How Power Grids Work

UP NEXT: Germany's Power Prices Go Negative, But Who's Getting Paid?

Clouds sweep over a field with wind turbines on Jan. 3, 2018 near Bischofsroda, central Germany. Just a few days earlier on Christmas Eve and a portion of Christmas Day, power prices in Germany plunged below zero.

Power prices dropped below zero on Christmas 2017 in Germany. HowStuffWorks finds out if it's good that customers were paid to use electricity.

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