Sizewell B is a nuclear power station on the Suffolk coast. It is the UK’s only Pressurised Water Reactor.
The lifetime output of Sizewell B is 243TWh, enough to power every home in Suffolk for 178 years
Avoiding 85m tonnes of CO2 emissions*
Like taking 41m 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)
Have you ever wondered about nuclear power’s carbon footprint?
A new analysis of Sizewell B’s lifecycle has revealed the carbon impacts are not what you might expect.
Visit Sizewell B power station
The Visitor Centre at Sizewell is now open – it is recommended to call ahead of your visit 01728 653974.
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 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.
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
Safety and reporting
Our number one priority is safety. Find out about EDF's commitment to Zero Harm.
EDF and the Nuclear Decommissioning Authority hold regular joint meetings (Site Stakeholder Group or SSG) with local people, the media, council and emergency services representatives and local politicians to maintain regular communications about the nuclear site. This meeting is independently chaired.
Contact Sizewell B
EDF Sizewell B power station
Suffolk IP16 4UR
+44 (0)1728 653653
- Media requests:
+44 (0)1728 653378
+44 (0)1728 653258
Find out more about EDF
EDF aims to build a new power station with two reactors located on land next to the current Sizewell B station.
Jobs at EDF
Interested in working at EDF? Find out about our graduate programmes, apprenticeships, internships and current vacancies.