EDF supercharges Sundays with free electricity offer
EDF is supercharging Sundays with free electricity for customers who sign up to its ‘Sunday Saver’ challenge as a reward for using less electricity during peak times.
‘Sunday Saver’ challenges customers to shift some of their electricity use away from weekday peak hours (4pm – 7pm)[i] to earn free hours of electricity the following Sunday. For example, customers who use 10% less electricity during the peak hours can get four hours of free electricity on a Sunday.
Challenges will take place monthly and start on the first Monday of the month[ii]. The more electricity customers shift, the more ‘free’ electricity they can earn. A 10% reduction in peak consumption would earn four hours of free electricity, a 20% reduction earns eight hours, 30% earns twelve hours and, for the super savers, using 40% less earns 16 hours of free electricity on a Sunday[iii].
This follows a trial of ‘Sunday Saver’ where 98% of participants earned four hours or more of free electricity on Sundays at least once.
Among those who participated in every challenge, 88% earned 16 hours or more of free electricity in at least one month, with participants collectively accumulating a total of 39,624 free hours over the last five months.
Research conducted by EDF[iv] has shown strong support from trial participants of the schemes, with 98% of those surveyed making a conscious effort to reduce their energy usage during peak times.
Participants have said that the easiest ways they have been shifting their consumption are by using the washing machine or tumble dryer at different times (51%), not using the dishwasher (39%), and moving their cooking time (22%).
68% of the group also said that the trial helped them understand more about the relationship between their usage and their carbon footprint.
Michael and Julie Parker from Derbyshire have earned a total of 192 free hours on Sundays over the course of the trial. Mr Parker said: “We’ve found the Sunday Saver challenge trial really simple – we’ve managed to reduce our electricity by ensuring we don’t do any clothes washing, use the dishwasher or charge a car between 4–7pm. With the free hours we’ve earned on Sundays, it’s been great to do as much as possible such as washing and charging things around the house. We would definitely take part again."
Rich Hughes, Director of Retail at EDF said: “Our Sunday Saver trial has already helped customers to earn free electricity, whilst also shifting their electricity usage away from peak times, reducing pressure on our energy grid.”
“With energy prices increasing and winter on the horizon, we’re excited to now be able to launch this to smart meter customers, enabling more people to do the things they love on a Sunday for free, saving them cash on their bills and reducing their carbon footprint.”
Some ways customers can shift their electricity usage away from peak times during the week:
- Put the dishwasher on at night or breakfast time instead
- Avoid using the washing machine and tumble dryer
- Unplug devices and chargers and use battery power instead
- Put aside gaming consoles and try something new as a family
- Batch cook at the weekend to save energy and time – just reheat during the week
- Charge electric car outside of peak times
To take part customers must have a working smart meter for their electricity supply and be opted into half-hourly meter reads[v].
Customers will be notified by WhatsApp or SMS to let them know if they have earned free electricity or they can track their performance in EDF’s exclusive Energy Hub platform, accessible via MyAccount online. Energy Hub also provides customers with a personalised view of their households’ energy use.
EDF has found that customers who are using Energy Hub to understand their usage are able to actively reduce their bills by up to £41[vi] a year as well as helping to cut their carbon footprint.
Customers can find out more about the Sunday Saver challenge here, and they can input their details to be notified when they can sign up for the next challenge.
[i] The peak times of 4pm-7pm, Monday to Friday, are subject to change
[ii] Please note that challenges may not run every month. We'll keep you informed about when each challenge is available, and you'll need to sign up for each one when EDF is running it.
[iii] Households can earn up to 16 hours of free electricity each week of the challenge to be used the following Sunday. The amount of free electricity a household can earn is subject to change. Free electricity will be subject to a fair usage cap, and EDF will notify customers via the Energy Hub of the fair usage cap at the start of each challenge. Our terms and conditions include full details and eligibility, which will be shared before you sign up to the challenge.
[iv] Research of 72 trial participants conducted by EDF between 3rd – 7th June 2024.
[v] Other eligibility applies, find out more here: https://www.edfenergy.com/energy-efficiency/sunday-saver-challenge
[vi] 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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