I bet it's a problem in the winter due to A/C and electric heating. When it's sunny in summer, solar production goes up but it also makes people use A/C more. T

I bet it's a problem in the winter due to A/C and electric heating. When it's sunny in summer, solar production goes up but it also makes people use A/C more. There is significant canceling out. In winter, solar production goes up, but people use less energy due to electric heaters not be as needed since it's warmer. Not a lot of the country uses electric heaters, but it's enough to add to the problem.