Coming Soon – Q3 2026
Take Back
Control Of
Electricity Prices.
The UK's first plug-in solar battery system.
No installer. No rewiring.
Plug in and start storing energy.
We respect your privacy. No spam, ever.
The Product
Why SolidFlex?
Reduce Imported Grid Energy
Lower your bills by using more of your own stored energy.
Beat Dynamic Electricity Pricing
Charge when prices are low, use when prices are high.
Works Alongside Existing Solar
Maximise your solar investment without changing your setup.
Plug-and-Play Installation
No installer. No rewiring. Just plug in and go.
Flexible. Compact. Smart
SolidFlex stores energy when it's cheap and releases it when you need it most. Built for UK homes. Built for real savings.
- Up to 22kWh usable capacity
- 3kW continuous output
- Smart app monitoring
- 10 year design life
- Stackable and easily expandable
Seen On
“
The prototype shown by Efixx is an early development model. The UK launch version will include higher performance hardware and additional features.
”