Battery Storage Installation
Store your solar energy and use it when you need it most
About Battery Storage Installation
Battery storage systems allow you to store excess solar energy generated during the day for use in the evening and overnight. Combined with smart tariffs like Octopus Flux or Intelligent Go, you can charge cheaply overnight and sell stored energy during peak periods. Systems from Tesla Powerwall, Fox ESS, and SolarEdge include smart monitoring and emergency backup power during outages.
Key Benefits
Battery Storage Costs
Prices include installation and commissioning. All systems qualify for 0% VAT when installed with or added to solar.
| Battery | Capacity | Installed Cost | Warranty |
|---|---|---|---|
| Solis 5.1kWh | 5.1 kWh | £3,600 - £4,200 | 10 years |
| Fox ESS 9.6kWh | 9.6 kWh | £5,200 - £6,000 | 10 years |
| Tesla Powerwall 3 | 13.5 kWh + inverter | £7,000 - £11,500 | 10 years |
| Pylontech Force-H2 | 7.1 - 14.2 kWh | £3,500 - £5,000 | 10 years |
| Fox ESS EVO | 5 - 10 kWh | £3,800 - £5,200 | 10 years |
| BYD HVS/HVM | 5.1 - 22.1 kWh | £4,000 - £8,000 | 10 years |
Helpful Guides
Battery Storage Comparison
Fox ESS
Fox ESS EVO 9.6kWh
Installed from
£4,100
Capacity
9.6kWh
Power Output
5kW
Cycle Life
6,000+
Warranty
10 years
Chemistry
LFP
Smart Features
FoxCloud app
Strengths
- Strong value per kWh
- Easy AC-coupled retrofit
- Smart tariff optimisation built in
- Modular and expandable
Limitations
- Less well-known brand vs Tesla
- App interface less polished than Tesla
Prices include 0% VAT and full installation
Get a quoteOur Installation Process
Energy Assessment
We analyse your energy usage patterns and existing solar system to recommend the optimal battery size and configuration.
System Selection
We recommend the best battery system for your needs from leading manufacturers including Tesla Powerwall, Fox ESS, and SolarEdge.
Installation
Battery installation typically takes half a day. We handle all electrical connections, configuration, and testing.
Smart Setup
We configure your battery for optimal performance, set up monitoring apps, and help you switch to a compatible smart tariff if beneficial.
Typical Timeline
Works Well With
Generate your own electricity to store. Essential pairing for maximum battery value.
Store cheap overnight electricity for morning EV charging. Optimise with Octopus Go or Flux.
Store cheap overnight electricity to power your heat pump during peak periods. Reduces heat pump running costs further.
Financing
0% VAT when installed with or added to an existing solar system. Finance options available.
Warranty
- 10-year battery warranty (Tesla, Fox ESS)
- 10,000+ cycle lifespan
- 10-year workmanship guarantee
- Remote monitoring included
Popular Combinations
Combine services for greater savings. All figures based on typical East Anglia households.
Solar + Battery
The essential pairing. Store daytime solar for evening use and maximise self-consumption.
Solar + Battery + EV Charger
Store solar energy and charge your EV overnight. Eliminate grid dependence for transport.
Related Articles
Frequently Asked Questions
Ready to Start Saving on Energy?
Get your free, no-obligation survey and personalised quote. Our MCS-certified team is ready to help you switch to clean, affordable energy.