SUNTHERM APS

Their core work

Suntherm is a Danish SME that develops eco-innovative heating solutions aimed at zero-carbon household heating. Their flagship product, SmartHeat, is a solar-based heating system they brought from feasibility study through full commercialization with H2020 SME Instrument funding. Beyond their core product, they contribute solar thermal and building envelope expertise to larger EU consortia working on deep renovation, smart buildings, and carbon-neutral energy communities. Their role in these projects typically involves integrating their heating technology into broader building energy management and renovation frameworks.

What they specialise in

How they've shifted over time

Suntherm began its H2020 journey in 2016-2017 focused squarely on developing and commercializing their own zero-carbon heating product through the SME Instrument. From 2019 onward, they pivoted to joining larger consortia where they contribute their heating and solar expertise to broader challenges — deep building renovation, IoT-enabled smart buildings, digital twins, and integrated community energy systems. The shift from product development to system integration reflects a maturing company embedding its technology into wider energy transition applications.

Suntherm is moving from standalone heating products toward becoming a component supplier for integrated smart energy systems and carbon-neutral communities — expect them to seek projects combining solar thermal, IoT, and district-level energy management.

How they like to work

Suntherm led their own product development (coordinating both SmartHeat phases) but predominantly joins as a specialist participant in larger Innovation Action consortia. Their participant funding is notably small (EUR 2,500–21,000 per project), indicating they contribute a specific technology component rather than large work packages. With 71 unique partners across 19 countries from just 7 projects, they are well-connected and comfortable in large, diverse consortia.

Despite being a small SME, Suntherm has built a broad European network of 71 unique consortium partners across 19 countries, primarily through large Innovation Action projects in the building energy sector. Their network is strongest in the Northern and Western European energy renovation community.

What sets them apart

Suntherm brings a rare combination: they are both a product company (with their own commercialized heating solution) and an experienced EU project participant who understands how to integrate hardware into complex multi-partner demonstration projects. For consortium builders, they offer a concrete, tested heating technology that can be deployed in renovation and smart building demonstrations — not just research capabilities but actual hardware to install. Their SME Instrument track record also signals strong commercial orientation and business viability.

Highlights from their portfolio

• SmartHeat
  Their flagship product, funded through both SME Instrument phases (EUR 1.16M total), representing a full journey from feasibility to commercialization of zero-carbon household heating.
• ENSNARE
  Combines their solar collector expertise with digital twin and industrialized building envelope renovation — signals their move toward digitally-enhanced physical products.
• domOS
  Positions their heating technology within an IoT-based smart building operating system, showing integration with software-driven energy management platforms.