Wylfa

Wylfa is located on a 50 hectare site on the north coast of Anglesey between Amlwch and Holyhead, Wylfa was the final Magnox plant to be built with an original design capacity of 1140MW. This design was the precursor to the next generation Advanced Gas Cooled Reactor (AGR) fleet.

During their generating life, the two reactors produced 232 terawatt-hours of electricity, enough to meet the daily needs of 1 million UK households.   When Wylfa finished generating on 30 December 2015 it also marked the end of Magnox reactor generation in the UK.

Since then, significant decommissioning progress has been made with almost 88,000 fuel elements safely removed during defueling.

Wylfa is also responsible for the Maentwrog hydro-electric power station in Gwynedd, North Wales.

On this page

Information is presented about wastes that existed at Wylfa at the stock date (1 April 2022) and were forecast to arise after this date.

Waste Inventory Data for Wylfa

For background information about this site owner, please refer to the Site Information Sheets in the 2022 UK Radioactive Waste Inventory report.

The following page presents information about radioactive wastes at the specific site selected.

Information about spent fuel and nuclear materials is presented separately in the relevant 2022 Inventory report. For official figures and essential information about how the data has been produced, always refer to the UKRWI 2022 published reports.

View all 2022 waste stream data sheets for Wylfa

Waste groupings

Show key

Activated metals
Activated other materials
Asbestos & other insulation materials
Concrete & rubble
Conditioned
Contaminated metals
Contaminated other materials
Desiccant & catalysts
Flocs
Fuel cladding & miscellaneous wastes
Fuel element debris
Fuels & uranium residues
Graphite
High level waste
Inorganic ion exchange materials
Miscellaneous contaminated materials
Mixed wastes
Oils & other fluids
Organic ion exchange materials
Plutonium contaminated materials
Raffinate
Sludges
Soil
Uranium & thorium contaminated material
Total
stored
waste
Future
arising
waste
Lifetime
packaged
waste

Waste categories

Showing results for data originating from Wylfa.

From 1 April 2022 there is a net decrease in the volume of HLW because accumulated highly active liquor is being conditioned, which reduces its volume by about two-thirds, and also because vitrified HLW is being exported to overseas customers.

Forecast waste arisings

Location

Site Owner

NDA