What would it
actually cost you?
Straight calculators for UK home energy — heat pumps, solar, batteries and electric cars. Current Ofgem prices, your region, your house. No installer paying us to say yes.
Prices used: 26.11p per kWh electricity, 7.33p gas — Ofgem cap, 1 July – 30 September 2026.
Heat pump vs gas boiler
What it would actually cost to run, given your radiators. The answer is not always yes.
Heat pump price and grant
What one costs to fit, and what you pay after the £7,500 grant.
Solar panel payback
Generation and payback for your region and roof direction, not a national average.
Battery storage payback
Whether a battery pays for itself on a cheap-overnight tariff.
EV charging cost
Home versus public charging versus petrol, per year and per mile.
Smaller question: what does the tumble dryer cost? →
Running costs for every appliance in the house, from the dryer down to the kettle.
We will tell you when the answer is no
Most heat pump calculators are run by people who fit heat pumps, so they always say yes. At current prices, a heat pump on small existing radiators can genuinely cost more to run than the gas boiler it replaced. That depends almost entirely on your radiators, and ours says so.