Home battery guides
Battery only vs solar: which gives the better return? (calculator)
With a battery on a cheap tariff, solar only replaces cheap electricity. See the maths with your own numbers.
What size home battery do I need? (UK guide)
Work out the right home battery size in kWh for your UK home, based on your usage, solar panels and tariff.
How much does a home battery cost in the UK in 2026?
Real UK home battery prices in 2026, fully installed: what you pay per kWh, what's included and what drives the price.
Battery only, no solar needed: home batteries without solar panels (UK)
Can't fit solar panels? A home battery alone can still cut your bill by charging on a cheap overnight tariff. How it works, who it suits and what it costs in the UK.
Best energy tariff for a home battery in the UK (2026)
Which UK tariff saves the most with a home battery? We compare Octopus Intelligent Go, Go, Flux, Cosy, Agile, Economy 7 and other suppliers' EV tariffs, with a free savings calculator.
Solar battery storage in the UK: a complete 2026 guide
How solar battery storage works in the UK, what size you need, fully installed prices from Fox ESS, EP Cube, Hinen and Duracell, and how to add a battery to existing solar panels.
Is a home battery worth it in the UK? An honest guide
When a home battery saves money in the UK and when it doesn't: tariffs, solar, usage and finance, explained simply with a free savings calculator.
How does home battery storage work? (Simple UK guide)
A simple explanation of how home battery storage works: charging from solar or cheap tariffs, the inverter, the app, and what happens in a power cut.
Buying a home battery on finance: how it works (UK)
How to spread the cost of a fully installed home battery with £0 deposit finance through Emerald Solar's finance partner. Eligibility, steps and FAQs. Subject to status.