That heat can easily be recycled
Fortum + a major hyperscaler, Finland — combined thermal power up to 350 MW, expected to supply roughly 40% of district heating for a metropolitan area serving 250,000 users once fully operational this heating season. Fortum put in about €225 million for heat pump plants and pipeline, expected to cut around 400,000 tonnes of CO₂ a year.
The setup: heat gets pulled from the Westin Building Exchange, a 34-story "carrier hotel" on 6th Ave that's a major landing point for transpacific subsea cables and hosts hundreds of telecom/internet companies — so it's not even Amazon's own servers, it's the neighboring building's waste heat. It runs through five heat-reclaiming chillers that bring the water up to about 130°F, then pipes that over to warm just over 4 million square feet across Amazon's four-block campus — the one with the three glass sphere structures. It's been running since around 2017 and the hot water is potent enough that the campus rarely needs its backup boilers at all. Amazon's estimate was 80 million kWh saved and 65 million pounds of CO₂ avoided over a 25-year service life.
tuban_muzuru
npub1hh…mkxu8
2026-07-10 04:51:51 UTC
in reply to nevent1q…xx2p
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