"The bigger issue was that the energy demands for the house, which included hot water heating for the pool and hot tub, outstripped the electrical supply we could get on a rural residential build: 400A" Am I the only one who almost spit out his coffee when reading this paragraph? I mean, building a remote home in the middle of a forest is a cool idea, sure. But then end up feeding the whole thing with 400A worth of e…
I had the same reaction (European too). If it's in Canada the supply voltage is 120V, so roughly half what we have in Europe, apples-to-apples it's comparable to 200A in Europe. Still, it's a very high amount of power (48kW) that would not even be subscriptable in France for a consumer (the max is 36kW).
Remember, they didn't want fossil fuels - if you are going all electric, especially for heating (in CANDADA!) you are going to pull some wattage.
That big outdoor pool - in CANADA - doesn't help either.