The UK’s first system drawing heat from deep underground to provide low-cost heating for nearly 4,000 homes is one of 7 innovative projects backed by government funding.

The Langarth Deep Geothermal Heat Network will involve drilling to a depth of 5,275 meters to extract the heat from granite rocks beneath the United Downs Industrial Site in Cornwall.

It is one of 7 state-of-the-art heating systems that will receive a share of £91 million from the government’s Green Heat Network Fund.