Natural gas vs coal fired plants. Many of these (if not most) can switch between coal and NG. These plants make that switch back and forth based on economics. The ability to switch is what keeps NG affordable.
Name a single power plant that can feed either natural gas or coal.
Natural gas generators cannot switch to coal. I believe coal and biomass can be switched.
Not true.
Fuel switching of a coal fired boiler is an engineering project, and means a derate for the unit. They were built to fire coal.
And that doesn't even consider if NG is available in sufficient quantity in the neighborhood.