EDF offers up to 80 hours of free electricity in June's 'Sunday Saver' Challenge
EDF has confirmed its ‘Sunday Saver’ challenge will return in June, offering participants a unique chance to earn up to 80 hours of free electricity.
The challenge starts on Monday 2nd June and runs throughout the month giving participants the chance to earn hours of free electricity to use across not four, but five Sundays: 15th, 22nd and 29th June, as well as 6th and 13th July.
£2million has been credited onto Brits’ bills[i] so far through EDF’s Sunday Saver challenge, which encourages customers to shift their electricity use away from weekday peak hours each week (4pm – 7pm), to earn between four and 16 hours of free electricity the following Sunday.
EDF is the only energy provider offering five Sundays of free electricity in June and July, helping customers save cash on their bills and make the most of their weekends this summer.
Rich Hughes, Director of Retail at EDF, commented: “We launched Sunday Saver to help customers save cash and carbon, all while contributing to a more sustainable energy system. We’re thrilled that over 154,000 customers have already benefitted from free electricity as a reward for adjusting their daily usage habits and helping to ease the strain on the electricity grid during peak times.”
More than 154,000 customers have benefitted from Sunday Saver since the challenge began last year, earning over eight million free hours of electricity.
The Sunday Saver Challenge continues to receive positive feedback from participants:
- "I love EDF - I get loads of free electric if I do the reduced power usage between 4-7pm. Sometimes I’ve had whole days of free power.”
- "Having a set day, time and goal has really allowed me to get some jobs done, I would otherwise have put off, but with a free electricity day it really triggers my healthy boundaries!"
- "I love EDF’s Sunday Saver challenge and the ability to monitor my usage and cost in Energy Hub.”
Customers can sign-up for the June challenge now until Sunday 1st June at 11:59pm, ahead of the challenge starting on Monday 2nd June.
To be eligible, customers will need a working smart meter for their electricity supply that is sending EDF readings every 30 minutes[ii].
Learn more about the Sunday Saver challenge or sign up via MyAccount.
Progress can be tracked on Energy Hub via MyAccount, where users can access a personalised view of their household’s energy use. EDF has found that customers using Energy Hub to understand how energy is being used around their home can actively reduce their bills by up to £41[iii] a year, while also helping to cut their carbon footprint.
[i] Based on Sunday Saver data from Sept–December 2024, March–May 2025, and free electricity days on 25 December 2024 and 14 February 2025: 8,321,286 kWh × £0.2351 per kWh (average unit rate) × 1.05 (VAT) = £2,054,151
[ii] Other eligibility applies, find out more here: https://www.edfenergy.com/sundaysaver
[iii] Save around £41 with Energy Hub. Savings estimated on a sample of 2000 customers who started using Energy Hub between January 2022 and March 2022 and logged in 5+ times between April 2022-April 2023. Costs based on Ofgem's typical annual consumption positioned against projected Standard (Variable) consumption costs of April 2024 to March 2025. Ofgem estimates the typical household in Britain uses 2,700kWh of electricity, 11,500kWh of gas.
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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