First off, What an amazing opportunity to visit there. I would have been just as awestruck as you, maybe more. All I can think of though is there must be some way to harness all that heat coming off that farm. I thought up the idea once to use the heat for saunas but the electricity came from people working out on equipment that was modified to generate power from movement which then powered the mining farm, either mainly or as supplement to grid power. Maybe even mount solar panels on top of the structure for additional assistance. Pretty crazy idea eh? The gym would even offer free membership in hopes to keep a full house. People could workout and turn their fat to crypto!