Co-production of geothermal energy and low-carbon lithium

Geo3 aims to unlock Cornwall’s low carbon potential for clean growth.

Renewable energy and low carbon technologies are vital to help combat climate change. Lithium is a key enabler due to its use in battery technologies, for electric vehicles (EVs) and grid storage of energy.

Cornwall is underlain by hot, lithium-enriched granite rocks. The potential to extract  lithium and geothermal energy from  lithium-enriched geothermal waters which circulate naturally represents a major opportunity for Cornwall and the UK. Geo3 is a wholly-owned subsidiary of  Cornish Lithium Ltd. and is based at  Cornish Lithium’s Geothermal Waters Test Facility at United Downs near Redruth in Cornwall.

About Cornish Lithium

Cornish Lithium was founded in 2016 and is a highly innovative mineral exploration and development company focused on the environmentally sustainable extraction of lithium from geothermal waters and hard rock in the historic mining district of Cornwall, UK. The Company has secured agreements with the owners of mineral rights over a large area of the County and is using modern technology to re-evaluate the region for low carbon extraction of lithium and other vital technology metals. A secure domestic supply of such metals is considered vital to the industrial strategy of the UK as it moves towards the production of electric vehicles and renewable energy sources.

For more information about Cornish Lithium visit

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