[epistasis]

There are lots of gas generators with super low capacity factors, but the capacity factor is not the key part of the generator, it's dispatachability, the ability to generate when asked to by the grid.

Neither nuclear nor coal are very dispatchable, as they can not respond to changes in demand in cost effective ways. Gas turbines can easily, as can batteries. While the sun is shining, solar can be dispatchable, because it's easy to shut off on demand or turn on demand. But for 60%-75% of the day, solar is not dispatchable.

In the modern grid, dispatchability is a far more useful attribute than capacity factor. Capacity factor is just an incidental.

[realusername]

In today's world ran by fossil fuels, there's not a need to turn off the non fossil fuel production, there's always more parts of the economy willing to get cheap electricity.

What matters then is the reliability and this is why the capacity factor and especially its variation are critical. See what happened in the EU when the russian gas turned off.

Batteries are a low scale solution at best at the moment anyways and aren't working at the scale of a grid.