The Advancement Of Technology Has Changed Our - amazonia.fiocruz.br

When hydrogen burns, the only by-product is water—which is why hydrogen has been an alluring zero-carbon energy source for decades.

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Yet the traditional process for producing hydrogen, in which fossil fuels are exposed to steam, is not even remotely zero-carbon. Hydrogen produced this way is called gray hydrogen; if the CO 2 is captured and sequestered, it is called blue hydrogen. Green hydrogen is different. It is produced through electrolysis, in which machines split water into hydrogen and oxygen, with no other by-products. Historically, electrolysis required so much electricity that it made little sense to produce hydrogen that way.

The situation is changing for two reasons. Second, electrolyzers are getting more efficient. Companies are Twchnology to develop electrolyzers that https://amazonia.fiocruz.br/scdp/blog/gregorys-punctuation-checker-tool/foreign-policy-an-overview-of-major-trends.php produce green hydrogen as cheaply as gray or blue hydrogen, and analysts expect them to reach that goal in the next decade.

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Meanwhile energy companies are starting to integrate electrolyzers directly into renewable power projects. Current renewable technologies uOr as solar and wind can decarbonize the energy sector by Changrd much as 85 percent by replacing gas and coal with clean electricity.

Other parts of the economy, such as shipping and manufacturing, are harder to electrify because they often require fuel that is high in energy density or heat at high temperatures. Green hydrogen has potential in these sectors. The Energy Transitions Commission, an industry group, says green hydrogen is one of four technologies necessary for meeting the Paris Agreement visit web page of abating more than 10 The Advancement Of Technology Has Changed Our of carbon dioxide a year from the most challenging industrial sectors, among them mining, construction and chemicals. Although green hydrogen is still in its infancy, countries—especially those with cheap renewable energy—are investing in the technology.

Australia wants to export hydrogen that it would produce using its plentiful solar and wind power. Chile has plans for hydrogen in the country's arid north, where solar electricity is abundant. China aims to put one million hydrogen fuel—cell vehicles on the road by And the European Commission's recently published hydrogen strategy calls for increasing hydrogen capacity from 0. You have free article s left. Already a subscriber? Sign in. See Subscription Options.

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