A debate over the merits of green and blue hydrogen
Save time by listening to our audio articles as you multitaskof low-carbon hydrogen-production capacity by 2030—enough for around 2% of current energy demand. In April the government doubled that goal. Britain, it thinks, can build a “thriving hydrogen economy”, both domestically and by exporting new technology.
These regions not only have a big industrial base, including steelmaking, but already make use of lots of hydrogen: it is a component in chemical reactions for refining and the production of fertiliser and methanol. Almost all this hydrogen is currently the dirty “grey” sort, which is made from natural gas but does nothing about the carbon dioxide thereby emitted. Producers of cleaner forms of hydrogen in these areas will be close to potential customers and can use existing infrastructure.
Where things get more heated is over which form of low-carbon hydrogen to back, and how it should be used. The flagship projects at both HyNet and the East Coast Cluster are blue-hydrogen plants. That has sparked criticism from green-hydrogen champions. The blue sort can never be fully emissions-free, they say. It relies on natural gas, which is volatile in price and insecure in supply—about half of Britain’s gas is imported.
Belgique Dernières Nouvelles, Belgique Actualités
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