FY 2004 ANNUAL REPORT DOE Solar

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FY 2004 ANNUAL REPORT DOE Solar ( fy-2004-annual-report-doe-solar )

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PV Systems Analysis Performing Organizations: National Renewable Energy Laboratory Sandia National Laboratories Key Technical Contacts: David Mooney (NREL), 303-384-6782, david_mooney@nrel.gov Robert Margolis (NREL), 202-646-5053, robert_margolis@nrel.gov Charles Hanley (SNL), 505-844-4435, cjhanle@sandia.gov DOE HQ Technology Manager: Dan Ton, 202-586-4618, dan.ton@ee.doe.gov FY 2004 Budget: $831K (NREL), $336K (SNL) _____________________________________________________________________________________ Objectives • Develop a solar energy systems model that will allow users to investigate the impact of variations in physical, cost, and financial parameters to better understand their impact on key figures of merit. • Develop a model with a user-friendly, intuitive interface. • Develop a model to be used by DOE and laboratory management and research staff as a tool in informing R&D investment decisions. The model may also be used by members of the solar industry to inform internal R&D direction and to estimate systems cost and performance. • Improve the analytical basis for understanding the system and policy drivers of PV technologies in various markets. • Conduct an analysis of the associated costs and performance of PV systems in a key market sector, namely, commercial and utility-scale systems. Accomplishments • A beta model was completed that offers the user the ability to conduct parametric studies on performance, costs, and financing for a 2.4-kW grid-tied residential PV system. • Existing models were encoded into the PV model. The primary models included were PVWATTS and the SNL-developed module performance model. • Provided analytical support to U.S. industry PV roadmapping process. • Completed analysis examining the reliability, security, and time-of-use value of PV. Three papers based on this work were presented at the ASES Solar 2004 Conference (July 2004), two papers were presented at the WREC 2004 Conference (August 2004), and one article was published in Refocus Magazine (August 2004). • Completed an analysis of the performance, cost, maintenance, installation, and design of PV systems installed by Arizona Public Service over a multi-year operational period. This work has been accepted for publication in 2005 in the journal Progress in Photovoltaics. Future Directions • Refine PV performance and cost models based on discussions with technology experts and user feedback. • Update to include commercial and project finance models. • Develop and incorporate more complete inverter models into PV system model. • Continue work on technology-policy tradeoff studies, in particular, to support state-level activities.

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