Microsoft’s data centre cluster serving Espoo, Kauniainen and Kirkkonummi represents the largest heat-recycling data centre project of its kind. (Image: Getty- Representational)
Explainers
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News1818-12-2025, 15:44

Finland's Bold Energy Move: Internet Heat Powers Homes, Unearths Hidden Resources

  • Finland is pioneering a unique energy strategy by capturing waste heat from data centers (internet infrastructure) to power homes via established district heating networks.
  • This approach leverages Finland's long, cold winters and existing infrastructure, turning the digital economy's waste into a valuable heating source for cities like Espoo, Kauniainen, Kirkkonummi, and Hamina.
  • Major tech companies like Microsoft (with Fortum) and Google (with Haminan Energia) are involved, with projects like Microsoft's aiming to heat 100,000 homes and reduce 400,000 tonnes of emissions.
  • Beyond waste heat, Finland is also exploring significant underground discoveries of naturally occurring helium and hydrogen, highlighting a broader national mindset for overlooked energy sources.
  • While data centers are electricity-intensive, this model demonstrates how AI-driven computing can contribute to local energy systems, reducing fossil fuel reliance and offering a blueprint for sustainable urban energy.

Why It Matters: Finland transforms internet waste heat into home energy, pioneering sustainable urban heating and resource discovery.

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