All of this extra water that's being boiled requires energy, and it's been calculated that in one day of extra energy use from boiling kettles is enough to light all of the streetlights in England for a night.
浪費されるエネルギーは 計算上では 一日に余分なお湯を ケトルで沸かすエネルギーは 英国中の街灯を 一晩中照らすのに等しいそうです でも本当なんです