HoloDust said:
Well, this is what quick query gave me: - The Cathedral Bomb Shelter (Helsinki) One of the earliest and most famous examples is located directly beneath Helsinki's historic 19th-century Uspenski Cathedral. Deep in the granite underneath the church sits a former WWII bomb shelter that was converted into an underground data center. The energy company Helen captures the server heat, boosts it, and distributes it to heat roughly 500 nearby homes. - The Mäntsälä Cave Facility In the town of Mäntsälä, a large data center built into a former underground cave/quarry recovers tens of thousands of megawatt-hours of energy annually. The system captures enough excess thermal energy to supply more than two-thirds of the entire town's heating demand, drastically lowering local energy costs and eliminating the need to burn fossil fuels for winter warmth. - Fortum Microsoft built a massive data center region in the capital area where the waste heat is recycled into the Fortum utility network. It is designed to cover roughly 40% of the district heating needs for the major neighboring cities of Espoo and Kirkkonummi, cleanly warming around 250,000 users. - Hamina Google’s Hamina data center campus routes its computational thermal runoff into the local grid, providing up to 80% of Hamina's annual district heating demand
I find it really clever use of heat that is byproduct of data centers. Of course, as someone who actually lives there, you are certainly privy to much more info about ins and outs of all of it. |
Has putting some data centers underground reduced the noise pollution?
Last edited by CaptainExplosion - on 30 June 2026
