The Government will launch an investigation into a major power cut caused by the loss of two large generators – including one in Bedfordshire.
The National Grid said Friday’s blackout started when the gas-fired plant at Little Barford disconnected.
Two minutes later the Hornsea Offshore wind farm also failed.
The power cut affected nearly one million people and caused a blackout at Ipswich Hospital.
Andrea Leadsom, Secretary of State for Business, Energy and Industrial Strategy, said Friday’s power outage had caused “enormous disruption”.
She added: “National Grid must urgently review and report to Ofgem.
“I will also be commissioning the Government’s Energy Emergencies Executive Committee to consider the incident.”
The committee will look at whether National Grid, which manages the electricity
supply system, stuck to its processes and procedures and if these were fit-for-purpose.
It will also examine if there were technical performance issues in the country’s power system, the efficiency of communications around the incident and how power demand was restored.
According to Professor Tim Green, co-director of the Energy Futures Laboratory, Imperial College London, the first generator to disconnect on Friday was a gas-fired plant at Little Barford in Bedfordshire at 4.58pm.
Two minutes later the Hornsea Offshore wind farm also disconnected.
National Grid said it would seek to “understand the lessons learned” from the incident, while energy regulator Ofgem called for an “urgent detailed report” on what went wrong.