Battery storage — the range
A battery holds your solar generation — or cheap off-peak electricity — until the house actually needs it, so less of your power is ever bought at the day rate. These are the systems we design with, and what each is genuinely known for.
Tesla
The benchmark — a solar inverter and battery in one box, with the slickest app in the business.
Bigger homes and bigger solar arrays — the integrated inverter simplifies new installs, and the high output will run almost anything in the house at once.
GivEnergy
The British contender — designed in the UK, with class-leading tariff integration and a 12-year warranty.
Smart-tariff households — it speaks fluently to time-of-use tariffs, and UK-based support with the longest warranty here makes it an easy recommendation.
Sigenergy
The modular one — hybrid inverter and stackable battery modules in a single tower you can grow later.
Homes that will grow into it — start with what you need today and click on more capacity later, with an optional DC EV-charging module in the same tower.
Fox ESS
The value pick — dependable modular LFP storage at the sharpest price per kilowatt-hour.
Budget-led projects that still want quality cells and a long warranty — the most storage per pound in the range, paired with a Fox or third-party inverter.
myenergi
The ecosystem player — from the British maker of the zappi charger, so battery, EV charging and solar diversion all think together.
Homes already running — or planning — a zappi EV charger or eddi solar diverter: one app, one ecosystem, every kilowatt-hour sent where it earns most.
Figures are manufacturer-published typical values and vary by configuration and grid connection. The right battery is sized from your real usage — evening load, tariff windows and what your solar produces. Oversizing wastes money, undersizing wastes sun; standard bundles do both.
The battery charges when electricity is cheap or free — from your roof, or overnight on an off-peak tariff — and discharges at peak times. The saving lives in that gap, which is why the right size comes from your evening load and your tariff, not from a standard package.
Oversizing wastes money and undersizing wastes sun. We look at how your household actually uses electricity, choose AC or DC coupling to suit the system, install in a safe ventilated spot and set up the tariff scheduling before we leave.
Book the free surveyOnly if the system is specified with backup capability — most standard setups shut down with the grid for safety. If backup matters to you, say so at survey and we design for it.
It can be — charging cheap overnight on a time-of-use tariff and using it at peak still cuts bills. It's strongest paired with generation, though.
Manufacturer warranties here run ten to twelve years, and the LFP cells they all use are built to keep the majority of their capacity through it.
Garage, utility, understairs or an external enclosure — somewhere cool, ventilated and out of the way. It's a wall or floor unit about the size of a small suitcase.
