According to the hype, hydrogen is going to be a central element of a future sustainable world. As countries and corporations race to slash their emissions, many new announcements in the hydrogen field are being made, and the picture is continuously updating. However, when examined closely the advantages of hydrogen are not so straightforward. An important issue is the sequence of energy inefficiencies and losses that are necessary before hydrogen can be burned as a fuel.
Interestingly, most of today’s hydrogen production is as a feedstock for industrial processes, often in oil refining, to make ammonia for fertilizer manufacture and to produce methanol. A small but growing proportion is being produced for use as an energy source.
Fossil fuel versus renewable
Today, hydrogen can be made from gas, coal, oil, renewables or nuclear. It is bound up with energy politics, and the pivotal issue of whether fossil fuels can have a future in a net-zero emissions world. This involves blue hydrogen, a name for combining fossil fuel-produced hydrogen with carbon capture and storage (CCS) to bury CO2 emissions underground. Hydrogen could offer the fossil fuel sector a lifeline into the future, where it can disguise the dirty origin of what sounds like a clean product.
This story is from the WellBeing 197 edition of WellBeing.
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