The California Energy Commission lists a weighted efficiency of 97.0–97.5% for GoodWe GWxxxxA-ES models, measured at six power levels and three DC voltages. The datasheet states a peak efficiency of 97.6%.
What sizes does the GoodWe GWxxxxA-ES come in?
The CEC list includes 6 models from 5 kW to 9.6 kW AC: GW5000A-ES, GW6000A-ES, GW7000A-ES, GW7600A-ES, GW8600A-ES, GW9600A-ES.
Is the GoodWe GWxxxxA-ES certified to UL 1741 SB?
Yes — the CEC Grid Support Inverter List shows UL 1741 SB for all models.
Can the GoodWe GWxxxxA-ES be used with a battery?
The CEC lists it as a dc-coupled hybrid (pv + battery).
What is the GW7600A-ES’s DC input voltage range?
CEC tested it at 230–480 V DC.
Sources
California Energy Commission — Grid Support Inverter List (solar and battery inverters), data as of Oct 7, 2026. Manufacturer-reported, confirmed by CEC against certificates and test reports.
GoodWe — manufacturer datasheet “A-ES Series Hybrid Inverter Up to 4 MPPTs, Single Phase”.
NLR (formerly NREL) — System Advisor Model CEC inverter library (version 2026.7.3).
NLR (formerly NREL) — PVWatts v8, NSRDB PSM v3 typical-year weather for Los Angeles, Palmdale, Riverside, Santa Clarita, Chula Vista, Huntington Beach.
California Energy Commission — PV Module List (module electrical data for the compatibility check).
Building permits — Southern California permit portals. Equipment matched from permit descriptions.
Cali-Graf calculations — formulas and inputs are shown next to each calculated value (efficiency from area, temperature-corrected voltages, string sizing, energy estimates).
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