Home Battery Guides UK 2026
Store solar energy, save money, and power your home during outages
Home batteries let you store excess solar energy to use when the sun isn't shining. Combined with smart tariffs, they can significantly reduce your electricity bills and provide backup power during outages. With 0% VAT on home batteries (including standalone installations) until March 2027, now is a great time to invest.
Battery Guides
Battery Quick Facts
For 5-13.5kWh capacity, installed
Most manufacturers guarantee 70-80% capacity
Additional savings on top of solar
Why Add a Battery?
Maximise Solar Savings
- ✓Self-consumption: Use more of your solar energy
- ✓Time-of-use tariffs: Charge cheap, use during peak
- ✓Export optimisation: Export when rates are highest
- ✓Grid independence: Reduce reliance on expensive grid power
Backup Power & Peace of Mind
- ✓Power cuts: Keep essential appliances running
- ✓EV charging: Charge your car with stored solar
- ✓Smart home: Integrate with home automation
- ✓Future-proof: Ready for smart grid services
Bigger is not always better: a battery only helps while there is spare solar to store and evening demand to cover. See how 5, 10 and 15 kWh batteries compare in the solar and battery calculator's worked example, or compare products in our home battery guide.
Popular Battery Brands
Tesla Powerwall
13.5kWh, integrated inverter, sleek design
GivEnergy
UK brand, modular, excellent app
myenergi libbi
Works with Zappi EV charger
Sunsynk
Hybrid inverter + battery
Find Battery Installers Near You
Compare battery storage installers in your area. Many also install solar panels for a complete system.