References
Carbon-free energy with modular and turkey solutions, AmbiHeat and AmbiSteam.
Since 2013, Calefa has delivered about 200 energy systems that utilize waste heat or ambient energy. By December 2025, these systems have saved our customers:
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Heat Pump Systems Improve Power Plant Efficiency
Savon Voima has taken significant steps towards carbon‑neutral energy production by implementing heat pump solutions developed by Calefa at its power plants in Iisalmi…
Vatajankoski uses the AmbiHeat® heat pump plant to produce district heating from data center waste heat for up to 400 properties
Vatajankoski is a New Energy Company focused on renewable and combustion-free energy production. Starting in summer 2024, the company has met the entire summer district heating demand…
Utilizing Data Center Waste Heat with World-Class Efficiency
Finnish Limited Company MinersLoop refines the waste heat generated from cooling the data center into thermal energy using an AmbiHeat heat pump plant by…
Achieving Carbon-Neutral Aluminum Processing through Energy Collaboration with Calefa
Mäkelä Alu, the family-owned company in Ostrobothnia, Finland, set an ambitious goal to be carbon-neutral by 2025. With Calefa heat pumps, the goal is…
Turning Wastewater Heat into 90°C District Heat
The AmbiHeat heat pump plant, utilizing world-leading heat pump technology, converts the waste heat from municipal wastewater in Lahti, Finland into up to 90°C…
Finnish Pharma Leader Reduces 2,200 Tons of CO₂ Emissions with Award-Winning Heat-Pump Facility Model
Orion has launched its second state-of-the-art heat pump facility, designed and built by Calefa, at its Espoo, Finland site. This innovative facility, inspired by…
Boosting Process Cooling and Utilizing Waste Heat
Kiilto started to utilize waste heat for the heating of their more than three-hectare factory facilities and hot water in Lempäälä, Finland. Kiilto produces…
Emission-free Heating and Cooling for a Pharmaceutical Factory
The buildings at the four-hectare factory site of Orion in Turku are heated with an emission-free AmbiHeat® heat pump plant, which utilizes production waste…
Heat Pump Plant for Producing District Heating
A heat recovery plant utilizes waste heat from the Nebius data center and recycles the heat to the district heating network. The heat is…
