“Green” hydrogen, which is produced from renewable energy sources, is cleaner than hydrogen produced from natural gas. But much more expensive. And just how clean is it?
in tax credits to boost investment in the development of renewable energy, including renewable hydrogen. Tax incentives in that law amount to guaranteed revenue for producers of renewable hydrogen, and the law allocates $8 billion to help build infrastructure such as pipelines and transmission lines, Friedmann said.At first glance, renewable hydrogen seems to be much better for the environment than hydrogen fuel produced using natural gas, a fossil fuel that emits carbon dioxide when it burns.
Green hydrogen is made with zero carbon dioxide emissions, said Robert Howarth, a Cornell University ecology and environmental biology professor.climate advocates say it isn’t that simple, partly because of the carbon emissions that come from plants that produce renewable hydrogen.that the rush to produce more hydrogen will increase carbon emissions because plants that produce renewable hydrogen will use electricity from gas- and coal-powered plants.
If the rules limiting greenhouse gas emissions that accompany federal tax credits aren’t stringent, renewable hydrogen projects could emit more carbon dioxide than standard hydrogen projects,"Weak guidance could result in subsidizing hydrogen projects that have more than twice the emissions of today’s status quo hydrogen and drive increased emissions of more than 100 million tons of carbon dioxide in this decade," the council said in its report.
It’s important to ensure that renewable hydrogen is"truly green," said Martin,"which means that its source electricity must be truly green."RELATED:
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