Smart Home Energy Check if you can save money on a Time of Use electricity tariff.
A free, independent, UK calculator for households with an EV, heat pump, or electric heating.
Honest results in 90 seconds.
We'll need some details — so maybe grab a few electricity bills first.
Show me my savingsHeads up: if you have solar or a home battery, our calculator doesn't yet factor in export tariffs or battery cycling. We're working on it — and we'll tell you when it's ready.