Performance Ratio (PR): the performance ratio measures the quality of a PV plant and its ability to convert available sunlight into usable energy, taking into account all losses..
Performance Ratio (PR): the performance ratio measures the quality of a PV plant and its ability to convert available sunlight into usable energy, taking into account all losses..
It is defined as the ratio of the final energy output (kW h) of the system to that of its nominal d.c. power (kW)..
The performance ratio is a measure of the quality of a PV plant that is independent of location and it therefore often described as a a quality factor..
Performance Ratio based on measured production divided by model-estimated production over the same time period, considering only when the plant is “available.” [pdf]
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