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- Britain’s largest generator of zero-carbon energy
- Free electricity on Sundays if you cut your usage during peak hours
- The worst for customer satisfaction
- Slightly higher than average complaint numbers
- Poor value for money
EDF Energy claims to be Britain’s biggest generator of zero-carbon electricity, which it harvests from nuclear energy, solar and wind power. These sources make up 64% of its overall fuel mix.
Owned by the French state-owned company EDF (Électricité de France), EDF Energy was created in 2002 when it took over a number of British energy companies and power stations.
EDF Energy was one of the former “Big Six” energy companies in Great Britain. It’s one of the largest suppliers now and has 10% of the home electricity market and 8% of the home gas market, according to the latest figures from the energy regulator Ofgem for the first quarter of 2026.
It came bottom in almost every category of our Expert Reviews Home Energy Awards 2026. In our survey, just 13% of its customers said 10 on a scale of 1-10 when asked how likely they are to recommend EDF Energy to others – the lowest among all the providers we rated. This pales in comparison to the 35% rating for the best supplier, Octopus Energy.
EDF was the poorest rated for customer service too, with an average of just 22% of customers saying they were very satisfied with the four aspects of service we asked about. This was way behind the 38% achieved by Octopus.
To find out how to get the best energy deal for you, visit our guide to the best energy suppliers.
What kind of tariffs does EDF Energy offer?
EDF Energy has a tracker tariff that gives you a discounted standing charge – currently until January 2028 – and a fixed tariff.
It also offers a number of smart tariffs – for EV owners with cheaper electricity at night, for households with an air source heat pump with cheaper rates twice a day and solar tariffs. These include tariffs for exporting your surplus energy to the grid through the Smart Export Guarantee (SEG). All suppliers with at least 150,000 customers must offer at least one SEG tariff.
All EDF’s smart tariffs are backed by 100% zero carbon electricity.
Does EDF Energy offer good value for money?
A very low proportion of EDF’s customers were satisfied with its value for money in our survey, with just 17% saying they were very satisfied. This was the lowest of all the suppliers in our survey and a sizeable 13 percentage points lower than for the award winner in this category, Utility Warehouse with 30%.
EDF Energy was bottom for customer trust too, where 17% said they completely trust it to act in their best interests. This compares with 33% for Utility Warehouse and 30% for Octopus Energy.
How good is EDF Energy at handling complaints?
When it comes to the number of complaints, EDF received a little more than the industry average. It had 966 per 100,000 customer accounts, according to the most recent data published by the energy regulator Ofgem. The best supplier for this in our survey was Octopus, which had just 476 over the same period.
EDF did better than Octopus at resolving them, though, with 62% resolved by the end of the next working day compared to 40% for Octopus, and 86% within eight weeks versus 79% for Octopus. The best was Utility Warehouse with 84% and 100% respectively.
Ofgem complaints data
| Complaints per 100,000 customer accounts | Industry average complaints per 100,000 customer accounts | Complaints resolved by end of next working day | Complaints resolved within eight weeks |
| 966 | 936 | 62% | 86% |
Notes: Data is for the second quarter of 2026.
How clear are EDF Energy’s bills?
It came bottom for the clarity of its bills, with 17% saying they strongly agree that the provider makes it simple to see exactly what they’re being charged for and why. The award winner in this category, Utility Warehouse, had a significantly higher percentage with 30%.
The next best supplier for bill clarity, E.ON Next, didn’t do much better than EDF, however, with 19% of customers strongly agreeing that their bills are clear.
How easy to use are EDF Energy’s website and app?
EDF Energy was rated fairly poorly for its website and app, coming second from bottom for its website and joint bottom with Ovo Energy for its app. Some 27% of its customers said its website was very easy to use. This compares with 41% for the top performer Octopus Energy. For its app, 29% said it was easy to use versus around half for the winner in this category, Octopus.
Should I choose EDF Energy?
The majority of the energy EDF Energy supplies is zero-carbon (mostly from nuclear energy rather than renewable sources), much of which it generates itself, but it received poor scores in most aspects of our survey.
EDF Energy was the worst supplier overall, taking into account value, how likely customers are to recommend it to others and how likely they are to renew with the supplier when their current tariff ends. Try Octopus Energy or Utility Warehouse for a better service.
