The 2026 guide to UK smart tariffs

Smart tariffs reward homes that can move their usage. The trick is picking the one that matches the kit you actually have.

If you have an EV

Overnight tariffs with a four-to-six hour cheap window are hard to beat. Charge the car, top up the battery and run the dishwasher in that window.

If you have a heat pump

Look for tariffs with several cheap windows a day so the heat pump can pre-heat before each peak.

If you have solar and a battery

Tracker and agile tariffs pay off when Kova can export at the best half-hours and buy at the cheapest.