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German Green Power Forces Neighbors to Bolster Blackout Defenses

Chart: German Wind Power Peaks
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Germany’s drive to harness wind and solar power is producing so much electricity that it’s spilling over into neighbors’ grids and increasing the threat of blackouts.

Poland and the Czech Republic are spending $180 million on equipment to protect their systems from German power surges, while Austria is curbing some trading to prevent regional networks from collapsing. On a windy day, the overflow east can exceed the output from four atomic reactors.