SWT Green Efficiency
We continually reduce resource usage and step-by-step achieve improved efficiency of processes.
By realizing the measures concerning energy efficiency including the furnaces, more than 100 million kWh have been saved already.
kWh saved
since the introduction of DIN EN ISO 50001
SWT Green Processes
Our principles:
- Maximum process efficiency by minimal use of energy and material
- Substitution of fossil energy sources by climate neutral sources
By modernising and technically optimising our burner technologies at our electric arc furnace, we achieved a reduction contribution of more than 1,200 tonnes of CO2 per year.
In 2024, we modernised our dedusting system on a large scale: new motors, transformers, fan wheels for the dedusting fans, the associated control and electrical technology as well as water-cooled frequency converters that adjust the speed of the fan motors to current requirements. The savings potential of this measure is around 11 gigawatt hours of energy per year.
Data from the implementation plan for final energy saving measures (in accordance with Section 9 of the Energy Efficiency Act EnEfG):
| priority | A |
| measure name | speed-controlled dedusting fan |
| investment volume | 4 million Euros |
| time frame | 01.01.2023 – 31.12.2025 |
| origin of the measure | investment plan 2023-2027 |
| responsible | technical projects |
| status | completed |
in the period
2014-2024
more than
CO2 saving
Optimization of the circular
economy
We reprocess our metallurgical by-products for subsequent utilization paths. We close global material cycles in the long run, thus making our contribution to reduce global consumption of natural resources. Currently, our electric arc furnace slag, is mainly used in road and industrial area construction and further areas of application are being explored. Separation iron obtained from slag, are crushed and fed into the steel production process. Mill scale is used as iron oxide carrier in the cement and automobile industries. From our filter dust, zinc is recovered by our partner companies. The worn-out brickwork of our stoves is recycled at the end of its useful life and made into new bricks.
CO2 sequestration-
through annual tree planting campaigns since 2020
Optimization green space management
5The Handelsblatt has calculated that a single tree (e.g. copper beech or sycamore maple) binds around 1.5-2.5 tons ofCO2 in its lifetime. We plant shrubs and trees on the company premises. Since 2020, 200 shrubs have been planted around the scrap yard. We also plant trees outside the company together with regional cooperation partners. In 2025, for example, we planted 2,050 seedlings. These will bind around 4,100 tons of CO2 over the lifetime of the trees.
Further information
SWT Green Steel
immediately available for the entire product range
