Produce low-carbon steel with precise monitoring. Optimise with CarbonOS.

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Short answers on cost, emissions and carbon rules in a steel mill. To see them worked out with your own plant data, book a demo.
Carbonova connects blast furnace, steel shop, rolling mill and energy data to CarbonOS, a platform of AI agents that calculates emissions per tonne of iron and steel, flags drift in coal, gas and electricity use, and compares scrap, process-gas and route scenarios by their effect on cost and CO₂. Carbonova Build, in early access, adds process simulation and advanced process control.
On the integrated route, most emissions come from the blast furnace, where coke and coal reduce iron ore and release CO₂; sinter plants, coke ovens and reheating furnaces add the rest. That is why the route matters so much: in 2024 the world average was 2.34 tCO₂ per tonne of steel for the blast furnace and basic oxygen furnace route, against 0.69 tCO₂ for scrap-based electric arc furnaces (worldsteel, 2025).
Plants producing more than 2.5 tonnes of iron or steel an hour are in the UK Emissions Trading Scheme. From 1 January 2027 the UK CBAM puts a carbon price on imported iron and steel, alongside aluminium, cement, fertiliser and hydrogen, so imports carry a carbon cost too. UK-listed steel groups report against UK SRS on a comply-or-explain basis for accounting periods starting on or after 1 January 2027 (FCA, 2026).
Yes. UK steel entering the EU has carried a CBAM obligation for the EU importer since 1 January 2026, at a third-quarter 2026 price of €82.32 per tonne, and default values cost more than verified data. Linking the UK and EU emissions trading systems would bring mutual exemption from both CBAMs; an agreement was reported in October 2026, but neither government had confirmed it by mid-October. Carbonova keeps installation-level data ready for EU buyers.
The planning agent uses the mill’s real data to simulate and rank, by cost per tonne of CO₂ avoided, measures such as a higher scrap share, better use of blast furnace, coke oven and converter gases, heat recovery and fuel switching. In Germany, integrated steelworks cover most of their own electricity by burning process gases (UBA, 2019), and Carbonova Build adds pinch analysis of heat exchange.
CarbonOS calculates product-level footprints from production, energy and raw-material data, with lineage back to the source, versioned emission factors and a change history, in line with the ISO 14064-3 verification standard. The same dataset supplies the emissions data EU importers need for CBAM, ISSB-aligned disclosures and carbon footprint requests from carmakers and other customers.