alt Hacker NewsIm not a gas booster -- but turbine technology is pretty impressive. Id go with nuclear before gas for sure - especially for these larger long lived sites.
I would say you end up with battery+solar and gas turbine/gensets providing power when solar+batteries cant fill the gap. Its a bit expensive to be adding so many different sources on site to shore up power supply.
FWIW obvious maintenance work required to keep turbines going.
Leadtime for nuclear power, unless you wanna buy a sketchy Russian submarine reactor that's been rusting in an arctic bay, is decades longer than even the supply constrained gas turbines.
I don't know why you think solar needs two forms of back up. Batteries are very reliable.