Goodwe Solar inverter review - Updated November 2025
Goodwe have a new all-in-one inverter, battery and backup product...the ESA
Confusingly, the product is actually CEC approved as EHA not ESA.
The approved models are:
GW5K-EHA-G20 - 5kW single phase.
GW6K-EHA-G20 - 6kW single phase.
GW8K-EHA-G20 - 8kW single phase.
GW9.999K-EHA-G20 - 9.999kW single phase.
Why the last one is not 10kW is beyond me.
Imitation is the sincerest form of flattery
This product is a copy of Sigenergy's amazingly successful Sigenstor range.
It looks the same, right down to the lights on the front.
5kWh and 8kWh battery option, mix and match - same as Sigenergy.
Parallel-connected, DC-DC converters (optimisers) in each battery - same.
Thermal resistance panels - same.
Mica sheets between rows of cells - same.
Aerosol fire extinguisher - same.
Pressure relief valves - same.
The Sigenergy product has a well priced DC EV Charger option, bi-directional too (V2H)
It uses a lot of AI too, most of it very helpful.
None of that in the Goodwe clone, or at least, not yet.
Goodwe have been around a long time in the Australian market.
They have always been high on features, below average on price.
They aren't the most reliable of brands but they aren't horrible either.
Their support service is good and warranties replacements have been reasonably prompt.
Prompt means about 2 weeks downtime which is about normal for getting gear to us in WA.
If you have the money, buy Sigenergy.
If you want a clone at a lower price, then this is a decent choice.
Datasheet
Goodwe EHA/ESA all in one inverter and battery and backup.
or email
If you would like us to quote you on a Goodwe inverter, (or any other), please get in touch.
(We are in Perth, Western Australia).
This review was written by Andrew MacKeith, Solar4Ever service manager since 2011.
