Estimate annual energy loss from curtailment due to grid constraints, negative pricing, or export limitations.
Input Parameters
Results
--
Energy Lost to Curtailment
MWh
--
Annual Curtailment Rate
%
--
Revenue Lost
$
--
Effective Annual Generation
MWh
Note: Curtailment is increasing in high-solar regions. CAISO curtailed 2.4 TWh of solar in 2023. Battery storage and flexible loads can reduce curtailment losses.
Reference
Avg Hourly Output = Annual Gen / 8760
Peak Hour Output = Avg x 2.5 (solar peaking factor)
Energy Lost = Peak Output x Curtail Hours x Curtail %
Curtailment Rate = Energy Lost / Annual Gen x 100
Revenue Lost = Energy Lost x Energy Price