Definition: A time-of-use tariff prices electricity differently through the day — cheap overnight windows (often 5-9p/kWh) and pricier peaks — rewarding households that can shift usage.
Who benefits
EV drivers and battery-storage owners benefit most: charging a car or home battery overnight at a quarter of the standard rate transforms running costs.
Requirements
You need a smart meter operating in half-hourly mode. Compare the peak rate carefully — a high peak can wipe out overnight savings if you can’t shift usage.
Estimate your numbers: try the free savings calculator or browse all upgrade guides.
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