Several Forms and Precautions of Photovoltaic Power Generation Guarantee (3)
Precautions For Photovoltaic Power Generation Guarantee
2、System Efficiency Guarantee：
(1) For the EPC party, the design and construction of the photovoltaic power station shall be carried out according to the requirements of the owner. Avoid the design angle and height of the photovoltaic array, east-west distance, north-south distance, AC and DC equipment location, cable laying and wiring, etc., which have large deviations from the design drawings.
(2) For the agency operation and maintenance service provider, if the owner's equipment is improperly selected and the design deviates, the system efficiency will be recalculated in the software according to the completed design plan, and the new system efficiency will be guaranteed.
(3) The actual system efficiency test of the photovoltaic power station should use high-precision radiation instruments and have the instrument calibration results of the authoritative organization. If the actual system efficiency monitoring data is less than a complete year, temperature correction shall be carried out.
(4) If the capacity of the photovoltaic power station does not meet the design requirements, or the capacity of the photovoltaic power station is gradually connected to the grid, the calculation shall be based on the actual average grid-connected capacity.
(5) Calculation of system efficiency PR:
PR=Should power generation/(peak sunshine hours*average grid-connected capacity)
Among them, the number of hours of peak sunshine = annual slope radiation / STC light intensity (radiation unit: kWh/m2; STC light intensity: 1kW/m2)
Receivable power generation: gateway power + power generation loss
About the above, several forms and precautions of power guarantee are for your reference~
