Analysis of Photovoltaic System Energy Performance Evaluation Method

Kurtz, S. ; Newmiller, J. ; Kimber, A. ; Flottemesch, R. ; Riley, E. ; Dierauf, T. ; McKee, J. ; Krishnani, P.

National Renewable Energy Laboratory (U.S.)

关键词: Test Method;    Energy;    Solar Energy - Photovoltaics;    Photovoltaic;    14 Solar Energy Photovoltaic;   

DOI  :  10.2172/1111193
RP-ID  :  NREL/TP-5200-60628
RP-ID  :  AC36-08GO28308
RP-ID  :  1111193

美国|英语

来源: UNT Digital Library

【 摘 要 】

Documentation of the energy yield of a large photovoltaic (PV) system over a substantial period can be useful to measure a performance guarantee, as an assessment of the health of the system, for verification of a performance model to then be applied to a new system, or for a variety of other purposes. Although the measurement of this performance metric might appear to be straight forward, there are a number of subtleties associated with variations in weather and imperfect data collection that complicate the determination and data analysis. A performance assessment is most valuable when it is completed with a very low uncertainty and when the subtleties are systematically addressed, yet currently no standard exists to guide this process. This report summarizes a draft methodology for an Energy Performance Evaluation Method, the philosophy behind the draft method, and the lessons that were learned by implementing the method.