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Power Failures

Asked by Ben LakePlaid CymruDepartment for Energy Security and Net ZeroTabled Answered 28 May 2026UIN 2735

The question

To ask the Secretary of State for Energy Security and Net Zero, how many unplanned power outages occurred in each of the last five years.

Answered by Michael Shanks

The UK has a highly resilient energy network, and industry works to continuously minimise the risk and impacts of unplanned outages.

All DNOs are regulated by the independent regulator, Ofgem, and must report their performance against annual targets to Ofgem each year. The outcomes of these reports are published on Ofgem’s website: RIIO-2 Electricity Distribution: annual report 2024 to 2025 | Ofgem

Ofgem’s most recent RIIO-2 Electricity Distribution report found that most companies improved their customer disruption scores between 2024 and 2025.

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