Mine water heat scheme goes live in Wales
In a first for Wales, heat from a mine water treatment scheme (MWTS) is being used to provide heating for a nearby business.
Through its Heat Strategy for Wales, the country has recognised the potential of mine water heat as a viable option to support the transition to renewables.
As part of this commitment, the Mining Remediation Authority identified an opportunity for low-carbon heat recovery at its Lindsay MWTS near Ammanford, Carmarthenshire.
The Mining Remediation Authority operates over 80 MWTS sites across the UK. At Lindsay, the scheme pumps and treats an average of 25l of mine water per second. This process removes approximately 28kg of iron each day, preventing it from entering local watercourses.
Now, the heat from mine water is being harnessed to provide low-carbon heating at an industrial site. The mine water is naturally warm due to geothermal energy from the earth’s crust and heat retained from its time circulating through underground rock layers and former coal mines. Working in collaboration with local business Thermal Earth Ltd, the renewable heat project secured funding through Innovate UK’s New Innovators in Net Zero Industry, South West Wales initiative.
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