I would be surprised if any large mining farm is using solar energy. Miners need to run 24 by 7 and solar is not suitable for continuous power.
It may be more useful to look for large mining farms using Geothermal or Hydro power. Geothermal is why Iceland has very cheap power and large mining farms. Hydro is why Sweden and parts of Washington state have cheap power.
hey i dont think they run 100% solar but at least partially. still thanx for heads up - interesting.
im just collectign questions to ask tchem!