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This week in data:

On Monday, a blackout across most of Spain and Portugal plunged the countries into chaos.

While the initial trigger remains uncertain, the nationwide blackouts took place after around 15 gigawatts (GW) of electricity generating capacity – equivalent to 60% of Spain’s power demand at the time – dropped off the system within the space of five seconds. At the time, solar accounted for 59% of the country’s electricity supplies, wind nearly 12%, nuclear 11% and gas around 5%.

As the crisis was still unfolding, many media outlets were quick to blame renewables, net-zero or the energy transition for the blackout, despite very little available data or information.

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