Lessons from the first blackout of the green era

Over a century of running the power grid on fossil fuels, we learnt many lessons about why, how and when blackouts happen. We now need to learn new lessons about when they’re triggered by green energy.

On April 28, Spain and Portugal – and a sliver of France – 

suffered what could come to be known as the first major blackout

of the renewable-energy era. More than 50 million people lost power, and electricity didn’t return for nearly half a day.