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Estimate annual electricity and gas costs from your meter usage and a dated Ofgem Great Britain reference.
Editable example: 2,700 kWh electricity and 11,500 kWh gas per year.
Uses Ofgem’s rounded Great Britain direct-debit averages for 1 October to 31 December 2026: electricity 26.32p/kWh + 54.83p/day; gas 7.97p/kWh + 29.68p/day. Gas includes 5% VAT; electricity has no VAT in this period. This applies one rate period to a full year; it is not a forecast or supplier quote.
Regional and supplier rates vary. Northern Ireland, multi-rate meters, billing-date proration, discounts, solar exports and technology savings are outside this estimate. Reviewed 1 October 2026. Annual kWh is added to the URL; consented functional storage is required to save inputs.
Estimated annual energy cost at the entered kWh
£1,935.65
Monthly average: £161.30. This annualises one GB reference rate set across 365 days of use and standing charges; it is not a supplier quote, seasonal bill forecast or cap on the total bill.
Electricity 2,700 kWh + gas 11,500 kWh, each multiplied by the stated unit rate and 365 days of standing charge.
Usage and daily standing charges are included for both fuels using the selected reference rates.
| Fuel | Annual usage | Usage cost | Standing charge | Annual total |
|---|---|---|---|---|
| Electricity | 2,700 kWh | £710.64 | £200.13 | £910.77 |
| Gas | 11,500 kWh | £916.55 | £108.33 | £1,024.88 |
| Combined total | 14,200 kWh | £1,627.19 | £308.46 | £1,935.65 |
Separates usage-driven costs from daily standing charges; exact amounts are listed below.
| Cost component | Amount |
|---|---|
| Electricity use | £710.64 |
| Electricity standing charge | £200.13 |
| Gas use | £916.55 |
| Gas standing charge | £108.33 |
| Total annual cost | £1,935.65 |
What-if sensitivity only: both fuels’ kWh change by the same stated percentage while reference rates and standing charges stay fixed. No future tariff or saving is predicted.
| Usage compared with entered kWh | Electricity kWh | Gas kWh | Annual total |
|---|---|---|---|
| 50% | 1,350 | 5,750 | £1,122.06 |
| 75% | 2,025 | 8,625 | £1,528.85 |
| 100% | 2,700 | 11,500 | £1,935.65 |
| 125% | 3,375 | 14,375 | £2,342.45 |
| 150% | 4,050 | 17,250 | £2,749.25 |
Compare this estimate with the unit rates, standing charges, meter and billing period on your current supplier bill. For support schemes, check the rules for your nation and circumstances directly with the official provider.
Estimate annual Great Britain household energy costs from entered electricity and gas use with a dated Ofgem average-rate reference. This is not a supplier quote or a household-support eligibility assessment.
The estimate applies rounded direct-debit average rates for 1 October to 31 December 2026 and 365 days of standing charges. It excludes Northern Ireland, individual regional or supplier tariffs, multi-rate meters, future prices, solar export income and technology-savings estimates.
These official resources support the dated Great Britain reference rates and explain how to find nation-specific energy information and support.