img: dusk-lit home · warm windows

Battery Storage

Generate it in the day. Use it at night.

Battery storage turns a good solar system into a great one.

Why storage

Why storage changes the solar equation.

Without storage, surplus solar energy is either wasted or exported for a few pence per unit. A battery stores it instead — so you use your own free energy in the evening, when the sun is gone and grid prices are highest.

How it works

How it works in your home.

Panels generate

Daylight produces electricity on your roof.

Home uses directly

Your appliances draw what they need first.

Surplus charges battery

Anything extra tops up your storage.

Evening draw

Use stored energy after dark, for free.

Grid backup

Only if needed, as a fallback.

70–90%

of annual electricity needs covered for homes with solar plus battery storage.

Battery brands

Which battery is right for your home?

We work with the leading UK-compatible battery systems and recommend based on your solar array size, usage pattern and budget.

Battery	Capacity	Warranty	Best for
Tesla Powerwall 3	13.5 kWh	10 years	Larger homes, EV charging
Givenergy All-in-One	8.2 kWh	10 years	Mid-size homes, value
SolarEdge Home Battery	9.7 kWh	10 years	SolarEdge solar systems
Sungrow SBR	9.6 kWh	10 years	Modular, flexible sizing

FAQ

Questions about battery storage.

In most cases, yes. A retrofit battery can be installed alongside most existing solar systems — we assess compatibility as part of the process.

Battery payback is typically 8–12 years on its own, but much shorter when combined with solar or a time-of-use electricity tariff.

Standard grid-tied batteries do not provide backup power by default. Some models (like the Powerwall 3 with gateway) can be configured for backup — we advise at assessment.