Facility counts by sector, Climate TRACE v6 (asset-level capacity & CO₂e, CC BY 4.0).
Across the 91 Spain industrial facilities with an estimated CO₂ figure (Climate TRACE), total emissions are about 47.5 Mt CO₂e/yr. The single largest emitter, ArcelorMittal Asturias (Aviles) steel plant (iron-and-steel), accounts for about 8% of that. The biggest sectoral share comes from oil-and-gas-refining. Among facilities with a known operator, the top three — Repsol, ArcelorMittal España SA, Cepsa — account for roughly 40%. Most of these facilities sit in a temperate Köppen climate zone.
Estimated CO₂e (modelled): Climate TRACE v6 (asset-level capacity & CO₂e, CC BY 4.0); climate: Köppen-Geiger (WorldClim). CC BY 4.0.
| # | Facility | Type | t CO₂e/yr |
|---|---|---|---|
| 1 | ArcelorMittal Asturias (Aviles) steel plant | Steel Plant | 3,891,500 |
| 2 | Repsol Bilbao Refinery | Refinery | 2,566,756 |
| 3 | Repsol Cartagena Refinery | Refinery | 2,566,756 |
| 4 | CEPSA La Rabida Refinery | Refinery | 2,216,744 |
| 5 | CEPSA Gibraltar-San Roque Refinery | Refinery | 2,211,146 |
| 6 | Repsol Tarragona Refinery | Refinery | 2,170,075 |
| 7 | San Ciprian alumina refinery | Aluminium Smelter | 1,860,213 |
| 8 | ArcelorMittal Asturias (Gijón) steel plant | Steel Plant | 1,822,038 |
| 9 | Nanta, S.A.U. Las Palas | Food & Beverage | 1,761,933 |
| 10 | Repsol Puertollano Refinery | Refinery | 1,750,061 |
| 11 | Repsol A Coruna Refinery | Refinery | 1,400,049 |
| 12 | BP Castellon Refinery | Refinery | 1,283,378 |
| 13 | Uve, S.A. (Fab. Piensos) | Food & Beverage | 1,121,933 |
| 14 | El Alto Cement Plant | Cement Plant | 1,036,498 |
| 15 | Villaluenga de la Sagra Cement Plant | Cement Plant | 933,829 |
| 16 | Dow Chemical Co. , Tarragona | Petrochemical | 880,870 |
| 17 | Repsol SA , Tarragona | Petrochemical | 880,223 |
| 18 | Aboño Cement Plant | Cement Plant | 864,305 |
| 19 | Alcanar Cement Plant | Cement Plant | 753,349 |
| 20 | Sagunto Cement Plant | Cement Plant | 677,033 |
Inzonex IndustryAtlas (2026). Industrial CO2 emissions — Spain. Derived from Climate TRACE v6 and Köppen-Geiger/WorldClim (CC BY 4.0). https://inzonex.co.uk/industryatlas/spain/