Magnox Limited is inviting suppliers to collaborate on a major demolition project at its Trawsfynydd Site in Gwynedd, North Wales.

Interested companies are invited to join a webinar on 15 December 2022 to find out more about the project to reduce the height of the site’s 55-metre-tall reactor buildings by around a third.

The work represents a significant milestone in the programme to safely and sustainably decommission the site.

Angharad Rayner, Trawsfynydd Site Director, said:

“The reactor buildings have formed a recognisable landmark on the Snowdonia National Park skyline for decades, so the reduction in height will be a visible sign of our progress.”

Planning permission to reduce the height of the buildings has previously been granted to Magnox, following a public consultation, with significant internal structural work already completed.

Trawsfynydd reactor buildings when the height reduction work is complete.

Interested suppliers should have the capability to deliver value for the UK taxpayer while also maintaining the highest standards of safety and social value.

Further information on the project is available on the prior information notice here.

Sign up for the market engagement webinar starting at 2.00pm on Thursday 15 December 2002.


Zoe Young
Head of Strategic Communications
Tel: 07527 386542
Email: [email protected]

Notes to editors:
Magnox invites media outlets to visit, take a tour of the reactor buildings and learn more about this significant skyline change project from Angharad Rayner, Trawsfynydd Site Director.

Photo 1: Trawsfynydd reactor buildings indicating the height reduction level.
Photo 2: Trawsfynydd reactor buildings when the height reduction work is complete.

Magnox Limited is a wholly owned subsidiary of the Nuclear Decommissioning Authority (NDA), that manages and operates 12 nuclear sites and one hydroelectric plant in the UK.

The company is responsible for electricity generation at Maentwrog and the decommissioning of Berkeley, Bradwell, Chapelcross, Dungeness A, Harwell, Hinkley Point A, Hunterston A, Oldbury, Sizewell A, Trawsfynydd, Winfrith and Wylfa.