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North Hyde Substation Outage Review: National Energy System Operator’s Publication of Final Report
02 July 2025
Type
Written Ministerial Statement
Department
Department for Energy Security and Net Zero
At a Glance
Issue Summary
The statement addresses the publication of the final North Hyde Substation Review report by the National Energy System Operator (NESO) following an incident that disrupted power supply to over 70,000 customers including Heathrow Airport.
Action Requested
My Department will collaborate with NESO and Ofgem to deliver and implement recommendations aimed at improving energy resilience across the sector. A response to the report’s findings and recommendations will be published by my Department in due course.
Key Facts
- The incident occurred following a large fire at the North Hyde Substation.
- Over 70,000 customers were affected, including Heathrow Airport.
- NESO's interim report was published in May 2025 and the final report has been completed.
- Recommendations address resilience of energy infrastructure, response and restoration, and enhancing resilience of critical infrastructure to energy disruption.
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Assessment & feedback
Summary accuracy