@PotatoClose @PSQ17266 @Kit_Yates_Maths Again, consider cost vs benefit. Electricity ~20p/KWh. 500 KWh/y is less than the cost of even one sick day, and one sick day avoided is a very, very low estimate, and further ignores any human cost from illness.
@PotatoClose @PSQ17266 @Kit_Yates_Maths 再次考虑成本与收益。电 ~20p/KWh。 500 千瓦时/年甚至比一个病假的成本还要低，避免一个病假是一个非常、非常低的估计，并且进一步忽略了疾病带来的任何人力成本。