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Written Question
Data Centres: Waste Heat Recovery
Tuesday 25th March 2025

Asked by: Baroness Freeman of Steventon (Crossbench - Life peer)

Question to the Department for Science, Innovation & Technology:

To ask His Majesty's Government what plans they have to use heat recovery systems in artificial intelligence growth zones, such as Culham, to combine the cooling of data infrastructure with the heating of local homes and amenities.

Answered by Lord Vallance of Balham - Minister of State (Department for Science, Innovation and Technology)

Data centres produce significant heat, most of which is currently wasted into the environment. The technology exists to capture this heat and reuse it in district heating networks, or for heat intensive industries. We welcome the inclusion of heat recovery systems within applications for AI Growth Zones alongside other sustainable solutions.

We are engaging with developers and operators to determine whether further interventions are necessary and appropriate to encourage adoption of heat recovery. The Greater London Authority is currently developing a pilot to test heating up to 10,000 homes and at least one hospital from London-based data centres.