The energy price cap is set by Ofgem and limits what suppliers can charge per unit and for standing charges on default tariffs. When the cap changes—usually every three months—it affects standard variable and other default rates. This tool does not guarantee savings; it helps you see how cap changes might affect your bill and why it can be useful to compare current tariffs. For official cap levels and dates, always check Ofgem.
Price cap impact
Enter the current and new price cap (p/kWh) and your annual usage to see a summary of the change and impact scenarios. This does not guarantee savings. For official cap levels see Ofgem.
Frequently asked questions
- When does the price cap change take effect?
- The price cap is typically updated every three months (January, April, July, October). Ofgem announces the new level in advance. The exact dates and levels are published on the Ofgem website.
- Will the cap protect all households equally?
- The cap applies to default and standard variable tariffs. It limits the unit rate and standing charge that suppliers can charge. Actual bills still depend on how much energy you use. Households on fixed deals are not directly bound by the cap during their fix.
- How can switching help navigate cap changes?
- Comparing tariffs lets you see current fixed and variable offers. You may choose to fix to lock in a rate or stay on a variable tariff that follows the cap. We do not guarantee savings; use a comparison site or Ofgem-approved service to see what is available for your usage and area.
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