Bowmanville Cement Plant — Canada
Cement Plant in Canada. Approximate location 43.88106, -78.70026.
Cement PlantCanadaCO₂ estimate (modelled)
Bowmanville Cement Plant is a cement plant in Canada. Cement plants heat limestone to 1,400°C in rotary kilns — one of the hottest industrial processes — and must control temperature precisely across the entire kiln length. It is operated by St Marys Cement Inc (Canada). It emits about 1,337,509 t CO₂e a year from Climate TRACE. That is 1.9% of the CO₂e from the 127 facilities in Canada that have an emissions figure in IndustryAtlas.
Facility data: Climate TRACE v6 (asset-level capacity & CO₂e, CC BY 4.0), id ct-32437349.
Data status
Known source data
Calculated from the dataset
Not available
Source data, measured cross-checks and calculated values are kept separate. No confidence percentage is invented.
Similar facilities by modelled emissions
- Selçuklu Cement Plant · 1,333,483 t CO₂e/yr · Türkiye
- Carandaí Cement Plant · 1,325,374 t CO₂e/yr · Brazil
- Sagar Cements Mattampally Cement Plant · 1,324,932 t CO₂e/yr · India
- Shree Cement Beawar Cement Plant · 1,352,299 t CO₂e/yr · India
- Ambuja Cements Ambujanagar Cement Plant · 1,353,353 t CO₂e/yr · India
Same Climate TRACE subsector; closest non-placeholder modelled CO₂e values. Russia and Belarus excluded.
Operating power plants within 50 km
- Darlington · Nuclear · 3,736 MW · 2 km
- HPG Site A · Solar · 2 MW · 14 km
- Whitby · Gas · 50 MW · 16 km
- Ganaraska · Wind · 18 MW · 18 km
- Illumination · Solar · 10 MW · 24 km
PowerAtlas operating assets, ordered by great-circle distance from published coordinates.
In context: how this facility compares
Subsector: cement. As cement plant, it requires high process heat (typically 800–1400°C) for its core industrial operations, supplied by boilers, furnaces or direct combustion. Cement plants heat limestone to 1,400°C in rotary kilns — one of the hottest industrial processes — and must control temperature precisely across the entire kiln length.
Capacity & CO₂-intensity comparison computed from Climate TRACE industrial facilities data; sector role based on engineering reference.
What 1,337,509 t CO₂e a year looks like
This facility's estimated annual CO₂e (Climate TRACE, modelled) in everyday equivalents from the US EPA Greenhouse Gas Equivalencies calculator:
Equivalencies: US EPA Greenhouse Gas Equivalencies. Emissions: Climate TRACE.
Carbon cost and Scope 1 emissions
At its reported 1.3M t CO₂e/yr (Scope 1), Bowmanville Cement Plant carries no domestic carbon price — and as a CBAM-covered product, its 1.3M t at the EU CBAM rate (€75/t) is €101M/yr of exposure on EU-bound exports. CBAM share rises from 2.5% (2026) to 100% by 2034. No domestic carbon price — but cement, steel, aluminium, fertilizer and hydrogen exported to the EU face CBAM at €75/t (rising to 100% by 2034).
Carbon price: EU CBAM €75/t · EU ETS €85/t, September 10, 2026, refreshed live via Carbon Hub. CO₂: Climate TRACE. Indicative carbon value, not the cash bill — free allocation applies; not compliance advice.
Operator
Operated by St Marys Cement Inc (Canada). All facilities by this operator →
Local climate
Bowmanville Cement Plant sits in a warm-summer humid continental climate zone (Köppen Dfb), at 43.9°N in the northern hemisphere.
Köppen zone: Köppen-Geiger world climate classification (Kottek et al. 2006, 0.5° grid).
Site climate & environmental severity
This site sits in a mild atmospheric environment (estimated ISO 9223 class C2 — Low), with humidity / wetness the leading environmental stress.
In this site’s local climate, a bare 150 °C surface sheds about 1415 W/m² to ambient — roughly 1.09× the loss at a 20 °C reference. 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).
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
Nearby industrial sites
- Gerdau Whitby Steel Mill · Steel Plant · 72,303 t CO₂
- Toronto Plant · Other Manufacturing · 16,788 t CO₂
- Scarborough Pulp and Paper Mill · Pulp & Paper Mill
- Hartland Abattoir Corp · Food & Beverage
- Etobicoke Casting Plant · Metals Plant · 9,171 t CO₂
- 810 Meadworks Llc · Food & Beverage
Location
Coordinates 43.88106, -78.70026. View on OpenStreetMap.
Frequently asked questions
What type of facility is Bowmanville Cement Plant?
Bowmanville Cement Plant is a cement plant in Canada. Cement plants heat limestone to 1,400°C in rotary kilns — one of the hottest industrial processes — and must control temperature precisely across the entire kiln length.
How much CO₂ does Bowmanville Cement Plant emit?
The page uses about 1,337,509 t CO₂e/year from the open dataset It ranks #17 among facilities in Canada by estimated CO₂.
Where is Bowmanville Cement Plant located?
Bowmanville Cement Plant is in Canada at approximately 43.88106, -78.70026.
Who operates Bowmanville Cement Plant?
The operator recorded in the open dataset is St Marys Cement Inc (Canada).