The chair of the ENTSO-E (European grid operators) board Damián Cortinas stated at the press conference: "The problem is not renewable energy, but voltage control, regardless of the type of generation."
sciencemediacentre.es/en/final-blackout-report-european-operators-confirms-event-was-caused-multiple-factors-recommends

March 20, 2026 - 17:57 UTC

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You have to understand that traditionally, grids were managed largely through frequency control. If the frequency went down that meant more demand than supply. So you quickly burned more fossil fuels. If the frequency went up you burned less. Simple.
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But the frequency was fine and well managed. All that talk about inertia, FCR and FRR is foolish beside the point nonsense.

The problem was voltage fluctuations.
Whole different ball game.
For example: voltage fluctuations are much more local.

And the fix for that is clear and easy.
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