No the most important question is how much energy does it take?
It takes a lot, but not nearly enough.
The real problem with solar generation is seasonal variation. Think about the generation capacity we need during a 9-hour, overcast, winter day. Now, think about that same array under clear summer skies, when we are getting 15 hours of daylight.
It's barely meeting demamd in winter, but it is producing 4-10 times as much power as we actually need in summer. Grid storage is the usual suggestion for mitigating the limitations of solar generation, but no amount of grid storage is feasible for leveling seasonal variations.
Energy-intensive Fischer-Tropsch technology could soak up that excess summer power production, and shit off for the winter, making it profitable to deploy those large solar arrays. But we don't consume nearly enough butter to make this a viable approach at mitigating seasonal variation. To make it useful for promoting solar rollouts, we would need to be producing jet fuel, not butter.