China-made solar parts under scrutiny after Spain-Portugal power cut

PARIS -- Recent power outages in Spain and Portugal have focused attention on Europe's solar energy infrastructure, which sources its parts almost entirely from China.

The cause of the widespread late-April blackout in the two countries is still under investigation. Officials in Spain, which trades energy with its smaller neighbor and relies on renewables to meet over half its needs, made conflicting statements this week about whether a cyberattack had been ruled out. What is certain, though, is that the outages have highlighted cybersecurity weaknesses.