GoodWe ESA Series
A fully integrated all-in-one solar inverter and battery system with UPS-level whole-home backup. Modular LFP modules, fanless design, and rapid 1C charge/discharge — engineered for SA homes that want simplicity and serious backup capability.
Why We Install the GoodWe ESA
The GoodWe ESA Series is a genuinely all-in-one system — the solar inverter and battery arrive pre-wired from the factory, which means faster installation and fewer potential failure points compared to separate inverter and battery combinations.
What sets the ESA apart is its backup capability. It delivers UPS-level whole-home backup at 63A — with no separate gateway required — and switches seamlessly when the grid goes down. For SA homeowners who've experienced blackouts during summer storms, this is a meaningful advantage.
The modular battery design uses 5 or 8 kWh LFP modules that can be mixed in a single stack, scaled up to 54 kWh, and expanded at any time. The fanless design keeps noise below 30 dB — quieter than most home appliances.
What Makes the ESA Different
All-in-one, pre-wired
Inverter and battery arrive factory pre-wired — faster installation, fewer connections, and a cleaner finished result on your wall.
UPS-level backup (63A)
Full whole-home backup at 63A output with no gateway required. Seamless switchover keeps your home running the moment the grid drops.
Modular & expandable
Mix 5 kWh and 8 kWh LFP modules in a single stack. Start with what you need and add capacity at any time — even mixing old and new modules.
1C rapid charge/discharge
The 1C charge/discharge rate means the battery can fully charge or discharge in one hour — maximising how much solar you capture and use.
Fanless, <30 dB
No fan means no moving parts to wear out and virtually silent operation — suitable for installation near living areas or bedrooms.
6-layer safety + AI AFCI
Advanced 6-layer battery protection and AI-driven arc fault circuit interruption (AFCI 3.0) as standard — one of the most comprehensive safety packages available.
Technical Specifications
What to Know Before You Buy
Best features
- Fully integrated all-in-one — inverter and battery pre-wired from the factory
- UPS-level whole-home backup (63A) with no gateway required
- Modular 5 or 8 kWh LFP modules — mix old and new batteries in one stack
- Scalable from 5 kWh up to 54 kWh per stack, multiple stacks in parallel
- 1C charge/discharge rate for rapid energy cycling
- Fanless design — extremely quiet at under 30 dB
- Advanced 6-layer battery protection and AI-driven AFCI 3.0
- Up to 200% PV oversizing for maximum solar harvest
- Faster installation than separate inverter + battery systems
Things to consider
- Single-phase only in the ESA range (three-phase requires a different GoodWe product)
- SEMS Portal monitoring app is functional but less polished than Tesla or Sigenergy
- Tied to GoodWe ecosystem — less flexibility to mix brands
- Newer product line — less long-term field data than Sungrow or Tesla in Australia
Best for: SA homeowners wanting an all-in-one system with serious whole-home backup capability and room to expand.
Ready to Install a GoodWe ESA?
Our SA-based team will size the right GoodWe ESA system for your home — with no pressure and no obligation.