The Default Tariff Cap came in to force on 1 January 2019 – a temporary cap on standard variable tariffs and fixed term default tariffs. In August 2020, Ofgem announced that the Default Tariff Cap would continue to protect default prepayment meter customers after the CMA Prepayment Meter Price Cap expired at the end of 2020. In accordance with the licence requirements, we run an update process twice a year, to ensure the default tariff cap reflects changes in the cost of supplying energy.
On 5 February 2021, we published the cap levels that will come in to force for the sixth charge restriction period (“cap period”) from 1 April 2021 – 30 September 2021. The updated versions of the underlying models have also been published.
You can view all historical information and publications relating to the design of the cap on our policy pages for the default tariff cap.
Guidance for energy customers
If you are an energy customer trying to find out your capped tariff price, please contact your energy supplier. You can find their contact information on an energy bill, or see Who is my energy supplier? You can also find answers to frequently asked questions on our consumer FAQ page.