Cornish geothermal project leads government heat scheme

The UK’s first deep geothermal heat network is one of seven new projects to receive funding as part of a new government programme to decarbonise buildings across England.

The United Downs geothermal site in Cornwall
The United Downs geothermal site in Cornwall - GEL

Located near Truro in Cornwall, the Langarth Deep Geothermal Heat Network will use a borehole drilled to a depth of 5,275m to tap into heat from granite rocks beneath the United Downs Industrial Site. The geothermal energy will be piped around the local region to provide hot water and heating for around 3,800 homes and public facilities.

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The £22m Cornwall project is one of seven to share in £91m under the government’s Green Heat Network Fund (GHNF), a scheme which opened in March 2022 to public, private and third-sector applicants in England. Anticipated to run to 2025, the GHNF has a total funding pool of £288m.

"Continuing the legacy of the first GHNF projects to be announced in December, over £91 million more targeted support has been announced from the fund today to deliver low carbon heating across the country,” said Ken Hunnisett, programme director for Triple Point Heat Networks Investment Management, delivery partner for the GHNF.

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