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The British Solar Blog

Home Batteries

Battery storage for UK homes — how it works, what to buy and whether it pays. Start with our cornerstone guide: home solar battery.

A Fox ESS home solar battery mounted on an exterior wall

Home battery warranties decoded: what 70% and 80% retention really promise, how throughput caps can end cover early, and how to work out your own number.

Black solar panels installed across a UK tiled house roof under blue sky

Solar panels power cut: why grid-tied systems shut off, how battery EPS/backup power works, and how UK homeowners can get real blackout protection.

A Fox ESS home solar battery mounted on an exterior wall

How to run a UK home battery smartly through winter: off-peak charging routines, depth-of-discharge care, and the tariffs that make it pay.

A Tesla Powerwall home battery wall-mounted beside an isolator switch

Octopus Agile + solar + battery UK guide: price-chasing mechanics, charge-cheap/discharge-peak, realistic savings for 2026.

A Tesla Powerwall home battery wall-mounted beside an isolator switch

Tesla Powerwall 3 UK review: integrated inverter, no-stacking limit, and how it compares to cheaper stackable batteries in 2026.

An AlphaESS home solar battery storage unit mounted on a brick wall

GivEnergy vs Fox ESS home batteries compared honestly: specs, warranty small print, app quality, and who each suits in 2026.

A Sigenergy stacked home battery storage system

Beginner's guide to UK home solar batteries: how storage works, sizing, top brands, real costs and whether it pays off in 2026.

A Tesla Powerwall home battery wall-mounted beside an isolator switch

Independent 2026 UK ranking of GivEnergy, Sunsynk, Fox ESS, Sigenergy and Tesla Powerwall 3 by cost, warranty, app and backup.