3 ms·

So, this is based on the assumption that electricity coming into the home is 100% efficient and none of the systems inefficiencies in power generation or deliv

So, this is based on the assumption that electricity coming into the home is 100% efficient and none of the systems inefficiencies in power generation or delivery need to be accounted for, the way they are in fossil fuels? That doesn't seem particularly useful.

francisofascii 3y ago
Right, this measure is more for consumers and does not take into account generation or delivery. It is especially useful when comparing heat pumps to electric resistance heat, which is often the backup heat source. If the COP falls below one, you switch to resistance heat. But this article is saying heat pumps built today can operate well over 1 at very low temps.