It doesn't need to be that amount, just a significant amount, to be worth mentioning. Though even if that much were true, you would have unusually high electricity bills at home¹.
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[1] much like we do in the UK, but that is because our national grid is a privatised mess effectively run by external concerns (EDF have their fingers in the pie, for one example) charging us much more than they can get away with in their home markets.