This is true for power but it's not true for energy in total. A lot of energy is used at night by burning fossil fuels for heat directly in the home.

This is something you have to factor in when reading boldly optimistic claims about how somehow solar and wind can work everywhere without even storage.

Maybe if we never stop pumping natural gas into our homes to burn it, but that's not exactly in line with the goals.

In reality, for anything north enough to get snow on the regular you can't use today's electricity consumption numbers to judge future needs. When everyone switches to heat pumps base load at night is going to skyrocket.