“We’re splitting water with a combination of electricity and this high temperature steam,” Gross says. “And that’s what leads to a breakthrough in efficiency, and that leads to an eventual breakthrough in price.” Because the technology uses steam, it can use less electricity, making it as much as 45% more efficient. Since it also can run throughout the night, “we can amortize the cost of the electrolyzer over 24 hours, instead of over 6 hours a day,” he says. “And that four-to-one better amortization leads to lower cost hydrogen.”
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