Written Question·Department for Energy Security and Net Zero·UIN 121432

Geothermal Power

Tabled: 17 March 2026

Answered: 25 March 2026

Question

Dr Kieran Mullan

To ask the Secretary of State for Energy Security and Net Zero, what assessment he has made of the potential impact of of deep geothermal heat on long term energy security.

Answer

Michael Shanks

In 2023, the Department co-funded a study with the Northeast Local Enterprise Partnership on the UK’s deep geothermal potential. Further research on the levelised costs of geothermal heat and power was published in summer 2025. Based on this evidence, the...

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