EDF's free electricity offer returns in October
EDF’s Sunday Saver Challenge will return in October, giving customers the opportunity to earn free electricity on Sundays over the next month.
‘Sunday Saver’ rewards eligible customers who shift their electricity usage away from weekday peak hours (4pm–7pm). The more energy they move to off-peak times, the more free electricity they can unlock the following Sunday - ranging from four to a maximum of 16 hours. EDF is the only supplier offering four Sundays worth of free electricity.
Since the challenge began last September, the North East of England has emerged as the region that flexed their usage most, with 89.39% of customers successfully earning up to 16 hours of free electricity, closely followed by the Midlands at 88.76% and Scotland at 88.45%.i
In London, whilst the capital’s Sunday Savers didn’t achieve the flexible feats of their Northern and Scottish counterparts, an impressive 86.83% of customers still achieved free electricity.
Across all regions of the UK, 88% of participants who have taken part have received at least four free hours, with over £2.73 million being credited on customers’ bills since the scheme began.
“With the new price cap level coming into effect seeing the average annual energy bill rising by 2% from 1st October we’re continuing to provide great value through our Sunday Saver challenge”, said Rich Hughes, Director of Retail at EDF.
“It’s fantastic to see how many customers are earning up to 16 hours of free electricity, especially in regions like the North East of England and Scotland. We’re excited to give even more customers the chance to save money and enjoy doing the things they love on a Sunday this October.”
Registration is now open and will close on Sunday 12th October 11:59pm, ahead of the challenge starting on Monday 13th October. The Sundays where customers will be able to use their earned free electricity will be 19th and 26th October, 2nd November and 9th November. Customers can find out more about the Sunday Saver challenge here and sign up for the challenge via MyAccount.
To take part customers must have a working smart meter for their electricity supply and be opted into half-hourly meter reads.ii
i. Based on Sunday Saver data from 2nd September 2024 to 1st September 2025, the data shows the percentage of individual people in each region of the UK who earned free electricity hours in the Sunday Saver Challenge. Full results are:
| Region | % of customers achieving minimum 4 free hours |
| London | 86.83% |
| South of England | 86.32% |
| South Wales | 88.12% |
| South East of England | 88.34% |
| North Wales | 88.43% |
| North West of England | 88.52% |
| South West of England | 88.32% |
| East and West Midlands | 88.76% |
| Scotland | 88.45% |
| North East of England | 89.39% |
ii. Other eligibility applies, find out more here: https://www.edfenergy.com/sundaysaver
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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