Once you start getting past mars the effectiveness of photovoltaics starts to drop off. We have used them out to about jupiter for probes. This asteroid sits be

Once you start getting past mars the effectiveness of photovoltaics starts to drop off. We have used them out to about jupiter for probes. This asteroid sits between mars and jupiter. However to power a mining operations you would need a massive solar array. I mean massive. Same is going to happen to a large mirror array for a solar furnace to use for a thruster. It's going to be have to be huge. It would probably be better to use nuclear. The energy density is high so you don't have to launch as much material to get your mining infrastructure in place.