Data tower waste heat could warm 100,000 homes: 134 MW at 85°C, ~1 TWh/year
IgorCarron · x · 2026-10-04
Igor Carron walks through a waste-heat reuse plan for a data tower: it could supply 134 MW of 85°C heat to a district heating network — about 1 TWh per year, enough for 100,000 homes (roughly 5% of Paris households) — while freeing about five floors of space.
The catch: this assumes a hot-water network that can handle 130 MW, but today's network is small and mostly steam, so a realistic first step is a local 50 MW loop. The quoted post adds that the tower's multiple owners are fighting each other, argues selling heat could beat offices, and asks whether asbestos would be tolerated in such a setup.
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