Several data centres in Toronto (including the massive facilities at 151 Front Street West where most of the internet for the province passes through) make use of the deep lake cooling loop that takes water pumped in from Lake Ontario to cool equipment before moving on to other uses. Water is pumped in from a sufficient depth such that the temperature is fairly constant year round.
I think the system just has an isolated loop that heat exchanges with the incoming municipal water supply. Unsure if the whole system cools the loop glycol further or not, but ultimately there’s still a compressor-based aircon system sitting somewhere, probably at each building, that they’re depending on. They’re just not rejecting heat to the air (as much?).
Would love to know if a data centre could get paid for rejecting it’s heat to the system during what is heating time for other users.
> IP-Only, Interxion and Advania Data Centers are building data centers on the Kista site, which is connected to Stockholm's district heating system so tenants get paid for their waste heat, which is used to warm local homes and businesses
