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New Energy World magazine logo
New Energy World magazine logo
ISSN 2753-7757 (Online)

Hard road ahead for green steel production

27/9/2023

8 min read

Feature

Row of cylindrical electrolyser equipment in warehouse Photo: Ovako
Ovako’s 20 MW electrolyser in Hofors, Sweden, will produce green hydrogen for steelmaking

Photo: Ovako

Decarbonisation is one of the biggest challenges for the hard-to-abate iron and steel sector. New Energy World Features Editor Brian Davis looks at some of the front-runners in the race to produce green steel.

Steelmaking is a critical part of the global economy, but production is very emissions intensive, accounting for about 7% of annual global greenhouse gas emissions, according to the International Energy Agency. However, there are a variety of options for reducing emissions – from recycling scrap to decarbonising primary iron-ore-based steel.

 

The key decarbonisation route uses purportedly low-carbon ‘blue’ hydrogen (mostly from natural gas) or ideally carbon-less ‘green’ hydrogen (using renewable sources of electricity and water in electrolysers) to produce ‘direct reduced iron’ (DRI).

 

According to a report by the Energy Transitions Commission (ETC) on Breakthrough Steel Investment, ‘a pipeline of over 60mn t/y of commercial-scale green steel capacity is planned to become operational by 2030’. Unfortunately, this figure falls well short of the 190mn t/y of ‘near-zero’ production capacity emissions required to keep the steel industry aligned with the 1.5°C pathway to net zero under the Paris Agreement.

 

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