37165 BTU/h is roughly a quite convenient 10 BTU/s. 1 W is 1 J/s, and 1 BTU is about 1000 J. So the AC would need about 10 kW, or 180 kW for all of them. All i

37165 BTU/h is roughly a quite convenient 10 BTU/s. 1 W is 1 J/s, and 1 BTU is about 1000 J. So the AC would need about 10 kW, or 180 kW for all of them. All in all the computers in the example thus come out at north of 400 kW for total power use. Yikes! That's a power reduction by a factor of more than 13,000 in less than two decades! Put differently: If your electrical power comes from burning coal, the 1997 alternative to the computing power of a single M1 would emit about 8000 kg of CO₂ per day. The equivalent of driving 80,000 km with a very modern gasoline car. The mind boggles!