In tightly coupled, highly complex systems such as the European energy grid, the next catastrophe is not caused. It is ...

Portuguese grid operator REN will allow utilities to resume imports of electricity from Spain, but the transmission capacity ...

A widespread power outage hit Spain and Portugal, affecting millions of people who live across Europe's Iberian Peninsula.

Electricity is pulsing through Spain and Portugal again after a massive outage knocked out power in both countries on Monday.

The authorities are still trying to determine the cause of a widespread blackout that left tens of millions of people without ...

Spain and Portugal switched their power back on after the worst blackout in their history, though authorities offered little ...

After a massive power outage Monday, almost all power had been restored Tuesday, with transportation slowly returning to ...

Electricity has returned to most of Spain and Portugal but with continued disruptions on the second day after an unknown ...

Whatever the root cause, one thing’s crystal clear: major blackouts don’t just switch off the lights; they send shockwaves ...

See photos of the massive power outage that affected millions of people in Spain and Portugal due to an "induced atmospheric ...

Even as electricity was restored across Spain and Portugal after a daylong blackout, residents tried to make sense of 18 ...

Electricity has returned to Spain and Portugal, but the cause of Monday's widespread blackout remains a mystery ...