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Carnegie Science: Predicting the sustainability of a future hydrogen economy
Predicting the sustainability of a future hydrogen economyNew research shows water and land limits to electrolytic hydrogen production
Washington, DC— As renewable energy sources like wind and solar ramp up, they can be used to sustainably generate hydrogen fuel. But implementing such a strategy on a large scale requires land and water dedicated to this purpose.
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He and Tonelli—working with Carnegie visiting scholar Paolo Gabrielli (of ETH Zurich), Carnegie’s Ken Calderia, Alessandro Parente of ULB, and Francesco Contino of UCLouvain—found that due to land or water scarcity, less than half of the projected 2050 demand for hydrogen fuel could be both produced and used locally using wind or solar power.
“If you look at how much water would be needed globally to produce enough hydrogen to meet humanity’s needs in 2050, it’s only 0.6 percent of the world’s available water ,” Tonelli said. “But when you look at local production for local use, the picture can be different.”
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Rosa and Tonelli found that Southern Africa, Central-East Africa, West Africa, South America, Canada, and Australia have land and water availability that could make them potential leaders in exporting hydrogen. Conversely, Western Europe, Trinidad and Tobago, South Korea, and Japan would likely need to either import hydrogen fuel or downsize existing industrial output.
…
https://www.nature.com/articles/s41467-023-41107-x
Washington, DC— As renewable energy sources like wind and solar ramp up, they can be used to sustainably generate hydrogen fuel. But implementing such a strategy on a large scale requires land and water dedicated to this purpose.
…
He and Tonelli—working with Carnegie visiting scholar Paolo Gabrielli (of ETH Zurich), Carnegie’s Ken Calderia, Alessandro Parente of ULB, and Francesco Contino of UCLouvain—found that due to land or water scarcity, less than half of the projected 2050 demand for hydrogen fuel could be both produced and used locally using wind or solar power.
“If you look at how much water would be needed globally to produce enough hydrogen to meet humanity’s needs in 2050, it’s only 0.6 percent of the world’s available water ,” Tonelli said. “But when you look at local production for local use, the picture can be different.”
…
Rosa and Tonelli found that Southern Africa, Central-East Africa, West Africa, South America, Canada, and Australia have land and water availability that could make them potential leaders in exporting hydrogen. Conversely, Western Europe, Trinidad and Tobago, South Korea, and Japan would likely need to either import hydrogen fuel or downsize existing industrial output.
…
