COMESSA SA

Their core work

COMESSA SA is a French engineering SME based in Strasbourg specializing in industrial thermal equipment and high-temperature process systems. Their H2020 participation reveals expertise in designing and testing equipment for solar-driven industrial processes — specifically reactors and heat transfer systems that operate at extreme temperatures using concentrated solar energy. In both projects, they contributed as an industrial partner bringing manufacturing and engineering know-how to research consortia focused on decarbonizing energy-intensive industrial processes. Their practical role is translating laboratory-scale solar thermal concepts into industrially viable hardware.

What they specialise in

How they've shifted over time

Both projects started in 2016, so the timeline is narrow — but the keyword shift reveals a clear deepening of focus rather than a pivot. Their entry point was broad industrial solar process heat (SOLPART), centred on replacing fossil fuel combustion in mineral calcination. By NEXT-CSP, the vocabulary had become far more technical: solar field architecture, particle receivers, innovative heat transfer fluids, and direct thermal storage. This suggests COMESSA moved from being a general industrial equipment contributor toward becoming a recognised specialist in the particle-based subsystems that define next-generation CSP plants.

COMESSA is tracking toward the emerging intersection of concentrated solar power and industrial decarbonisation — a space that will attract significant EU and private investment as hard-to-abate industries face carbon pricing pressure.

How they like to work

COMESSA has participated exclusively as a consortium member, never taking on a coordination role, which is typical for industrial SMEs that contribute hardware, prototyping, or engineering validation rather than project management. Both projects had reasonably large international consortia, suggesting they are comfortable operating as specialist contributors within complex multi-partner structures. Working with them likely means engaging a focused technical partner who delivers on a defined equipment or engineering brief rather than a broad co-investigator.

COMESSA has built connections with 16 unique partners across 7 countries through just two projects — a relatively dense network for an organisation of this size and project volume. Their European reach spans the core CSP research community, likely including French, Spanish, German, and southern European partners given the solar thermal domain.

What sets them apart

COMESSA occupies a rare position as an industrial SME with hands-on experience in both solar-driven chemical reactor systems (SOLPART) and next-generation CSP particle technology (NEXT-CSP) — few companies of this size can claim participation in both branches of high-temperature solar thermal research. For consortium builders, they fill a critical gap: an industrial partner who can take research prototypes toward pilot-scale hardware without requiring a large corporate structure. Their Strasbourg base also places them well within the French industrial cluster with strong ties to both academic research networks and European manufacturing supply chains.

Highlights from their portfolio

• SOLPART
  The largest funded project for COMESSA (€720,750 EC contribution) targeting direct industrial decarbonisation by substituting solar heat for fossil fuels in lime and cement production — a commercially significant application with a clear path to market.
• NEXT-CSP
  A longer-running project (2016-2021) that pushed COMESSA into the technically demanding domain of particle-based heat transfer fluids and direct thermal storage, marking their deepest engagement with CSP system architecture.