Table 6.
Carbon footprint of hot-rolled coil as a function of the electricity mix for the H2-Case
| Electricity mix Input | Carbon footprint of electricity mix [kg CO2eq/kWh] | Carbon footprint of hot-rolled coil [kg CO2eq/kg HRC] |
|---|---|---|
| German renewable mixa | 0.056 | 0.76 |
| German grid mixb | 0.54 | 3.0 |
| European grid mixc | 0.39 | 2.3 |
The electricity mix is used for the water electrolysis, DR plant, melting unit, BOF, casting, and electrified hot-rolling.
aGerman renewable electricity mix, year 2018 according to the Environment Agency [34]; GaBi database, 2021.1: “DE: Electricity mix (energy carriers, generic)”.
bGaBi database, 2021.1: “DE: Electricity grid mix”
cGaBi database, 2021.1: “EU-28: Electricity grid mix”