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What is the energy price cap — and what does it mean for you?

Every few months the news shouts a new ‘energy price cap’ figure and everyone assumes that’s the most they’ll pay. It isn’t — and it’s one of the most misunderstood numbers in the country. Here’s what it actually does.

• What it caps. Ofgem limits the unit rate (pence per kWh) and the standing charge (that daily fee) on the standard variable tariff — and it’s a bit different by region.
• What it does NOT cap. Your total bill. Use more, pay more — the cap won’t save a busy four-person house from a big bill. It caps the rates, never the total. That’s the bit the headlines always skate over.
• That headline figure isn’t your bill. The number in the news is Ofgem’s estimate for a typical household (about 2,700 kWh of electricity and 11,500 kWh of gas a year). It’s a yardstick, not a prediction for your home — your own usage is what counts.
• It moves every quarter. The cap resets four times a year, and the standard variable rate moves with it — which is exactly why locking a fix can pay off when the cap’s on the way up. Fixed vs variable →

Joulely uses your region’s real cap rates against your actual usage — so you see what you’ll genuinely pay, not a typical-home headline.