Sizewell B power station

Sizewell B is a nuclear power station on the Suffolk coast. It is the UK’s only Pressurised Water Reactor.

In 2020 Sizewell B generated low carbon electricity for 2.3 million homes

Avoiding 3m tonnes of CO2 emissions*

Like taking 1.3m cars off UK roads for a year

About Sizewell B

  • Station Director: Robert Gunn
  • Reactor type: 1 Pressurised Water Reactor
  • Total supply to the national grid: 1198 MW
  • Start of construction: 1988
  • Start of generation: 1995
  • Estimated decommissioning date: 2035
  • People: Approximately 520 full time EDF employees plus over 250 full time contract partners
  • Daily plant status - find out which reactors at our eight nuclear power stations are in service and what they are generating (data updated on weekdays)

Visit Sizewell B power station

Due to Coronavirus all site tours have been suspended and our exhibition centre remains closed, we are also unfortunately unable to take any forward bookings at this time. We will update our website with further information when the situation changes.

Sizewell B is the UK’s only Pressurised Water Reactor (PWR) and also the most modern nuclear power station in the UK. Our visitor centre offers a unique insight into this technology in our interactive exhibition space. 

To enhance the visitor experience, you can also pre book a tour of the power station. For school visits, a classroom is also available where young people can get involved in a wide range of STEM activities. 

Tour Information

Tour time: Visitors are advised to allow up to 3 hours for a site visit, this includes a safety brief followed by a walking tour of the power station. Please contact us for more details. 

Minimum age: Minimum age for the station tour is 11 years old 

Bookings must be made at least 3 weeks in advance.

You will be accompanied by a trained station guide. All site tours include a safety and security briefing and the issue of relevant PPE (personal protective equipment). The plant tour is a walking tour, mostly outdoors, and is 1.65 miles long.

Visitor Centre Opening Hours

Monday to Friday: 09:00 - 16.00 hours, except bank holidays.

Weekends can be accommodated, by prior arrangement only.


Dates for your diary:

Our events calendar will be updated as soon as our Visitor Centre has reopened.

Frequently asked questions

If you have any questions about the visitor centre, or about taking a tour, please check our FAQs.

If you have any questions about the visitor centre, or about taking a tour, please contact our visitor centre co-ordinator:

Telephone: 01728 653974
Address: Sizewell B power station, near Leiston, Suffolk. IP16 4UR

Find out more about Sizewell B

Contact Sizewell B

  • Address:
    EDF Sizewell B power station
    Nr Leiston
    Suffolk IP16 4UR

    +44 (0)1728 653653
  • Media requests:
    Marjorie Barnes
    +44 (0)1728 653378

    Community requests:
    Niki Rousseau
    +44 (0)1728 653258

Latest news and community updates

Format: 25/10/2021
Format: 25/10/2021

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