Steel Decarbonization Dynamics Service (SDDS)
Test your steel decarbonization knowledge:
Answer to question posted on March 13:
Which use of 1,000 GWh/year of green (0 CO2) electricity has the largest decarbonization benefit?
- Replace grid electricity (at 400 kg CO2/MWh) to power your EAF?
- Produce green hydrogen to inject into your BF, increasing furnace efficiency and lowering the PCI/coke rates?
- Produce green hydrogen to lower the natural gas rate in your DRI furnace?
- It doesn’t matter: hydrogen has the same decarbonization benefit however it is used?
The correct answer is: For EAF, to replace grid power
1,000 GWh/year is sufficient to produce 2 MT of EAF steel based on 500 KWh/ton of crude steel. The same quantify of grid electricity at 400 kg CO2/MWh generates 400,000 tons of CO2 /year which is avoided if green electricity is used instead.
1,000 GWh/year of green electricity can be used to produce 20,000 tons of green hydrogen at a rate of 50 KWh/kg H2. Injecting 20,000 tons of green hydrogen into a blast furnace reduces BF/BOF emissions by ~ 115,000 tons of CO2 /year with small variations due to furnace efficiency, hot metal ratio, etc. Using the 20,000 tons of green hydrogen to lower natural gas use in a shaft DRI furnace reduces EAF CO2 emissions by ~ 122,000 tons/year.
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Insights into the Steel Industry’s carbon conundrum
The Steel Decarbonization Dynamics Service (SDDS) is a comprehensive information package focused on the global steel industry’s decarbonization challenge that consists of analyses, forecasts and customizable models with an outlook to 2030, 2040 and beyond. It differs from the ever-increasing number of steel industry decarbonization reports in three key ways:
- Our Reports focus not on what could happen or what needs to happen, but rather on what is likely to happen…and
- Our proprietary model provides a holistic assessment of CO2 emissions, cost structures, raw materials balances, and energy requirements
- The Service offers the opportunity for the user to create customized scenarios by manipulating hundreds of inputs (country/region/plant-specific)
SDDS continues WSD’s decades-long history of providing rigorous, independent, and often controversial analyses and opinions.
WSD is available for customized presentation, consultation with your Board of Directors, Management Team, etc. Schedule a call today for more information