How the energy price cap works
Ofgem’s energy price cap sets maximum unit rates and standing charges for default tariffs — it does not cap your total annual bill. If you use more energy, you pay more; if you use less, you pay less.
The cap is reviewed quarterly. Regional network costs and how you pay (direct debit, standard credit or prepayment) can change the rates that apply.
What this calculator estimates
We multiply your annual kWh by the demo unit rate for electricity and/or gas, add a full year of standing charges, then split the total into monthly and weekly averages for budgeting.
Figures assume a single-rate electricity meter. Economy 7, multi-rate meters, warm home discount and supplier-specific discounts are not included in this MVP.
Why postcode matters
Price cap unit rates and standing charges vary by electricity distribution region and gas network area. Postcode lookup helps show where you live; until full Ofgem region mapping is imported, we may use a labelled demo region.
Why your bill may differ
Fixed tariffs, exit fees, debt repayments and time-of-use rates can make your real bill higher or lower than this estimate. Your supplier’s bill is the authoritative figure.
How UtilityPilot helps after the estimate
Upload bills to extract unit rates, periods and totals automatically, set payment reminders, and compare month-on-month spend with council tax, water and broadband in one household dashboard.
Explore more on free tools, read our blog, or return to the UtilityPilot home page.