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Facility Microgrids

Description: Microgrids are receiving a considerable interest from the power industry, partly because their business and technical structure shows promise as a means of taking full advantage of distributed generation. This report investigates three issues associated with facility microgrids: (1) Multiple-distributed generation facility microgrids' unintentional islanding protection, (2) Facility microgrids' response to bulk grid disturbances, and (3) Facility microgrids' intentional islanding.
Date: May 1, 2005
Creator: Ye, Z.; Walling, R.; Miller, N.; Du, P. & Nelson, K.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Superconducting Magnetic Energy Storage for electric power system dynamic stabilization

Description: A Superconducting Magnetic Energy Storage (SMES) system is being developed at the Los Alamos Scientific Laboratory (LASL) for a dynamic stabilizer to be installed in the Bonneville Power Administration (BPA) power system at Tacoma, Washington, by 1982. This unit will be an alternate stabilization method to the dc modulator now used to stabilize the 900 mile, ac intertie between BPA and Southern California. The generation control systems' response to the constantly occurring, small-load and volt… more
Date: January 1, 1979
Creator: Turner, R. D.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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Future contingencies and photovoltaic system worth

Description: The value of dispersed photovoltaic systems connected to the utility grid has been calculated using the General Electric Optimized Generation Planning program. The 1986 to 2001 time period was used for this study. Photovoltaic systems were dynamically integrated, up to 5% total capacity, into 9 NERC based regions under a range of future fuel and economic contingencies. Value was determined by the change in revenue requirements due to the photovoltaic additions. Displacement of high cost fuel wa… more
Date: January 1, 1982
Creator: Jones, G. J.; Thomas, M. G. & Bonk, G. J.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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Regional power systems planning: a state of the art assessment. Final report

Description: The purpose of this report was to define regional power systems planning problems, the tools available and their shortcomings, and to document all of the above in a concise readable form. The approach consisted of a survey and literature search. The survey determined the tools being used by utilities, the tools they had rejected, and the tools they planned to try out. The literature search was conducted for the purpose of documenting the tools available, and performing a comparative analysis of… more
Date: October 1, 1980
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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HVDC-AC system interaction from AC harmonics. Volume 1. Harmonic impedance calculations. Final report

Description: Improved methods are needed to characterize ac system harmonic behavior for ac filter design for HVDC systems. The purpose of this General Electric Company RP1138 research is to evaluate the present filter design practice and to investigate methods for calculating system harmonic impedances. An overview of ac filter design for HVDC systems and a survey of literature related to filter design have been performed. Two methods for calculating system harmonic impedances have been investigated. In th… more
Date: September 1, 1982
Creator: Breuer, G D; Chow, J H; Lindh, C B; Miller, N W; Numrich, F H; Price, W W et al.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Electric power supply and demand 1979 to 1988 for the contiguous United States as projected by the Regional Electric Reliability Councils in their April 1, 1979 long-range coordinated planning reports to the Department of Energy

Description: Information concerning bulk electric power supply and demand is summarized and reviewed. Electric-utility power-supply systems are composed of power sources, transmission and distribution facilities, and users of electricity. In the United States there are three such systems of large geographic extent that together cover the entire country. Subjects covered are: energy forecasts, peak demand forecasts, generating-capacity forecasts, purchases and sales of capacity, and transmission. Extensive d… more
Date: December 1, 1979
Creator: Savage, N. & Graban, W.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Subsystem engineering and development of grid-connected photovoltaic systems

Description: The experience gained in fielding residential and intermediate sized photovoltaic application experiments is summarized. This experience is used to guide the engineering and development of array and power conditioning subsystems for grid-connected photovoltaic systems. A major consideration in this development effort is cost. Through innovative engineering, using a modular building block approach for the array subsystem, it is now possible to construct array fields, in moderate quantities, for … more
Date: January 1, 1982
Creator: Burgess, E. L.; Post, H. N. & Key, T. S.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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Photovoltaics Value Analysis

Description: The goals of this report are to identify best practices in methodologies for estimating the value of distributed PV technologies, identify gaps in existing knowledge, and outline R&D opportunities.
Date: February 1, 2008
Creator: Contreras, J.L.; Frantzis, L.; Blazewicz, S.; Pinault, D. & Sawyer, H.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Photovoltaic commercialization: an analysis of legal issues affecting a government-accelerated solar industry

Description: The Photovoltaics Research, Development, and Demonstration Act of 1978 is discussed. Legal issues, including solar access, the need for performance standards, the effects of building codes on photovoltaic system use and commercialization, and manufacturer and installer performance guarantees, are examined. Electric utility policies are examined, including interconnection, and rates and legal issues affecting them. (LEW)
Date: June 1, 1980
Creator: Lamm, D.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Economic evaluation of solar-only and hybrid power towers using molten salt technology

Description: Several hybrid and solar-only configurations for molten-salt power towers were evaluated with a simple economic model, appropriate for screening analysis. The solar specific aspects of these plants were highlighted. In general, hybrid power towers were shown to be economically superior to solar-only plants with the same field size. Furthermore, the power-booster hybrid approach was generally preferred over the fuel-saver hybrid approach. Using today`s power tower technology, economic viability … more
Date: December 1, 1996
Creator: Kolb, G.J.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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Assessment of the technology transfer potential of federal photovoltaic power system applications to commercial markets. Final report

Description: An assessment of the market potential of photovoltaic power supplies is presented. Markets analyzed include the water pumping market, marine navigational aids, cathodic protection, remote general power sources, telecommunications, air navigational aids, mobile generator market, instrumentation, and utility connected applications.
Date: June 1, 1979
Creator: Jaras, T F
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Photovoltaics for residential applications

Description: Information is given about the parts of a residential photovoltaic system and considerations relevant to photovoltaic power use in homes that are also tied to utility lines. In addition, factors are discussed that influence implementation, including legal and environmental factors such as solar access and building codes, insurance, utility buyback, and system longevity. (LEW)
Date: February 1, 1984
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Residential photovoltaic systems: results and issues

Description: If the photovoltaic system in a residential application is viewed as dedicated to the household loads, the on-site energy use becomes the key factor in system design. However, the basis for this viewpoint is that the backup electricity cost to the homeowner is independent of the PV system's presence. This assumption appears invalid if the utility's perception of distributed energy generators is analyzed. If a PV system is to reflect long term utility action, then the value of PV gener… more
Date: January 1, 1982
Creator: Jones, G. J. & Biringer, K. L.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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Perspectives on an NWCC/NREL Assessment of Distributed Wind

Description: During 1998 and 1999, the National Wind Coordinating Committee (NWCC) conducted an assessment of distributed wind power. The project team was led by Princeton Economic Research, Inc., now known as Princeton Energy Resources International (PERI). Financial support was provided by the US Department of Energy (DOE) through the wind energy program at the National Renewable Energy Laboratory (NREL) and the Electric Power Research Institute (EPRI). Project oversight and review were provided by NWCC's… more
Date: September 13, 2000
Creator: Parsons, B.; Cohen, J. & DeMeo, E.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Residential photovoltaic power conditioner subsystem test procedures

Description: The inspections to be made, the conditions for measurement, the variables to be measured and the analyses to be performed in order to characterize the operation of a power-conditioning subsystem (PCS) are described. Of primary concern is the small, utility-interactive PCS in the 2- to 10-kW power range for use in a residential photovoltaic (PV) system feeding a single-phase 120/240-volt line. The procedure is broken down into four main tasks: analysis of the design, tests under nominal conditio… more
Date: February 1, 1982
Creator: Cox, C. H., III
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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