You can increase their peak power production to deal with the variability. For example this hydro plant, about the size of a nuclear reactor, maxes out at ~1 G

You can increase their peak power production to deal with the variability. For example this hydro plant, about the size of a nuclear reactor, maxes out at ~1 GW while the production is on average 250 MW. In other words, it facilitates renewables. https://en.wikipedia.org/wiki/Harspr%C3%A5nget_hydroelectric_power_station https://en.wikipedia.org/wiki/Harspr%C3%A5nget_hydroelectric...