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EDF customers can beat the price cap with cheapest fixed tariff of major suppliers

Posted August 26, 2025
  • Households can fix and avoid the upcoming price cap increase, saving more than £100 with EDF’s Simply Fixed Aug26v11 against EDF’s October price cap prediction
  • EDF’s latest price prediction forecasts the October price cap will increase by £24, rising to £1,744

EDF is helping customers stay ahead of predicted increases to energy costs with the launch its new Simply Fixed Aug26v11 tariff, which offers households the cheapest energy-only fixed price among major suppliers[1]

EDF’s Simply Fixed Aug26v11 12-month tariff, priced at £1,634 for an average dual fuel customer paying by direct debit, is £86 cheaper than the current price cap (£1,720), and £110 cheaper than EDF’s October price cap prediction (£1,744)[2]. Ofgem will announce the Q4 price cap level tomorrow (27 August). 

As Britain’s biggest generator of zero carbon energy, EDF has a deep understanding of the energy market and is able to predict future changes to the Ofgem energy price cap. EDF’s price cap prediction service forecasts a slight upward trend in the price cap for upcoming quarters, with further increases in April and July 2026. Based on the supplier’s current predictions, EDF’s new fixed tariff will remain at least £65 cheaper than Ofgem’s price cap over the next year.

Rich Hughes, Director of Retail at EDF, said: “Although we’re predicting a modest increase of £24 to the Q4 price cap level, it’s important for households to remember the energy market remains very volatile. We’re seeing significant changes in our price cap predictions week on week, driven by fluctuations in wholesale energy costs.

“We know price uncertainty can be worrying for households – especially when heading into winter – which is why we’re pleased to launch our new fixed deal which guarantees savings of over £100 against our new price cap prediction.”

The tariff is available to both new and existing customers when signing up directly through EDF, and exit fees of £50 per fuel will apply. The deal may be withdrawn at any time due to volatility in global wholesale prices.

Last week EDF launched its £30 million Winter Support Package, funding debt relief, tailored one-to-one support, and expanded partnerships with charities and advice agencies. Last year, EDF provided advice and support to 383,000 households struggling with their energy bills and has already reached 237,000 so far in 2025, with volumes expected to exceed last year, thanks to new partnerships that extend the reach of support. 

EDF frequently offers the cheapest fixed rate deals amongst major suppliers and is helping more customers save cash on their bills this month with the return of its ‘Sunday Saver’ challenge. ‘Sunday Saver’ encourages customers to shift some of their electricity use away from weekday peak hours (4pm – 7pm)[i] to earn up to 16 free hours of electricity the following Sunday. Sunday Saver customers have already earned over 9.6 million kWh of free electricity (5.6 million hours), with over £2.4 million being credited onto Brits’ bills[3].

For an extra £100 off your energy bill and £75 off for a friend, EDF customers can also sign up to ‘Refer a Friend’ via MyAccount online. 

Existing customers can sign up to the new tariffs in MyAccount or in the EDF app with new customers able to join here


[1] Cheapest based on straight price for price comparison of nationally available tariffs, not including add ons. As of June 2025, the Big Six energy utility companies in the UK are: British Gas, Octopus Energy, E.ON Next, Ovo, EDF, and Scottish Power: https://www.ofgem.gov.uk/retail-market-indicators. Based on prices as of 26th August 2025.

[2] From 1 July to 30 September 2025 the energy price cap is £1,720 a year. EDF forecasts the energy price cap will increase to £1,744 a year for the period between 1 October and 31 December 2025. Figures are based on Ofgem ‘typical’ consumption. 'Typical' yearly consumption is 2,700kWh electricity and 11,500kWh gas based on a national average of regional prices for a dual fuel customer with a standard electricity meter who pays by Direct Debit. 'Typical' consumption assumes the price cap does not change over a full year. In reality, the price cap changes every three months. Fixed tariff rates remain the same for the duration of the tariff and are not covered by the energy price cap.

[3] Based on Sunday Saver data from Sept–Dec 2024, Mar–Jun 2025, and free electricity days on 25 Dec 2024, 14 Feb 2025, July 12th 2025 and August 10th 2025: 9,623,000 kWh × £0.2499 = £2,404,788 (kWh and £ rounded to nearest 1,000 where appropriate).

About EDF

EDF is driving the transition towards An Electric Britain – a secure, affordable, low-carbon future for everyone. As Britain’s biggest generator of zero carbon electricity, we are investing more than £100 million weekly in Britain’s electricity infrastructure. We supply millions of customers with electricity and help homes and businesses switch to electricity for heating, transport and industrial processes.

We operate five nuclear power stations and more than 35 onshore wind farms and three offshore wind farms. Since 2009, EDF has invested almost £9 billion in the nuclear fleet to improve reliability and extend station lifetimes. The five generating stations currently supply about 12% of the UK’s electricity demand.

EDF is building the UK's nuclear renaissance with the construction of a new nuclear power station at Hinkley Point C. We are a minority investor (12.5%) in and major supplier to a replica plant at Sizewell C in Suffolk. Hinkley Point C and Sizewell C will provide low carbon electricity to meet 14% of UK demand and power around 12 million homes. EDF Group companies Framatome and Arabelle Solutions have a presence in the UK and manufacture critical equipment such as reactor pressure vessels and turbines.

EDF is enabling its 5 million customers, both in business and at home, to choose electric solutions that save cash and carbon, whether it is buying an electric car, generating and storing electricity, selling energy back to the grid or installing solar panels or a heat pump. In 2025, EDF’s Customers business was ranked as one of the Sunday Times’s Best Place to Work.

It is also one of the UK’s leading developers of renewable energy through EDF power solutions UK and Ireland. We have more than 2GW of renewable generation in operation and over 10GW in construction, planning and development across a range of technologies including onshore and offshore wind, solar and battery storage.

We are one of the largest suppliers to British business and a leading supplier of innovative energy solutions that are helping businesses become more energy independent. In addition, the company’s energy services business, Dalkia, one of the UK and Ireland’s largest technical service providers.

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