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ArcelorMittal Méditerranée Fos sur Mer steel plant

Steel Plant in France. Approximate location 43.43754, 4.89013.

Steel PlantFranceCO₂ reported

ArcelorMittal Méditerranée Fos sur Mer steel plant is a steel plant in France with a reported capacity of 5,100,000 t of steel. Steel plants burn coal in blast furnaces or use electric arcs to melt scrap; in both cases the molten metal must be kept above 1,500°C and transferred through extensive hot piping and vessels. It is operated by ArcelorMittal Méditerranée SAS. By capacity it ranks #2 among 10 steel plants in France. It emits about 4,780,174 t CO₂e a year from Climate TRACE, roughly comparable to the annual emissions of 1.1 million passenger cars.

5,100,000t of steel
4,780,174t CO₂e / yr (Climate TRACE)
#2CO₂ rank in France
0.94t CO₂ per capacity unit

Facility data: Climate TRACE v6 (asset-level capacity & CO₂e, CC BY 4.0), id ct-1566817.

Data status

Known source data

FacilityArcelorMittal Méditerranée Fos sur Mer steel plant Climate TRACE
CountryFrance Climate TRACE
Coordinates43.43754, 4.89013 Climate TRACE
Sector / subsectoriron-and-steel Climate TRACE
Reported capacity5,100,000 t of steel Climate TRACE
Owner / operatorArcelorMittal Méditerranée SAS Climate TRACE
GEM steel parentArcelorMittal SA [100.0%] Global Energy Monitor
Steel process routeintegrated BF Global Energy Monitor
Steel asset statusoperating Global Energy Monitor
Steel equipmentBF, BOF Global Energy Monitor
Steel capacity2,550 ktpa Global Energy Monitor
Modelled CO₂e4,780,174 t/yr Climate TRACE

Calculated from the dataset

France rank#2 of 117 · top 1.7% calculated
Global iron-and-steel rank#160 of 868 · top 18.4% calculated
Climate contextderived from coordinates calculated

Not available

Fuel typeNot available not in dataset
Thermal capacity (MW)Not available not in dataset

Source data, measured cross-checks and calculated values are kept separate. No confidence percentage is invented.

Similar facilities by modelled emissions

Same Climate TRACE subsector; closest non-placeholder modelled CO₂e values. Russia and Belarus excluded.

Operating power plants within 50 km

PowerAtlas operating assets, ordered by great-circle distance from published coordinates.

In context: how this facility compares

At 5,100,000 t of steel, ArcelorMittal Méditerranée Fos sur Mer steel plant is well above the median steel plant in France (825,000 t of steel). Subsector: iron-and-steel. As steel plant, it requires high process heat (typically 800–1500°C) for its core industrial operations — heat that must be supplied by boilers, furnaces or direct combustion, and losses through uninsulated vessels and piping represent wasted fuel. Removable modular insulation can cut those losses by 80–96%, surface-cooling equipment to ≤45°C, with payback often under 2 years. Steel plants burn coal in blast furnaces or use electric arcs to melt scrap; in both cases the molten metal must be kept above 1,500°C and transferred through extensive hot piping and vessels.

Capacity & CO₂-intensity comparison computed from Climate TRACE industrial facilities data; sector role based on engineering reference.

What 4,780,174 t CO₂e a year looks like

This facility's reported annual CO₂e in everyday equivalents from the US EPA Greenhouse Gas Equivalencies calculator:

1.1 millioncars driven for a year
623khomes' annual energy use
80 milliontree seedlings grown 10 years

Equivalencies: US EPA Greenhouse Gas Equivalencies. Emissions: Climate TRACE.

Carbon cost, Scope 1 & decarbonization potential

At its reported 4.8M t CO₂e/yr (Scope 1), ArcelorMittal Méditerranée Fos sur Mer steel plant carries €380M/yr of carbon at the full EU ETS price (€79/t CO₂). Free allocation phases out to 2034 (Reg. (EU) 2023/956), so today's bill is lower and rising toward this full-price figure. The fastest decarbonization lever is energy efficiency: eliminating heat loss on hot equipment (removable insulation, steam & waste-heat recovery) typically cuts 2–5% of fuel-related CO₂ — here ≈96k t–239k t/yr, worth €7.6M€19.0M, with payback up to 2 years.

4.8M t CO₂e / yrScope 1 emissions
€380M/yrcarbon value · full EU ETS price
96k t–239k t/yr ≈ €7.6M€19.0MDecarbonization potential

Carbon price: EU ETS €79/t · EU ETS €79/t, July 2, 2026, refreshed live via Carbon Hub. CO₂: Climate TRACE. Efficiency range: US DOE / ASTM C680 (method). Indicative carbon value, not the cash bill — free allocation applies; not compliance advice. Estimate the saving for this site →

Capacity vs largest steel plants in France

ArcelorMittal Dunkerque steel plant: 6,750,000 t of steel6.8MArcelorMit…ArcelorMittal Méditerranée Fos sur Mer steel plant: 5,100,000 t of steel5.1MArcelorMit…Marcegaglia Fos Sur Mer steel plant: 900,000 t of steel900kMarcegagli…Riva Sam Neuves-Maisons steel plant: 850,000 t of steel850kRiva Sam N…Ascometal Hagondange steel plant: 825,000 t of steel825kAscometal …LME Trith-Saint-Léger steel plant: 820,000 t of steel820kLME Trith-…Saarstahl Ascoval Saint-Saulve steel plant: 730,000 t of steel730kSaarstahl …Riva Sam Montereau steel plant: 720,000 t of steel720kRiva Sam M…

Reported capacity (t of steel), Climate TRACE v6 (asset-level capacity & CO₂e, CC BY 4.0).

Operator

Operated by ArcelorMittal Méditerranée SAS.

Local climate

ArcelorMittal Méditerranée Fos sur Mer steel plant sits in a hot-summer Mediterranean climate zone (Köppen Csa), at 43.4°N in the northern hemisphere.

~17°Ctypical annual mean
~27°Ctypical warm-season
Hot-summer mediterranean: four distinct seasons — cold winters and warm summers

Köppen zone: Köppen-Geiger world climate classification (Kottek et al. 2006, 0.5° grid).

Site climate & environmental severity

The local climate sets how fast unprotected steel, protective coatings and the insulation on hot process equipment degrade at this site. It sits in a corrosive environment (estimated ISO 9223 class C4 — High), with marine corrosion the leading environmental stress.

C4ISO 9223 corrosivity (indicative)
39/100environmental-severity index
16.1°Cseasonal temperature swing
25 kmdistance to coast
HighCUI risk tier

In this site’s local climate, a bare 150 °C surface sheds about 1350 W/m² to ambient — roughly 1.04× the loss at a 20 °C reference; removable insulation recovers about 1282 W/m² of that. Reference-surface calculation at a 150 °C surface from WorldClim climate normals (ASTM C680 / ISO 12241) — an indicative per-climate comparison, not a measurement of this site’s specific equipment. Open method dataset: DOI 10.5281/zenodo.20787408 (CC BY 4.0).

Higher environmental severity is exactly where protective removable insulation pays back most: a sheltered micro-climate slows corrosion, UV and thermal-cycling damage and extends outdoor hardware service life. This is an indicative site-climate context — not a condition assessment of any specific plant or operator.

Indicative estimate via the ISO 9223:2012 informative method (atmospheric corrosivity from temperature, time-of-wetness and airborne salinity), using WorldClim climate normals, the Köppen-Geiger class and coast distance. Indicative, not a measured corrosion rate.

How it compares & nearby sites

The #2 largest of 10 steel plants in France by reported capacity.

Nearby industrial sites

Location

Coordinates 43.43754, 4.89013. View on OpenStreetMap.

Heat loss & insulation profile

For a steel plant, the main modular-insulation targets are reheat & annealing furnaces, ladles, hot-blast stoves, steam & gas ducting. Typical hot-surface ranges used for screening: 200–1,200 °C °C.

Indicative recoverable energy

A first-pass insulation screen suggests about 6,700 MWh/year of recoverable heat-loss reduction and about 2,300 t CO₂e/year of avoided emissions. Screening estimate scaled from installed process-heat projects and surface-temperature reduction data.

See Inzonex Modular Insulation → Run the calculator →

Screening calculation from facility class, capacity and open emissions/energy context. Engineering survey required before procurement.

Safety & the no-regret first step

Start with a thermal survey of valves, flanges, doors and bends. Removable modular insulation keeps maintenance access open while lowering exposed-surface temperature and wasted heat.

France: funding & obligation

Funding. Energy-savings certificate premiums for efficiency works; 6th period from 1 Jan 2026 (+35% obligation, 1050 TWhc/yr). official source · verified 2026

Obligation. Now CONSUMPTION-based: if avg annual final energy >2.75 GWh over 3 yrs, mandatory regulatory energy audit; first audit for newly-covered sites by 11 Oct 2026. (applies as a rule above the stated threshold — we do not hold this site's metered energy use). official source · verified 2026

Programme terms verified 2026-06-18; confirm the current open phase before applying. Eligibility depends on a site's energy use / headcount, which we do not hold — not a per-facility eligibility determination.

Frequently asked questions

What type of facility is ArcelorMittal Méditerranée Fos sur Mer steel plant?

ArcelorMittal Méditerranée Fos sur Mer steel plant is a steel plant in France. Steel plants burn coal in blast furnaces or use electric arcs to melt scrap; in both cases the molten metal must be kept above 1,500°C and transferred through extensive hot piping and vessels.

What capacity is reported for ArcelorMittal Méditerranée Fos sur Mer steel plant?

The open dataset reports 5,100,000 t of steel of capacity for ArcelorMittal Méditerranée Fos sur Mer steel plant.

How much CO₂ does ArcelorMittal Méditerranée Fos sur Mer steel plant emit?

The page uses about 4,780,174 t CO₂e/year from the open dataset It ranks #2 among facilities in France by reported CO₂.

Where is ArcelorMittal Méditerranée Fos sur Mer steel plant located?

ArcelorMittal Méditerranée Fos sur Mer steel plant is in France at approximately 43.43754, 4.89013.

Who operates ArcelorMittal Méditerranée Fos sur Mer steel plant?

The operator recorded in the open dataset is ArcelorMittal Méditerranée SAS.

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