Actually that is the fallacy. It is impossible to replace power sources you can CONTROL (nuclear, carbon fuels) with ones you cannot (wind, solar, sometimes hydro).
All the capacity in the world is useless if the wind doesn't blow or the clouds show up. 1:1 replacement cannot work. That's the entire problem. They don't lack theoretical capacity. They lack the capacity to deal with wind and solar crapping the bed on certain days.
Actually that is the fallacy. It is impossible to replace power sources you can CONTROL (nuclear, carbon fuels) with ones you cannot (wind, solar, sometimes hydro).
All the capacity in the world is useless if the wind doesn't blow or the clouds show up. 1:1 replacement cannot work. That's the entire problem. They don't lack theoretical capacity. They lack the capacity to deal with wind and solar crapping the bed on certain days.
They also lack theoretical capacity, in fact. They are a (shockingly large) net importer of power.