A Breakthrough in Heat-to-Power

Transforming Waste Heat

AIRCOLES

An ambitious European initiative

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Initiative

AIRCOLES is a European initiative that transforms low-grade renewable heat into on-demand energy services.  It delivers clean power, cooling, and heating from sources such as solar thermal, geothermal, urban heat, and data-centre waste heat by combining the Isobaric Expansion Heat-Driven Compressor (IEHDC) and the Compressed-Air Linear Electric Generator (CALEG).

Innovation

AIRCOLES combines IEHDC and CALEG in a compact trigeneration system that uses only air as the working fluid. This enables efficient near-isothermal compression and single-stage expansion at low temperatures, where conventional technologies such as ORC, Stirling, and thermoelectric systems are less effective.  AIRCOLES offers a practical combined cooling, heating, and power solution ready for scale-up with integrated thermal and compressed-air storage, smart controls, and modular designs for buildings and data centers.

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TECHNOLOGY CONSORTIUM

AIRCOLES brings together three complementary European innovators with a shared goal: unlocking the potential of low-grade renewable heat. The consortium was formed through early technical exchanges, market analysis, and joint feasibility studies, which confirmed a strong synergy for developing and validating a high-efficiency, air-based trigeneration system for real-market applications. Encon tech B.V. contributes its Isobaric Expansion heat-driven compressor technology, YAFA Technologies Ltd its Compressed-Air Linear Electric Generator, and MG Sustainable Engineering AB its expertise in system integration, simulation, prototyping, sustainability assessment, and commercialization

YAFA Technologies Ltd

YAFA Technologies Ltd

Technology Partner
YAFA Technologies Ltd (UK) is an R&D company developing advanced compressed-air–based energy storage (“air-battery”) systems for low-cost, long-duration renewable integration. YAFA contributes its expertise in dynamic cycle analysis, conceptual and detailed design of the CALEG unit in AIRCOLES project, enabling efficient mechanical-thermal energy conversion and stable, dispatchable renewable power.
MG Sustainable Engineering AB

MG Sustainable Engineering AB

Project Coordinator
MG Sustainable Engineering AB is a vibrant and innovative consulting firm based in Uppsala. MG specializes in proposal development, project management, and strategic communication across various sectors, including renewable energy, technology, life sciences, and education. MG's commitment to sustainability and innovation drives us to integrate the United Nations Sustainable Development Goals (SDGs) into all our projects.

Encontech B.V

Encontech B.V

Technology Partner
Encontech B.V from the Netherlands develops innovative, ultra-efficient heat-to-mechanical energy conversion technologies. Their solutions focus on compact, scalable compressors and expanders that enable cleaner industrial processes, waste-heat recovery, and next-generation energy systems. With strong engineering expertise, Encontech supports advanced R&D projects and accelerates deployment of sustainable, high-performance energy technologies in the AIRCOLES project.