Heysham 1

Heysham 1 is a twin-reactor nuclear power station on the north-west coast of England in Lancashire. Heysham 1 has been operating since 1983. Heysham 1 is scheduled to operate until 2024.

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Site Owner

Information is presented about wastes that existed at Heysham 1 at the stock date (1 April 2025) and were forecast to arise after this date.

For background information about this site owner, please refer to the Site Information Sheets in the 2025 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 2025 Inventory report. For official figures and essential information about how the data has been produced, always refer to the UKRWI 2025 published reports.

View all 2025 waste stream data sheets for Heysham 1

Waste groupings

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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 Heysham 1.

Waste category Volume (m3)
Reported at 1 April 2025 Reported future arisings Lifetime Total
HLW 0 0 0
ILW 302 3,110 3,410
LLW 91.0 14,200 14,300
VLLW 0 0 0
Total 393 17,300 17,700
Waste category Volume (m3)
Reported at 1 April 2025 Reported future arisings Lifetime Total
HLW 0 0 0
ILW 366 3,460 3,830
LLW 25.7 4,390 4,410
VLLW 0 0 0
Total 391 7,850 8,240
Waste category Volume (m3)
Reported at 1 April 2025 Reported future arisings Lifetime Total
HLW 0 0 0
ILW 507 4,840 5,350
LLW 45.1 4,770 4,810
VLLW 0 0 0
Total 552 9,610 10,200

Forecast waste arisings

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From Amersham and AWE Aldermaston to Winfrith and Wylfa – you can source site-by-site waste inventory data from sites across the UK nuclear industry here.