Using hydrogen fuel risks locking in reliance on fossil fuels, researchers warn
(The Guardian, 6 May 2021) Electrification of cars and home boilers best choice to fight the climate crisis, say scientists.
Using hydrogen-based fuels for cars and home heating risks locking in a dependency on fossil fuels and failing to tackle the climate crisis, according to a new analysis.
Fuels produced from hydrogen can be used as straight replacements for oil and gas and can be low-carbon, if renewable electricity is used to produce these “e-fuels”. However, the research found that using the electricity directly to power cars and warm houses was far more efficient.
The analysis estimated that hydrogen-based fuels would be very expensive and scarce in the coming decade. Therefore, equipment such as “hydrogen-ready” boilers could end up reliant on fossil gas and continue to produce the carbon emissions driving global heating.
However, a few sectors such as aviation, shipping, steel and some chemicals are extremely hard to electrify. The researchers said hydrogen-based fuels would be needed for these by 2050, when the world needs to have reached net zero emissions. But they said enormous investment in technology and fast-rising carbon taxes would be needed to achieve this.
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