Comment by Someone

> So that's about 13Wh per daily user session

Plus ~1/2000th of a server, divided by the life time of a server on their premises in days. Let’s say a millionth of a server. At $1000 a server, that adds about $0.001 a day, if my math is correct. Actual numbers may be higher. What do they pay for their hardware, at the scale they buy it?

Plus installation and management, plus the cost of the building.