This report presents a performance analysis of 75 solar photovoltaic (PV) systems installed at federal sites, conducted by the Federal Energy Management Program (FEMP) with support from National Renewable Energy Laboratory and Lawrence Berkeley National Laboratory.
What are the four performance parameters of a solar system?
Four performance parameters that define the overall system performance with respect to the energy production, solar resource, and overall effect of system losses are the following: final PV system yield, reference yield, performance ratio, and PVUSA rating.
What is the IEC standard for photovoltaic system performance monitoring?
IEC, “Photovoltaic System Performance Monitoring— Guidelines for Measurement, Data Exchange, and Analysis, IEC Standard 61724,” Geneva, Switzerland, 1998.
Why do we need performance parameters for grid-connected photovoltaic (PV) systems?
The use of appropriate performance parameters facilitates the comparison of grid-connected photovoltaic (PV) systems that may differ with respect to design, technology, or geographic location.
What are the safety standards for photovoltaic modules?
Safety standards ensure that PV modules demonstrate non-hazardous failure modes. Performance standards include IEC 61215, which specifies requirements for the design qualification and type approval of terrestrial photovoltaic modules suitable for long-term operation in general open-air climates, as defined in IEC 60721-2-1.
What are the performance standards for terrestrial photovoltaic modules?
Performance standards include IEC 61215, which specifies requirements for the design qualification and type approval of terrestrial photovoltaic modules suitable for long-term operation in general open-air climates, as defined in IEC 60721-2-1. It applies only to crystalline silicon module types.
What are the nameplate ratings on photovoltaic panels & modules?
The nameplate ratings on photovoltaic (PV) panels and modules summarize safety, performance, and durability specifications. Safety standards include UL1730, UL/IEC61730, and UL7103, a recent standard for building integrated photovoltaics (BIPV). Safety standards ensure that PV modules demonstrate non-hazardous failure modes.