Written Question·Department for Energy Security and Net Zero·UIN 123549

District Heating: Outages

Tabled: 24 March 2026
Answered: 1 April 2026

Question

Rachel Blake

Labour (Co-op)Cities of London and Westminster

To ask the Secretary of State for Energy Security and Net Zero, whether his Department holds data on the frequency and duration of outages affecting heat network customers.

Answer

Martin McCluskey
Historically, heat network performance, including outage duration and frequency has been unregulated in Great Britain, and as such the Department does not hold this data. As the newly appointed market regulator for heat networks, Ofgem now have powers to ...

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