What caused the Spain and Portugal power outages? REN Portugal has said there was a "very large oscillation in the electrical voltages, first in the Spanish system, which then spread to the Portuguese system".
Apparently, this affected France, Greece, Belgium, Netherlands, & Andorra (never heard of it), too. Strange.
Apparently, this affected France, Greece, Belgium, Netherlands, & Andorra (never heard of it), too. Strange.