Buying a home battery
Steps, sizing and payback, from goal and usage to installer.
Which capacity fits your usage, what storage yields with hourly prices, and what it means if your supplier steers it.
No obligation: you go to the provider’s website and decide yourself. Advertisement: this page contains sponsored links.
A home battery earns in two ways: you use more of your own solar power, and you charge during cheap hours to discharge during expensive ones. How much that yields depends on the daily price spread and on a capacity that fits your usage.
Steps, sizing and payback, from goal and usage to installer.
The lightest way to start, without work in the meter cupboard.
Measuring first, because without it you cannot tell what storage is worth.
It depends on what you shift per day. Without an electric car most households land between 5 and 10 kWh; with a car or heat pump closer to 10 to 15 kWh.
The daily spread between the cheapest and most expensive hours, times what you store, minus charging losses. Home battery guide →
Only if you agree to it. You get a payment or a better tariff in return and give up some say over when it charges. Home battery guide →