Some key insights from the article:
Basically, what they did was to look at how much batteries would be needed in a given area to provide constant power supply at least 97% of the time, and the calculate the costs of that solar+battery setup compared to coal and nuclear.
Yeah but that would not account for the electricity need: in winter we need between 1000/1300 kWh mainly for heating / domestic hot water. Other months under 250 even if we use air conditioning. So if you cover the 7 nice months you still get absolutely wrecked by the dreaded 4 in the winter cost wise…
Yeah I was just explaining why I think the disconnect shows up between percentage and the number. Its why as you get to the end each percentage become significant as it means just a bit more insulation, batter size, panel efficiency, appliance efficiency might bridge the gap. You get in the nineties and its that one most brutal month that it can’t handle.
They just assumed a constant draw I think.