https://apnews.com/968b9576c4dee644c2a61b2765f5d353

WARSAW, Poland (AP) — Energy experts were working Tuesday to restore full operations at Poland’s biggest power plant, the lignite coal-fueled Belchatow, after an energy network failure switched off 10 of the plant’s 11 units.

Energy imports from Germany and Sweden were needed to fill in for the suddenly missing power. Belchatow provides up to 20% of Poland’s energy.