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What is the definition of “usable battery capacity”?

For BESS3 and BESS5, this is defined as the lesser of:

    • Usable Battery Capacity; or
    • Four hours multiplied by the Battery Inverter Output, or
    • 5 kWh per individual dwelling multiplied by the total number of dwellings (BESS3)
    • 10,000 kWh (For BESS5)

For BESS4, Battery Capacity is defined as the lesser of:

    • Usable Battery Capacity; or
    • Four hours multiplied by the Battery Inverter Output

‘Usable Battery Capacity’ is defined as 90% of the Nominal Battery Capacity as listed on the CEC Approved Battery list. Battery Capacity is the input used for PRC calculations.