Why wouldn't they be?
Because they pay for electricity
Btw pretty impressive farm, can you share your electricity specs?
(load, price and so on)
Also.. that room should be pretty hot!
.048 kw/h, 20,000 Watts
2 tons of cooling for 2 month out of the year and the rest is cooled by (2) 12" intake fans and (2) 12" exhaust fans. Room stays under 100 degrees in 90 degree outdoor temps during primetime day hours, and under 90 degrees in the evening. Cards run under 80C.