Understand electricity pricing and calculate what your appliances actually cost to run.
Every electrical appliance in your home uses electricity measured in kilowatt-hours (kWh). Your electricity supplier charges per kWh plus a daily standing charge. Understanding how to convert an appliance's wattage into actual running cost helps you compare options and avoid surprise bills.
The current Ofgem-capped electricity rate is 26.32p per kWh for Q4 2026. To calculate the cost of running an appliance, divide its wattage by 1,000, multiply by hours used, then multiply by the unit rate.
Read guide →The Ofgem energy price cap sets the maximum suppliers can charge per unit of gas and electricity. It does not cap your total bill — your actual cost depends on how much energy you use.
Read guide →To calculate the electricity cost of any appliance, divide its wattage by 1,000, multiply by the hours used, then multiply by your electricity rate in pence per kWh. Standing charges are excluded.
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