Probably didn't help that before the outage hit, Spain was running its grid with very little dispatchable spinning generation, and therefore not much inertia.

Probably didn't help that before the outage hit, Spain was running its grid with very little dispatchable spinning generation, and therefore not much inertia. Solar PV/thermal + wind: ~78% Nuclear: 11.5% Co-generation: 5% Gas-fired: ~3% (less than 1GW)