Energy Price Cap Calculator 2026
Estimate your annual and monthly energy bills under the 2026 Ofgem Energy Price Cap. Calculate costs accurately based on your usage profile and payment method.
Calculate Your Energy Costs
Select your fuel type, payment method, and typical usage to see a realistic breakdown of your estimated annual and monthly energy bills under the current Price Cap.
Tariff & Usage Details
Enter your household energy profile
Bill Evaluation
Estimated costs under the 2026 Price Cap
Current Ofgem Price Cap Rates
Representative maximum unit rates and standing charges for typical households (2026 estimates based on Ofgem methodology).
| Metric | Details | Representative Rate |
|---|---|---|
| Electricity Unit Rate | Per kWh consumed | ~24.50p |
| Electricity Standing Charge | Per day (fixed cost) | ~60.10p |
| Gas Unit Rate | Per kWh consumed | ~6.20p |
| Gas Standing Charge | Per day (fixed cost) | ~31.43p |
| Prepayment Premium | Additional unit rate markup | ~1.5p – 2.5p / kWh |
Energy Price Cap FAQ
Everything you need to know about the Ofgem Energy Price Cap and how it affects your household bills.
The Ofgem Energy Price Cap sets the maximum amount suppliers can charge per kWh of energy and per day for standing charges. For 2026, representative rates are approximately 24.5p/kWh for electricity and 6.2p/kWh for gas, though exact rates vary slightly by payment method and region.
No. The Price Cap limits the unit rate and standing charge, not your total bill. Your final cost depends entirely on how much energy you consume. Using more energy will still result in a higher bill.
Ofgem reviews and updates the Energy Price Cap quarterly, with new rates typically taking effect on 1st January, 1st April, 1st July, and 1st October each year, reflecting changes in wholesale energy costs.
Historically, prepayment meter tariffs have had slightly higher unit rates than Direct Debit tariffs under the cap. However, Ofgem has been actively working to narrow this ‘prepayment premium’ to ensure fairer pricing for vulnerable customers.