EDF Energy

EDF Energy in a nutshell

  • EDF Energy makes most of its electricity from nuclear energy.
  • It is the cheapest of the Big Six electricity and gas suppliers.
  • EDF Energy receives a fair number of complaints from customers but resolves them quickly.

EDF Energy, a result of mergers and acquisitions

EDF Energy, founded in 2002, stems from the merger of SEEBoard, London Energy and SWEB from 1998 to 2002. In 2009, EDF Energy acquired British Energy, the UK nuclear generator, making it the UK’s largest electricity generator.

EDF Energy corporate figures

EDF Energy is a subsidiary of Electricité de France, the French state-owned company. With over 13,000 employees, it supplies electricity and gas to 5.7 million customers. Under the leadership of CEO Vincent de Rivaz, EDF Energy made over £4 billion in revenue in 2013.

EDF Energy: one of the UK's vertically-integrated electricity and gas companies

EDF Energy owns and operates the UK's nuclear power plants and is increasingly invested in natural gas production and storage:

  • EDF Energy's nuclear, gas and wind power stations account for 17% of total electricity generation capacity in the UK.
  • The EDF Energy-owned Humbly Grove natural gas storage facility accounts for 6.4% of storage capacity in the UK.

EDF Energy relies mostly on nuclear power

The following chart shows the composition of the EDF Energy electricity fuel mix. Given EDF Energy’s ownership of nuclear generation facilities it is not surprising that almost three-quarters of electricity supplied is nuclear. However, it is the Big Six supplier with the smallest renewable energy component.

Current EDF Energy prices

The following table shows average EDF Energy prices (based on an annual usage of 3,200 kWh for electricity and 13,500 kWh for gas) by tariff as of June 2014. None of the EDF Energy tariffs involve exit fees and compared to the other Big Six suppliers, EDF prices are very competitive, especially the Blue+Price Promise offer. However, it is not the cheapest energy supplier if one includes independent electricity and gas suppliers in the comparison.



Average cost duel fuel


- Variable tariffs
- No contract end date or renewal


Blue+Price Promise

- Fixed prices until 31 August 2015
- Notification if an offer with savings of over £ 1 / week becomes available


Blue+Price Freeeeze

- Fixed prices until 31 July 2017



Contacting EDF Energy

Contacting EDF Energy by telephone

There are various numbers (potential) customers can use to contact EDF Energy. Operating hours are good in the week but less extensive on Saturdays, compared to other suppliers on the UK energy market.


Contact number(s)

Operating hours

Account enquiries

0800 056 7777

0800 056 5927

Mon-Fri, 8am-8pm; Sat, 8am-2pm

Sales enquiries

0800 096 2260

Mon-Fri, 8am-8pm; Sat, 8am-6pm

Pay As You Go

0800 015 1733

Mon-Fri, 8am-8pm; Sat, 8am-2pm

Energy efficiency advice

0800 051 1905

Mon-Fri, 8am-8pm; Sat, 8am-2pm

National Gas Service Emergency Line

0800 111 999


Contacting EDF Energy by mail

Letters to EDF Energy can be sent to:

EDF Energy
334 Outland Road

EDF Energy customer reviews

EDF Energy complaints performance

During the first quarter of 2014 (January-March), EDF Energy received just over 264,000 complaints, of which 84% were resolved within the next working day. This is a fair score compared to other suppliers. Most complaints (29%) were about billing, though a fair number were also about metering (16%), payments (15%) and customer service (12%). The last 8% of customer complaints were about transfers.

What customers say about EDF Energy

Selected positive reviews about EDF Energy

  • EDF Energy technicians react quickly

“After my fuse blew, my call to the EDF Energy customer service led to a technician coming to my house within an hour.”

  • EDF Energy is cheap and customer service reacts well

“I’ve been with EDF Energy for a year and a half and they’re still the cheapest supplier in my area. Although their customer helpline isn’t always immediate to pick up, they always get back to me if they don’t have a clear answer to my issue.”

  • EDF Energy supports nuclear power

“Nuclear energy is a good alternative to coal, and EDF Energy’s fuel mix is predominantly nuclear.”

Selected negative reviews about EDF Energy

  • EDF Energy customers wait a while before speaking to an operator

“[...] but my biggest issue with EDF Energy is that I always hold for at least 15 minutes before speaking to anybody - once, I waited 50 minutes and since nobody picked up, I hung up.”

  • EDF Energy sometimes changes tariffs and direct debits without warning

“My flat was empty for a while and upon my return I was surprised to find that EDF Energy had changed my tariff and my direct debit in consequence without any warning.”

  • No payment flexibility

“Though I understand that late payments are penalised, I was surprised to find out that I had been penalised for paying too early!”