OSTI)

The overall goal of this effort is to reduce the installed cost of utility scale grid connected photovoltaic power systems. The focus of the effort is on ``BOS`` (Balance-Of-System) component manufacturing technology, which essentially involves all PV power system engineering, manufacturing, assembly and construction tasks from the receipt of a PV module to the deliver of grid connected electricity.

Stern, M.; West, R.; Fourer, G.; Whalen, W.; Van Loo, M.; Duran, G. [Utility Power Group, Chatsworth, CA (United States)

1997-06-01T23:59:59.000Z

162

Extending Performance and Evaluating Risks of PV Systems Failure Using a Fault Tree and Event Tree Approach: Analysis of the Possible Application  

DOE Green Energy (OSTI)

Performance and reliability of photovoltaic (PV) systems are important issues in the overall evaluation of a PV plant and its components. While performance is connected to the amount of energy produced by the PV installation in the working environmental conditions, reliability impacts the availability of the system to produce the expected amount of energy. In both cases, the evaluation should be done considering information and data coming from indoor as well as outdoor tests. In this paper a way of re-thinking performance, giving it a probabilistic connotation, and connecting the two concepts of performance and reliability is proposed. The paper follows a theoretical approach and discusses the way to obtaining such information, facing benefits and problems. The proposed probabilistic performance accounts for the probability of the system to function correctly, thus passing through the complementary evaluation of the probability of system malfunctions and consequences. Scenarios have to be identified where the system is not functioning properly or at all. They are expected to be combined in a probabilistic safety analysis (PSA) based approach, providing not only the required probability, but also being capable of giving a prioritization of the risks and the most dominant scenario associated to a specific situation. This approach can offer the possibility to highlight the most critical parts of a PV system, as well as providing support in design activities identifying weak connections.

Colli A.

2012-06-03T23:59:59.000Z

163

Blanc, I., Beloin-Saint-Pierre, D., Payet, J., Jacquin, P., Adra, N., Mayer, D., Espace-PV: key sensitive parameters for environmental impacts of grid-connected PV systems with LCA , In Proceedings of the 23rd  

E-Print Network (OSTI)

of Philadelphia uses an 85 kW rooftop PV installation. (Mercury Solar Solutions/ PIX 18064) #12;Solar Powering technologies fall into these main categories: photovoltaics (PV), concentrating solar power (CSP), solar water heating (SWH), and solar space heating and cooling.1 PV and CSP technologies produce electricity; SWH

Paris-Sud XI, Université de

164

IAEI NEWS January.February 2008 www.iaei.org ground-fault protection for pv systems  

E-Print Network (OSTI)

technologies which do not require transmission, such as photovoltaic (PV) generation in urban areas efficiency and clean distributed generating technologies, including PV in urban areas. But even optimistic, geothermal, solar and wind energy development. CREZ identification respected areas specified by RETI

Johnson, Eric E.

165

Analysis of concentrating PV-T systems for the commercial/industrial sector. Volume IV. Design analysis and trade-off study  

DOE Green Energy (OSTI)

Detailed reference designs developed for optimally sized photovoltaic-thermal (PV-T) systems are presented for three selected applications. The results of trade-off analyses to determine the effects of load variations, new components, changes in location, and variations in array cost are also discussed.

Schwinkendorf, W.E.

1984-09-01T23:59:59.000Z

166

Development of a fully-integrated PV system for residential applications: Phase I annual technical report: February 27, 1998 -- August 31, 1999  

SciTech Connect

This report describes Utility Power Group's (UPG's) technical progress for Phase 1 of a two-phase effort to focus on the design, assembly, and testing of a fully-integrated residential PV power system, including storage. In the PV Array Task, UPG significantly improved the conventional means and methods required to structurally interface PV modules to the roofs of single-family residential houses and to electrically interconnect these PV modules to a power conversion unit. UPG focused on the design and test of a PV array based on the highly efficient use of materials and labor. Design criteria included cost, structural integrity, electrical safety, reliability, conformance with applicable standards and building and seismic codes, and adaptability to a wide range of roof materials for both existing and retrofit roof applications. In the Power Unit Task, UPG designed and tested a high-efficiency, low-cost, high-reliability prototype power conversion unit that included all materials, components, equipment, and software required to perform all DC-AC/AC-DC power collection, conversion, and control functions between the output of the PV array and the interconnection to the electrical grid service of single-family residences. In the Energy Storage Unit Task, UPG designed and tested a low-cost, modular, self-contained, low-maintenance, all-weather, battery-based Energy Storage Unit designed to interface with the Power Unit to provide back-up electricity to supply critical household loads in the event of utility-grid failure. The Energy Storage Unit includes batteries and all structural, mechanical, and electrical equipment required to provide a source of stored DC energy for input of the Power Unit. UPG designed the storage unit as a ''plug and play'' option, where multiple units can be easily paralleled for additional energy storage capacity.

West, R.; Mackamul, K.; Duran, G.

2000-03-06T23:59:59.000Z

167

Development of a fully-integrated PV system for residential applications: Phase I annual technical report: February 27, 1998 -- August 31, 1999  

DOE Green Energy (OSTI)

This report describes Utility Power Group's (UPG's) technical progress for Phase 1 of a two-phase effort to focus on the design, assembly, and testing of a fully-integrated residential PV power system, including storage. In the PV Array Task, UPG significantly improved the conventional means and methods required to structurally interface PV modules to the roofs of single-family residential houses and to electrically interconnect these PV modules to a power conversion unit. UPG focused on the design and test of a PV array based on the highly efficient use of materials and labor. Design criteria included cost, structural integrity, electrical safety, reliability, conformance with applicable standards and building and seismic codes, and adaptability to a wide range of roof materials for both existing and retrofit roof applications. In the Power Unit Task, UPG designed and tested a high-efficiency, low-cost, high-reliability prototype power conversion unit that included all materials, components, equipment, and software required to perform all DC-AC/AC-DC power collection, conversion, and control functions between the output of the PV array and the interconnection to the electrical grid service of single-family residences. In the Energy Storage Unit Task, UPG designed and tested a low-cost, modular, self-contained, low-maintenance, all-weather, battery-based Energy Storage Unit designed to interface with the Power Unit to provide back-up electricity to supply critical household loads in the event of utility-grid failure. The Energy Storage Unit includes batteries and all structural, mechanical, and electrical equipment required to provide a source of stored DC energy for input of the Power Unit. UPG designed the storage unit as a ''plug and play'' option, where multiple units can be easily paralleled for additional energy storage capacity.

West, R.; Mackamul, K.; Duran, G.

2000-03-06T23:59:59.000Z

168

Development of a low-cost integrated 20-kW-AC solar tracking subarray for grid-connected PV power system applications. Final technical report  

DOE Green Energy (OSTI)

This report chronicles Utility Power Group's (UPG) successful two-year Photovoltaic Manufacturing Technology (PVMaT) Phase 4A1 work effort which began in July, 1995. During this period, UPG completed design, fabrication, testing and demonstration of a modular and fully integrated 15-kW-ac, solar tracking PV power system sub-array. The two key and innovative components which were developed are a Modular Panel which optimizes factory assembly of PV modules into a large area, field-deployable, structurally-integrated PV panel, and an Integrated Power Processing Unit which combines all dc and ac power collection, conversion and control functions within a single, field-deployable structurally-integrated electrical enclosure. These two key sub-array elements, when combined with a number of other electrical, mechanical, and structural components, create a low-cost and high-performance PV power system. This system, or sub-array, can be deployed in individual units, or paralleled with any number of other sub-arrays, to construct multi-megawatt P fields. 21 figs.

Stern, M.; Duran, G.; Fourer, G.; Mackamul, K.; Whalen, W.; Loo, M. van; West, R. [Utility Power Group, Chatsworth, CA (US)

1998-06-01T23:59:59.000Z

169

Second-generation PFBC systems research and development, Phase 2 topping combustor development  

SciTech Connect

The use of a Circulating Pressurized Fluidized Bed Combustor (CPFBC) as the primary combustion system for a combustion turbine requires transporting compressor air to the CPFBC and vitiated air/fuel gas back to the turbine. In addition, the topping combustion system must be located in the returning vitiated airflow path. The conventional fuel system and turbine center section require major changes for the applications. The combustion zone of the Westinghouse 501F turbine currently in production cannot contain the topping combustion system within the main structural pressure shell. Although the pressure casing can be enlarged both radially and longitudinally to accommodate the topping combustor system, the integrity and rigidity of the main shell would be significantly affected and, it could introduce rotor dynamics problems and preclude shipping the unit assembled. The currently favored configuration, which utilizes two topping combustor assemblies, one on each side of the unit, is shown in Figure 1. Half of the vitiated air from the CPFBC enters each of the internal plenum chambers in which the topping combustors are mounted. Fuel gas enters the assembly via the fuel nozzles at the head end of the combustor. Combustion occurs, and the products of combustion are ducted into the main shell for distribution to the first-stage turbine vanes. Compressor discharge air leaves the main shell, flowing around the annular duct into adjacent combustion shells. The air flows around the vitiated air plenums and leaves each combustion assembly via nozzles and is ducted to the CPFBC and carbonizer.

Domeracki, W.F.; Dowdy, T.E.; Bachovchin, D.; Foote, J.; Pillsbury, P.W.; Bouvier, B.U.; Muller, K.F.

1993-09-01T23:59:59.000Z

170

Outdoor PV Degradation Comparison  

DOE Green Energy (OSTI)

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.

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

2011-02-01T23:59:59.000Z

171

PV output smoothing with energy storage.  

SciTech Connect

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.

Ellis, Abraham; Schoenwald, David Alan

2012-03-01T23:59:59.000Z

172

Requirements for a Standard Test to Rate the Durability of PV Modules at System Voltage (Presentation)  

DOE Green Energy (OSTI)

Degradation modes in photovoltaic modules under system bias voltage stress are described and classified.

Hacke, P.; Terwilliger, K.; Glick, S.; Kempe, M.; Kurtz, S.; Bennett, I.; Kloos, M.

2011-02-01T23:59:59.000Z

173

Passive cooling system for top entry liquid metal cooled nuclear reactors  

DOE Patents (OSTI)

A liquid metal cooled nuclear fission reactor plant having a top entry loop joined satellite assembly with a passive auxiliary safety cooling system for removing residual heat resulting from fuel decay during shutdown, or heat produced during a mishap. This satellite type reactor plant is enhanced by a backup or secondary passive safety cooling system which augments the primary passive auxiliary cooling system when in operation, and replaces the primary cooling system when rendered inoperative.

Boardman, Charles E. (Saratoga, CA); Hunsbedt, Anstein (Los Gatos, CA); Hui, Marvin M. (Cupertino, CA)

1992-01-01T23:59:59.000Z

174

Accelerating PV Cost Effectiveness Through Systems Design, Engineering, and Quality Assurance: Phase I Annual Technical Report, 4 November 2004 - 3 November 2005  

DOE Green Energy (OSTI)

During Phase I of this PV Manufacturing R&D subcontract, PowerLight Corporation has made significant progress toward the reduction of installed costs for commercial-scale, rooftop PV systems. PowerLight has worked to reduce operating costs by improving long-term reliability and performance through the development of more sophisticated tools used in system design and monitoring. Additionally, PowerLight has implemented design improvements with the goal of reducing cost while maintaining and/or improving product quality. As part of this effort, PowerLight also modified manufacturing and shipping processes to accommodate these design changes, streamline material flow, reduce cost, and decrease waste streams. During Phase II of this project, PowerLight plans to continue this work with the goal of reducing system cost and improving system performance.

Botkin, J.

2006-07-01T23:59:59.000Z

175

Design, fabrication, and certification of advanced modular PV power systems. Annual technical progress report, 8 September 1995--7 September 1996  

DOE Green Energy (OSTI)

This report summarizes the activities performed during the first year of a nominal 2-year effort by Solar Electric Specialties Company (SES) under the Photovoltaic Manufacturing Technology (PVMaT) project of the National Photovoltaic Program. The goal of the SES contract is to reduce the installed system life-cycle costs by developing certified and standardized prototype products for two SES product lines--MAPPS{trademark} and Photogenset{trademark}. The MAPPS (modular autonomous PV power supply) systems are used for DC applications up to about a thousand watt-hours. The Photogensets are hybrid PV/generator systems for AC applications. SES expects these products to provide the basis for future commercial product lines of standardized certified, packaged systems.

Lambarski, T.; Minyard, G. [Solar Electric Specialties, Willits, CA (United States)

1997-03-01T23:59:59.000Z

176

NREL: Photovoltaics Research - PV News  

NLE Websites -- All DOE Office Websites (Extended Search)

PV News PV News The National Renewable Energy Laboratory Photovoltaic (PV) Research Program highlights latest research and news accomplishments from the laboratory on this page. Subscribe to the RSS feed RSS . Learn about RSS. November 8, 2013 New Solar Cell Is More Efficient, Less Costly Innovation by NREL and First Solar acquisition TetraSun wins a 2013 R&D 100 Award. November 6, 2013 NREL's Energy Systems Integration Facility Garners LEED® Platinum The Energy Systems Integration Facility (ESIF) on the campus of the U.S. Department of Energy's National Renewable Energy Laboratory (NREL) in Golden, Colo., has earned a LEED® Platinum designation for new construction from the U.S. Green Building Council (USGBC), a non-profit organization dedicated to sustainable building design and construction.

177

PV FAQs: What Is the Energy Payback for PV? Solar Energy Technologies...  

NLE Websites -- All DOE Office Websites (Extended Search)

energy is clean, abundant, reliable, and affordable Reaping the environmental benefits of solar energy requires spending energy to make the PV system. But as this graphic shows,...

178

The Impact of Retail Rate Structures on the Economics of Customer-Sited PV: A Study of Commercial Installations in California  

E-Print Network (OSTI)

the PV production profile, increases with the price ratio.off-peak prices. Customers who plan to install PV systems (

Wiser, Ryan; Mills, Andrew; Barbose, Galen; Golove, William

2008-01-01T23:59:59.000Z

179

Southern Company Photovoltaic Evaluation in Atlanta: Analysis of Field Data from Seven 4-kW PV Systems at Georgia Power Headquarters During 20102012  

Science Conference Proceedings (OSTI)

Seven photovoltaic (PV) power systems using different module technologies were installed on the rooftop of Georgia Powers headquarters in Atlanta. This report describes the output performance of these small-scale systems (about 4 kW each) relative to the available solar resource at the site. The main objective of this evaluation has been to assess performance characteristics of commercially available module technologies in a southeastern U.S. climate. To ensure a reliable comparison, all ...

2013-01-28T23:59:59.000Z

180

Field investigation of the relationship between battery size and PV system performance  

SciTech Connect

Four photovoltaic-powered lighting systems were installed in a National Forest Service campground in June of 1991. These systems have identical arrays, loads and charge controllers. The only difference was in the rated capacity of the battery bank for each system. The battery banks all use the same basic battery as a building block with the four systems utilizing either one battery, two batteries, three batteries or four batteries. The purpose of the experiment is to examine the effect of the various battery sizes on the ability of the system to charge the battery, energy available to the load, and battery lifetime. Results show an important trend in system performance concerning the impact of charge controllers on the relation between array size and battery size which results in an inability to achieve the days of battery storage originally designed for.

Stevens, J.; Kratochvil, J. [Sandia National Labs., Albuquerque, NM (United States); Harrington, S. [Ktech Corp., Albuquerque, NM (United States)

1993-07-01T23:59:59.000Z

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


181

Dependence of delivered energy on power conditioner electrical characteristics for utility-interactive PV systems  

SciTech Connect

In a utility-interactive photovoltaic system, the electrical characteristics of the dc-to-ac power-conditioning unit (inverter) influence the quantity of electrical energy delivered by the system, and therefore, affect the user worth of the system. An analysis of the effect of relevant inverter electrical characteristics on the quantity of system-delivered energy is undertaken using computer simulations of system behavior. Significant conclusions are that: (1) the annual system performance advantage of maximum-power-point voltage tracking is small compared with fixed-dc-input voltage operation; (2) low levels of inverter ac-power consumption during times of zero insolation can significantly degrade system performance; (3) the effect of small changes in the array-to-inverter size ratio on the user worth of the system is small; and (4) most of the system energy is delivered at power levels greater than one-half of the nominal array rating, and consequently, the inverter low-power efficiency is less important than is its full-power efficiency. A formula that approximates the inverter annual throughput efficiency with only four laboratory measurements on the inverter is presented.

Rasmussen, N.E.; Branz, H.M.

1981-01-01T23:59:59.000Z

182

Testing and Analysis for Lifetime Prediction of Crystalline Silicon PV Modules Undergoing Degradation by System Voltage Stress: Preprint  

DOE Green Energy (OSTI)

Acceleration factors are calculated for crystalline silicon PV modules under system voltage stress by comparing the module power during degradation outdoors to that in accelerated testing at three temperatures and 85% relative humidity. A lognormal analysis is applied to the accelerated lifetime test data considering failure at 80% of the initial module power. Activation energy of 0.73 eV for the rate of failure is determined, and the probability of module failure at an arbitrary temperature is predicted. To obtain statistical data for multiple modules over the course of degradation in-situ of the test chamber, dark I-V measurements are obtained and transformed using superposition, which is found well suited for rapid and quantitative evaluation of potential-induced degradation. It is determined that shunt resistance measurements alone do not represent the extent of power degradation. This is explained with a two-diode model analysis that shows an increasing second diode recombination current and ideality factor as the degradation in module power progresses. Failure modes of the modules stressed outdoors are examined and compared to those stressed in accelerated tests.

Hacke, P.; Smith, R.; Terwiliger, K.; Glick, S.; Jordan, D.; Johnston, S.; Kempe, M.; Kurtz, S.

2012-07-01T23:59:59.000Z

183

PV based solar insolation measuring device  

Science Conference Proceedings (OSTI)

The aim of the project is to develop mathematical model of the relationship between incoming solar insolation and PV module output current and temperature. Solar insolation need to be measured in order to optimize the design of solar electricity generating system (SEGS). PV module sizing

Balbir Singh Mahinder Singh; Nor Athirah Zainal

2012-01-01T23:59:59.000Z

184

Building Integrated PV System at Lahaina Civic Center Gymnasium Complex, Maui, Hawaii (MECO)  

Science Conference Proceedings (OSTI)

A 1.2kW building integrated photovoltaic system was designed by Maui Electric Company Ltd (MECO) and installed at the Lahaina Civic Center Gymnasium on the island of Maui, Hawaii. The BIPV structure serves as an extension to an existing covered walkway. The system is powered by the photovoltaic modules and the energy is stored in four gel cell type batteries. An entryway structure was constructed to house the system equipment, an LED display sign and lighted message board. A parking lot light is also pow...

2004-05-03T23:59:59.000Z

185

Analysis and Design of Smart PV Module  

E-Print Network (OSTI)

This thesis explores the design of a smart photovoltaic (PV) module- a PV module in which PV cells in close proximity are electrically grouped to form a pixel and are connected to dc-dc converter blocks which reside embedded in the back pane of the module. An auto-connected flyback converter topology processing less than full power is used to provide high gain and perform maximum power point tracking (MPPT). These dc-dc converters interface with cascaded H-bridge inverter modules operating on feed forward control for dc-link voltage ripple rejection. By means of feed forward control, a significant reduction in dc link capacitance is achieved by enduring higher dc link ripple voltages. The dc link electrolytic capacitors are replaced with film capacitors thus offering an improvement in the reliability of the smart PV module. The proposed configuration is capable of producing 120V/ 240V AC voltage. The PV module now becomes a smart AC module by virtue of embedded intelligence to selectively actuate 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 and temperature cause not only variations from PV module-to-PV module but from group-to-group of cells within the module itself. A detailed analysis along with simulation and experimental results confirm the feasibility of the proposed system.

Mazumdar, Poornima

2012-12-01T23:59:59.000Z

186

Interconnecting PV on New York City's Secondary Network  

E-Print Network (OSTI)

66 IAEI NEWS January.February 2007 www.iaei.org inspectors demand more answers Perspectives on PV A series of articles on photovoltaic (PV) power systems and the National Electrical Code Inspectors DemandPVsystemorinspectingsuchasystem, therearemanynewfeaturesthatareworthquestioning.Herearesome of the questions that inspectors have raised via e-mail, telephone calls, andduringmyPV

187

High Resolution PV Power Modeling for Distribution Circuit Analysis  

DOE Green Energy (OSTI)

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.

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

2013-09-01T23:59:59.000Z

188

Optimal Inverter VAR Control in Distribution Systems with High PV Penetration  

E-Print Network (OSTI)

The intent of the study detailed in this paper is to demonstrate the benefits of inverter var control on a fast timescale to mitigate rapid and large voltage fluctuations due to the high penetration of photovoltaic generation and the resulting reverse power flow. Our approach is to formulate the volt/var control as a radial optimal power flow (OPF) problem to minimize line losses and energy consumption, subject to constraints on voltage magnitudes. An efficient solution to the radial OPF problem is presented and used to study the structure of optimal inverter var injection and the net benefits, taking into account the additional cost of inverter losses when operating at non-unity power factor. This paper will illustrate how, depending on the circuit topology and its loading condition, the inverter's optimal reactive power injection is not necessarily monotone with respect to their real power output. The results are demonstrated on a distribution feeder on the Southern California Edison system that has a very ...

Farivar, Masoud; Clarke, Christopher; Low, Steven

2011-01-01T23:59:59.000Z

189

A heterogeneous parallel system running open mpi on a broadband network of embedded set-top devices  

Science Conference Proceedings (OSTI)

We present a heterogeneous parallel computing system that combines a traditional computer cluster with a broadband network of embedded set-top box (STB) devices. As multiple service operators (MSO) manage millions of these devices across wide geographic ... Keywords: distributed embedded systems, mpi, multiple sequence alignment, multiple service operators, set-top box

Richard Neill; Alexander Shabarshin; Luca P. Carloni

2010-05-01T23:59:59.000Z

190

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

E-Print Network (OSTI)

Connected PV Systems Rated Output Product Reliability SafetyPV system components and installations meet minimum industry standards related to safety, reliability, and

Barbose, Galen; Wiser, Ryan; Bolinger, Mark

2008-01-01T23:59:59.000Z

191

Energy and economic assessment of desiccant cooling systems coupled with single glazed air and hybrid PV/thermal solar collectors for applications in hot and humid climate  

SciTech Connect

This paper presents a detailed analysis of the energy and economic performance of desiccant cooling systems (DEC) equipped with both single glazed standard air and hybrid photovoltaic/thermal (PV/t) collectors for applications in hot and humid climates. The use of 'solar cogeneration' by means of PV/t hybrid collectors enables the simultaneous production of electricity and heat, which can be directly used by desiccant air handling units, thereby making it possible to achieve very energy savings. The present work shows the results of detailed simulations conducted for a set of desiccant cooling systems operating without any heat storage. System performance was investigated through hourly simulations for different systems and load combinations. Three configurations of DEC systems were considered: standard DEC, DEC with an integrated heat pump and DEC with an enthalpy wheel. Two kinds of building occupations were considered: office and lecture room. Moreover, three configurations of solar-assisted air handling units (AHU) equipped with desiccant wheels were considered and compared with standard AHUs, focusing on achievable primary energy savings. The relationship between the solar collector's area and the specific primary energy consumption for different system configurations and building occupation patterns is described. For both occupation patterns, sensitivity analysis on system performance was performed for different solar collector areas. Also, this work presents an economic assessment of the systems. The cost of conserved energy and the payback time were calculated, with and without public incentives for solar cooling systems. It is worth noting that the use of photovoltaics, and thus the exploitation of related available incentives in many European countries, could positively influence the spread of solar air cooling technologies (SAC). An outcome of this work is that SAC systems equipped with PV/t collectors are shown to have better performance in terms of primary energy saving than conventional systems fed by vapour compression chillers and coupled with PV cells. All SAC systems present good figures for primary energy consumption. The best performances are seen in systems with integrated heat pumps and small solar collector areas. The economics of these SAC systems at current equipment costs and energy prices are acceptable. They become more interesting in the case of public incentives of up to 30% of the investment cost (Simple Payback Time from 5 to 10 years) and doubled energy prices. (author)

Beccali, Marco; Finocchiaro, Pietro; Nocke, Bettina [Universita degli Studi di Palermo, Palermo (Italy)

2009-10-15T23:59:59.000Z

192

Pioneer Valley Photovoltaics Cooperative aka PV Squared | Open Energy  

Open Energy Info (EERE)

Photovoltaics Cooperative aka PV Squared Photovoltaics Cooperative aka PV Squared Jump to: navigation, search Name Pioneer Valley Photovoltaics Cooperative (aka PV Squared) Place New Britain, Connecticut Zip 6051 Sector Solar Product Solar PV system installer. References Pioneer Valley Photovoltaics Cooperative (aka PV Squared)[1] LinkedIn Connections CrunchBase Profile No CrunchBase profile. Create one now! This article is a stub. You can help OpenEI by expanding it. Pioneer Valley Photovoltaics Cooperative (aka PV Squared) is a company located in New Britain, Connecticut . References ↑ "Pioneer Valley Photovoltaics Cooperative (aka PV Squared)" Retrieved from "http://en.openei.org/w/index.php?title=Pioneer_Valley_Photovoltaics_Cooperative_aka_PV_Squared&oldid=349764"

193

Sunshine PV | Open Energy Information  

Open Energy Info (EERE)

Sunshine PV Jump to: navigation, search Name Sunshine PV Place Taiwan Sector Solar Product Taiwan-based subsidiary of Solartech Energy and thin-film PV module supplier. References...

194

Modeling and Simulation of Solar PV Arrays under Changing Illumination Conditions  

E-Print Network (OSTI)

from the solar cell. PV has widespread use in niche markets such as consumer electronics, remote area onto a small number of highly efficient solar cells. PV systems mounted on house roofs can be used. Hybrid PV/thermal micro concentrator systems on building roofs are being developed to provide solar PV

Lehman, Brad

195

Austin Energy- Commercial PV Incentive Program  

Energy.gov (U.S. Department of Energy (DOE))

Austin Energy, a municipal utility, offers a production incentive to its commercial and multi-family residential customers for electricity generated by qualifying photovoltaic (PV) systems of up to...

196

Austin Energy- Residential Solar PV Rebate Program  

Energy.gov (U.S. Department of Energy (DOE))

Austin Energy's Solar Rebate Program offers a $1.50 per watt incentive to eligible residential who install photovoltaic (PV) systems on their homes. Rebates are limited to $15,000 per home...

197

Pulse radiolysis of liquid water using picosecond electron pulses produced by a table-top terawatt laser system  

E-Print Network (OSTI)

Pulse radiolysis of liquid water using picosecond electron pulses produced by a table-top terawatt into a supersonic helium gas jet are used to ionize liquid water. The decay of the hydrated electrons produced of liquid water using electron pulses produced by a table-top terawatt laser system (T3 ). The results

Umstadter, Donald

198

Updating Technical Screens for PV Interconnection: Preprint  

DOE Green Energy (OSTI)

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.

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

2012-08-01T23:59:59.000Z

199

Solar PV Market Update: Volume 1 - Spring  

Science Conference Proceedings (OSTI)

The Electric Power Research Institute (EPRI) Solar PV Market Update provides a snapshot of photovoltaic (PV) market information, along with brief EPRI analyses, to inform EPRI members about economic-, policy-, and technology-related developments in the segment. Delivered on a quarterly basis, the document synthesizes data reporting gleaned from a variety of primary and secondary sources, highlighting specific industry issuesincluding market outlooks, equipment cost and pricing trends, system design and e...

2012-05-21T23:59:59.000Z

200

System dynamic model and charging control of lead-acid battery for stand-alone solar PV system  

SciTech Connect

The lead-acid battery which is widely used in stand-alone solar system is easily damaged by a poor charging control which causes overcharging. The battery charging control is thus usually designed to stop charging after the overcharge point. This will reduce the storage energy capacity and reduce the service time in electricity supply. The design of charging control system however requires a good understanding of the system dynamic behaviour of the battery first. In the present study, a first-order system dynamics model of lead-acid battery at different operating points near the overcharge voltage was derived experimentally, from which a charging control system based on PI algorithm was developed using PWM charging technique. The feedback control system for battery charging after the overcharge point (14 V) was designed to compromise between the set-point response and the disturbance rejection. The experimental results show that the control system can suppress the battery voltage overshoot within 0.1 V when the solar irradiation is suddenly changed from 337 to 843 W/m{sup 2}. A long-term outdoor test for a solar LED lighting system shows that the battery voltage never exceeded 14.1 V for the set point 14 V and the control system can prevent the battery from overcharging. The test result also indicates that the control system is able to increase the charged energy by 78%, as compared to the case that the charging stops after the overcharge point (14 V). (author)

Huang, B.J.; Hsu, P.C.; Wu, M.S.; Ho, P.Y. [New Energy Center, Department of Mechanical Engineering, National Taiwan University, Taipei (China)

2010-05-15T23:59:59.000Z

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


201

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

Open Energy Info (EERE)

is in addition to the existing standards for residential and commercial PV systems. Local solar installers have reported that being able to refer permitting officials to these MAG...

202

Novel Control and Harmonics Impact of PV Solar Farms.  

E-Print Network (OSTI)

??This thesis presents a novel application of Photovoltaic (PV) solar system inverter, both during night and day, as a dynamic reactive power compensator STATCOM. This (more)

Das, Byomakesh

2012-01-01T23:59:59.000Z

203

CEFIA - Residential Solar PV Rebate Program (Connecticut) | Open...  

Open Energy Info (EERE)

project. Factors considered in calculating the rebate include: PV panel selection, inverter efficiency, system orientation and tilt, and shading on the site. Participation by...

204

CCEF - Affordable Housing Initiative Solar PV Rebate Program...  

Open Energy Info (EERE)

project. Factors considered in calculating the rebate include: PV panel selection, inverter efficiency, system orientation and tilt, and shading on the site. For multi-family...

205

Building America Top Innovations Hall of Fame Profile … Basement Insulation Systems  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Efficient Efficient and durable construction practices are critical for basements because basements can account for 10% to 30% of a home's total heat loss and provide significant risk of moisture problems due to extensive cold surfaces at the walls and slab. BUILDING AMERICA TOP INNOVATIONS HALL OF FAME PROFILE INNOVATIONS CATEGORY: 1. Advanced Technologies and Practices 1.1 Building Science Solutions Basement Insulation Systems Building America research has provided essential guidance for one of the most challenging construction assemblies in cold-climate high-performance homes. Basements can easily develop mold, rot, and odor problems if not designed properly. Building America researchers have investigated basement insulation systems that keep the space dry, healthy, and odor-free. These systems effectively address the

206

Definition: PV module | Open Energy Information  

Open Energy Info (EERE)

Definition Definition Edit with form History Facebook icon Twitter icon » Definition: PV module Jump to: navigation, search Dictionary.png PV module A unit comprised of several PV cells, and the principal unit of a PV array; it is intended to generate direct current power under un-concentrated sunlight.[1][2] View on Wikipedia Wikipedia Definition A solar panel is a set of solar photovoltaic modules electrically connected and mounted on a supporting structure. A photovoltaic module is a packaged, connected assembly of photovoltaic cells. The solar module can be used as a component of a larger photovoltaic system to generate and supply electricity in commercial and residential applications. Each module is rated by its DC output power under standard test conditions (STC), and

207

Top Produktion  

NLE Websites -- All DOE Office Websites (Extended Search)

Teilchenzerfall und -vernichtung Top Produktion Ein Quark (in einem Proton) und ein Antiquark (in einem Antiproton), welche mit grosser Energie zusammenstossen, knnen in ein top...

208

PV performance modeling workshop summary report.  

DOE Green Energy (OSTI)

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.

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

2011-05-01T23:59:59.000Z

209

PV array simulator development and validation.  

Science Conference Proceedings (OSTI)

The ability to harvest all available energy from a photovoltaic (PV) array is essential if new system developments are to meet levelized cost of energy targets and achieve grid parity with conventional centralized utility power. Therefore, exercising maximum power point tracking (MPPT) algorithms, dynamic irradiance condition operation and startup and shutdown routines and evaluating inverter performance with various PV module fill-factor characteristics must be performed with a repeatable, reliable PV source. Sandia National Laboratories is collaborating with Ametek Programmable Power to develop and demonstrate a multi-port TerraSAS PV array simulator. The simulator will replicate challenging PV module profiles, enabling the evaluation of inverter performance through analyses of the parameters listed above. Energy harvest algorithms have traditionally implemented methods that successfully utilize available energy. However, the quantification of energy capture has always been difficult to conduct, specifically when characterizing the inverter performance under non-reproducible dynamic irradiance conditions. Theoretical models of the MPPT algorithms can simulate capture effectiveness, but full validation requires a DC source with representative field effects. The DC source being developed by Ametek and validated by Sandia is a fully integrated system that can simulate an IV curve from the Solar Advisor Model (SAM) module data base. The PV simulator allows the user to change the fill factor by programming the maximum power point voltage and current parameters and the open circuit voltage and short circuit current. The integrated PV simulator can incorporate captured irradiance and module temperature data files for playback, and scripted profiles can be generated to validate new emerging hardware embedded with existing and evolving MPPT algorithms. Since the simulator has multiple independent outputs, it also has the flexibility to evaluate an inverter with multiple MPPT DC inputs. The flexibility of the PV simulator enables the validation of the inverter's capability to handle vastly different array configurations.

Kuszmaul, Scott S.; Gonzalez, Sigifredo; Lucca, Roberto (Ametek Programmable Power, San Diego, CA); Deuel, Don (Ametek Programmable Power, San Diego, CA)

2010-06-01T23:59:59.000Z

210

PV | OpenEI  

Open Energy Info (EERE)

PV PV Dataset Summary Description This dataset is from the report Operational water consumption and withdrawal factors for electricity generating technologies: a review of existing literature (J. Macknick, R. Newmark, G. Heath and K.C. Hallett) and provides estimates of operational water withdrawal and water consumption factors for electricity generating technologies in the United States. Estimates of water factors were collected from published primary literature and were not modified except for unit conversions. Source National Renewable Energy Laboratory Date Released August 28th, 2012 (2 years ago) Date Updated Unknown Keywords coal consumption csp factors geothermal PV renewable energy technologies Water wind withdrawal Data application/vnd.openxmlformats-officedocument.spreadsheetml.sheet icon Operational water consumption and withdrawal factors for electricity generating technologies (xlsx, 77.7 KiB)

211

PV batteries and charge controllers: Technical issues, costs, and market trends  

SciTech Connect

A survey of US system integrators, charge controller manufacturers, and battery manufacturers was conducted in 1996 to determine market and application trends. This survey was sponsored by the USDOE. Results from 21 system integrators show a 1995 PV battery sales of $4.76 million. Using the survey results, a top down market analysis was conducted with a total predicted US battery market of $34.7 million and a world wide market of US $302 million. The survey also indicated that 71% (of dollars) were spent on VRLA and 29% on flooded lead-acid batteries. Eighty percent of charge controllers were ON-OFF, vs. PWM or constant voltage.

Hammond, R.L.; Turpin, J.F. [Arizona State Univ. East, Mesa, AZ (United States); Corey, G.P.; Hund, T.D. [Sandia National Labs., Albuquerque, NM (United States); Harrington, S.R. [Harrington (S.R.), Albuquerque, NM (United States)

1997-11-01T23:59:59.000Z

212

Gulf Power - Solar PV Program | Department of Energy  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Gulf Power - Solar PV Program Gulf Power - Solar PV Program Gulf Power - Solar PV Program < Back Eligibility Commercial Residential Savings Category Solar Buying & Making Electricity Maximum Rebate $10,000/installation Program Info State Florida Program Type Utility Rebate Program Rebate Amount $2/watt Provider Energy Efficiency '''''All funding has currently been reserved and new applications are no longer being accepted. See Gulf Power's [http://www.gulfpower.com/renewable/solarElectricity.asp Solar PV] web site for more information.''''' Gulf Power offers a Solar PV rebate to residential and commercial customers. Gulf Power will provide a $2/watt rebate with a $10,000 per system maximum. In addition, Gulf Power has a Solar for Schools program, providing capital funding for PV systems. Gulf Power has worked with the Florida Solar Energy

213

Open PV Project: Unlocking PV Installation Data (Brochure)  

SciTech Connect

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.

Not Available

2012-04-01T23:59:59.000Z

214

Building America Top Innovations Hall of Fame Profile … Advanced Framing Systems and Packages  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

studies involving studies involving thousands of homes have documented significant material, labor, and energy savings when production builders implement advanced framing techniques. Advanced framing can reduce the number of studs in the walls by up to one-third, reducing the cost of materials. and reducing the cost of labor in terms of the time it takes to handle, cut, install, drill, and attach to studs. Actual savings have exceeded $1,000 per home. Studies show the resulting improvement in thermal performance can yield 13% energy savings. BUILDING AMERICA TOP INNOVATIONS HALL OF FAME PROFILE INNOVATIONS CATEGORY: 1. Advanced Technologies and Practices 1.1 Building Science Solutions Advanced Framing Systems and Packages Building America has developed best practices for advanced framing

215

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

E-Print Network (OSTI)

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 ...

Moawwad, Ahmed

216

Assessing the impacts of feed in tariffs and metering configuration (gross or net), on the payback period for an average solar PV system in metropolitan Melbourne.  

E-Print Network (OSTI)

??With an increasing customer focus on renewable energy and the perceived benefits from widespread solar photovoltaic (PV) generation there has been a rapid increase in (more)

Bailey, Darren

2009-01-01T23:59:59.000Z

217

DOE High Performance Concentrator PV Project  

DOE Green Energy (OSTI)

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%.

McConnell, R.; Symko-Davies, M.

2005-08-01T23:59:59.000Z

218

Top Production  

NLE Websites -- All DOE Office Websites (Extended Search)

Top Principal ESTOY PERDIDO!!! Top Principal ESTOY PERDIDO!!! Protón + Antiprotón --> Top + Antitop Un quark (perteneciente a un protón) y un antiquark (perteneciente a un antiprotón), colisionando a alta energía, pueden aniquilarse para producir un quark top y un antiquark top, los cuales decaen luego hacia otras partículas. Cuadro 1: un quark de un protón y un antiquark de un antiprotón se precipitan uno al encuentro del otro. Cuadro 2: los quarks colisionan y se aniquilan.... Cuadro 3: ...en gluones virtuales. Cuadro 4: de la nube de gluones emergen un quark top y un antiquark top. Cuadro 5: los quarks comienzan separarse, estirando el campo de fuerza de color (campo de gluones) entre ambos. Cuadro 6: antes de que el quark top y el antiquark top se hayan separado mucho, ambos decaen hacia un quark bottom y un antiquark bottom

219

Progress in photovoltaic system and component improvements  

DOE Green Energy (OSTI)

The Photovoltaic Manufacturing Technology (PVMaT) project is a partnership between the US government (through the US Department of Energy [DOE]) and the PV industry. Part of its purpose is to conduct manufacturing technology research and development to address the issues and opportunities identified by industry to advance photovoltaic (PV) systems and components. The project was initiated in 1990 and has been conducted in several phases to support the evolution of PV industrial manufacturing technology. Early phases of the project stressed PV module manufacturing. Starting with Phase 4A and continuing in Phase 5A, the goals were broadened to include improvement of component efficiency, energy storage and manufacturing and system or component integration to bring together all elements for a PV product. This paper summarizes PV manufacturers` accomplishments in components, system integration, and alternative manufacturing methods. Their approaches have resulted in improved hardware and PV system performance, better system compatibility, and new system capabilities. Results include new products such as Underwriters Laboratories (UL)-listed AC PV modules, modular inverters, and advanced inverter designs that use readily available and standard components. Work planned in Phase 5A1 includes integrated residential and commercial roof-top systems, PV systems with energy storage, and 300-Wac to 4-kWac inverters.

Thomas, H.P.; Kroposki, B.; McNutt, P.; Witt, C.E. [National Renewable Energy Lab., Golden, CO (United States); Bower, W.; Bonn, R.; Hund, T.D. [Sandia National Labs., Albuquerque, NM (United States)

1998-07-01T23:59:59.000Z

220

Progress in photovoltaic system and component improvements  

SciTech Connect

The Photovoltaic Manufacturing Technology (PVMaT) project is a partnership between the US government (through the US Department of Energy [DOE]) and the PV industry. Part of its purpose is to conduct manufacturing technology research and development to address the issues and opportunities identified by industry to advance photovoltaic (PV) systems and components. The project was initiated in 1990 and has been conducted in several phases to support the evolution of PV industrial manufacturing technology. Early phases of the project stressed PV module manufacturing. Starting with Phase 4A and continuing in Phase 5A, the goals were broadened to include improvement of component efficiency, energy storage and manufacturing and system or component integration to bring together all elements for a PV product. This paper summarizes PV manufacturers` accomplishments in components, system integration, and alternative manufacturing methods. Their approaches have resulted in improved hardware and PV system performance, better system compatibility, and new system capabilities. Results include new products such as Underwriters Laboratories (UL)-listed AC PV modules, modular inverters, and advanced inverter designs that use readily available and standard components. Work planned in Phase 5A1 includes integrated residential and commercial roof-top systems, PV systems with energy storage, and 300-Wac to 4-kWac inverters.

Thomas, H.P.; Kroposki, B.; McNutt, P.; Witt, C.E. [National Renewable Energy Lab., Golden, CO (United States); Bower, W.; Bonn, R.; Hund, T.D. [Sandia National Labs., Albuquerque, NM (United States)

1998-08-01T23:59:59.000Z

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


221

Exploration of the MODIS Cloud-Top Property Products for the Investigation of Equatorial Wave Systems  

Science Conference Proceedings (OSTI)

The Moderate Resolution Imaging Spectroradiometer (MODIS) observations provide an unprecedented opportunity for studying cloud macrophysical (cloud-top pressure, temperature, height, and phase), microphysical (effective particle size), and ...

Yue Li; Gerald R. North; Ping Yang; Bryan A. Baum

2010-09-01T23:59:59.000Z

222

An overview of NREL's PV solar radiation research task activities and results  

SciTech Connect

This paper presents an overview of the recent activities and results of the Photovoltaics (PV) Solar Radiation Research task of NREL's PV Advanced Research and Development (PVAR D) Project. Topics covered include the Atmospheric Optical Calibration System (AOCS) and instrumentation systems for monitoring and characterizing the solar irradiance available to PV systems. Both types of instrumentation systems and activities are required for a thorough understanding of PV device performance and design.

Hulstrom, R.L.; Cannon, T.W.; Stoffel, T.; Riordan, C.J. (National Renewable Energy Laboratory (NREL), 1617 Cole Blvd., Golden, Colorado 80401 (United States))

1992-12-01T23:59:59.000Z

223

Building Energy Software Tools Directory: PV*SOL  

NLE Websites -- All DOE Office Websites (Extended Search)

PV*SOL PV*SOL PV*SOL logo. PV*SOL Pro is a program for the design and simulation of grid-connected and off-grid photovoltaic systems. You can create your system using a wide range of modules (including thin-film and crystalline) and the program determines the size of the system with the roof layout tool. After testing all the relevant physical parameters, the program automatically selects the inverter and PV array configuration. This dynamic simulation program was developed for engineers, designers, installers, roofing specialists, and electrical contractors or building technicians. Screen Shots Keywords photovoltaic systems simulation, planning and design software, grid-connected systems, stand-alone systems Validation/Testing N/A Expertise Required No special expertise or training needed.

224

The Solarize Guidebook: A community guide to collective purchasing of residential PV systems (Book), SunShot, U.S. Department of Energy (DOE)  

NLE Websites -- All DOE Office Websites (Extended Search)

SOLARIZE GUIDEBOOK: SOLARIZE GUIDEBOOK: A community guide to collective purchasing of residential PV systems 1 ACKNOWLEDGEMENTS This guide is an updated version of the original The Solarize Guidebook, published in February 2011 (see www.nrel.gov/docs/fy11osti/50440.pdf), which was developed for the National Renewable Energy Laboratory and the City of Portland. The original Solarize campaigns were initiated and replicated by Portland's Neighborhood Coalition network with help from the Energy Trust of Oregon, City of Portland, and Solar Oregon. AUTHORS Linda Irvine, Alexandra Sawyer and Jennifer Grove, Northwest Sustainable Energy for Economic Development (Northwest SEED). Northwest SEED is solely responsible for errors and omissions. CONTRIBUTORS Lee Rahr, Portland Bureau of Planning and Sustainability

225

Concentrator Photovoltaic Systems  

Energy.gov (U.S. Department of Energy (DOE))

Concentrator photovoltaic (PV) systems use less solar cell material than other PV systems. PV cells are the most expensive components of a PV system, on a per-area basis. A concentrator makes use...

226

Top Quark  

NLE Websites -- All DOE Office Websites (Extended Search)

quark TOP Volver Principal ESTOY PERDIDO El 2 de marzo de 1995, el Fermilab anunci el descubrimiento del quark top, el ltimo de los seis quarks, cuya existencia haba sido...

227

Top Event  

NLE Websites -- All DOE Office Websites (Extended Search)

evento Top Volver Principal ESTOY PERDIDO El quark top --> un quark bottom y un bosn W; luego el W+ --> e+ ms un neutrino, y el quark bottom (que emerge como un antimesn B...

228

Three-phase power conversion system for utility-interconnected PV applications. Phase 1 technical progress report, 1 October 1995--17 April 1997  

DOE Green Energy (OSTI)

This report describes work performed by Omnion Power Corporation under Phase 1 of a two-phase subcontract. During this phase, Omnion researchers: designed an advanced product specification to guide prototype design and development; analyzed field failure data with Omnion`s hard-switched insulated-Gate Bipolar Transistor technology hardware to better understand where design improvements were needed; presented and reviewed product specifications with key customers/users; drafted a working product specification to serve as a baseline in developing the new power conversion system; developed the core-resonant converter technology in conjunction with Soft Switching Technologies Corp.; designed a 100-kW prototype power conversion system; designed a prototype system package; initiated interaction with vendors to optimize component selection and specifications; initiated the preparation of design documentation; built the prototype core-resonant converter and initiated preliminary testing; and initiated the assembly of a 1-kW prototype power conversion system. This work has demonstrated the potential of the soft-switching resonant DC link (RDCL) inverter and its application to a three-phase utility-interconnected PV power conversion system. The RDCL inverter has demonstrated its advantage over hard-switching pulse-width modulated inverters in terms of efficiency and audible noise. With proper package design and manufacturing process design and implementation, the RDCL power conversion system has the potential to be low-cost and reliable with superior performance.

Porter, D.G.; Meyer, H.; Leang, W. [Omnion Power Engineering Corp., East Troy, WI (United States)

1998-02-01T23:59:59.000Z

229

Ambiental PV | Open Energy Information  

Open Energy Info (EERE)

Ambiental PV Ambiental PV Jump to: navigation, search Name Ambiental PV Place Bahia, Brazil Zip 40140-380 Sector Carbon Product Bahia-based carbon consultancy firm. References Ambiental PV[1] LinkedIn Connections CrunchBase Profile No CrunchBase profile. Create one now! This article is a stub. You can help OpenEI by expanding it. Ambiental PV is a company located in Bahia, Brazil . References ↑ "Ambiental PV" Retrieved from "http://en.openei.org/w/index.php?title=Ambiental_PV&oldid=342095" Categories: Clean Energy Organizations Companies Organizations Stubs What links here Related changes Special pages Printable version Permanent link Browse properties 429 Throttled (bot load) Error 429 Throttled (bot load) Throttled (bot load) Guru Meditation: XID: 186306960

230

BATTERY-POWERED, ELECTRIC-DRIVE VEHICLES PROVIDING BUFFER STORAGE FOR PV CAPACITY VALUE  

E-Print Network (OSTI)

installed over 1.5 MW of rooftop PV [2]. These systems generate value primarily through the energy produced and the intermittent nature of the solar resource create challenges to realizing the capacity value of PV installations

Perez, Richard R.

231

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

NLE Websites -- All DOE Office Websites (Extended Search)

provide to PV system purchasers? And what implications might they hold for stateutility PV grant programs? Using a generic (i.e., non-state-specific) cash flow model, this report...

232

PMMA Acrylic in a Stress-Response Framework for PV Materials  

E-Print Network (OSTI)

PMMA Acrylic in a Stress-Response Framework for PV Materials Laura S. Bruckman Materials Science, VuGraph 2 Motivation: Lifetime & Degradation Science for Photovoltaics Need scientific basis for PV, components, systems for PV · System lifetime performance Determine degradation modes, mechanisms and rates

Rollins, Andrew M.

233

City of Palo Alto Utilities - PV Partners | Department of Energy  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

PV Partners PV Partners City of Palo Alto Utilities - PV Partners < Back Eligibility Commercial Local Government Nonprofit Residential Schools Savings Category Solar Buying & Making Electricity Maximum Rebate Incentives available for first 1 MW Program Info Start Date July 2007 State California Program Type Utility Rebate Program Rebate Amount Systems Systems 30 kW and larger: Performance-based incentive (PBI), based on actual monthly energy produced (kWh) for 60 month term. For current rebate levels, visit the program website below. Provider City of Palo Alto Utilities The City of Palo Alto Utilities (CPAU) PV Partners Program offers incentives to customers that install qualifying PV systems. The program, which has a budget of approximately $13 million over 10 years, is divided

234

Ukiah Utilities - PV Buydown Program | Department of Energy  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Ukiah Utilities - PV Buydown Program Ukiah Utilities - PV Buydown Program Ukiah Utilities - PV Buydown Program < Back Eligibility Commercial Residential Savings Category Solar Buying & Making Electricity Maximum Rebate Residential: 7,000; Commercial: 20,000 Program Info State California Program Type Utility Rebate Program Rebate Amount Incentive Rate for systems installed between 7/1/12 and 6/30/13: $1.40/watt AC; incentive may be reduced based on expected performance Provider City of Ukiah 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 1 MW. In keeping with SB1, the incentive level will decrease annually on July 1 over the 10 year life of the program. Rebates are available on a first come, first

235

PV Powered Inc | Open Energy Information  

Open Energy Info (EERE)

PV Powered Inc PV Powered Inc Place Bend, Oregon Zip 97702 Product Oregon-based manufacturer of inverters for PV systems. Coordinates 44.05766°, -121.315549° Loading map... {"minzoom":false,"mappingservice":"googlemaps3","type":"ROADMAP","zoom":14,"types":["ROADMAP","SATELLITE","HYBRID","TERRAIN"],"geoservice":"google","maxzoom":false,"width":"600px","height":"350px","centre":false,"title":"","label":"","icon":"","visitedicon":"","lines":[],"polygons":[],"circles":[],"rectangles":[],"copycoords":false,"static":false,"wmsoverlay":"","layers":[],"controls":["pan","zoom","type","scale","streetview"],"zoomstyle":"DEFAULT","typestyle":"DEFAULT","autoinfowindows":false,"kml":[],"gkml":[],"fusiontables":[],"resizable":false,"tilt":0,"kmlrezoom":false,"poi":true,"imageoverlays":[],"markercluster":false,"searchmarkers":"","locations":[{"text":"","title":"","link":null,"lat":44.05766,"lon":-121.315549,"alt":0,"address":"","icon":"","group":"","inlineLabel":"","visitedicon":""}]}

236

Gansu PV Co Ltd | Open Energy Information  

Open Energy Info (EERE)

Gansu PV Co Ltd Gansu PV Co Ltd Place Lanzhou, Gansu Province, China Zip 730000 Sector Solar Product Gansu PV Co Ltd is active in manufacturing, installing and servicing SHS and small portable solar lighting systems. Coordinates 36.059299°, 103.756279° Loading map... {"minzoom":false,"mappingservice":"googlemaps3","type":"ROADMAP","zoom":14,"types":["ROADMAP","SATELLITE","HYBRID","TERRAIN"],"geoservice":"google","maxzoom":false,"width":"600px","height":"350px","centre":false,"title":"","label":"","icon":"","visitedicon":"","lines":[],"polygons":[],"circles":[],"rectangles":[],"copycoords":false,"static":false,"wmsoverlay":"","layers":[],"controls":["pan","zoom","type","scale","streetview"],"zoomstyle":"DEFAULT","typestyle":"DEFAULT","autoinfowindows":false,"kml":[],"gkml":[],"fusiontables":[],"resizable":false,"tilt":0,"kmlrezoom":false,"poi":true,"imageoverlays":[],"markercluster":false,"searchmarkers":"","locations":[{"text":"","title":"","link":null,"lat":36.059299,"lon":103.756279,"alt":0,"address":"","icon":"","group":"","inlineLabel":"","visitedicon":""}]}

237

Large-Scale PV Integration Study  

DOE Green Energy (OSTI)

This research effort evaluates the impact of large-scale photovoltaic (PV) and distributed generation (DG) output on NV Energys electric grid system in southern Nevada. It analyzes the ability of NV Energys 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.

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

2011-07-29T23:59:59.000Z

238

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

SciTech Connect

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.

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

2013-03-01T23:59:59.000Z

239

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

SciTech Connect

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.

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

2013-03-01T23:59:59.000Z

240

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

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

AEP SWEPCO - SMART Source Solar PV Program AEP SWEPCO - SMART Source Solar PV Program AEP SWEPCO - SMART Source Solar PV Program < Back Eligibility Residential Savings Category Solar Buying & Making Electricity Maximum Rebate Residential: $15,000 Non-residential: $30,000 Program Info Start Date 08/01/2009 State Texas Program Type Utility Rebate Program Rebate Amount Residential: $1.50/watt DC Non-residential: $1.20/watt DC Provider Smart Source PV Program Southwestern Electric Power Company (SWEPCO) offers rebates to customers that install photovoltaic (PV) systems on homes. Rebates may be assigned to the customer, a service provider, or a third party. Rebates are offered at a rate of $1.50 per watt (DC) for residential installations and $1.20 per watt (DC) for non-residential installations. The maximum per project and per customer rebate for residential systems is

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


241

Advanced, High-Reliability, System-Integrated 500kW PV Inverter Development: Final Subcontract Report, 29 September 2005 - 31 May 2008  

DOE Green Energy (OSTI)

Xantrex Technology accomplished subcontract goals of reducing parts cost, weight, and size of its 500-kW inverter by 25% compared to state-of-the-art PV inverters, while extending reliability by 25%.

West, R.

2008-08-01T23:59:59.000Z

242

Going Solar in Record Time with Plug-and-Play PV | Department of Energy  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Going Solar in Record Time with Plug-and-Play PV Going Solar in Record Time with Plug-and-Play PV Going Solar in Record Time with Plug-and-Play PV April 24, 2012 - 6:10pm Addthis A plug-and-play PV system is envisioned as a consumer friendly solar technology that uses an automatic detection system to initiate communication between the solar energy system and the utility when plugged into a PV-ready circuit. | Photo by iStock. A plug-and-play PV system is envisioned as a consumer friendly solar technology that uses an automatic detection system to initiate communication between the solar energy system and the utility when plugged into a PV-ready circuit. | Photo by iStock. Kevin Lynn Systems Integration Lead, SunShot Initiative What does this project do? The Energy Department is investing up to $5 million this year to

243

Most new residential solar PV projects in California program ...  

U.S. Energy Information Administration (EIA)

In 2012 and 2013, more than two ... leasing company, as the PV system's ... having someone else build and maintain the system by having to share some of the available ...

244

Colton Public Utilities - PV Rebate Program (California) | Open...  

Open Energy Info (EERE)

of more than 10% of the system's rated output. 5 year or better warranty on the inverter. Must comply with California Energy Commission Standards for PV systems and all...

245

Common Mode Voltage in case of Transformerless PV Inverters Connected to the Grid  

E-Print Network (OSTI)

through the parasitic capacitance of the PV panels, can reach very high values. A common-mode model based grid connected PV system with the modeled parasitic capacitances, marked with grey lines, presentCommon Mode Voltage in case of Transformerless PV Inverters Connected to the Grid T. KEREKES* R

Kerekes, Tamas

246

Report to California Energy Commission on route to scale-up of polymer based PV: Funding suggestions for research and technology  

E-Print Network (OSTI)

production potential for solar vent pre- heating, PV, and wind technologies. #12;6 These facilities should for a solar PV system in this report, has many near-ideal areas in which to implement a PV system solar resource, and excellent incentives, a government-owned PV system provides a reasonable payback

Islam, M. Saif

247

TekSun PV Manufacturing Inc | Open Energy Information  

Open Energy Info (EERE)

TekSun PV Manufacturing Inc TekSun PV Manufacturing Inc Jump to: navigation, search Name TekSun PV Manufacturing Inc Place Austin, Texas Zip 78701 Product US-based installer of PV systems; rportedly planning to buy a 120MW amorphous silicon PV manufacturing line from Applied Materials. Coordinates 30.267605°, -97.742984° Loading map... {"minzoom":false,"mappingservice":"googlemaps3","type":"ROADMAP","zoom":14,"types":["ROADMAP","SATELLITE","HYBRID","TERRAIN"],"geoservice":"google","maxzoom":false,"width":"600px","height":"350px","centre":false,"title":"","label":"","icon":"","visitedicon":"","lines":[],"polygons":[],"circles":[],"rectangles":[],"copycoords":false,"static":false,"wmsoverlay":"","layers":[],"controls":["pan","zoom","type","scale","streetview"],"zoomstyle":"DEFAULT","typestyle":"DEFAULT","autoinfowindows":false,"kml":[],"gkml":[],"fusiontables":[],"resizable":false,"tilt":0,"kmlrezoom":false,"poi":true,"imageoverlays":[],"markercluster":false,"searchmarkers":"","locations":[{"text":"","title":"","link":null,"lat":30.267605,"lon":-97.742984,"alt":0,"address":"","icon":"","group":"","inlineLabel":"","visitedicon":""}]}

248

City of Healdsburg - PV Incentive Program | Department of Energy  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Healdsburg - PV Incentive Program Healdsburg - PV Incentive Program City of Healdsburg - PV Incentive Program < Back Eligibility Commercial Residential Savings Category Solar Buying & Making Electricity Maximum Rebate Residential: $3,280 Commercial: $15,600 Program Info State California Program Type Utility Rebate Program Rebate Amount Residential: $0.82/watt AC Commercial: $0.78/watt AC Provider City of Healdsburg 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 Solar Initiative mandating that utilities put into place programs to assure that 3000 megawatts (MW) of solar installations on homes is in place within 10 years) the incentive level will decrease annually over the 10 year life of the program. The

249

AEP Texas Central Company - SMART Source Solar PV Rebate Program |  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Central Company - SMART Source Solar PV Rebate Program Central Company - SMART Source Solar PV Rebate Program AEP Texas Central Company - SMART Source Solar PV Rebate Program < Back Eligibility Agricultural Commercial Fed. Government Industrial Institutional Local Government Multi-Family Residential Nonprofit Residential Schools State Government Tribal Government Savings Category Solar Buying & Making Electricity Maximum Rebate Residential: $15,000 Non-residential: $31,2500 Program Info Start Date 08/01/2009 State Texas Program Type Utility Rebate Program Rebate Amount Residential: $1.50/W DC Non-residential: $1.25/W DC Provider Smart Source PV Program American Electric Power Texas Central Company (AEP-TCC) offers rebates to customers that install photovoltaic (PV) systems on homes or other buildings. Customers of all rate classes are eligible to participate in the

250

DOE/NREL Inner Mongolia PV/Wind Hybrid Systems Pilot Project: A Post-Installation Assessment  

DOE Green Energy (OSTI)

This report assesses the Inner Mongolia Pilot Project, which disseminates wind-solar hybrid systems to a rural and remote population.

Stroup, K. K.

2005-02-01T23:59:59.000Z

251

Optimal Solar PV Arrays Integration for Distributed Generation  

SciTech Connect

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.

Omitaomu, Olufemi A [ORNL; Li, Xueping [University of Tennessee, Knoxville (UTK)

2012-01-01T23:59:59.000Z

252

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

DOE Green Energy (OSTI)

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.

Ellis, Abraham; Mousseau, Tom (Knoxville, TN)

2011-08-01T23:59:59.000Z

253

Hercules Municipal Utility - PV Rebate Program | Department of Energy  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Hercules Municipal Utility - PV Rebate Program Hercules Municipal Utility - PV Rebate Program Hercules Municipal Utility - PV Rebate Program < Back Eligibility Commercial Residential Savings Category Solar Buying & Making Electricity Maximum Rebate Systems 10 kW or less: 10,000 Program Info State California Program Type Utility Rebate Program Rebate Amount '''2012:''' Systems up to 10 kW: 2.25/watt AC Systems larger than 10 kW: 0.17/kWh for 5 years'''''' Provider Hercules Municipal Utility '''''Note: This program has been temporarily suspended. Contact the utility for more information.''''' Hercules Municipal Utility offers a $2.25-per-watt AC rebate (2012 rebate level) to its residential and commercial customers who purchase and install solar photovoltaic (PV) systems smaller than 10 kilowatts (kW). Systems 10

254

City of Lompoc Utilities - PV Rebate Program | Department of Energy  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

PV Rebate Program PV Rebate Program City of Lompoc Utilities - PV Rebate Program < Back Eligibility Commercial Nonprofit Residential Savings Category Solar Buying & Making Electricity Maximum Rebate 50% the system cost, up to $50,000 Program Info Funding Source utility surcharge State California Program Type Utility Rebate Program Rebate Amount $2.00 per watt Provider Customer Service City of Lompoc Utilities provides rebates to its electric customers who purchase and install photovoltaic (PV) systems. The rebate is $2.00 per watt-AC. The incentive amount may not exceed 50% the cost of the system, up to a maximum of $50,000. To qualify for the rebate the system must meet all the criteria as defined by the Lompoc City Electric interconnection agreement for self-generating electric systems and the requirements set forth by the California Energy

255

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

DOE Green Energy (OSTI)

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.

Mather, B.; Neal, R.

2012-08-01T23:59:59.000Z

256

Energy Systems and Population Health  

E-Print Network (OSTI)

small (20 - 100 Wp) solar PV systems have been commerciallyGasification-based) PV (Residential) Solar Thermal (Power

2004-01-01T23:59:59.000Z

257

Merced Irrigation District - PV Buydown Program | Department of Energy  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Merced Irrigation District - PV Buydown Program Merced Irrigation District - PV Buydown Program Merced Irrigation District - PV Buydown Program < Back Eligibility Commercial Nonprofit Residential Savings Category Solar Buying & Making Electricity Maximum Rebate Residential: 8,400 Commercial: $70,000 Program Info State California Program Type Utility Rebate Program Rebate Amount 2.80/W AC, adjusted based on expected performance Provider Merced Irrigation District 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. The rebate is $2.80 per watt (adjusted based on the expected performance of the system) with a maximum of $8,400 for residential systems and $70,000 for non-residential systems.

258

Austin Energy - Residential Solar PV Rebate Program | Department...  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

offers a 1.50 per watt incentive to eligible residential who install photovoltaic (PV) systems on their homes. Rebates are limited to 15,000 per home installation and...

259

Perspective on International PV Challenge & Opportunities for Rural Development  

DOE Green Energy (OSTI)

International market opportunities for the sale and deployment of photovoltaic (PV) systems abound and will continue to out-pace domestic, grid-connected opportunities for the foreseeable future.

Taylor, R. W.

2000-01-01T23:59:59.000Z

260

City of Sunset Valley - PV Rebate Program | Department of Energy  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Amount 1.00W up to 3,000 W The City of Sunset Valley offers rebates to local homeowners who install photovoltaic (PV) systems on their properties. The local rebate acts as...

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


261

Potential Vorticity (PV) Thinking in Operations: The Utility of Nonconservation  

Science Conference Proceedings (OSTI)

The use of the potential vorticity (PV) framework by operational forecasters is advocated through case examples that demonstrate its utility for interpreting and evaluating numerical weather prediction (NWP) model output for weather systems ...

Michael J. Brennan; Gary M. Lackmann; Kelly M. Mahoney

2008-02-01T23:59:59.000Z

262

Taunton Municipal Lighting Plant- Residential PV Rebate Program  

Energy.gov (U.S. Department of Energy (DOE))

Customers of Taunton Municipal Lighting Plant (TMLP) may be eligible for $2.00/watt rebate on solar photovoltaic (PV) installations. The minimum system size eligible for this rebate is 1 kilowatt ...

263

Zhonghuite PV Technology Co | Open Energy Information  

Open Energy Info (EERE)

Zhonghuite PV Technology Co Jump to: navigation, search Name Zhonghuite PV Technology Co Place Jiangxi Province, China Sector Solar Product Jiangxi-based solar project developer....

264

Lassen Municipal Utility District - PV Rebate Program | Department of  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Lassen Municipal Utility District - PV Rebate Program Lassen Municipal Utility District - PV Rebate Program Lassen Municipal Utility District - PV Rebate Program < Back Eligibility Commercial Residential Savings Category Solar Buying & Making Electricity Maximum Rebate Residential: $5,000 or 50% of system cost, whichever is less Commercial: $23,000 or 50% of system cost, whichever is less. Program Info State California Program Type Utility Rebate Program Rebate Amount Residential: $3.00/W-AC Commercial: $2.10/W-AC Provider Lassen Municipal Utility District Lassen Municipal Utility District (LMUD) is providing incentives for its customers to purchase solar electric photovoltaic (PV) systems. Rebate levels will decrease annually over the life of the program. Through June 30, 2014, rebates of $3.00 per watt-AC up to $5,000 are available for

265

SMUD - PV Residential Retrofit Buy-Down | Department of Energy  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

PV Residential Retrofit Buy-Down PV Residential Retrofit Buy-Down SMUD - PV Residential Retrofit Buy-Down < Back Eligibility Residential Savings Category Solar Buying & Making Electricity Maximum Rebate No maximum limit Program Info State California Program Type Utility Rebate Program Rebate Amount $0.20/watt AC. Incentive is adjusted based on expected performance. The incentive can be paid directly to the customer or to the installer. Provider Sacramento Municipal Utility District SMUD offers an incentive of $0.20 per watt (W) AC to residential customers who install grid-connected photovoltaic (PV) systems. Customers do not have to contract directly with SMUD-approved contractors for the purchase and installation of the system, however this is recommended. All systems must be permitted and installed by B, C-10, or C-46 contractors. The incentive

266

SMUD - Non-Residential PV Incentive Program | Department of Energy  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Non-Residential PV Incentive Program Non-Residential PV Incentive Program SMUD - Non-Residential PV Incentive Program < Back Eligibility Commercial Industrial Nonprofit Savings Category Solar Buying & Making Electricity Maximum Rebate $650,000 for up-front incentives at current $0.65/W incentive level. Program Info State California Program Type Utility Rebate Program Rebate Amount Expected Performance Based Incentive (for systems up to 1 MW): 0.65/watt AC; incentive adjusted based on expected performance Performance Based Incentive: 0.10/kWh for 5 years or 0.06/kWh for 10 years Incentives are decreased for systems > 1 MW Provider Sacramento Municipal Utility District SMUD offers cash incentives to commercial, industrial, and non-profit customers who install solar photovoltaic (PV) systems. Customers have the

267

PV Manufacturing R&D Accomplishments and Status  

DOE Green Energy (OSTI)

The U.S. Department of Energy (DOE) PV Manufacturing Research and Development Project has worked for 11 years in partnership with the U.S. photovoltaic industry to reduce manufacturing costs while significantly scaling up production capacity. Over this period, the PV Manufacturing R&D Project has issued seven solicitations for partnerships that have resulted in over 50 cost-shared R&D subcontracts that addressed the cost and capacity goals of the Project, including 10 that are currently active. The previous and current contracts have typically focused on addressing Project goals in one of two areas: module manufacturing and balance-of-systems (BOS)/systems work. The majority of the DOE investment has been targeted toward module manufacturing. The partnerships have resulted in a significant and measurable increase in PV module/systems production capacity, a decrease in PV manufacturing costs, and a subsequent return on the joint public and private investments facilitated by the Project.

Mooney, D.; Mitchell, R.; Witt, E.; King, R.; Ruby, D.

2003-11-01T23:59:59.000Z

268

Full Steam Ahead for PV in US Homes?  

Science Conference Proceedings (OSTI)

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.

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

2009-01-15T23:59:59.000Z

269

Riverside Public Utilities - Residential PV Incentive Program | Department  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

PV Incentive Program PV Incentive Program Riverside Public Utilities - Residential PV Incentive Program < Back Eligibility Residential Savings Category Solar Buying & Making Electricity Maximum Rebate 13,000 or 50% of project cost, whichever is less Program Info State California Program Type Utility Rebate Program Rebate Amount Program is on hold Provider Riverside Public Utilities '''''Note: Funding for this program has been exhausted for the remainder of the fiscal year. The program is scheduled to reopen on July 1, 2014. ''''' The Residential Photovoltaic (PV) System rebate program provides incentives to Riverside Public Utilities customers who purchase and install qualifying photovoltaic systems on their homes. For Fiscal Year 2013, the rebate amount was $2.00 per watt AC and cannot exceed 50% of the total system cost

270

Integrating High Penetrations of PV into Southern California  

Science Conference Proceedings (OSTI)

California regulators recently approved a plan proposed by Southern California Edison (SCE) to install 500 MW of distributed photovoltaic (PV) energy in its utility service territory over the next 5 years. The installations will include 250 MW of utility-owned solar and 250 MW of independently owned solar. SCE expects that the majority of these systems will be commercial-scale rooftop PV systems connected at various points in the distribution system. Each of the SCE rooftop PV systems will typically have a rating of 1-3 MW. To understand the impact of high-penetration PV on the distribution grid, the National Renewable Energy Laboratory (NREL) and SCE brought together a team of experts in resource assessment, distribution modeling, and planning to help analyze the impacts of adding high penetration of PV into the distribution system. Through modeling and simulation, laboratory testing, and field demonstrations, the team will address the issues identified in the analysis by fully examining the challenges, developing solutions, and transitioning those solutions to the field for large-scale deployment. This paper gives an update on the project and discusses technical results of integrating a large number of distributed PV systems into the grid.

Kroposki, B.; Mather, B.; Hasper-Tuttle, J.; Neal, R.; Katiraei, F.; Yazdani, A.; Aguero, J. R.; Hoff, T. E.; Norris, B. L.; Parkins, A.; Seguin, R.; Schauder, C.

2011-01-01T23:59:59.000Z

271

New codes and standards for utility - interconnection of AC PV modules  

DOE Green Energy (OSTI)

Photovoltaic (PV) modules that provide only ac power give new dimensions to the use of, and utility interface of, PV systems because all of the dc issues are virtually eliminated. These AC PV modules offer the important advantage that customers may now purchase a PV system without hiring a design engineer. A qualified electrician will be able to install a complete PV system that performs as expected and meets local electrical codes. Simple installations of additional AC PV modules will be possible once the proper branch circuit wiring and protection have been installed. Codes and standards are currently being written to address the utility-interconnect issues for AC PV modules and other interactive inverters. An industry-supported Task Group has recently written and submitted proposals for changes to bring Article 690 of the 1999 National Electrical Code{reg_sign} (NEC{reg_sign}) up to the state-of-the-art for PV devices such as AC PV modules. This paper summarizes the proposed code changes and standards related to the evolving AC PV module technology in the United States. Topics such as the need for dedicated branch circuits for AC PV modules in residential applications are discussed and analyzed. Requirements for limiting the number of AC modules on a branch circuit and the listing requirements that make safe installations are discussed. Coordination of all standards activities for AC module installations, the building-integrated perspectives, and utility-interface issues is discussed.

Bower, W.

1997-10-01T23:59:59.000Z

272

Final Technical Report - Recovery Act: Organic Coatings as Encapsulants for Low Cost, High Performance PV Modules  

DOE Green Energy (OSTI)

The objective of this project was to evaluate the feasibility of utilizing PPG's commercial organic coatings systems as efficient, modernized encapsulants for low cost, high performance, thin film photovoltaic modules. Our hypothesis was that the combination of an anticorrosive coating with a more traditional barrier topcoat would mitigate many electrochemical processes that are now responsible for the significant portion of photovoltaic (PV) failures, thereby nullifying the extremely high moisture barrier requirements of currently used encapsulation technology. Nine commercially available metal primer coatings and six commercially available top coatings were selected for screening. Twenty-one different primer/top coat combinations were evaluated. The primer coatings were shown to be the major contributor to corrosion inhibition, adhesion, and barrier properties. Two primer coatings and one top coating were downselected for testing on specially-fabricated test modules. The coated test modules passed initial current leakage and insulation testing. Damp Heat testing of control modules showed visible corrosion to the bus bar metal, whereas the coated modules showed none. One of the primer/top coat combinations retained solar power performance after Damp Heat testing despite showing some delamination at the EVA/solar cell interface. Thermal Cycling and Humidity Freeze testing resulted in only one test module retaining its power performance. Failure modes depended on the particular primer/top coating combination used. Overall, this study demonstrated that a relatively thin primer/top coating has the potential to replace the potting film and backsheet in crystalline silicon-based photovoltaic modules. Positive signals were received from commercially available coatings developed for applications having performance requirements different from those required for photovoltaic modules. It is likely that future work to redesign and customize these coatings would result in a coating system meeting the requirements for photovoltaic module encapsulation.

Stuart Hellring; Jiping Shao; James Poole

2011-12-05T23:59:59.000Z

273

Kenmos PV | Open Energy Information  

Open Energy Info (EERE)

Kenmos PV Kenmos PV Jump to: navigation, search Name Kenmos PV Place Tainan, Taiwan Sector Solar Product Solar business unit of Kenmos Technology which was set up in Sep 2007, to produce thin film PV cells. Coordinates 22.99721°, 120.180862° Loading map... {"minzoom":false,"mappingservice":"googlemaps3","type":"ROADMAP","zoom":14,"types":["ROADMAP","SATELLITE","HYBRID","TERRAIN"],"geoservice":"google","maxzoom":false,"width":"600px","height":"350px","centre":false,"title":"","label":"","icon":"","visitedicon":"","lines":[],"polygons":[],"circles":[],"rectangles":[],"copycoords":false,"static":false,"wmsoverlay":"","layers":[],"controls":["pan","zoom","type","scale","streetview"],"zoomstyle":"DEFAULT","typestyle":"DEFAULT","autoinfowindows":false,"kml":[],"gkml":[],"fusiontables":[],"resizable":false,"tilt":0,"kmlrezoom":false,"poi":true,"imageoverlays":[],"markercluster":false,"searchmarkers":"","locations":[{"text":"","title":"","link":null,"lat":22.99721,"lon":120.180862,"alt":0,"address":"","icon":"","group":"","inlineLabel":"","visitedicon":""}]}

274

Lodi Electric Utility - PV Rebate Program | Department of Energy  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Lodi Electric Utility - PV Rebate Program Lodi Electric Utility - PV Rebate Program Lodi Electric Utility - PV Rebate Program < Back Eligibility Commercial Industrial Local Government Residential Savings Category Solar Buying & Making Electricity Maximum Rebate Residential: $7,000 Non-residential: $40,000 Program Info Expiration Date January 1, 2018 State California Program Type Utility Rebate Program Rebate Amount 2013 Program Year: $1.94/W AC Incentives will be adjusted based on expected performance Provider Customer Programs Lodi Electric Utility offers rebates to its residential, commercial, industrial and municipal customers who install photovoltaic (PV) systems. The rebate program is funded with approximately $6 million to support systems installed between January 1, 2008 and January 1, 2018. The total

275

Plumas-Sierra REC - PV Rebate Program | Department of Energy  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

PV Rebate Program PV Rebate Program Plumas-Sierra REC - PV Rebate Program < Back Eligibility Agricultural Commercial Industrial Nonprofit Residential Savings Category Solar Buying & Making Electricity Maximum Rebate $6,000 for residential; $12,000 for small commercial, agricultural and non-profit applications; $20,000 for large commercial and industrial applications Program Info State California Program Type Utility Rebate Program Rebate Amount 2012 rebate level: $2.09/watt (AC) Incentives will be adjusted based on expected performance. Provider Plumas-Sierra REC 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 kW; the rebate amount is based on the installed capacity. The rebate level will decreases

276

Evaluation of the Performance of the PVUSA Rating Methodology Applied to Dual Junction PV Technology: Preprint (Revised)  

DOE Green Energy (OSTI)

The PVUSA (Photovoltaics for Utility Scale Applications) project in the 1990's developed a rating methodology for PV performance evaluation which has become popular, and even incorporated into concentrating PV rating standards This report apply that method to rack-mounted dual-junction PV system, and produces a system rating.

Myers, D. R.

2009-07-01T23:59:59.000Z

277

PSCAD Modules Representing PV Generator  

SciTech Connect

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.

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

2013-08-01T23:59:59.000Z

278

Solar PV Market Update, Volume 4: Q4 2012  

Science Conference Proceedings (OSTI)

Volume 4 of EPRIs quarterly Solar PV Market Update provides continued insight into some of the front line trends that are afoot throughout the photovoltaic segment. Like previous Updates, it synthesizes primary as well as secondary data from multiple sources in an effort to highlight both macro and micro industry developments that are likely to impact utility solar PV investment and planning efforts. Specifically, this report discusses the increasing impact of balance-of-system (BOS) ...

2012-12-31T23:59:59.000Z

279

Advanced Metering Infrastructure (AMI) for Distributed Solar (PV) Integration  

Science Conference Proceedings (OSTI)

This report summarizes the findings from a survey on two-way communication with distributed photovoltaic (PV) generation. The survey focused specifically on exploring how advanced metering infrastructure might be used as the communication means for the integration of residential PV systems. This investigation is one of several data-gathering projects in the Electric Power Research Institutes (EPRIs) Renewables Integration program (P174). Together, these projects and the data they provide will lay the ...

2009-09-09T23:59:59.000Z

280

Characteristics of CALIPSO and CloudSat Backscatter at the Top Center Layers of Mesoscale Convective Systems and Relation to Cloud Microphysics  

Science Conference Proceedings (OSTI)

Following the discovery of anomalously high values of lidar integrated attenuated backscatter near the top center layers of mesoscale convective systems (MCSs) observed by the NASA Lidar In-Space Technology Experiment (LITE), a search of Cloud ...

C. M. R. Platt; M. A. Vaughan; R. T. Austin

2011-02-01T23:59:59.000Z

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


281

A Better Steam Engine: Designing a Distributed Concentrating Solar Combined Heat and Power System  

E-Print Network (OSTI)

a transformative technology. Solar PV, wind, geothermal, andon the whole. Thus, solar CHP and PV systems can be comparedevaluate whether solar CHP and PV systems perform similarly

Norwood, Zachary Mills

2011-01-01T23:59:59.000Z

282

Designing PV Incentive Programs to Promote Performance: A Reviewof Current Practice  

SciTech Connect

Increasing levels of financial support for customer-sited photovoltaic (PV) systems, provided through publicly-funded incentive programs, has heightened concerns about the long-term performance of these systems. Given the barriers that customers face to ensuring that their PV systems perform well, and the responsibility that PV incentive programs bear to ensure that public funds are prudently spent, these programs should, and often do, play a critical role in ensuring that PV systems receiving incentives perform well. To provide a point of reference for assessing the current state of the art, and to inform program design efforts going forward, we examine the approaches to encouraging PV system performance used by 32 prominent PV incentive programs in the U.S. We identify eight general strategies or groups of related strategies that these programs have used to address performance issues, and highlight important differences in the implementation of these strategies among programs.

Barbose, Galen; Wiser, Ryan; Bolinger, Mark

2007-06-01T23:59:59.000Z

283

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

E-Print Network (OSTI)

E NERGY Shaking Up the Residential PV Market: Implicationsthe Revised Residential Credit ..ITC (capped at $2,000) for residential solar systems. Both

Bolinger, Mark

2008-01-01T23:59:59.000Z

284

Progress Energy Florida - SunSense Commercial PV Incentive Program |  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Progress Energy Florida - SunSense Commercial PV Incentive Program Progress Energy Florida - SunSense Commercial PV Incentive Program Progress Energy Florida - SunSense Commercial PV Incentive Program < Back Eligibility Commercial Savings Category Solar Buying & Making Electricity Maximum Rebate 130,000 per participant Program Info Start Date 03/15/2011 State Florida Program Type Utility Rebate Program Rebate Amount First 10 kW: 2/watt 11 kW - 50 kW: 1.50/watt 51 kW - 100 kW: 1/watt Provider Business Customer Service '''''Progress Energy Florida will begin accepting applications at 10:00 a.m. October 1, 2012, for customers to apply for the 2013 rebates.''''' In March 2011, Progress Energy Florida began offering incentives to commercial customers who install photovoltaic (PV) systems. Incentive rates are based on a tiered structure:

285

Pacific Power - PV Rebate Program (California) | Department of Energy  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Pacific Power - PV Rebate Program (California) Pacific Power - PV Rebate Program (California) Pacific Power - PV Rebate Program (California) < Back Eligibility Agricultural Commercial Fed. Government Industrial Residential Schools State Government Savings Category Solar Buying & Making Electricity Maximum Rebate Commercial: $90,000 Tax-exempt Entities: $277,500 Program Info Start Date 07/01/2011 Expiration Date 07/1/2015 State California Program Type Utility Rebate Program Rebate Amount Incentives may be adjusted based on expected performance. Incentive amounts below are current as of 12/14/12. See program website for current status. Residential: $1.13/W CEC-AC Commercial: $0.36/W CEC-AC Tax-exempt Entities: $1.11/W CEC-AC Pacific Power is providing rebates to their customers who install photovoltaic (PV) systems on their homes and facilities. These rebates step

286

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

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Maricopa Assn. of Governments - PV and Solar Domestic Water Heating Maricopa Assn. of Governments - PV and Solar Domestic Water Heating Permitting Standards Maricopa Assn. of Governments - PV and Solar Domestic Water Heating Permitting Standards < Back Eligibility Commercial Construction Installer/Contractor Residential Savings Category Solar Buying & Making Electricity Heating & Cooling Water Heating Program Info State Arizona Program Type Solar/Wind Permitting Standards Provider Maricopa Association of Governments In an effort to promote uniformity, the Maricopa Association of Governments (MAG) approved standard procedures for securing necessary electrical/building permits for residential (single-family) and commercial PV systems. These procedures are a part of the MAG Building Code Standards. The standards address requirements for the solar installation, plans,

287

Triggering Top Quark Events  

E-Print Network (OSTI)

Collisions at the LHC occur at a rate of up to 40 MHz, much larger than the 200 Hz storage capacity of the ATLAS experiment. The ATLAS trigger system has the challenging task of rejecting 99.9995 % of the events produced in collisions, while keeping those needed to achieve the physics goals of the experiment. This note evaluates the expected performance of the trigger system in top quark events by investigating the response of the trigger system to single objects such as a muon, an electron or a jet originating from top quark decays. In addition, the methodology needed to efficiently select top quark events in the online trigger system is discussed including methods to determine trigger efficiencies from data.

The ATLAS collaboration

2009-01-01T23:59:59.000Z

288

Review of PV Inverter Technology Cost and Performance Projections  

DOE Green Energy (OSTI)

The National Renewable Energy Laboratory (NREL) has a major responsibility in the implementation of the U.S. Department of Energy's (DOE's) Solar Energy Technologies Program. Sandia National Laboratories (SNL) has a major role in supporting inverter development, characterization, standards, certifications, and verifications. The Solar Energy Technologies Program recently published a Multiyear Technical Plan, which establishes a goal of reducing the Levelized Energy Cost (LEC) for photovoltaic (PV) systems to $0.06/kWh by 2020. The Multiyear Technical Plan estimates that, in order to meet the PV system goal, PV inverter prices will need to decline to $0.25-0.30 Wp by 2020. DOE determined the need to conduct a rigorous review of the PV Program's technical and economic targets, including the target set for PV inverters. NREL requested that Navigant Consulting Inc.(NCI) conduct a review of historical and projected cost and performance improvements for PV inverters, including identification of critical barriers identified and the approaches government might use to address them.

Navigant Consulting Inc.

2006-01-01T23:59:59.000Z

289

Review of PV Inverter Technology Cost and Performance Projections  

SciTech Connect

The National Renewable Energy Laboratory (NREL) has a major responsibility in the implementation of the U.S. Department of Energy's (DOE's) Solar Energy Technologies Program. Sandia National Laboratories (SNL) has a major role in supporting inverter development, characterization, standards, certifications, and verifications. The Solar Energy Technologies Program recently published a Multiyear Technical Plan, which establishes a goal of reducing the Levelized Energy Cost (LEC) for photovoltaic (PV) systems to $0.06/kWh by 2020. The Multiyear Technical Plan estimates that, in order to meet the PV system goal, PV inverter prices will need to decline to $0.25-0.30 Wp by 2020. DOE determined the need to conduct a rigorous review of the PV Program's technical and economic targets, including the target set for PV inverters. NREL requested that Navigant Consulting Inc.(NCI) conduct a review of historical and projected cost and performance improvements for PV inverters, including identification of critical barriers identified and the approaches government might use to address them.

Navigant Consulting Inc.

2006-01-01T23:59:59.000Z

290

How Can We Make PV Modules Safer?: Preprint  

SciTech Connect

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.

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

2012-06-01T23:59:59.000Z

291

Analysis of the leak-detection system for top welds of EBR-II fuel elements  

SciTech Connect

An analysis of the leak detector used to check the top welds on EBR-II fuel elements was performed. Data were obtained to allow calculation of volumes of the metering chamber and test chamber at each station of the leak detector. These volumes and a mathematical model were used to calculate decrease in pressure with time for each station. Values for calibrated leaks and unknown leak rates were compared with calculated ones. The calculated results for the two calibrated leaks agreed with the observed pressure-time results for the two leaks. Results show that determining the volumes of each leak-detector station allows the leakrate sensitivity to be readily calculated for each station. One leak-detector station could not detect a minimum leak rate of 2 x 10/sup -4/ std cm/sup 3/ sec at 40 atm, which is the current specification. The other four stations could meet the specification. Suggestions are given for periodic calibration of the leak detectors as well as precautions that must be observed to achieve optimum sensitivity when operating the leak detector. (auth)

Hudman, G.D.; Walters, L.C.

1973-05-01T23:59:59.000Z

292

PV FAQs: How Much Land Will PV Need to Supply Our Electricity?  

DOE Green Energy (OSTI)

This PV FAQ fact sheet answers the question ''How much land will PV need to supply our electricity?'' The answer is that PV could supply our electricity with little visible impact on our landscape.

Not Available

2004-01-01T23:59:59.000Z

293

A visual inspection system for evaluating the interior surface of valve stems on material storage container tops  

SciTech Connect

A nondestructive inspection for evaluating the interior surface of the small diameter valve stems on material storage container tops was mandated. The specifications required that the interior surface of the valve stem have a surface finish of {number sign}16 or better. Conventional methods which utilizes mechanical stylus-type''surface analyzing equipment could not extend into the narrow 0.312 inch diameter by 1.5 inch deep hole (of the valve stem). A visual inspection system which exploits the capabilities of a high resolution fiberoptic borescope was designed and assembled to resolve this requirement. This paper discusses the design and inspection features of the aforementioned system and includes several illustrations of inspection results. 6 figs.

Pickett, C.A.

1990-12-01T23:59:59.000Z

294

solar PV | OpenEI  

Open Energy Info (EERE)

PV PV Dataset Summary Description This dataset highlights trends in financing terms for U.S. renewable energy projects that closed financing between Q3 2009 and Q3 2010. Information tracked includes debt interest rates, equity returns, financial structure applied, PPA duration, and other information. NREL's Renewable Energy Finance Tracking Initiative (REFTI) tracks renewable energy project financing terms by technology and project size. The intelligence gathered is intended to reveal industry trends and to inform input assumptions for models. Source NREL Date Released March 27th, 2011 (3 years ago) Date Updated Unknown Keywords biomass financial geothermal project finance solar PV wind onshore Data application/vnd.openxmlformats-officedocument.spreadsheetml.sheet icon RE Project Finance Trends Q3 2009 - Q3 2010 (xlsx, 309.2 KiB)

295

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

DOE Green Energy (OSTI)

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.

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

2012-09-01T23:59:59.000Z

296

Building America Top Innovations 2013 Profile … Quality Management System Guidelines  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

management system tools customized for residential construction management system tools customized for residential construction are ready for use by builders, trades, and designers to help eliminate mistakes that would require high-cost rework. Unlike many manufacturing industries, home construction is usually accomplished through the cooperation of several businesses, including the designer; the architect; the builder; site supervisors; HVAC, plumbing, electrical, framing, roofing, insulation and other contractors; manufacturers and suppliers of materials and components, code inspectors, Home Energy Rating System (HERS) raters, and mortgage lenders. Historically, relationships in the residential construction industry are adversarial, with multiple disconnects and conflicts among the builder, subcontractors, material and product suppliers, and manufacturers.

297

Building America Top Innovations 2013 Profile … Quality Management System Guidelines  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Management System tools customized for residential construction Management System tools customized for residential construction are ready for use by builders, trades, and designers to help eliminate mistakes that would require high-cost rework. Unlike many manufacturing industries, home construction is usually accomplished through the cooperation of several businesses, including the designer; the architect; the builder; site supervisors; HVAC, plumbing, electrical, framing, roofing, insulation and other contractors; manufacturers and suppliers of materials and components, code inspectors, Home Energy Rating System (HERS) raters, and mortgage lenders. Historically, relationships in the residential construction industry are adversarial, with multiple disconnects and conflicts among the builder, subcontractors, material and product suppliers, and manufacturers.

298

An Analysis of the Effects of Residential Photovoltaic Energy Systems on Home Sales Prices in California  

E-Print Network (OSTI)

Market Value of Residential Solar PV. Journal of SustainableConclusions The market for solar PV is expanding rapidly ingrid-connected solar photovoltaic (PV) energy systems were

Hoen, Ben

2011-01-01T23:59:59.000Z

299

The Impact of Retail Rate Structures on the Economics of Commercial Photovoltaic Systems in California  

E-Print Network (OSTI)

Markets. Rowlands, I. 2005. Solar PV Electricity and Market2003. Maximizing PV Peak Shaving with Solar Load Control:sited photovoltaic (PV) systems, solar will likely need to

Wiser, Ryan; Mills, Andrew; Barbose, Galen; Golove, William

2007-01-01T23:59:59.000Z

300

Results from Undergraduate PV Projects at Seven Historically Black Colleges and Universities  

DOE Green Energy (OSTI)

In 1995, the NREL/Department of Energy (DOE) National Photovoltaics Program funded seven Historically Black Colleges and Universities (HBCUs) in its HBCU Photovoltaic Research Associates Program for a period of three years. The program's purpose is to advance HBCU undergraduate knowledge of photovoltaics, primarily as a result of research investigations performed, and to encourage students to pursue careers in photovoltaics. This paper presents results from PV projects ranging from fundamental materials research on PV materials to field projects of PV systems.

McConnell, R. D.

1999-03-03T23:59:59.000Z

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


301

Energy 101: Solar PV | Department of Energy  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Solar PV Solar PV Energy 101: Solar PV Addthis Below is the text version for the Energy 101: Solar PV video. The video opens with "Energy 101: Solar PV." This is followed by a timelapse shot of a city skyline as day turns to night. All right, we all know that the sun's energy creates heat and light, but it can also be converted to make electricity...and lots of it. The video shows images of building roofs, with and without solar photovoltaic panels. The words "Solar Photovoltaics (PV) appear onscreen over an image of a photovoltaic panel. One technology is called solar photovoltaics, or PV for short. Various images of solar panels appear onscreen, followed by images of photovoltaic manufacturing processes. You've probably seen PV panels around for years... but recent advancements

302

PV Frontogenesis and Upper-Tropospheric Fronts  

Science Conference Proceedings (OSTI)

Upper-tropospheric fronts and frontogenesis are viewed from a potental vorticity (PV) perspective. The rudiments of this approach are to regard such a front as a zone of strong PV gradient on isentropic surfaces, and to treat the accompanying ...

H. C. Davies; A. M. Rossa

1998-06-01T23:59:59.000Z

303

Estimating the environmental and economic effects of widespread residential PV adoption using GIS and NEMS  

Science Conference Proceedings (OSTI)

This paper describes a study of the national effects of widespread adoption of grid-connected residential rooftop photovoltaic (PV) systems. A Geographic Information System (GIS) model is used to estimate potential PV system adoption and PV electricity generation and the National Energy Modeling System (NEMS) is used to estimate the national effects of PV electricity generation. Adoption is assumed to occur if levelized PV system cost is less than the local average retail electricity rate at the country level. An estimate of the current {open_quotes}best{close_quotes} scenario (defined by a 6.5% real interest rate, 30-year loan life, $6{sub 1994}/W system cost, and $4{sub 1994}/month voluntary premium) results in no adoption. Several scenarios designed to stimulate PV adoption are modeled. As an example, if PV system costs are instead assumed to be $3{sub 1994}/W, rooftop systems are found to be cost effective in 16% of detached single-family households in the U.S. by 2015 (assuming full adoption of 4-kW systems), this results in 82.1 TWh of annual PV electricity generation, 170 TWh of avoided electricity transmission, distribution, and generation losses, 6 Mt/a of avoided carbon emissions, 50 kt/a of avoided NOx emissions, and 27.3 GW of avoided electricity generating capacity in place.

Marnay, C.; Richey, R.C.; Mahler, S.A. [and others

1997-10-01T23:59:59.000Z

304

Building America Top Innovations 2013 Profile … HPXML: A Standardized Home Performance Data Sharing System  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

program tracking systems and program tracking systems and energy upgrade analysis software. Many software platforms are available for recording the results of home energy audits for energy-efficiency upgrades and for analyzing home energy performance. Because states and utilities have adopted different tools for compiling and analyzing the data, home performance companies that participate in multiple utility programs or operate over multiple regions need proficiency in each of the reporting platforms used. The necessity of being fluent in multiple programs and of providing results in numerous platforms dramatically increases the home performance companies' information technology infrastructure and training costs. The National Renewable Energy Laboratory (NREL) has supported the

305

Cloud MapReduce: A MapReduce Implementation on Top of a Cloud Operating System  

Science Conference Proceedings (OSTI)

Like a traditional Operating System (OS), a cloud OS is responsible for managing the low level cloud resources and presenting a high level interface to the application programmers in order to hide the infrastructure details. However, unlike a traditional ... Keywords: cloud, mapreduce, Amazon web services

Huan Liu; Dan Orban

2011-05-01T23:59:59.000Z

306

Photovoltaics for Buildings: Case Studies of High-Performance Buildings with PV  

SciTech Connect

Energy efficiency maximizes the value of photovoltaics (PV) in buildings systems. A fixed-sizre PV system will offset a much larger part of the electrical load in an energy-efficient building than in a building whose energy design has not been optimized.

Hayter, S. J.; Torcellini, P. A.

2000-01-01T23:59:59.000Z

307

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

E-Print Network (OSTI)

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

Oregon, University of

308

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

E-Print Network (OSTI)

PV AND GRID RELIABILITY: AVAILABILITY OF PV POWER DURING CAPACITY SHORTFALLS Richard Perez reliability benefits, is to look at PV availability during instances of major grid stress and supply shortfall of these events and show that PV+end-use load control could be 100% reliable with only a minimal end-use impact. 2

Perez, Richard R.

309

New York City - Property Tax Abatement for Photovoltaic (PV) Equipment  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Property Tax Abatement for Photovoltaic (PV) Property Tax Abatement for Photovoltaic (PV) Equipment Expenditures New York City - Property Tax Abatement for Photovoltaic (PV) Equipment Expenditures < Back Eligibility Commercial Industrial Institutional Multi-Family Residential Nonprofit Residential Schools Savings Category Solar Buying & Making Electricity Maximum Rebate $62,500 annually or the amount of real property taxes owed during a year Program Info Start Date 08/05/2008 State New York Program Type Property Tax Incentive Rebate Amount Installed from August 5, 2008 to December 31, 2010: 8.75% of system expenditures per year for 4 years (total of 35%); Installed from January 1, 2011 to December 31, 2012: 5% of system expenditures per year for 4 years (total of 20%); Installed from January 1, 2013 to December 31, 2014: 2.5% of system

310

Developing Market Opportunities for Flexible Rooftop Applications of PV Using Flexible CIGS Technology: Market Considerations  

SciTech Connect

There has been a recent upsurge in developments for building-integrated phototovoltaics (BiPV) roof top materials based on CIGS. Several new companies have increased their presence and are looking to bring products to market for this application in 2011. For roof-top application, there are significant key requirements beyond just having good conversion efficiency. Other attributes include lightweight, as well as moisture-proof, and fully functionally reliable. The companies bringing these new BIPV/BAPV products need to ensure functionality with a rigorous series of tests, and have an extensive set of 'torture' tests to validate the capability. There is a convergence of form, aesthetics, and physics to ensure that the CIGS BiPV deliver on their promises. This article will cover the developments in this segment of the BiPV market and delve into the specific tests and measurements needed to characterize the products. The potential market sizes are evaluated and the technical considerations developed.

Sabnani, L.; Skumanich, A.; Ryabova, E.; Noufi, R.

2011-01-01T23:59:59.000Z

311

Building America Top Innovations 2013 Profile … HPXML: A Standardized Home Performance Data Sharing System  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

home performance program tracking home performance program tracking systems and energy upgrade analysis software. Many software platforms are available for recording the results of home energy audits for energy-efficiency upgrades and for analyzing home energy performance. Because states and utilities have adopted different tools for compiling and analyzing the data, home performance companies that participate in multiple utility programs or operate over multiple regions need proficiency in each of the reporting platforms used. The necessity of being fluent in multiple programs and of providing results in numerous platforms dramatically increases the home performance companies' information technology infrastructure and training costs. The National Renewable Energy Laboratory (NREL) has supported the

312

California Solar Initiative - PV Incentives | Department of Energy  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

PV Incentives California Solar Initiative - PV Incentives Eligibility Agricultural Commercial Fed. Government Industrial Institutional Local Government Low-Income Residential...

313

New York Sun Competitive PV Program (New York) | Department of Energy  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Sun Competitive PV Program (New York) Sun Competitive PV Program (New York) New York Sun Competitive PV Program (New York) < Back Eligibility Agricultural Commercial Construction Fuel Distributor Industrial Installer/Contractor Institutional Investor-Owned Utility Local Government Low-Income Residential Multi-Family Residential Municipal/Public Utility Nonprofit Residential Retail Supplier Rural Electric Cooperative Schools Systems Integrator Tribal Government Utility Savings Category Solar Buying & Making Electricity Program Info State New York Program Type Renewables Portfolio Standards and Goals Provider New York State Energy Research and Development Authority The New York Sun Competitive Photovoltaic (PV) Program is an expansion of the Renewable Portfolio Standard (RPS) Customer-Sited Tier Regional Program

314

The 'America's Next Top Energy Innovator' Challenge Begins Today |  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

The 'America's Next Top Energy Innovator' Challenge Begins Today The 'America's Next Top Energy Innovator' Challenge Begins Today The 'America's Next Top Energy Innovator' Challenge Begins Today May 2, 2011 - 12:02pm Addthis Lasers used for photovoltaic research in one of SERI's PV labs. | Photo courtesy of the National Renewable Energy Laboratory Lasers used for photovoltaic research in one of SERI's PV labs. | Photo courtesy of the National Renewable Energy Laboratory Ginny Simmons Ginny Simmons Former Managing Editor for Energy.gov, Office of Public Affairs What does this mean for me? The Energy Department's 17 national laboratories currently hold more than 15,000 patents. As part of 'America's Next Top Energy Innovator' challenge, companies can obtain up to three patents from a single lab for $1,000. In a year, the Energy Department will showcase the start-up

315

PV Module Reliability R&D Project Overview  

DOE Green Energy (OSTI)

The DOE Solar Energy Technologies Program includes a sub-key activity entitled ''Photovoltaic Module Reliability R&D''. This activity has been in existence for several years to help ensure that the PV technologies that advance to the commercial module stage have acceptable service lifetimes and annual performance degradation rates. The long-term (2020) goal, as stated in the Solar Program Multi-Year Technical Plan [1], is to assist industry with the development of PV systems that have 30-year service lifetimes and 1% annual performance degradation rates. The corresponding module service lifetimes and annual performance degradation rate would have to be 30 years lifetime and approximately 0.5% (or less, depending on the type of PV system) annual performance degradation. Reaching this goal is critical to achieving the PV technology Levelized Energy Cost Targets, as listed and described in the Solar Program Multi-Year Technical Plan. This paper is an overview of the Module Reliability R&D sub-key activity. More details and the major results and accomplishments are covered in the papers presented in the PV Module Reliability Session of the DOE Solar Energy Technology Review Meeting, October 25-28, 2004, in Denver, Colorado.

Hulstrom, R. L.

2005-01-01T23:59:59.000Z

316

City of San Diego RFP for Power Purchase (PV)  

NLE Websites -- All DOE Office Websites (Extended Search)

City of San Diego City of San Diego Environmental Services Department Energy Conservation and Management Division Request for Proposal For Power Purchase of Renewable Energy (Photovoltaics) For City Facilities The City of San Diego is seeking a firm, or a team of firms, to provide cost effective solar photovoltaic electric generating systems at eight City sites. The City intends to enter into power purchase agreement(s) for terms up to twenty years with solar PV developer(s) at these sites. The developers may also be asked to assist the City with identifying implementing solar PV projects at other sites depending upon the success of the initial program. The City evaluated twenty four facilities that appear to have potential of accommodating solar PV systems ranging in size from 30 kilowatts to 1

317

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

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Tucson's Solar Experience: Tucson's Solar Experience: Developing PV with RFPs and PPAs Bruce Plenk Solar Coordinator City of Tucson Office of Conservation and Sustainable Development DOE EERE- January 15, 2013 Developing PV Projects with RFPs and PPAs Tucson's Solar Investment (1999- 2008) * $960,000 cumulative solar investment with City general funds. * Over $200,000 leveraged from solar grants & utility rebates. * Bus shelter solar funded through advertising. * System size range: 3 kW- 64 kW (plus some solar hot water systems). * 220 kW total installed on 8 City sites. DOE EERE- January 15, 2013 Developing PV Projects with RFPs and PPAs Pre-RFP Decisions: site selection Plan A * Property owner selects sites; vendor determines details and

318

Progress Energy Carolinas - SunSense Residential PV Incentive Program |  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

You are here You are here Home » Progress Energy Carolinas - SunSense Residential PV Incentive Program Progress Energy Carolinas - SunSense Residential PV Incentive Program < Back Eligibility Residential Savings Category Solar Buying & Making Electricity Program Info State North Carolina Program Type Utility Rebate Program Rebate Amount Program is fully subscribed for 2013 $500 per kilowatt AC, plus a monthly bill credit of $4.50 per kW Provider Progress Energy Carolinas '''''Note: This program is budgeted to support a total of 1 MW of residential systems per year. The program is now fully subscribed for 2013. New applications will be accepted starting January 1, 2014. ''''' Progress Energy is offering incentives for their residential customers to install photovoltaics (PV) systems on their homes through their SunSense

319

Fault Current Contribution from Single-Phase PV Inverters  

DOE Green Energy (OSTI)

A significant increase in photovoltaic (PV) system installations is expected to come on line in the near future and as the penetration level of PV increases, the effect of PV may no longer be considered minimal. One of the most important attributions of additional PV is what effect this may have on protection systems. Protection engineers design protection systems to safely eliminate faults from the electric power system. One of the new technologies recently introduced into the electric power system are distributed energy resources (DER). Currently, inverter-based DER contributes very little to the power balance on all but a few utility distribution systems. As DER become prevalent in the distribution system, equipment rating capability and coordination of protection systems merit a closer investigation. A collaborative research effort between the National Renewable Energy Laboratory (NREL) and Southern California Edison (SCE) involved laboratory short-circuit testing single-phase (240 VAC) residential type (between 1.5 and 7kW) inverters. This paper will reveal test results obtained from these short-circuit tests.

Keller, J.; Kroposki, B.; Bravo, R.; Robles, S.

2011-01-01T23:59:59.000Z

320

Integration of PV modules in existing Romanian buildings  

Science Conference Proceedings (OSTI)

The paper is based on an on-going national research project focused on the promotion of new architectural concepts i.e. BIPV systems, which include active solar systems (PV generators) and solar tunnels. The advantages of using the distributed solar ...

S. Fara; D. Finta; M. Iancu; L. Fara; A. M. Dabija; E. Tulcan-Paulescu

2010-05-01T23:59:59.000Z

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


321

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

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

September 16 ESTAP Webinar: Optimizing the Benefits of a PV with September 16 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 - 12:34pm Addthis On Monday, September 16 from 1 - 2 p.m. ET, Clean Energy States Alliance will host a webinar on optimizing the benefits of a photovoltaic (PV) storage system with a battery. This webinar will be introduced by Dr. Imre Gyuk, Energy Storage Program Manager in the Office of Electricity Delivery and Energy Reliability. The webinar will discuss PNM's Prosperity Energy Storage Project, which is partly funded through DOE's Recovery Act Smart Grid Storage Demonstration Program. The project has successfully demonstrated optimizing the storage and delivery of energy using a PV with battery system. The

322

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

Science Conference Proceedings (OSTI)

As a market segment for solar photovoltaic (PV) adoption, new homes have a number of attractive attributes. Homebuyers can easily roll the cost of the PV system into their mortgage and, with rebates or other financial incentives, potentially realize an immediate net positive cash flow from the investment. PV system performance can be optimized by taking roof orientation, shading, and other structural factors into account in the design of new homes. Building-integrated photovoltaics (BIPV), which are subject to fewer aesthetic concerns than traditional, rack-mounted systems, are well-suited to new construction applications. In large new residential developments, costs can be reduced through bulk purchases and scale economies in system design and installation. Finally, the ability to install PV as a standard feature in new developments - like common household appliances - creates an opportunity to circumvent the high transaction costs and other barriers typically confronted when each individual homeowner must make a distinct PV purchase decision.

Barbose, Galen; Wiser, Ryan; Bolinger, Mark

2006-05-11T23:59:59.000Z

323

Time series power flow analysis for distribution connected PV generation.  

SciTech Connect

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.

Broderick, Robert Joseph; Quiroz, Jimmy Edward; Ellis, Abraham; Reno, Matthew J. [Georgia Institute of Technology, Atlanta, GA; Smith, Jeff [Electric Power Research Institute, Knoxville, TN; Dugan, Roger [Electric Power Research Institute, Knoxville, TN

2013-01-01T23:59:59.000Z

324

Impact of Residential PV Adoption on Retail Electricity Desmond W. H. Caia,  

E-Print Network (OSTI)

, Newport Beach, CA 92660, USA. Abstract 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 num- ber of residential households have an economic incentive to install rooftop PV systems and reduce their purchases

Low, Steven H.

325

Why Are Residential PV Prices in Germany So Much Lower Than in the United States?  

E-Print Network (OSTI)

Why Are Residential PV Prices in Germany So Much Lower Than in the United States? A Scoping ­ Project development time ­ Economies of scale in residential system size ­ Chinese module market share · Summary · Bibliography 3 #12;Motivation, Scope, and Limitations · The installed price of residential PV

326

Top500 versus sustained performance: the top problems with the top500 list - and what to do about them  

Science Conference Proceedings (OSTI)

A popular U.S. talk show host uses "top 10" lists to critique events and culture every night. Our HPC industry is captivated by another list, the TOP500 list, as a way to track HPC systems' performance based on FLOPS/S assessed by a single, long-lived ... Keywords: benchmarks, hpc, linpack, percu, performance, supercomputing, system evaluation, top500

William T.C. Kramer

2012-09-01T23:59:59.000Z

327

Shanghai JTU PV Technology Co Ltd | Open Energy Information  

Open Energy Info (EERE)

JTU PV Technology Co Ltd JTU PV Technology Co Ltd Jump to: navigation, search Name Shanghai JTU PV Technology Co Ltd Place Shanghai, Shanghai Municipality, China Zip 200240 Sector Solar Product Spun off from Shanghai Jiaotong University, the company manufactures control systems and testing equipments for solar water heaters. Coordinates 31.247709°, 121.472618° Loading map... {"minzoom":false,"mappingservice":"googlemaps3","type":"ROADMAP","zoom":14,"types":["ROADMAP","SATELLITE","HYBRID","TERRAIN"],"geoservice":"google","maxzoom":false,"width":"600px","height":"350px","centre":false,"title":"","label":"","icon":"","visitedicon":"","lines":[],"polygons":[],"circles":[],"rectangles":[],"copycoords":false,"static":false,"wmsoverlay":"","layers":[],"controls":["pan","zoom","type","scale","streetview"],"zoomstyle":"DEFAULT","typestyle":"DEFAULT","autoinfowindows":false,"kml":[],"gkml":[],"fusiontables":[],"resizable":false,"tilt":0,"kmlrezoom":false,"poi":true,"imageoverlays":[],"markercluster":false,"searchmarkers":"","locations":[{"text":"","title":"","link":null,"lat":31.247709,"lon":121.472618,"alt":0,"address":"","icon":"","group":"","inlineLabel":"","visitedicon":""}]}

328

PV cell and module performance measurement capabilities at NREL  

DOE Green Energy (OSTI)

The Photovoltaic (PV) Cell and Module Performance Characterization team at NREL supports the entire photovoltaic community by providing: secondary calibrations of photovoltaic cells and modules; efficiency measurements with respect to a given set of standard reporting conditions; verification of contract efficiency milestones; and current versus voltage (I-V) measurements under various conditions of temperature, spectral irradiance, and total irradiance. Support is also provided to in-house programs in device fabrication, module stability, module reliability, PV systems evaluations, and alternative rating methods by performing baseline testing, specialized measurements and other assistance when required. The I-V and spectral responsivity equipment used to accomplish these tasks are described in this paper.

Rummel, S.; Emery, K.; Field, H.; Moriarty, T.; Anderberg, A.; Dunlavy, D.; Ottoson, L.

1998-09-01T23:59:59.000Z

329

Outdoor PV Module Degradation of Current-Voltage Parameters: Preprint  

DOE Green Energy (OSTI)

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.

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

2012-04-01T23:59:59.000Z

330

Roof-top solar energy potential under performance-based building energy codes: The case of Spain  

Science Conference Proceedings (OSTI)

The quantification at regional level of the amount of energy (for thermal uses and for electricity) that can be generated by using solar systems in buildings is hindered by the availability of data for roof area estimation. In this note, we build on an existing geo-referenced method for determining available roof area for solar facilities in Spain to produce a quantitative picture of the likely limits of roof-top solar energy. The installation of solar hot water systems (SHWS) and photovoltaic systems (PV) is considered. After satisfying up to 70% (if possible) of the service hot water demand in every municipality, PV systems are installed in the remaining roof area. Results show that, applying this performance-based criterion, SHWS would contribute up to 1662 ktoe/y of primary energy (or 68.5% of the total thermal-energy demand for service hot water), while PV systems would provide 10 T W h/y of electricity (or 4.0% of the total electricity demand). (author)

Izquierdo, Salvador; Montanes, Carlos; Dopazo, Cesar; Fueyo, Norberto [Fluid Mechanics Group, University of Zaragoza and LITEC (CSIC), Maria de Luna 3, 50018 Zaragoza (Spain)

2011-01-15T23:59:59.000Z

331

The California Solar Initiative: Cost Trends in Customer-Sited PV  

NLE Websites -- All DOE Office Websites (Extended Search)

The California Solar Initiative: Cost Trends in Customer-Sited PV The California Solar Initiative: Cost Trends in Customer-Sited PV Installations and the Impact of Retail Rate Design on the Economics of PV Systems Speaker(s): Ryan Wiser Date: January 9, 2007 - 12:00pm Location: 90-3122 Seminar Host/Point of Contact: Anita Estner California's new solar initiative will dedicate over $3 billion of public funds to support the installation of customer-sited solar installations in the state over the next 10 years, principally in the form of residential and commercial photovoltaic (PV) systems. These efforts build from historical programs that have made California the third largest PV market in the world, behind Germany and Japan. This talk will summarize recent efforts at Berkeley Lab to advise the state's energy agencies in the design

332

Introduction of Break-Out Session at the International PV Module Quality Assurance Forum (Presentation)  

DOE Green Energy (OSTI)

This presentation outlines review requirements for quality assurance (QA) rating systems, logical design of QA systems, and specific tasks for break-out session 1 of the 2011 International PV Module Quality Assurance Forum.

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

2011-07-01T23:59:59.000Z

333

Creating dynamic equivalent PV circuit models with impedance spectroscopy for arc-fault modeling.  

Science Conference Proceedings (OSTI)

Article 690.11 in the 2011 National Electrical Code{reg_sign} (NEC{reg_sign}) requires new photovoltaic (PV) systems on or penetrating a building to include a listed arc fault protection device. Currently there is little experimental or empirical research into the behavior of the arcing frequencies through PV components despite the potential for modules and other PV components to filter or attenuate arcing signatures that could render the arc detector ineffective. To model AC arcing signal propagation along PV strings, the well-studied DC diode models were found to inadequately capture the behavior of high frequency arcing signals. Instead dynamic equivalent circuit models of PV modules were required to describe the impedance for alternating currents in modules. The nonlinearities present in PV cells resulting from irradiance, temperature, frequency, and bias voltage variations make modeling these systems challenging. Linearized dynamic equivalent circuits were created for multiple PV module manufacturers and module technologies. The equivalent resistances and capacitances for the modules were determined using impedance spectroscopy with no bias voltage and no irradiance. The equivalent circuit model was employed to evaluate modules having irradiance conditions that could not be measured directly with the instrumentation. Although there was a wide range of circuit component values, the complex impedance model does not predict filtering of arc fault frequencies in PV strings for any irradiance level. Experimental results with no irradiance agree with the model and show nearly no attenuation for 1 Hz to 100 kHz input frequencies.

Johnson, Jay Dean; Kuszmaul, Scott S.; Strauch, Jason E.; Schoenwald, David Alan

2011-06-01T23:59:59.000Z

334

Solar PV Market Update, October 2013  

Science Conference Proceedings (OSTI)

Volume 7 of EPRIs quarterly Solar PV Market Update provides continued insight into some of the front line trends that are afoot throughout the photovoltaic segment. Like previous Updates, it synthesizes primary and secondary data from multiple sources in an effort to highlight economic, policy, and technology developments that are likely to impact utility solar PV investment and planning efforts.This report investigates some of the recent PV market and policy developments that ...

2013-10-15T23:59:59.000Z

335

Benchmarking Utility Best Business Practices and Processes for Managing High Penetration PV: Case Studies and Lessons Learned  

Science Conference Proceedings (OSTI)

Distributed photovoltaic (PV) power systems are deploying into electric system distribution at increasing rates. The resulting rise in penetration of variable PV generation is, in turn, posing escalating utility grid management challenges, some more pronounced than others in specific pockets of the United States. Grid hosting studies and modeling efforts have helped to build foundational knowledge about the impacts of high penetration PV (HPPV). But, to date, there has been a relative dearth of ...

2013-12-13T23:59:59.000Z

336

Ensuring Quality of PV Modules: Preprint  

SciTech Connect

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.

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

2011-07-01T23:59:59.000Z

337

Polysilicon in Photovoltaics: Market Conditions & Competing PV ...  

Science Conference Proceedings (OSTI)

That data, along with projections regarding the growth in installed PV capacity, are used to predict demand the solar industry will place on materials used in...

338

Innovations in Wind and Solar PV Financing  

NLE Websites -- All DOE Office Websites (Extended Search)

Innovations in Wind and Solar PV Financing K. Cory, J. Coughlin, and T. Jenkin National Renewable Energy Laboratory J. Pater Summit Blue B. Swezey Applied Materials Technical...

339

Low Cost Nanomaterials for PV Devices  

Impact: Low-cost solution for solar energy (Expand to lighting, batteries, etc) Low-cost Nanomaterials for PV Devices . Title: Slide 1 Author: Donna ...

340

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

Science Conference Proceedings (OSTI)

In the U.S., the increasing financial support for customer-sited photovoltaic (PV) systems provided through publicly-funded incentive programs has heightened concerns about the long-term performance of these systems. Given the barriers that customers face to ensuring that their PV systems perform well, and the responsibility that PV incentive programs bear to ensure that public funds are prudently spent, these programs should, and often do, play a critical role in addressing PV system performance. To provide a point of reference for assessing the current state of the art, and to inform program design efforts going forward, we examine the approaches to encouraging PV system performance used by 32 prominent PV incentive programs in the U.S. We identify eight general strategies or groups of related strategies that these programs have used to address factors that affect performance, and describe key implementation details. Based on this review, we then offer recommendations for how PV incentive programs can be effectively designed to mitigate potential performance issues.

Barbose, Galen; Wiser, Ryan; Bolinger, Mark

2006-10-06T23:59:59.000Z

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


341

AEP Texas North Company - SMART Source Solar PV Rebate Program | Department  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

North Company - SMART Source Solar PV Rebate Program North Company - SMART Source Solar PV Rebate Program AEP Texas North Company - SMART Source Solar PV Rebate Program < Back Eligibility Agricultural Commercial Fed. Government Industrial Institutional Local Government Multi-Family Residential Nonprofit Residential Schools State Government Tribal Government Savings Category Solar Buying & Making Electricity Maximum Rebate Residential: $15,000 Non-residential: $30,000 Program Info Start Date 08/01/2009 State Texas Program Type Utility Rebate Program Rebate Amount Residential: $1.50/watt DC Non-residential: $1.20/watt DC Provider Smart Source PV Program American Electric Power Texas North Company (AEP-TNC) offers rebates to customers that install photovoltaic (PV) systems on homes or other buildings. Customers of all rate classes (e.g., residential, commercial)

342

Online fault detection and tolerance for photovoltaic energy harvesting systems  

Science Conference Proceedings (OSTI)

Photovoltaic energy harvesting systems (PV systems) are subject to PV cell faults, which decrease the efficiency of PV systems and even shorten the PV system lifespan. Manual PV cell fault detection and elimination are expensive and nearly impossible ... Keywords: fault detection, fault tolerance, photovoltaic panel reconfiguration, photovoltaic system

Xue Lin; Yanzhi Wang; Di Zhu; Naehyuck Chang; Massoud Pedram

2012-11-01T23:59:59.000Z

343

Future of Grid-Tied PV Business Models: What Will Happen When PV Penetration on the Distribution Grid is Significant? Preprint  

DOE Green Energy (OSTI)

Eventually, distributed PV will become a more significant part of the generation mix. When this happens, it is expected that utilities will have to take on a more active role in the placement, operation and control of these systems. There are operational complexities and concerns of revenue erosion that will drive utilities into greater involvement of distributed PV and will create new business models. This report summarizes work done by Navigant Consulting Inc. for the National Renewable Energy Laboratory as part of the Department of Energy's work on Renewable System Integration. The objective of the work was to better understand the structure of these future business models and the research, development and demonstration (RD&D) required to support their deployment. This report describes potential future PV business models in terms of combinations of utility ownership and control of the PV assets, and the various relationships between end-users and third-party owners.

Graham, S.; Katofsky, R.; Frantzis, L.; Sawyer, H.; Margolis, R.

2008-05-01T23:59:59.000Z

344

PV Testing Group Photovoltaic Cell Data Compilation  

E-Print Network (OSTI)

PV Testing Group Photovoltaic Cell Data Compilation National Renewable Energy Laboratory 4/2/2010 ______________________________________ Page 1 *NREL Photovoltaic Cell Data Compilation Calibration Conducted For: Kaitlyn VanSant (for Solasta Contact: Paul Ciszek (303) 384-6647 Paul.Ciszek@nrel.gov #12;PV Testing Group Photovoltaic Cell Data

Burns, Michael J.

345

Validation of PV performance models using satellite-based irradiance measurements : a case study.  

DOE Green Energy (OSTI)

Photovoltaic (PV) system performance models are relied upon to provide accurate predictions of energy production for proposed and existing PV systems under a wide variety of environmental conditions. Ground based meteorological measurements are only available from a relatively small number of locations. In contrast, satellite-based radiation and weather data (e.g., SUNY database) are becoming increasingly available for most locations in North America, Europe, and Asia on a 10 x 10 km grid or better. This paper presents a study of how PV performance model results are affected when satellite-based weather data is used in place of ground-based measurements.

Stein, Joshua S.; Parkins, Andrew (Clean Power Research); Perez, Richard (University at Albany)

2010-05-01T23:59:59.000Z

346

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

SciTech Connect

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). With the signing of the Energy Policy Act of 2005 (EPAct) on August 8, the federal government is poised to play a much more significant future 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, and--absent an extension (for which the solar industry has already begun lobbying)--will last for a period of two years: the new residential ITC will expire, and the 30% commercial ITC will revert back to 10%, on January 1, 2008. 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. 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.

Bolinger, Mark; Wiser, Ryan; Ing, Edwin

2006-03-28T23:59:59.000Z

347

PV FAQs: Does the world have enough materials for PV to help address climate change?  

DOE Green Energy (OSTI)

In the ongoing discussion of what needs to be done to stabilize atmospheric CO2 by mid-century (Hoffert 1998), one possible option would be to add about 10-20 terawatts (trillion watts, or TW) of photovoltaics (PV) in place of conventional sources. PV would help because, unlike burning fossil fuels, it produces no CO2. However, 10-20 TW is an enormous amount of energy. In peak Watts, the way PV installations are generally rated, it is about 50-100 TWpeak (TWp) of PV. Would we have enough materials to make this much PV? As we explain in this PV FAQ, we think our planet has enough feedstock materials for PV to meet the ''TW challenge.''

Not Available

2005-06-01T23:59:59.000Z

348

PV Strom | Open Energy Information  

Open Energy Info (EERE)

Strom Strom Jump to: navigation, search Name PV Strom Place Kirchheim, Germany Zip 74366 Sector Biomass, Hydro, Renewable Energy, Solar, Wind energy Product Germany-based renewable energy project developer, focused mainly on solar, but also active in wind, hydro and biomass generation. Coordinates 50.881988°, 11.019413° Loading map... {"minzoom":false,"mappingservice":"googlemaps3","type":"ROADMAP","zoom":14,"types":["ROADMAP","SATELLITE","HYBRID","TERRAIN"],"geoservice":"google","maxzoom":false,"width":"600px","height":"350px","centre":false,"title":"","label":"","icon":"","visitedicon":"","lines":[],"polygons":[],"circles":[],"rectangles":[],"copycoords":false,"static":false,"wmsoverlay":"","layers":[],"controls":["pan","zoom","type","scale","streetview"],"zoomstyle":"DEFAULT","typestyle":"DEFAULT","autoinfowindows":false,"kml":[],"gkml":[],"fusiontables":[],"resizable":false,"tilt":0,"kmlrezoom":false,"poi":true,"imageoverlays":[],"markercluster":false,"searchmarkers":"","locations":[{"text":"","title":"","link":null,"lat":50.881988,"lon":11.019413,"alt":0,"address":"","icon":"","group":"","inlineLabel":"","visitedicon":""}]}

349

Improving grid reliability through integration of distributed PV and energy storage  

Science Conference Proceedings (OSTI)

Several emerging technologies, namely, high penetration grid-connected distributed photovoltaics (PV), energy storage, and smart grid have seen tremendous growth in recent years. Because of their interconnected nature, the deployed systems are fairly ...

Guohui Yuan

2012-01-01T23:59:59.000Z

350

Turlock Irrigation District - PV Rebate | Department of Energy  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Turlock Irrigation District - PV Rebate Turlock Irrigation District - PV Rebate Eligibility Commercial Residential Savings For Solar Buying & Making Electricity Maximum Rebate 50%...

351

Beijing Sunpu Solar PV Technology Co Ltd | Open Energy Information  

Open Energy Info (EERE)

Sunpu Solar PV Technology Co Ltd Jump to: navigation, search Name Beijing Sunpu Solar PV Technology Co Ltd Place Beijing, Beijing Municipality, China Zip 100083 Sector Solar...

352

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

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

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)...

353

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

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Assn. of Governments - PV and Solar Domestic Water Heating Permitting Standards Maricopa Assn. of Governments - PV and Solar Domestic Water Heating Permitting Standards Eligibility...

354

Arima Photovoltaic And Optical Corp Arima PV | Open Energy Information  

Open Energy Info (EERE)

Photovoltaic And Optical Corp Arima PV Jump to: navigation, search Name Arima Photovoltaic And Optical Corp (Arima PV) Place Taipei, Taiwan Product Once a maker of computers, the...

355

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

NLE Websites -- All DOE Office Websites (Extended Search)

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

356

New York City - Property Tax Abatement for Photovoltaic (PV)...  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Property Tax Abatement for Photovoltaic (PV) Equipment Expenditures New York City - Property Tax Abatement for Photovoltaic (PV) Equipment Expenditures Eligibility Commercial...

357

CPS Energy - Solar PV Rebate Program | Department of Energy  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Sites Power Marketing Administration Other Agencies You are here Home Savings CPS Energy - Solar PV Rebate Program CPS Energy - Solar PV Rebate Program Eligibility...

358

ESS 2012 Peer Review - PV Plus Storage for Simultaneous Voltage...  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Meter *Advancing Automation and Sophistication Firmed PV Production *Automated cloud forecast retrieval A t t d PV Automated Shifting - 612 Summer Schedule (Afternoon Peak)...

359

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

DOE Green Energy (OSTI)

Installations of PV systems have been expanding at a rapid pace in recent years. In the United States, the market for PV is driven by national, state, and local government incentives, including upfront cash rebates, production-based incentives, requirements that electricity suppliers purchase a certain amount of solar energy, and Federal and state tax benefits. These programs are, in part, motivated by the popular appeal of solar energy and by the positive attributes of PV - e.g., modest environmental impacts, avoidance of fuel price risks, coincidence with peak electrical demand, and the location of PV at the point of use. Given the relatively high cost of PV, however, a key goal of these policies is to encourage cost reductions over time. Therefore, as policy incentives have become more significant and as PV deployment has accelerated, so too has the desire to track the installed cost of PV systems over time, by system characteristics, by system location, and by component. A new Lawrence Berkeley National Laboratory report, 'Tracking the Sun: The Installed Cost of Photovoltaics in the U.S. from 1998-2007', helps to fill this need by summarizing trends in the installed cost (i.e., the cost paid by the system owner) of grid-connected PV systems in the U.S. The report is based on an analysis of project-level cost data from nearly 37,000 residential and non-residential PV systems completed from 1998-2007 and installed on the utility-customer-side of the meter. These systems total 363 MW, equal to 76% of all grid-connected PV capacity installed in the U.S. through 2007, representing the most comprehensive data source available on the installed cost of PV in the United States. The data were obtained from administrators of PV incentive programs around the country, who typically collect installed cost data for systems receiving incentives. A total of 16 programs, spanning 12 states, ultimately provided data for the study. Reflecting the broader geographical trends in the U.S. PV market, the vast majority of the systems in the data sample are located in California (83%, by capacity) and New Jersey (12%), The remaining systems are located in Arizona, Connecticut, Illinois, Massachusetts, Maryland, Minnesota, New York, Oregon, Pennsylvania, and Wisconsin. The PV systems in the dataset range in size from 100 W to 1.3 MW, almost 90% of which are smaller than 10 kW. This article briefly summarizes some of the key findings from the Berkeley Lab study (the full report can be downloaded at http://eetd.lbl.gov/ea/emp/re-pubs.html). The article begins by summarizing trends related to the installed cost of PV systems prior to receipt of any financial incentives, and then discusses how changes in incentive levels over time and variation across states have impacted the net installed cost of PV to the customer, after receipt of incentives. Note that all cost and incentive data are presented in real 2007 dollars (2007$), and all capacity and dollars-perwatt ($/W) data are presented in terms of rated module power output under Standard Test Conditions (DC-STC).

Barbose, Galen; Peterman, Carla; Wiser, Ryan

2009-04-15T23:59:59.000Z

360

Stochastic PV performance/reliability model : preview of alpha version.  

DOE Green Energy (OSTI)

Problem Statement: (1) Uncertainties in PV system performance and reliability impact business decisions - Project cost and financing estimates, Pricing service contracts and guarantees, Developing deployment and O&M strategies; (2) Understanding and reducing these uncertainties will help make the PV industry more competitive (3) Performance has typically been estimated without much attention to reliability of components; and (4) Tools are needed to assess all inputs to the value proposition (e.g., LCOE, cash flow, reputation, etc.). Goals and objectives are: (1) Develop a stochastic simulation model (in GoldSim) that can represent PV system performance as a function of system design, weather, reliability, and O&M policies; (2) Evaluate performance for an example system to quantify sources of uncertainty and identify dominant parameters via a sensitivity study; and (3) Example System - 1 inverter, 225 kW DC Array latitude tilt (90 strings of 12 modules {l_brace}1080 modules{r_brace}), Weather from Tucumcari, NM (TMY2 with annual uncertainty).

Stein, Joshua S.; Miller, Steven P.

2010-03-01T23:59:59.000Z

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


361

City of Gridley Utilities - PV Buy Down Program | Department of Energy  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Gridley Utilities - PV Buy Down Program Gridley Utilities - PV Buy Down Program City of Gridley Utilities - PV Buy Down Program < Back Eligibility Commercial Residential Savings Category Solar Buying & Making Electricity Maximum Rebate Program is currently on hold Program Info State California Program Type Utility Rebate Program Rebate Amount Program is currently on hold Provider City of Gridley Utilities '''''Funding for this program is currently exhausted. The summary below describes incentives as they were in 2010 and 2011. Incentive levels for the next funding round are still unknown.''''' City of Gridley is providing rebates of $2.80/W for their customers installing PV systems. Individual rebates are limited to $5,600 per system, and the utility will award a total of $41,700 in rebates per year. Systems

362

Why Are Residential PV Prices in Germany So Much Lower Than in the United  

NLE Websites -- All DOE Office Websites (Extended Search)

Why Are Residential PV Prices in Germany So Much Lower Than in the United Why Are Residential PV Prices in Germany So Much Lower Than in the United States? Speaker(s): Joachim Seel Date: April 11, 2013 - 12:00pm Location: 90-3122 Seminar Host/Point of Contact: Ryan Wiser The installed price of residential PV is significantly lower in Germany than in the United States - in Q3 2012 German systems were priced on average at $2.50/W while U.S. systems were priced nearly twice as high around $5.20/W. These pricing differences accumulate to about $13,500 for a 5kW residential system and stem primarily from differences in "soft" costs, but little detail is known about how soft cost components differ between the two countries, or why. In order to better characterize the nature of these differences, LBNL fielded surveys of German PV installers,

363

Terawatt Challenge for Thin-Film PV  

DOE Green Energy (OSTI)

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.

Zweibel, K.

2005-08-01T23:59:59.000Z

364

Top quark physics  

Science Conference Proceedings (OSTI)

The top quark, when it was finally discovered at Fermilab in 1995 completed the three-generation structure of the Standard Model (SM) and opened up the new field of top quark physics. Viewed as just another SM quark, the top quark appears to be a rather uninteresting species. Produced predominantly, in hadron-hadron collisions, through strong interactions, it decays rapidly without forming hadrons, and almost exclusively through the single mode t {r_arrow} Wb. The relevant CKM coupling V{sub tb} is already determined by the (three-generation) unitarity of the CKM matrix. Rare decays and CP violation are unmeasurable small in the SM. Yet the top quark is distinguished by its large mass, about 35 times larger than the mass of the next heavy quark, and intriguingly close to the scale of electroweak (EW) symmetry breaking. This unique property raises a number of interesting questions. Is the top quark mass generated by the Higgs mechanism as the SM predicts and is its mass related to the top-Higgs-Yukawa coupling? Or does it play an even more fundamental role in the EW symmetry breaking mechanism? If there are new particles lighter than the top quark, does the top quark decay into them? Could non-SM physics first manifest itself in non-standard couplings of the top quark which show up as anomalies in top quark production and decays? Top quark physics tries to answer these questions. Several properties of the top quark have already been examined at the Tevatron. These include studies of the kinematical properties of top production, the measurements of the top mass, of the top production cross-section, the reconstruction of t{bar t}pairs in the fully hadronic final states, the study of {tau} decays of the top quark, the reconstruction of hadronic decays of the W boson from top decays, the search for flavor changing neutral current decays, the measurement of the W helicity in top decays, and bounds on t{bar t} spin correlations. Most of these measurements are limited by the small sample of top quarks collected at the Tevatron up to now. The LHC is, in comparison, a top factory, producing about 8 million t{bar t}pairs per experiment per year at low luminosity (10 fb{sup {minus}1}/year), and another few million (anti-)tops in EW single (anti-)top quark production. They therefore expect that top quark properties can be examined with significant precision at the LHC. Entirely new measurements can be contemplated on the basis of the large available statistics.

Ahmadov, A.; Azuelos, G.; Bauer, U.; Belyaev, A.; Berger, E. L.; Sullivan, Z.; Tait, T. M. P.

2000-03-24T23:59:59.000Z

365

Top Quark Activitiy Introduction  

NLE Websites -- All DOE Office Websites (Extended Search)

Usa la conservacin del momento lineal para calcular la masa del quark top a partir de datos de D Los datos del quark top al alcance de los estudiantes. Para profesores -...

366

Top Quark Activitiy Introduction  

NLE Websites -- All DOE Office Websites (Extended Search)

of Momentum to Calculate the Mass of the Top Quark from D-Zero Data Making top quark data accessible to students. Ed Home - Data Home - Teacher Page - Student Activity Page -...

367

Jiangxi Solar PV Corp JSPV aka Solar PV Corporation | Open Energy  

Open Energy Info (EERE)

Solar PV Corp JSPV aka Solar PV Corporation Solar PV Corp JSPV aka Solar PV Corporation Jump to: navigation, search Name Jiangxi Solar PV Corp (JSPV, aka Solar PV Corporation ) Place Xinyu, Jiangxi Province, China Zip 338004 Sector Solar Product Xinyu-based producer of solar cells Coordinates 27.804001°, 114.923317° Loading map... {"minzoom":false,"mappingservice":"googlemaps3","type":"ROADMAP","zoom":14,"types":["ROADMAP","SATELLITE","HYBRID","TERRAIN"],"geoservice":"google","maxzoom":false,"width":"600px","height":"350px","centre":false,"title":"","label":"","icon":"","visitedicon":"","lines":[],"polygons":[],"circles":[],"rectangles":[],"copycoords":false,"static":false,"wmsoverlay":"","layers":[],"controls":["pan","zoom","type","scale","streetview"],"zoomstyle":"DEFAULT","typestyle":"DEFAULT","autoinfowindows":false,"kml":[],"gkml":[],"fusiontables":[],"resizable":false,"tilt":0,"kmlrezoom":false,"poi":true,"imageoverlays":[],"markercluster":false,"searchmarkers":"","locations":[{"text":"","title":"","link":null,"lat":27.804001,"lon":114.923317,"alt":0,"address":"","icon":"","group":"","inlineLabel":"","visitedicon":""}]}

368

MTS Table Top Load frame  

NLE Websites -- All DOE Office Websites (Extended Search)

MTS Table Top Load frame MTS Table Top Load frame The Non-destructive Evaluation group operates an MTS Table Top Load frame for ultimate strength and life cycle testing of various ceramic, ceramic-matrix (FGI), carbon, carbon fiber, cermet (CMC) and metal alloy engineering samples. The load frame is a servo-hydraulic type designed to function in a closed loop configuration under computer control. The system can perform non-cyclic, tension, compression and flexure testing and cyclic fatigue tests. The system is comprised of two parts: * The Load Frame and * The Control System. Load Frame The Load Frame (figure 1) is a cross-head assembly which includes a single moving grip, a stationary grip and LVDT position sensor. It can generate up to 25 kN (5.5 kip) of force in the sample under test and can

369

NanoPV Corporation | Open Energy Information  

Open Energy Info (EERE)

NanoPV Corporation NanoPV Corporation Jump to: navigation, search Name NanoPV Corporation Place Ewing, New Jersey Zip 8618 Product A New Jersey-based thin film PV cell producer and technology provider. Coordinates 36.638474°, -83.428453° Loading map... {"minzoom":false,"mappingservice":"googlemaps3","type":"ROADMAP","zoom":14,"types":["ROADMAP","SATELLITE","HYBRID","TERRAIN"],"geoservice":"google","maxzoom":false,"width":"600px","height":"350px","centre":false,"title":"","label":"","icon":"","visitedicon":"","lines":[],"polygons":[],"circles":[],"rectangles":[],"copycoords":false,"static":false,"wmsoverlay":"","layers":[],"controls":["pan","zoom","type","scale","streetview"],"zoomstyle":"DEFAULT","typestyle":"DEFAULT","autoinfowindows":false,"kml":[],"gkml":[],"fusiontables":[],"resizable":false,"tilt":0,"kmlrezoom":false,"poi":true,"imageoverlays":[],"markercluster":false,"searchmarkers":"","locations":[{"text":"","title":"","link":null,"lat":36.638474,"lon":-83.428453,"alt":0,"address":"","icon":"","group":"","inlineLabel":"","visitedicon":""}]}

370

Generation PV Inc | Open Energy Information  

Open Energy Info (EERE)

Generation PV Inc. Generation PV Inc. Place Markham, Ontario, Canada Zip L6E 1A9 Sector Wind energy Product Ontario-based Generation PV distributes and installs PV modules and wind turbines made by outside equipment makers, for industrial, residental and wholesale customers. Coordinates 38.9028°, -78.001804° Loading map... {"minzoom":false,"mappingservice":"googlemaps3","type":"ROADMAP","zoom":14,"types":["ROADMAP","SATELLITE","HYBRID","TERRAIN"],"geoservice":"google","maxzoom":false,"width":"600px","height":"350px","centre":false,"title":"","label":"","icon":"","visitedicon":"","lines":[],"polygons":[],"circles":[],"rectangles":[],"copycoords":false,"static":false,"wmsoverlay":"","layers":[],"controls":["pan","zoom","type","scale","streetview"],"zoomstyle":"DEFAULT","typestyle":"DEFAULT","autoinfowindows":false,"kml":[],"gkml":[],"fusiontables":[],"resizable":false,"tilt":0,"kmlrezoom":false,"poi":true,"imageoverlays":[],"markercluster":false,"searchmarkers":"","locations":[{"text":"","title":"","link":null,"lat":38.9028,"lon":-78.001804,"alt":0,"address":"","icon":"","group":"","inlineLabel":"","visitedicon":""}]}

371

pv land use | OpenEI Community  

Open Energy Info (EERE)

pv land use pv land use Home Rosborne318's picture Submitted by Rosborne318(5) Member 2 December, 2013 - 11:06 Request for Information Renewable Energy Generation/Production Shreveport Airport Authority - Response Deadline 2 January 2014 pv land use Solar solar land use Solar Power The Shreveport Airport Authority intends to issue a Request for Proposal (RFP) at some future time for renewable energy generation opportunities on Shreveport Airport property. Files: application/pdf icon solar_rfi_complete.pdf Sfomail's picture Submitted by Sfomail(48) Member 25 June, 2013 - 12:10 Solar Land Use Data on OpenEI acres csp land use how much land land requirements pv land use solar land use square miles I'm happy to announce that a new report on Solar+Land+Use was just released by the National+Renewable+Energy+Laboratory. You can find a brief summary

372

PV1 model verification and validation  

E-Print Network (OSTI)

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 ...

Fuller, Frank H.

1981-01-01T23:59:59.000Z

373

PV Power Plants Conference USA 2012  

Energy.gov (U.S. Department of Energy (DOE))

The 4th PV Power Plants conference will cover relevant topics for successful project development and sustainable business. This year's event will have an additional focus on certain distributed...

374

China PV Business and Applications Evaluation  

DOE Green Energy (OSTI)

This report provides an overview of photovoltaics (PV) business and applications in China. Although more than 70 million people in China are without access to grid electricity, many of the unelectrified regions benefit from considerable renewable resources, including good solar insolation. Current annual PV sales are still modest, however, and are estimated to be between 2.0 and 2.5 megawatts. This and other significant PV data, including information regarding the current status of key aspects of Chinese businesses, markets, and distribution channels, are included in the report. Detailed company profiles of Chinese business organizations and summaries of visits made to these companies (as well as to more remote sites in Inner Mongolia to examine PV usage by the end-use customer) in September-October 1998 are also presented.

Sherring, Chris (Sherring Energy Associates)

1999-08-30T23:59:59.000Z

375

PV Module Reliability Research (Fact Sheet)  

DOE Green Energy (OSTI)

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.

Not Available

2013-06-01T23:59:59.000Z

376

CDF Top Physics  

DOE R&D Accomplishments (OSTI)

The authors present the latest results about top physics obtained by the CDF experiment at the Fermilab Tevatron collider. The data sample used for these analysis (about 110 pb{sup{minus}1}) represents almost the entire statistics collected by CDF during four years (1992--95) of data taking. This large data size has allowed detailed studies of top production and decay properties. The results discussed here include the determination of the top quark mass, the measurement of the production cross section, the study of the kinematics of the top events and a look at top decays.

Tartarelli, G. F.; CDF Collaboration

1996-05-00T23:59:59.000Z

377

Stochastic Analysis to Determine Feeder Hosting Capacity for Distributed Solar PV  

Science Conference Proceedings (OSTI)

Distributed solar photovoltaic (PV) generation has begun to impact distribution systems. The impact is unique to individual distribution feeders and is based on certain or all issues ranging from voltage, loading, power quality, protection, and control. The impact distributed PV will have on a specific distribution feeder can only be determined with knowledge of that feeders characteristics. These characteristics include but are not limited to load, voltage, regulation, and ...

2012-12-31T23:59:59.000Z

378

Top Innovations 2012 | Department of Energy  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Top Innovations 2012 Top Innovations 2012 Top Innovations 2012 On this page, you will find Building America's Top Innovations from 1995 through 2012, with links to a profile describing each innovation. Note that some categories may not have a top innovation each year. Flow chart graphic 1. Advanced Technologies and Practices Top Innovations in this category cover research in thermal enclosure improvements, HVAC components, ventilation and other health and safety issues. 1.1 Building Science Solutions Thermal Enclosure: Basement Insulation Systems Advanced Framing Systems and Packages Unvented, Conditioned Attics Unvented, Conditioned Crawlspaces High-R Walls Heating, Ventilation, and Air Conditioning: Integration of HVAC System Design with Simplified Duct Distribution Ducts in Conditioned Space

379

Angular Distribution Models for Top-of-Atmosphere Radiative Flux Estimation from the Clouds and the Earth's Radiant Energy System Instrument on the Tropical Rainfall Measuring Mission Satellite. Part II: Validation  

Science Conference Proceedings (OSTI)

Top-of-atmosphere (TOA) radiative fluxes from the Clouds and the Earth's Radiant Energy System (CERES) are estimated from empirical angular distribution models (ADMs) that convert instantaneous radiance measurements to TOA fluxes. This paper ...

Norman G. Loeb; Konstantin Loukachine; Natividad Manalo-Smith; Bruce A. Wielicki; David F. Young

2003-12-01T23:59:59.000Z

380

Angular Distribution Models for Top-of-Atmosphere Radiative Flux Estimation from the Clouds and the Earths Radiant Energy System Instrument on the Terra Satellite. Part II: Validation  

Science Conference Proceedings (OSTI)

Errors in top-of-atmosphere (TOA) radiative fluxes from the Clouds and the Earths Radiant Energy System (CERES) instrument due to uncertainties in radiance-to-flux conversion from CERES Terra angular distribution models (ADMs) are evaluated ...

Norman G. Loeb; Seiji Kato; Konstantin Loukachine; Natividad Manalo-Smith; David R. Doelling

2007-04-01T23:59:59.000Z

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


381

Energy Basics: Flat-Plate Photovoltaic Balance of System  

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

Balance of System Complete photovoltaic (PV) energy systems are composed of three subsystems. On the power-generation side, the first subsystem of PV devices (cells, modules, and...

382

City of Shasta Lake Electric Utility - PV Rebate Program | Department of  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

City of Shasta Lake Electric Utility - PV Rebate Program City of Shasta Lake Electric Utility - PV Rebate Program City of Shasta Lake Electric Utility - PV Rebate Program < Back Eligibility Commercial Residential Savings Category Solar Buying & Making Electricity Maximum Rebate Residential: $9,050 Commercial: $192,000 Program Info State California Program Type Utility Rebate Program Rebate Amount Residential: $1.81/W Commercial: $1.92/W Provider City of Shasta Lake Electric Utility '''''Note: This program is currently not accepting applications. Check the program web site for information regarding future solicitations. ''''' 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. For fiscal year

383

An Analysis of the Effects of Photovoltaic Energy Systems on Residential Selling Prices in California.  

E-Print Network (OSTI)

Effects of Residential Photovoltaic Energy Systems on Homewith existing photovoltaic (PV) energy systems have sold ingrid-connected solar photovoltaic (PV) energy systems were

Cappers, Peter

2012-01-01T23:59:59.000Z

384

Global PV Grid Parity Global PV grid parity and market potential  

Open Energy Info (EERE)

Global PV Grid Parity Global PV grid parity and market potential. Data is courtesy of Sean Ong.
2012-04-13T20:55:49Z 2012-06-06T21:02:36Z I am submitting data from...

385

Top 10 Energy Efficiency Opportunities  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Top 10 Energy Efficiency Top 10 Energy Efficiency Opportunities Federal Utility Partnership Working Group San Francisco, 5/22/2013 Siva Sethuraman Customer Energy Solutions PG&E 2 Whole Building A comprehensive, performance-based approach to achieving 15+% energy savings in existing commercial buildings - quantification of energy use baselines and estimate savings at the whole building level leveraging the power of interval meter data. Behavioral Operational Retrofit Types of Energy Savings * Simplified, integrated offering * Bigger incentives tied to performance * Flexibility to pursue a range of measures overtime * Transparent and credible bill savings Baseline Analytics, Examples 3 Small Commercial EMS * Energy management system (EMS) products that offer integrated

386

PVT -- A photovoltaic/thermal concentrator total energy system: Final phase 1 project report. Building opportunities in the U.S. for photovoltaics (PV:BONUS) Two  

DOE Green Energy (OSTI)

United Solar completed its Phase 1 report and its proposal for Phase 2 of the PVBONUS Two program at the end of March 1998. At the same time, it also completed and submitted a proposal to the California Energy Commission PIER program for additional funding to cost-share development and testing of a pre-production model of the PVT-14. It was unsuccessful in both of these proposed efforts. While waiting for the proposal decisions, work continued in April and May to analyze the system design and component decisions described below. This document is a final summation report on the Phase 1 effort of the PVBONUS Two program that describes the key technical issues that United Solar and its subcontractor, Industrial Solar Technology Corporation, worked on in preparation of a Phase 2 award. The decisions described were ones that will guide the design and fabrication of a pre-production prototype of a 1500:1 mirrored concentrator with gallium arsenide cells when United solar resumes its development work. The material below is organized by citing the key components that underwent a design review, what the company considered, what was decided, the name of the expected supplier, if not to be produced in-house, and some information about expected costs. The cost figures given are usually budgetary estimates, not the result of firm quotations or extensive analysis.

NONE

1998-12-31T23:59:59.000Z

387

PNM - Performance-Based Solar PV Program | Department of Energy  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

PNM - Performance-Based Solar PV Program PNM - Performance-Based Solar PV Program PNM - Performance-Based Solar PV Program < Back Eligibility Commercial Residential Savings Category Solar Buying & Making Electricity Maximum Rebate None specified Program Info Start Date 3/1/2006 State New Mexico Program Type Performance-Based Incentive Rebate Amount ''These prices will step down over time as certain MW goals are met Prices below are current as of 09/19/2012; see program website for current prices'' Systems up to 10 kW: $0.04/kWh for RECs >10 kW up to 100 kW: $0.05/kWh for RECs >100 kW up to 1 MW: $0.02/kWh for RECs 1 MW+: Fully subscribed Provider PNM In March 2006, PNM initiated a renewable energy credit (REC) purchase program as part of its plan to comply with [http://www.dsireusa.org/library/includes/incentive2.cfm?Incentive_Code=N...

388

The Open PV Project | Open Energy Information  

Open Energy Info (EERE)

The Open PV Project The Open PV Project (Redirected from OpenPV) Jump to: navigation, search Tool Summary LAUNCH TOOL Name: The Open PV Project Agency/Company /Organization: NREL Sector: Energy Focus Area: Solar, - Solar PV Topics: Background analysis, Market analysis Resource Type: Dataset, Online calculator, Software/modeling tools User Interface: Website Website: openpv.nrel.gov/about Country: United States Web Application Link: openpv.nrel.gov/ Cost: Free OpenEI Keyword(s): Featured UN Region: Northern America Coordinates: 37.09024°, -95.712891° Loading map... {"minzoom":false,"mappingservice":"googlemaps3","type":"ROADMAP","zoom":14,"types":["ROADMAP","SATELLITE","HYBRID","TERRAIN"],"geoservice":"google","maxzoom":false,"width":"600px","height":"350px","centre":false,"title":"","label":"","icon":"","visitedicon":"","lines":[],"polygons":[],"circles":[],"rectangles":[],"copycoords":false,"static":false,"wmsoverlay":"","layers":[],"controls":["pan","zoom","type","scale","streetview"],"zoomstyle":"DEFAULT","typestyle":"DEFAULT","autoinfowindows":false,"kml":[],"gkml":[],"fusiontables":[],"resizable":false,"tilt":0,"kmlrezoom":false,"poi":true,"imageoverlays":[],"markercluster":false,"searchmarkers":"","locations":[{"text":"","title":"","link":null,"lat":37.09024,"lon":-95.712891,"alt":0,"address":"","icon":"","group":"","inlineLabel":"","visitedicon":""}]}

389

Teksun PV Manufacturing Inc | Open Energy Information  

Open Energy Info (EERE)

Teksun PV Manufacturing Inc Teksun PV Manufacturing Inc Jump to: navigation, search Logo: Teksun PV Manufacturing Inc Name Teksun PV Manufacturing Inc Address 401 Congress Ave Place Austin, Texas Zip 78701 Sector Solar Product Plan to manufacture large scale PV panels for utility scale solar power parks Website http://www.teksunpv.com/ Coordinates 30.266402°, -97.742959° Loading map... {"minzoom":false,"mappingservice":"googlemaps3","type":"ROADMAP","zoom":14,"types":["ROADMAP","SATELLITE","HYBRID","TERRAIN"],"geoservice":"google","maxzoom":false,"width":"600px","height":"350px","centre":false,"title":"","label":"","icon":"","visitedicon":"","lines":[],"polygons":[],"circles":[],"rectangles":[],"copycoords":false,"static":false,"wmsoverlay":"","layers":[],"controls":["pan","zoom","type","scale","streetview"],"zoomstyle":"DEFAULT","typestyle":"DEFAULT","autoinfowindows":false,"kml":[],"gkml":[],"fusiontables":[],"resizable":false,"tilt":0,"kmlrezoom":false,"poi":true,"imageoverlays":[],"markercluster":false,"searchmarkers":"","locations":[{"text":"","title":"","link":null,"lat":30.266402,"lon":-97.742959,"alt":0,"address":"","icon":"","group":"","inlineLabel":"","visitedicon":""}]}

390

The Open PV Project | Open Energy Information  

Open Energy Info (EERE)

The Open PV Project The Open PV Project (Redirected from Open PV) Jump to: navigation, search Tool Summary LAUNCH TOOL Name: The Open PV Project Agency/Company /Organization: NREL Sector: Energy Focus Area: Solar, - Solar PV Topics: Background analysis, Market analysis Resource Type: Dataset, Online calculator, Software/modeling tools User Interface: Website Website: openpv.nrel.gov/about Country: United States Web Application Link: openpv.nrel.gov/ Cost: Free OpenEI Keyword(s): Featured UN Region: Northern America Coordinates: 37.09024°, -95.712891° Loading map... {"minzoom":false,"mappingservice":"googlemaps3","type":"ROADMAP","zoom":14,"types":["ROADMAP","SATELLITE","HYBRID","TERRAIN"],"geoservice":"google","maxzoom":false,"width":"600px","height":"350px","centre":false,"title":"","label":"","icon":"","visitedicon":"","lines":[],"polygons":[],"circles":[],"rectangles":[],"copycoords":false,"static":false,"wmsoverlay":"","layers":[],"controls":["pan","zoom","type","scale","streetview"],"zoomstyle":"DEFAULT","typestyle":"DEFAULT","autoinfowindows":false,"kml":[],"gkml":[],"fusiontables":[],"resizable":false,"tilt":0,"kmlrezoom":false,"poi":true,"imageoverlays":[],"markercluster":false,"searchmarkers":"","locations":[{"text":"","title":"","link":null,"lat":37.09024,"lon":-95.712891,"alt":0,"address":"","icon":"","group":"","inlineLabel":"","visitedicon":""}]}

391

Top Physics at CDF  

Science Conference Proceedings (OSTI)

We present the recent results of top-quark physics using up to 6 fb{sup -1} of p{bar p} collisions at a center of mass energy of {radical}s = 1.96 TeV analyzed by the CDF collaboration. Thanks to this large data sample, precision top quark measurements are now a reality at the Tevatron. Further, several new physics signals could appear in this large dataset. We will present the latest measurements of top quark intrinsic properties as well as direct searches for new physics in the top sector.

Moon, Chang-Seong

2011-06-01T23:59:59.000Z

392

The Top Quark's Discovery  

NLE Websites -- All DOE Office Websites (Extended Search)

Im Mrz 1995, teilte Fermilab die Entdeckung des top Quark - des letzten der sechs vorhergesagten Quarks - mit. Die Suche begann im Jahre 1977, zusammen mit der erfolgreichen...

393

Cost goals for a residential photovoltaicthermal liquid collector system set in three northern locations  

E-Print Network (OSTI)

This study compares the allowable costs for a residential PV/T liquid collector system with those of both PV-only and side-by-side PV and thermal collector systems. Four types of conventional energy systems provide backup: ...

Dinwoodie, Thomas L.

1980-01-01T23:59:59.000Z

394

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

NLE Websites -- All DOE Office Websites (Extended Search)

Shaking Up the Residential PV Market: Implications of Recent Changes to the Shaking Up the Residential PV Market: Implications of Recent Changes to the ITC Title Shaking Up the Residential PV Market: Implications of Recent Changes to the ITC Publication Type Case Study Year of Publication 2008 Authors Bolinger, Mark, Galen L. Barbose, and Ryan H. Wiser Secondary Title Case Studies of State Support for Renewable Energy Publisher LBNL Place Published Berkeley Pagination 12 Date Published 11/2008 Abstract 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:

395

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

Science Conference Proceedings (OSTI)

This report helps to clarify the confusion surrounding different estimates of system pricing by distinguishing between past, current, and near-term projected estimates. It also discusses the different methodologies and factors that impact the estimated price of a PV system, such as system size, location, technology, and reporting methods.These factors, including timing, can have a significant impact on system pricing.

Feldman, D.; Barbose, G.; Margolis, R.; Wiser, R.; Darghouth, N.; Goodrich, A.

2012-11-01T23:59:59.000Z

396

Photovoltaic Systems  

Energy.gov (U.S. Department of Energy (DOE))

A photovoltaic (PV), or solar electric system, is made up of several photovoltaic solar cells. An individual PV cell is usually small, typically producing about 1 or 2 watts of power. To boost the...

397

Solar Thermal/PV | OpenEI  

Open Energy Info (EERE)

Thermal/PV Thermal/PV Dataset Summary Description Provides annual consumption (in quadrillion Btu) of renewable energy by energy use sector (residential, commercial, industrial, transportation and electricity) and by energy source (e.g. solar, biofuel) for 2004 through 2008. Original sources for data are cited on spreadsheet. Also available from: www.eia.gov/cneaf/solar.renewables/page/trends/table1_2.xls Source EIA Date Released August 01st, 2010 (4 years ago) Date Updated Unknown Keywords annual energy consumption biodiesel Biofuels biomass energy use by sector ethanol geothermal Hydroelectric Conventional Landfill Gas MSW Biogenic Other Biomass renewable energy Solar Thermal/PV Waste wind Wood and Derived Fuels Data application/vnd.ms-excel icon RE Consumption by Energy Use Sector, Excel file (xls, 32.8 KiB)

398

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

E-Print Network (OSTI)

WVM) for Solar PV Power Plants .. 73funding from the DOE High Solar PV Penetration grant 10DE-Variability Model (WVM) for Solar PV Power Plants 2012

Lave, Matthew S.

2012-01-01T23:59:59.000Z

399

The effect of sandstorms on PV arrays and components  

DOE Green Energy (OSTI)

Photovoltaic (PV) systems deployed in desert areas are exposed to wind-blown particles during most of their lifetimes. Here I describe the characteristics of wind-blown particles and with their effect on exposed surfaces. I provide insights for use in array design to minimize the effects of exposure and keep system costs as low as possible. Finally, I present some data describing the exposure of polymer-encapsulated arrays to both field and laboratory wind-blown sand environments, and I present evidence that an encapsulated or ``soft`` array has a higher abrasion resistance and, therefore, a much higher probability of surviving a severe sand environment.

Thornton, J.P.

1992-03-01T23:59:59.000Z

400

The effect of sandstorms on PV arrays and components  

DOE Green Energy (OSTI)

Photovoltaic (PV) systems deployed in desert areas are exposed to wind-blown particles during most of their lifetimes. Here I describe the characteristics of wind-blown particles and with their effect on exposed surfaces. I provide insights for use in array design to minimize the effects of exposure and keep system costs as low as possible. Finally, I present some data describing the exposure of polymer-encapsulated arrays to both field and laboratory wind-blown sand environments, and I present evidence that an encapsulated or soft'' array has a higher abrasion resistance and, therefore, a much higher probability of surviving a severe sand environment.

Thornton, J P

1992-03-01T23:59:59.000Z

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


401

The Impact of Retail Rate Structures on the Economics ofCustomer-Sited PV: A Study of Commercial Installations inCalifornia  

SciTech Connect

We analyze the impact of retail rate design on the economics of grid-connected commercial photovoltaic (PV) systems in California. The analysis is based on 15-minute interval building load and PV production data for 24 commercial PV installations in California, spanning a diverse set of building load shapes and geographic locations. We derive the annual bill savings per kWh generated for each PV system, under each of 21 distinct retail rates currently offered by the five largest utilities in California. We identify and explain variation in the value of bill savings attributable to differences in the structure of demand and energy charges across rates, as well as variation attributable to other factors, such as the size of the PV system relative to building load, the specific shape of the PV production profile, and the customer load profile. We also identify the optimal rate for each customer, among those rates offered as alternatives to one another, and show how the decision is driven in large measure by the size of the PV system relative to building load. The findings reported here may be of value to regulators and utilities responsible for designing retail rates, as well as to customers and PV retailers who have a need to estimate the prospective bill savings of PV systems.

Wiser, Ryan; Mills, Andrew; Barbose, Galen; Golove, William

2007-06-01T23:59:59.000Z

402

Final TOPS Rpt-10pt.PDF  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

TECHNOLOGICAL OPPORTUNITIES TECHNOLOGICAL OPPORTUNITIES TO INCREASE THE PROLIFERATION RESISTANCE OF GLOBAL CIVILIAN NUCLEAR POWER SYSTEMS (TOPS) REPORT BY THE TOPS TASK FORCE OF THE NUCLEAR ENERGY RESEARCH ADVISORY COMMITTEE (NERAC) JANUARY 2001 i TABLE OF CONTENTS INTRODUCTORY NOTE .............................................................................................................iii EXECUTIVE SUMMARY .......................................................................................................ES-1 I. INTRODUCTION ..............................................................................................................1 A. Scope and Purpose ..................................................................................................1 B. The Potential Role of Nuclear Power ......................................................................2

403

Nr.: 19 Academic year: 2012-2013 Title English: Research on possible improvements of normal PV modules Title Dutch: Onderzoek naar verbeteringsmogelijkheden van gewone PV panelen  

E-Print Network (OSTI)

Solar trackers, with concentrators, using multi-junction photovoltaics are used in space applications and big solar-farms in desert like environments. These systems require very expensive materials and direct sunlight. With this thesis we want to investigate the possibilities of improving the efficiency of normal PV modules using Solar trackers, concentrators and artificial cooling of normal mono-junction PV modules. In Belgium the ratio of direct sunlight versus indirect sunlight is mostly below 50%, so one question to be solved is: What is the optimal concentration factor, considering different global direct sunlight versus indirect sunlight values?. An other interesting question is: Is artificial cooling of PV modules useful? Both in the case where the thermal heat is used, and when its not used. Of course the answer will vary with geographical location. Fig. 1: Eg. of a commercial available concentrator (see

Promoter Johan Driesen; Buvana Muthirayan

2011-01-01T23:59:59.000Z

404

DESIGN AND CONSTRUCTION EVALUATION OF A PHOTOVOLTAIC DC LED LIGHTING SYSTEM.  

E-Print Network (OSTI)

??The market demand for commercialization of Photovoltaic (PV) systems depends a lot on the reliability, efficiency and performance of various components within the system. PV (more)

Bhamidipati, Jyotsna

2008-01-01T23:59:59.000Z

405

Top Quark Properties  

Science Conference Proceedings (OSTI)

Since its discovery in 1995 by the CDF and D0 collaborations at the Fermilab Tevatron collider, the top quark has undergone intensive studies. Besides the Tevatron experiments, with the start of the LHC in 2010 a top quark factory started its operation. It is now possible to measure top quark properties simultaneously at four different experiments, namely ATLAS and CMS at LHC and CDF and D0 at Tevatron. Having collected thousands of top quarks each, several top quark properties have been measured precisely, while others are being measured for the first time. In this article, recent measurements of top quark properties from ATLAS, CDF, CMS and D0 are presented, using up to 5.4 fb{sup -1} of integrated luminosity at the Tevatron and 1.1 fb{sup -1} at the LHC. In particular, measurements of the top quark mass, mass difference, foward backward charge asymmetry, t{bar t} spin correlations, the ratio of branching fractions, W helicity, anomalous couplings, color flow and the search for flavor changing neutral currents are discussed.

Peters, Yvonne

2011-12-01T23:59:59.000Z

406

Federal Tax Incentives for PV: Potential Implications for Program Design  

E-Print Network (OSTI)

on Federal ITC Section 48 Resource: PV, CSP, solar heating/25D Resource: PV and solar water heating used in dwellingcooling, solar lighting (no pool heating, and no passive

Wiser, Ryan; Bolinger, Mark

2006-01-01T23:59:59.000Z

407

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

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Loan Guarantees for Three California PV Solar Plants Expected to Create 1,400 Jobs Loan Guarantees for Three California PV Solar Plants Expected to Create 1,400 Jobs June 30, 2011...

408

Austin Energy - Residential Solar PV Rebate Program (Texas) ...  

Open Energy Info (EERE)

for the fiscal year ending September 30, 2004. For 2005, 2,000,000 was budgeted for solar PV rebates and 500,000 for PV installations on municipal buildings. For 2006, the...

409

Federal Tax Incentives for PV: Potential Implications for Program Design  

E-Print Network (OSTI)

than purchase price In cases where PV programs providethe purchase price in an arms-length transaction Most PVprice, the grant is still considered to be from the PV

Wiser, Ryan; Bolinger, Mark

2006-01-01T23:59:59.000Z

410

The Open PV Project | Open Energy Information  

Open Energy Info (EERE)

The Open PV Project The Open PV Project Jump to: navigation, search Tool Summary LAUNCH TOOL Name: The Open PV Project Agency/Company /Organization: NREL Sector: Energy Focus Area: Solar, - Solar PV Topics: Background analysis, Market analysis Resource Type: Dataset, Online calculator, Software/modeling tools User Interface: Website Website: openpv.nrel.gov/about Country: United States Web Application Link: openpv.nrel.gov/ Cost: Free OpenEI Keyword(s): Featured UN Region: Northern America Coordinates: 37.09024°, -95.712891° Loading map... {"minzoom":false,"mappingservice":"googlemaps3","type":"ROADMAP","zoom":14,"types":["ROADMAP","SATELLITE","HYBRID","TERRAIN"],"geoservice":"google","maxzoom":false,"width":"600px","height":"350px","centre":false,"title":"","label":"","icon":"","visitedicon":"","lines":[],"polygons":[],"circles":[],"rectangles":[],"copycoords":false,"static":false,"wmsoverlay":"","layers":[],"controls":["pan","zoom","type","scale","streetview"],"zoomstyle":"DEFAULT","typestyle":"DEFAULT","autoinfowindows":false,"kml":[],"gkml":[],"fusiontables":[],"resizable":false,"tilt":0,"kmlrezoom":false,"poi":true,"imageoverlays":[],"markercluster":false,"searchmarkers":"","locations":[{"text":"","title":"","link":null,"lat":37.09024,"lon":-95.712891,"alt":0,"address":"","icon":"","group":"","inlineLabel":"","visitedicon":""}]}

411

All Solar PV | Open Energy Information  

Open Energy Info (EERE)

All Solar PV All Solar PV Jump to: navigation, search Logo: All Solar PV Name All Solar PV Address 1407-4-105 Century East,Daliushu Road Place Beijing, China Sector Solar Product Solar Energy Products Year founded 2004 Phone number 86-010-52006592 Website http://www.allsolarpv.com/ Coordinates 39.904667°, 116.408198° Loading map... {"minzoom":false,"mappingservice":"googlemaps3","type":"ROADMAP","zoom":14,"types":["ROADMAP","SATELLITE","HYBRID","TERRAIN"],"geoservice":"google","maxzoom":false,"width":"600px","height":"350px","centre":false,"title":"","label":"","icon":"","visitedicon":"","lines":[],"polygons":[],"circles":[],"rectangles":[],"copycoords":false,"static":false,"wmsoverlay":"","layers":[],"controls":["pan","zoom","type","scale","streetview"],"zoomstyle":"DEFAULT","typestyle":"DEFAULT","autoinfowindows":false,"kml":[],"gkml":[],"fusiontables":[],"resizable":false,"tilt":0,"kmlrezoom":false,"poi":true,"imageoverlays":[],"markercluster":false,"searchmarkers":"","locations":[{"text":"","title":"","link":null,"lat":39.904667,"lon":116.408198,"alt":0,"address":"","icon":"","group":"","inlineLabel":"","visitedicon":""}]}

412

PV Odds & Ends by John Wiles  

E-Print Network (OSTI)

are installed in a manner that meets the re- quirements of the National Electrical Code (NEC­NFPA 70). However the PV installer because NEC Section 110.3(B) requires that the instructions and labels on listed members), users, NFPA Code-Making Panel members, IBEW, laboratories, government agen- cies, universities

Johnson, Eric E.

413

Producer-Focused Life Cycle Assessment of Thin-Film Silicon Photovoltaic Systems  

E-Print Network (OSTI)

Life cycle analysis study of solar pv systems: an example ofa 2.7 kwp distributed solar pv system in singapore. Solarcycle analysis of solar pv based electricity generation: a

Zhang, Teresa Weirui

2011-01-01T23:59:59.000Z

414

A Cradle to Grave Framework for Environmental Assessment of Photovoltaic Systems  

E-Print Network (OSTI)

cycle assessment study of solar PV systems: An example ofa 2.7 kWp distributed solar PV system in Singapore, Solarcycle assessment of solar PV based electricity generation: A

Zhang, Teresa; Dornfeld, David

2010-01-01T23:59:59.000Z

415

Residential Photovoltaic Energy Systems in California: The Effect on Home Sales Prices  

E-Print Network (OSTI)

Residential Photovoltaic Energy Systems in California: Themarginal impacts of photovoltaic (PV) energy systems on home

Hoen, Ben

2013-01-01T23:59:59.000Z

416

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

DOE Green Energy (OSTI)

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.

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

2008-05-01T23:59:59.000Z

417

Rooftop PV Data for Better Energy Prediction Models  

Science Conference Proceedings (OSTI)

... New generations of photovoltaic (PV) roofing products utilize designs that ... Finally, the researchers are taking solar radiation measurements at the ...

2011-04-26T23:59:59.000Z

418

Incentives as a Tool for Stimulating PV Market Growth  

SciTech Connect

This paper summarizes several studies analyzing consumer incentives for the grid-tied domestic photovoltaic (PV) market.

Herig, C.

2000-01-01T23:59:59.000Z

419

NREL PV working with industry, 1st Quarter 1999  

SciTech Connect

This issue of PV Working with Industry profiles the participants in the Photovoltaic Manufacturing Technology (PVMaT) project.

Moon, S.

1999-05-20T23:59:59.000Z

420

Analysis of the Impacts of Distribution-Connected PV Using High-Speed Data Sets: Preprint  

DOE Green Energy (OSTI)

This paper, presented at the IEEE Green Technologies Conference 2013, utilizes information from high resolution data acquisition systems developed at the National Renewable Energy Laboratory and deployed on a high-penetration PV distribution system to analyze the variability of different electrical parameters. High-resolution solar irradiance data is also available in the same area which is used to characterize the available resource and how it affects the electrical characteristics of the study circuit. This paper takes a data-driven look at the variability caused by load and compares those results against times when significant PV production is present. Comparisons between the variability in system load and the variability of distributed PV generation are made.

Bank, J.; Mather, B.

2013-03-01T23:59:59.000Z

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


421

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

Science Conference Proceedings (OSTI)

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. Thats 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.

None

2012-02-23T23:59:59.000Z

422

November 21, 2000 PV Lesson Plan 2 Sample Questions & Answers  

E-Print Network (OSTI)

to include the effects of shadowing on solar PV the multilayer perceptrons feed forward network and the back for the neural network is received by In real operating conditions, solar PV arrays are connected measurement to predict the shadow effects on the solar PV arrays for long term assumed linearly proportional to solar

Oregon, University of

423

November 21, 2000 PV Lesson Plan 2 Solar Electric Arrays  

E-Print Network (OSTI)

on innovations in technology that drive PV industry growth. The NCPV is directed to use U.S. national laboratories and universities to accelerate PV as a viable energy option in the United States. #12;Sustainable generations to meet their own needs. ­ UN Bruntland Commission Our Focus: Making PV More Sustainable

Oregon, University of

424

The Top Quark's Discovery  

NLE Websites -- All DOE Office Websites (Extended Search)

1995, Fermilab announced the discovery of the top quark, the last of the six predicted quarks. The search began in 1977 when physicists found the fifth quark, bottom, at Fermilab....

425

Top quark physics: Overview  

SciTech Connect

In this presentation I will primarily focus on top quark physics but I will include a discussion of the W-boson mass and the possibility of discovering a light Higgs boson via associated production at the Tevatron.

Parke, S.

1998-01-01T23:59:59.000Z

426

PV Crystalox Solar AG formerly PV Silicon AG | Open Energy Information  

Open Energy Info (EERE)

PV Crystalox Solar AG formerly PV Silicon AG PV Crystalox Solar AG formerly PV Silicon AG Jump to: navigation, search Name PV Crystalox Solar AG (formerly PV Silicon AG) Place Abingdon, England, United Kingdom Zip OX14 4SE Sector Solar Product UK-based manufacturer of multicrystalline ingots and wafers to the solar industry; as of early 2009, to output solar-grade polysilicon. Coordinates 36.71049°, -81.975194° Loading map... {"minzoom":false,"mappingservice":"googlemaps3","type":"ROADMAP","zoom":14,"types":["ROADMAP","SATELLITE","HYBRID","TERRAIN"],"geoservice":"google","maxzoom":false,"width":"600px","height":"350px","centre":false,"title":"","label":"","icon":"","visitedicon":"","lines":[],"polygons":[],"circles":[],"rectangles":[],"copycoords":false,"static":false,"wmsoverlay":"","layers":[],"controls":["pan","zoom","type","scale","streetview"],"zoomstyle":"DEFAULT","typestyle":"DEFAULT","autoinfowindows":false,"kml":[],"gkml":[],"fusiontables":[],"resizable":false,"tilt":0,"kmlrezoom":false,"poi":true,"imageoverlays":[],"markercluster":false,"searchmarkers":"","locations":[{"text":"","title":"","link":null,"lat":36.71049,"lon":-81.975194,"alt":0,"address":"","icon":"","group":"","inlineLabel":"","visitedicon":""}]}

427

NERSC's Hopper is Among World's Top 10 Fastest Computers  

NLE Websites -- All DOE Office Websites (Extended Search)

Hopper Among World's Top 10 Fastest Computers Hopper Among World's Top 10 Fastest Computers One of only 10 Petaflops Systems Worldwide June 17, 2011 | Tags: Hopper, NERSC Linda Vu,...

428

Top Physics Review and Outlook  

E-Print Network (OSTI)

I review the status of the top quark, and look forward to three topics relevant to future top-quark physics; spin correlation, single-top-quark production, and unification.

S. Willenbrock

1996-08-22T23:59:59.000Z

429

Research of PV Application on  

E-Print Network (OSTI)

-intertied Solar Power without Batteries is what the Federal incentives and State rebates are encouraging people DC off-grid solar power systems are most often used to power DC appliances in RV's, boats, and cabins is not accessible. DC solar power is less expensive than AC solar power because an inverter is not required

Netoff, Theoden

430

Commissioning ATLAS and CMS with top quarks  

E-Print Network (OSTI)

The large ttbar production cross-section at the LHC suggests the use of top quark decays to calibrate several critical parts of the detectors, such as the trigger system, the jet energy scale and b-tagging.

B. S. Acharya; F. Cavallari; G. Corcella; R. Di Sipio; G. Petrucciani

2008-05-25T23:59:59.000Z

431

Long-Term Modeling of Solar Energy: Analysis of Concentrating Solar Power (CSP) and PV Technologies  

DOE Green Energy (OSTI)

This report presents an overview of research conducted on solar energy technologies and their implementation in the ObjECTS framework. The topics covered include financing assumptions and selected issues related to the integration of concentrating thermal solar power (CSP) and photovoltaics PV technologies into the electric grid. A review of methodologies for calculating the levelized energy cost of capital-intensive technologies is presented, along with sensitivity tests illustrating how the cost of a solar plant would vary depending on financing assumptions. An analysis of the integration of a hybrid concentrating thermal solar power (CSP) system into the electric system is conducted. Finally a failure statistics analysis for PV plants illustrates the central role of solar irradiance uncertainty in determining PV grid integration characteristics.

Zhang, Yabei; Smith, Steven J.

2007-08-16T23:59:59.000Z

432

Design of a Net-Metering and PV Exhibit for the 2005 Solar Decathlon  

SciTech Connect

In the 2005 Solar Decathlon competition, 19 collegiate teams will design, build, and operate grid-independent homes powered by photovoltaic (PV) arrays on the National Mall. The prominence of grid-interconnected systems in the marketplace has provided the impetus for the development of a net-metering exhibit to be installed and operated during the competition. The exhibit will inform the visiting public about PV basics and appropriate alternatives to grid-independent systems. It will consist of four interactive components. One will be designed to educate people about the principles of net metering using a small PV array, a grid-interactive inverter, and a variable load. Additional components of the exhibit will demonstrate the effects of orientation, cloud cover, and nighttime on performance. The nighttime component will discuss appropriate storage options for different applications.

Wassmer, M.; Warner, C.

2005-01-01T23:59:59.000Z

433

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

SciTech Connect

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.

Granata, Jennifer E.; Quintana, Michael A.; Tasca, Coryne Adelle (SRA International, Inc., Fairfax, VA); Atcitty, Stanley

2011-07-01T23:59:59.000Z

434

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

DOE Green Energy (OSTI)

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.

Granata, Jennifer E.; Quintana, Michael A.; Tasca, Coryne Adelle (SRA International, Inc., Fairfax, VA); Atcitty, Stanley

2011-07-01T23:59:59.000Z

435

Optimal sizing study of hybrid wind/PV/diesel power generation unit  

Science Conference Proceedings (OSTI)

In this paper, a methodology of sizing optimization of a stand-alone hybrid wind/PV/diesel energy system is presented. This approach makes use of a deterministic algorithm to suggest, among a list of commercially available system devices, the optimal number and type of units ensuring that the total cost of the system is minimized while guaranteeing the availability of the energy. The collection of 6 months of data of wind speed, solar radiation and ambient temperature recorded for every hour of the day were used. The mathematical modeling of the main elements of the hybrid wind/PV/diesel system is exposed showing the more relevant sizing variables. A deterministic algorithm is used to minimize the total cost of the system while guaranteeing the satisfaction of the load demand. A comparison between the total cost of the hybrid wind/PV/diesel energy system with batteries and the hybrid wind/PV/diesel energy system without batteries is presented. The reached results demonstrate the practical utility of the used sizing methodology and show the influence of the battery storage on the total cost of the hybrid system. (author)

Belfkira, Rachid; Zhang, Lu; Barakat, Georges [Groupe de Recherche en Electrotechnique et Automatique du Havre, University of Le Havre, 25 rue Philippe Lebon, BP 1123, 76063 Le Havre (France)

2011-01-15T23:59:59.000Z

436

Integrated Building Energy Systems Design Considering Storage Technologies  

E-Print Network (OSTI)

Emerging Applications Sandia National Laboratory, SAND2001-Impact on PV System Design, Sandia National Laboratories.

Stadler, Michael

2009-01-01T23:59:59.000Z

437

Photovoltaic System Performance  

Energy.gov (U.S. Department of Energy (DOE))

Photovoltaic (PV) systems are usually composed of numerous solar arrays, which in turn, are composed of numerous PV cells. The performance of the system is therefore dependent on the performance of...

438

Building America Top Innovations Hall of Fame Profile - Integration...  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Integration of HVAC System Design with Simplified Duct Distribution Building America Top Innovations Hall of Fame Profile - Integration of HVAC System Design with Simplified Duct...

439

Building America Top Innovations Hall of Fame Profile - Basement...  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Basement Insulation Systems Building America Top Innovations Hall of Fame Profile - Basement Insulation Systems This Building America Innovations profile describes Building America...

440

Electric top drives gain wide industry acceptance  

Science Conference Proceedings (OSTI)

Since its introduction, the top drive drilling system has gained acceptance as a productive and safe method for drilling oil and gas wells. Originally, the system was used mostly for offshore and higher cost land drilling, and it had to be installed as a permanent installation because of its enormous weight and size. Essentially, a top drive replaces the kelly and rotary table as the means of rotating drillpipe on oil, gas and geothermal rigs and is considered to be 15% to 40% more efficient than a kelly drive. Top drive systems allow the operator to drill and maintain directional orientation for triple stands and provide tripping efficiency because of the ability to ream and circulate with triple stands, to reduce the risk of stuck pipe or lost wells, and to improve well control and pipe handling safety. The paper describes electric top drives with DC motors, top drives with AC motors, top drives with permanent magnet motors, and top drives with permanent magnet brushless synchronous motors.

Riahi, M.L.

1998-05-01T23:59:59.000Z

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While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
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441

PV Solar Planet | Open Energy Information  

Open Energy Info (EERE)

Planet Planet Jump to: navigation, search Logo: PV Solar Planet Name PV Solar Planet Address 5856 S. Garland Way Place Littleton, Colorado Zip 80123 Sector Solar Product Sales of solar laminate Website http://www.pvsolarplanet.com/ Coordinates 39.610743°, -105.105245° Loading map... {"minzoom":false,"mappingservice":"googlemaps3","type":"ROADMAP","zoom":14,"types":["ROADMAP","SATELLITE","HYBRID","TERRAIN"],"geoservice":"google","maxzoom":false,"width":"600px","height":"350px","centre":false,"title":"","label":"","icon":"","visitedicon":"","lines":[],"polygons":[],"circles":[],"rectangles":[],"copycoords":false,"static":false,"wmsoverlay":"","layers":[],"controls":["pan","zoom","type","scale","streetview"],"zoomstyle":"DEFAULT","typestyle":"DEFAULT","autoinfowindows":false,"kml":[],"gkml":[],"fusiontables":[],"resizable":false,"tilt":0,"kmlrezoom":false,"poi":true,"imageoverlays":[],"markercluster":false,"searchmarkers":"","locations":[{"text":"","title":"","link":null,"lat":39.610743,"lon":-105.105245,"alt":0,"address":"","icon":"","group":"","inlineLabel":"","visitedicon":""}]}

442

Materials Testing for PV Module Encapsulation  

DOE Green Energy (OSTI)

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.

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

2003-05-01T23:59:59.000Z

443

Microsoft Word - PV Report v20.doc  

Gasoline and Diesel Fuel Update (EIA)

A A EIA Task Order No. DE-DT0000804, Subtask 3 Photovoltaic (PV) Cost and Performance Characteristics for Residential and Commercial Applications Final Report August 2010 Prepared for: Office of Integrated Analysis and Forecasting U.S. Energy Information Administration Prepared by: ICF International Contact: Robert Kwartin T: (703) 934-3586 E: rkwartin@icfi.com ii Table of Contents Executive Summary ...................................................................................................................... v 1. Introduction ...........................................................................................................................1 1.1 Objective ....................................................................................................................1

444

Feasibility Study of Economics and Performance of Solar PV at the Atlas Industrial Park in Duluth, Minnesota  

SciTech Connect

The U.S. Environmental Protection Agency (EPA) Region 5, in accordance with the RE-Powering America's Land initiative, selected the Atlas Industrial Park in Duluth, Minnesota, for a feasibility study of renewable energy production. The EPA provided funding to the National Renewable Energy Laboratory (NREL) to support a feasibility study of solar renewable energy generation at the Atlas Industrial Park. NREL provided technical assistance for this project but did not assess environmental conditions at the site beyond those related to the performance of a photovoltaic (PV) system. The purpose of this study is to assess the site for a possible PV installation and estimate the cost, performance, and site impacts of different PV configurations. In addition, the study evaluates financing options that could assist in the implementation of a PV system at the site.

Steen, M.; Lisell, L.; Mosey, G.

2013-01-01T23:59:59.000Z

445

Top Ten Lists  

NLE Websites -- All DOE Office Websites (Extended Search)

Fueleconomy Top Ten Fueleconomy Top Ten EPA Rated - 2014 EPA Rated - All Years Shared Estimates - All Years Misconceptions Fueleconomy.gov's Top Ten EPA-Rated Fuel Sippers (2014) Include all-electric and plug-in hybrid vehicles? Yes No Vehicles are ranked by their combined rating (weighted by 55% city and 45% highway). In the event of a tie, multiple vehicles may share the same ranking. Electric vehicles are measured in Miles Per Gallon equivalent (MPGe) where 33.7 kW-hrs = 1 gallon of gasoline. 1. 2014 Chevrolet Spark EV 2014 Chevrolet Spark EV Combined 119 City 128/Highway 109 All-electric, Auto (A1) 2. 2014 Honda Fit EV 2014 Honda Fit EV Combined 118 City 132/Highway 105 All-electric, Auto (A1) 3. 2014 Fiat 500e 2014 Fiat 500e Combined 116 City 122/Highway 108 All-electric, Auto (A1)

446

Monitoring System Performance (Presentation)  

DOE Green Energy (OSTI)

Requirements for a standard test to rate the durability of photovoltaic (PV) modules at system voltage are discussed.

Emery, K.; Smith, R.

2011-02-01T23:59:59.000Z

447

PV Manufacturing R&D Project -- Trends in the U.S. PV Industry  

DOE Green Energy (OSTI)

To foster continued growth in the U.S. photovoltaic (PV) industry, the U.S. Department of Energy initiated the PV Manufacturing R&D (PVMR&D) Project--a partnership with U.S. PV industry participants to perform cost-shared manufacturing research and development. Throughout FY 2004, PVMR&D managed fourteen subcontracts across the industry. The impact of PVMR&D is quantified by reductions in direct module manufacturing costs, scale-up of existing PV production capacity, and accrual of cost savings to the public and industry. An analysis of public and industry investment shows that both recaptured funds by mid-1998 based on estimated manufacturing cost savings from PVMR&D participation. Since project inception, total PV manufacturing capacity has increased from 14 MW to 201 MW at the close of 2003, while direct manufacturing costs declined from $5.55/W to $2.49/W. These results demonstrate continued progress toward the overriding goals of the PVMR&D project.

Brown, K. E.; Mitchell, R. L.; Bower, W. I.; King, R.

2005-01-01T23:59:59.000Z

448

A Hybrid PSO-Self Regulating VSC-SMC Controller for PV-FC-Diesel-Battery Renewable Energy Scheme for Buildings Electricity Utilization  

Science Conference Proceedings (OSTI)

The paper presents the dynamic modeling and coordinated control strategy for an integrated micro grid scheme using Photo Voltaic PV, Fuel Cell FC, and backup Diesel generation with additional battery backup system. The integrated scheme is fully stabilized ... Keywords: Diesel-driven generator, Photo Voltaic PV, Fuel Cell, Backup Battery, Dynamic Filter Compensator, Green Power Filter, Multi Objective Optimization MOO, Particle Swarm Optimization PSO

Adel M. Sharaf; Adel A. A. El-Gammal

2010-05-01T23:59:59.000Z

449

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  

DOE Green Energy (OSTI)

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.

West, R.

2012-12-01T23:59:59.000Z

450

Photovoltaic Performance and Reliability Database: A Gateway to Experimental Data Monitoring Projects for PV at the Florida Solar Energy Center  

DOE Data Explorer (OSTI)

This site is the gateway to experimental data monitoring projects for photovoltaic (PV) at the Florida Solar Energy Center. The website and the database were designed to facilitate and standardize the processes for archiving, analyzing and accessing data collected from dozens of operational PV systems and test facilities monitored by FSEC's Photovoltaics and Distributed Generation Division. [copied from http://www.fsec.ucf.edu/en/research/photovoltaics/data_monitoring/index.htm

451

An Analysis of the Effects of Residential Photovoltaic Energy Systems on Home Sales Prices in California  

E-Print Network (OSTI)

in residential selling prices as PV systems increase inhas an effect on the sale price of PV homes (i.e. , a fixedcomparable homes, sales prices of PV homes are compared

Hoen, Ben

2011-01-01T23:59:59.000Z

452

Xcel Energy - Solar*Rewards Program and MN Made PV Rebate Program |  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Xcel Energy - Solar*Rewards Program and MN Made PV Rebate Program Xcel Energy - Solar*Rewards Program and MN Made PV Rebate Program Xcel Energy - Solar*Rewards Program and MN Made PV Rebate Program < Back Eligibility Commercial Local Government Nonprofit Residential Savings Category Solar Buying & Making Electricity Maximum Rebate $90,000 (as determined by the incentive level and maximum system size) Program Info Start Date 03/01/2010 State Minnesota Program Type Utility Rebate Program Rebate Amount REC Rebate Program 2010-2012:$2.25/W DC REC Rebate Program 2013:$1.50/W DC Minnesota Made Bonus 2010-2012:Up to an additional $2.75/W DC (paired with REC Rebate) Provider Xcel Energy '''''Note: All 2012 funding for the Solar*Rewards program and Minnesota Made Bonus has been reserved as of July 11, 2012. On October 1, 2012, the

453

TEMPERATURE COEFFICIENTS FOR PV MODULES AND ARRAYS: MEASUREMENT METHODS, DIFFICULTIES, AND RESULTS  

Office of Scientific and Technical Information (OSTI)

TEMPERATURE COEFFICIENTS FOR PV MODULES AND ARRAYS: TEMPERATURE COEFFICIENTS FOR PV MODULES AND ARRAYS: MEASUREMENT METHODS, DIFFICULTIES, AND RESULTS David L. King, Jay A. Kratochvil, and William E. Boyson Sandia National Laboratories, Albuquerque, NM 0 ABSTRACT The term "temperature coefficient" has been applied to several different photovoltaic performance parameters, including voltage, current, and power. The procedures for measuring the coefficient(s) for modules and arrays are not yet standardized, and systematic influences are common in the test methods used to measure them. There are also misconceptions regarding their application. Yet, temperature coefficients, however obtained, play an important role in PV system design and sizing, where often the worst case operating condition dictates the array

454

Wind/PV Generation for Frequency Regulation and Oscillation Damping in the Eastern Interconnection  

SciTech Connect

This report presents the control of renewable energy sources, including the variable-speed wind generators and solar photovoltaic (PV) generators, for frequency regulation and inter-area oscillation damping in the U.S. Eastern Interconnection (EI). In this report, based on the user-defined wind/PV generator electrical control model and the 16,000-bus Eastern Interconnection dynamic model, the additional controllers for frequency regulation and inter-area oscillation damping are developed and incorporated and the potential contributions of renewable energy sources to the EI system frequency regulation and inter-area oscillation damping are evaluated.

Liu, Yong [The University of Tennessee, Knoxville] [The University of Tennessee, Knoxville; Gracia, Jose R [ORNL] [ORNL; Hadley, Stanton W [ORNL] [ORNL; Liu, Yilu [ORNL] [ORNL

2013-12-01T23:59:59.000Z

455

New results in forecasting of photovoltaic systems output based on solar radiation forecasting  

Science Conference Proceedings (OSTI)

Accurate short term forecasting of photovoltaic (PV) systems output has a great significance for fast development of PV parks in South-East Europe

Laurentiu Fara

2013-01-01T23:59:59.000Z

456

PV Installation Labor Market Analysis and PV JEDI Tool Developments (Presentation), NREL (National Renewable Energy Laboratory)  

NLE Websites -- All DOE Office Websites (Extended Search)

PV Installation Labor Market Analysis PV Installation Labor Market Analysis and PV JEDI Tool Developments Barry Friedman NREL Strategic Energy Analysis Center May 16, 2012 World Renewable Energy Forum Denver, Colorado NREL/PR-6A20-55130 NATIONAL RENEWABLE ENERGY LABORATORY Disclaimer 2 DISCLAIMER AGREEMENT These information ("Data") are provided by the National Renewable Energy Laboratory ("NREL"), which is operated by the Alliance for Sustainable Energy LLC ("Alliance") for the U.S. Department of Energy (the "DOE"). It is recognized that disclosure of these Data is provided under the following conditions and warnings: (1) these Data have been prepared for reference purposes only; (2) these Data consist of forecasts, estimates or assumptions made on a best-

457

Experimental investigation and modeling of a direct-coupled PV/T air collector  

Science Conference Proceedings (OSTI)

Photovoltaic/thermal (PV/T) systems refer to the integration of photovoltaic and solar thermal technologies into one single system, in that both useful heat energy and electricity are produced. The impetus of this paper is to model a direct-coupled PV/T air collector which is designed, built, and tested at a geographic location of Kerman, Iran. In this system, a thin aluminum sheet suspended at the middle of air channel is used to increase the heat exchange surface and consequently improve heat extraction from PV panels. This PV/T system is tested in natural convection and forced convection (with two, four and eight fans operating) and its unsteady results are presented in with and without glass cover cases. A theoretical model is developed and validated against experimental data, where good agreement between the measured values and those calculated by the simulation model were achieved. Comparisons are made between electrical performance of the different modes of operation, and it is concluded that there is an optimum number of fans for achieving maximum electrical efficiency. Also, results show that setting glass cover on photovoltaic panels leads to an increase in thermal efficiency and decrease in electrical efficiency of the system. (author)

Shahsavar, A.; Ameri, M. [Department of Mechanical Engineering, Faculty of Engineering, Shahid Bahonar University, Kerman (Iran, Islamic Republic of); Energy and Environmental Engineering Research Center, Shahid Bahonar University, Kerman (Iran, Islamic Republic of)

2010-11-15T23:59:59.000Z

458

Co-Designing Sustainable Communities: The Identification and Incorporation of Social Performance Metrics in Native American Sustainable Housing and Renewable Energy System Design  

E-Print Network (OSTI)

or mechanisms (in case solar PV system whose excess energyseen in the PPNs selection of solar PV systems as they werePG&E). (2013). Solar Photovoltaic (PV) and Renewable

Shelby, Ryan

2013-01-01T23:59:59.000Z

459

Trimode Power Converter optimizes PV, diesel and battery energy sources  

SciTech Connect

Conservatively, there are 100,000 localities in the world waiting for the benefits that electricity can provide, and many of these are in climates where sunshine is plentiful. With these locations in mind a prototype 30 kW hybrid system has been assembled at Sandia to prove the reliability and economics of photovoltaic, diesel and battery energy sources managed by an autonomous power converter. In the Trimode Power Converter the same power parts, four IGBT`s with an isolation transformer and filter components, serve as rectifier and charger to charge the battery from the diesel; as a stand-alone inverter to convert PV and battery energy to AC; and, as a parallel inverter with the diesel-generator to accommodate loads larger than the rating of the diesel. Whenever the diesel is supplying the load, an algorithm assures that the diesel is running at maximum efficiency by regulating the battery charger operating point. Given the profile of anticipated solar energy, the cost of transporting diesel fuel to a remote location and a five year projection of load demand, a method to size the PV array, battery and diesel for least cost is developed.

O`Sullivan, G. [Abacus Controls, Inc., Somerville, NJ (United States); Bonn, R.; Bower, W. [Sandia National Labs., Albuquerque, NM (United States)

1994-07-01T23:59:59.000Z

460

City of San Diego This page outlines solar PV incentives, financing mechanisms, permitting process, and  

E-Print Network (OSTI)

to actual energy use and is responsible for system performance, operations and maintenance. #12; www.energycenter.org/index.php/incentive-programs/california-solar- initiative/csi-latest-news/2167-why-pay-to-install-solar · Property Assessed Clean Energy (PACE) Programs oCity of San Diego This page outlines solar PV incentives, financing mechanisms, permitting process

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


461

Community Renewable Energy Webinar: Developing PV Projects | Department of  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Community Renewable Energy Webinar: Developing PV Projects Community Renewable Energy Webinar: Developing PV Projects Community Renewable Energy Webinar: Developing PV Projects January 15, 2013 1:00PM MST Webinar This webinar will take place from 1-2:15 p.m. Mountain Standard Time. It will provide information on how the cities of Tucson, Arizona, and Minneapolis, Minnesota, utilized requests for proposals (RFPs) and power purchase agreements (PPAs) to develop photovoltaic (PV) projects. The webinar will feature two presentations, highlighted below. RFIs, RFPs, and RFQs for PV: Finding the Right Solar Contractors for Your Community Choosing vendors for solar projects requires a careful look since you may well be dealing with them for 20 years ... or more. The City of Tucson will highlight its experiences with city-owned PV projects as well as a PPA

462

CdTe PV: Real and Perceived EHS Risks  

DOE Green Energy (OSTI)

As CdTe photovoltaics reached commercialization, questions have been raised about potential cadmium emissions from CdTe PV modules. Some have attacked the CdTe PV technology as unavoidably polluting the environment, and made comparisons of hypothetical emissions from PV modules to cadmium emissions from coal fired power plants. This paper gives an overview of the technical issues pertinent to these questions and further explores the potential of EHS risks during production, use and decommissioning of CdTe PV modules. The following issues are discussed: (a) The physical and toxicological properties of CdTe, (b) comparisons of Cd use in CdTe PV with its use in other technologies and products, and the (c) the possibility of CdTe releases from PV modules.

Fthenakis, V.; Zweibel, K.

2003-05-01T23:59:59.000Z

463

Energy 101: Solar PV | Department of Energy  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Energy 101: Concentrating Solar Power Cathy Zoi on Weatherization BP Oil Spill Footage (High Def) - Top Hat Procedure at 4850' - June 3 2010 (4 of 4) BP Oil Spill Footage (High...

464

Modular Power Converters for PV Applications  

DOE Green Energy (OSTI)

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.

Ozpineci, Burak [ORNL; Tolbert, Leon M [ORNL

2012-05-01T23:59:59.000Z

465

Ultra Accelerated Testing of PV Module Components  

DOE Green Energy (OSTI)

Using concentrated natural sunlight at the NREL High Flux Solar Furnace, we have exposed several materials to acceleration factors of up to 400 times the normal outdoor UV exposure dose. This accelerated rate allows the exposure of materials such that a year of outdoor exposure can be simulated in about 5 hours. We have studied the solarization of cerium containing glass, the degradation of ethylene vinyl acetate laminated between borosilicate glass, and the yellowing of standard polystyrene test coupons. The first two candidates are of interest to the photovoltaics (PV) program, and the last candidate material is a widely used dosimeter for ultra violet (UV) exposure in accelerated weathering chambers

Pitts, J. R.; King, D. E.; Bingham, C.; Czanderna, A. W.

1998-10-28T23:59:59.000Z

466