COMPANIA ESPANOLA DE LAMINACION SL

Their core work

CELSA Barcelona is the Spanish rolling mill and lamination division of CELSA Group, one of Europe's largest steel producers. Their core business is steel manufacturing — hot and cold rolling of steel products for construction, automotive, and industrial markets. In EU research projects, they function as an industrial end-user and real-scale demonstration host: their steel plant in Castellbisbal provides an operational heavy-industry environment where energy recovery technologies can be tested under genuine production conditions. They also bring industrial procurement and construction knowledge to building energy efficiency projects, bridging steel manufacturing with the built environment sector.

What they specialise in

How they've shifted over time

Both projects fall within a narrow 2021–2022 window, so there is no multi-year trajectory to trace in the traditional sense. That said, the keyword contrast between the two is meaningful: their first project (CO2OLHEAT) is firmly rooted in industrial process heat — sCO2 cycles, turbomachinery, cement, glass, aluminium, power generation — reflecting their identity as a heavy manufacturer seeking to recover energy from their own production processes. Their second project (PROBONO) pivots toward the built environment — BIM, green buildings, energy performance of buildings, building-integrated photovoltaics — suggesting an emerging interest in the downstream construction markets where their steel products end up. The trajectory hints at a broadening of scope from managing energy at the factory gate to influencing energy performance at the building level.

CELSA Barcelona appears to be moving from purely inward-facing energy recovery (reducing their own plant's energy costs) toward outward-facing building energy projects, likely tracking the construction sector's growing demand for sustainable steel and energy-integrated building solutions.

How they like to work

CELSA Barcelona has participated exclusively as a consortium partner — never as coordinator — across both projects, which is consistent with their role as a large industrial end-user rather than a research-leading institution. Both projects are Innovation Actions with large, multi-partner consortia, resulting in 87 unique partners across just two engagements — an unusually high number that signals participation in major European-scale demonstration programmes. They likely contribute by opening their industrial facilities and providing real-world validation environments, rather than driving technical or administrative leadership.

Despite only two projects, CELSA Barcelona has been exposed to 87 unique consortium partners across 19 countries — a broad European network typical of large Innovation Actions. Their geographic reach spans a significant portion of the EU research landscape, though their own home base is firmly Spanish.

What sets them apart

What sets CELSA Barcelona apart from university labs or research institutes is that they bring a genuine, operating steel production plant as a demonstration environment — a resource that is scarce and highly valued in Innovation Actions requiring proof-of-concept at industrial scale. For any consortium working on industrial heat recovery, energy flexibility, or low-carbon manufacturing, having a real steel mill as a partner is a significant asset for credibility and impact. Their dual presence in both heavy industry (sCO2) and construction-adjacent markets (green buildings) also makes them a useful bridge partner for projects that need to demonstrate cross-sector applicability.

Highlights from their portfolio

• CO2OLHEAT
  Targets one of the hardest decarbonisation challenges in European industry — recovering high-grade waste heat from steel, cement, and glass plants using supercritical CO2 turbomachinery — with CELSA's plant serving as a live operational testbed.
• PROBONO
  Largest funding award for CELSA (EUR 209,738) and the most diverse in scope, connecting steel manufacturing to BIM-driven green building design and building-integrated photovoltaics across connected sustainable neighbourhoods.