1,000m underground central heating system planned

For the first time in the UK, a team of scientists and engineers, led by Newcastle University, plan to complete a twin borehole system that will allow warm groundwater to be continually cycled through rocks as deep as 1,000m.

Water at a temperature of around 30C will be brought up to the surface where it will pass through a heat exchanger before being sent back underground to be re-heated.

The project will provide renewable, clean energy for homes and businesses in the planned Eastgate eco-village in Weardale, County Durham, complementing four other forms of renewable energy which are to be harnessed there.

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