Observed Signal · Mar 17, 2026 · Partnership · Source: Trending Topics · Impact: 2/5 · Sentiment: Positive
OnZero to supply recovered AI heat to Helsinki
Vienna-based OnZero Alpha Holdings' Finnish subsidiary OnZero Finland Oy has signed a contract with Helsinki energy provider Helen Oy to supply recovered waste heat from AI data centers to the city's district heating network. The 'AI Heat Factory' will provide up to 525,000 MWh annually, enough for 70,000 homes. OnZero uses liquid-cooled architecture to recover up to 99% of waste heat, with zero water consumption. The company operates two facilities in Finland with a PUE of 1.02. OnZero monetizes through AI compute, heat sales, and grid stabilization. The agreement supports Helen's goal to eliminate combustion-based energy by 2040.
Deal to supply waste heat from AI data centers to Helsinki district heating; highlights synergy between AI infrastructure and energy networks, but not directly affecting AdTech.
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Key Takeaways & Evidence Grounding
- OnZero Finland Oy signed a contract with Helsinki's energy company Helen Oy to supply recovered AI compute heat.
- The 'AI Heat Factory' will deliver up to 525,000 MWh per year, covering the heating needs of roughly 70,000 apartments.
- OnZero's liquid-cooled systems recover up to 99% of waste heat and use zero water for cooling.
- OnZero currently runs two facilities in Finland (Kemijärvi and Kerava) with a combined heat delivery of 30,700 MWh and a PUE of 1.02.
- OnZero generates revenue from AI/blockchain compute, heat sales, and grid stabilization services.
Connected Companies & Entities
1 Entity mapped“Der Versorger nutzt Abwärme aus Rechenzentren seit 2010 und hat unter anderem Verträge mit Equinix geschlossen....”
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