Comment Re:This is mind boggling stupid.... (Score 3, Informative) 137
You need to do the math. I live in an all electric house up north. 12 KW goes to the various heating units. The stove is rated for 11 KW if everything in on like say Thanksgiving dinner. The water heater is 5 KW. I can't read the clothes dryer tag but it's on a 30 amp circuit just like the water heater.
Then add a dishwasher, microwave, and a vacuum cleaner (which is a surprisingly big power hog).
So the 200 amp service is pretty well loaded if all that is on at the same time, and that is what you have to design for. Sure a Smart home could juggle loads to some extent, shutting off the dryer and the water heater if the load goes up too high, but the prioritization is not simple.
And don't whine at me to get a heat pump. I have one and I like it, but it stops working at -5 F, then it's up to the resistors.
Just for reference my wintertime power use is three times summertime use. Last year I used the heat pump in AC mode for part of 21 days, typically 6 to 8 hours. It is in heating mode from mid October to the end of April.