1. Greening the steel sector
Green hydrogen offers an avenue for fossil-free steelmaking. At present, the available technology for hydrogen-based production of green steel is not commercially viable in the country. Hence, the Government is supporting pilot projects for the use of Green Hydrogen in the steel sector.
Ministry of Steel has awarded two pilot projects to produce DRI using 100% Hydrogen in a vertical shaft and one pilot project to use hydrogen in an existing Blast Furnace to reduce coal/coke consumption under the National Green Hydrogen Mission launched by the Ministry of New and Renewable Energy (MNRE). Various initiatives are also being undertaken by the Private Sector. Renewable energy sources like solar and wind are key to producing green hydrogen, making the shift to sustainable practices more feasible for the steel industry. The adoption of renewable energy in green hydrogen production is expected to accelerate the transition to a low-carbon economy.
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2. Taxonomy of Green Steel
“Green Steel” has been defined in terms of percentage greenness of the steel, which is produced from a steel plant with CO2 equivalent emission intensity less than 2.2 tonnes of CO2e per tonne of finished steel (tfs). The greenness of the steel shall be expressed as a percentage, based on how much the steel plant’s emission intensity is lower compared to the 2.2 t-CO2e/tfs threshold. Based on the greenness, the steel shall be rated as follows: Five-star green-rated steel: Steel with emission intensity lower than 1.6 t-CO2e/tfs shall be defined as five-star green-rated steel. Four-star green-rated steel: Steel with emission intensity between 1.6 and 2.0 t-CO2e/tfs shall be defined as four-star green-rated steel. Three-star green-rated steel: Steel with emission intensity between 2.0 and 2.2 t-CO2e/tfs shall be defined as three-star green-rated steel. Steel with an emission intensity higher than 2.2 t-CO2e/tfs shall not be eligible for green rating. The threshold limit for defining the star rating of Green Steel shall be reviewed every three years.
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3. Green Hydrogen in Iron and Steelmaking
Green hydrogen offers an avenue for fossil-free steelmaking. At present, the available technology for hydrogen-based production of green steel is not commercially viable in the country. Hence, the Government is supporting pilot projects for the use of Green Hydrogen in the steel sector.
Ministry of Steel has awarded two pilot projects to produce DRI using 100% Hydrogen in a vertical shaft and one pilot project to use hydrogen in an existing Blast Furnace to reduce coal/coke consumption under the National Green Hydrogen Mission launched by the Ministry of New and Renewable Energy (MNRE). Various initiatives are also being undertaken by the Private Sector. Renewable energy sources like solar and wind are key to producing green hydrogen, making the shift to sustainable practices more feasible for the steel industry. The adoption of renewable energy in green hydrogen production is expected to accelerate the transition to a low-carbon economy.