20.8 Site area (Hectares)
602 Current number of full time equivalents
232 Station lifetime output of electricity (TWh)

Current phase: Generation

Wylfa was the last Magnox power station to be built in the UK and is now the last operational Magnox station in the world. It stands on a 20.8 hectare site on the north coast of Anglesey between Holyhead and Amlwch. The site has only one running reactor and two operational turbo-generators, but with an output of around 460MW can supply more than 20 per cent of Wales’ electricity needs. Wylfa is also responsible for the 30MW Maentwrog hydroelectric station near Blaenau Ffestiniog.

Key near term activities

Its current focus is to safely, compliantly and with environmental responsibility optimise NDA revenue through electricity generation. The site also manages Maentwrog hydro-electric station which is situated near Trawsfynydd.

Station generation is now planned to continue until the end of 2015.


Reactor 2 was shut down on 25 April 2012. In July 2012 the site received permission to used the partially used fuel in Reactor 2 to fuel Reactor 1 – a process known as IRX.

The site exceeded its generation target safely and compliantly in 2012/13. In October 2013 Magnox has submitted a Periodic Safety Review (PSR) to the Office for Nuclear Regulation (ONR). The PSR submitted to the ONR includes a review of the safe operation of the site for the next 10 years and includes generation to the end of December 2015.


Small and Medium Enterprises (SMEs) are a key link in our supply chain and Magnox is committed to supporting the SME agenda for growth.

Opportunities for contracts and ways to become a supplier are set out in the main Suppliers pages of this website.


Site Stakeholder Groups (SSG) are long-established at each of the Magnox sites and provide an opportunity for stakeholders to find out more about the work being undertaken there.

Independently-chaired, the SSG meets regularly to examine our work, as well as that of the Nuclear Decommissioning Authority (NDA) and regulators. The SSG’s membership includes local councillors, non-governmental organisations and other interested stakeholders.

If you would like to apply for socio-economic funding please visit: www.magnoxsocioeconomic.com

Community Events

8th May 2014

Wylfa SSG meeting


Eleth/Eilian Rooms Wylfa Information Centre

13th November 2014

Wylfa Site Stakeholder Group meeting (delayed from 11 September)


Eleth and Eilian Rooms, Wylfa Information Centre

Meeting Documents:

21st May 2015

Wylfa Site Stakeholder Group meeting


Classroom, Wylfa Information Centre

19th November 2015

Wylfa Site Stakeholder Group meeting


Eleth and Eilian Rooms, Wylfa Information Centre

View All reference documents

Contact Secretariat:

Karin White, Site Stakeholder Secretariat
Wylfa Site, Cemaes Bay, Anglesey, LL67 0DH.
01407 733952

Contact us