Cornwall’s “Hot Rocks” Project

Eden Project

by Jake

The “hot rocks” is a programme, located at site of the Eden Project , in which a large well system will be made deep underground. It will bring up warm water and release cold water to be heated up again. This will be made into electricity to power and heat homes around Cornwall. Around £1.8 million has been invested in to the project.

How does it work?

Firstly, two large holes will be mined 4.5 kilometres underground. Then water will be forced in the holes to be heated up by the rocks underground. After it is warmed, it will be pushed back up above the surface. Then it is made into electricity after it is pushed into and out of a turbine. The Eden Project said “On a site the size of a football pitch, the geothermal power plant would produce enough power for the Eden Project and around 4,000 houses, plus all the heat we can use, and more!”

How are they doing this?

The reason for this is because it is renewable (cannot run out/is replaced at the rate it is used) which means it can be reused and it is also clean and does not create any harmful substances or greenhouse gases. Consequently, it is much better for the environment. It has also been shown, in a recent survey, that geothermal energy could distribute enough power to 20% of the UK by itself. As well as this, the buildings take almost no room at all leaving space for other buildings or to expand, having no effect on the environment and having no environmental factors.

Although a large amount of money has been spent on this project, there are high hopes for its success and what it provides for Cornwall and possibly many other homes in and around Devon.

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