National Grid in the clear over August blackout


The electricity system operator (ESO) has emerged unscathed from the August blackout, with generators Ørsted and RWE instead paying penalties, alongside UK Power Networks.

The generators, whose failures caused a big frequency drop, will each pay £4.5m into a redress fund. UKPN will pay £1.5m for reportedly jumping the gun on reconnections. The other DNOs are all in the clear.

Ofgem said while it had “not identified any failures by the ESO to meet its requirements which contributed to the outage … this investigation has raised questions about how the ESO’s management of the system is carried out”.

Those concerns will be addressed in its review of the ESO’s structure and governance, said the regulator.

Details here.

Related stories:

National Grid: Two generators cause big frequency drop

Blackouts: What happened and what are the implications?

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