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Desalinated ocean water for green hydrogen production – pv magazine International


A California hydrogen developer and a Netherlands-based desalination firm have fashioned a brand new partnership.

From pv journal USA

Whereas electrochemical batteries can serve most of our wants from cell gadgets to autos and grid-scale storage, functions similar to heavy-duty vehicles and industrial processes require giant quantities of power to be delivered, which making hydrogen a pretty possibility.

Greater than 80% of the price of hydrogen goes to the electrical energy wanted to separate water atoms in a course of referred to as electrolysis. When paired with low-cost, free electrical energy sources similar to photo voltaic or wind, hydrogen manufacturing is taken into account “inexperienced hydrogen.”

Ohmium, a California-based firm that develops inexperienced hydrogen electrolyzers, has discovered a associate in Aquastill, a supplier of desalinated water techniques. The 2 will work collectively to supply inexperienced hydrogen gas from desalinated ocean water.

Aquastill’s desalination system makes use of waste warmth as enter, and makes use of the residual warmth from Ohmium’s electrolysis course of. It presents the co-benefits of cooling the Ohmium system whereas enabling desalination.

The 2 firms are presently growing how you can optimize the combination of the techniques, that are extremely modular and will be scaled from the megawatt to the gigawatt scale. Offshore wind power has been recognized as a possible supply of electrical energy for modular techniques, and photo voltaic is commonly a superb match resulting from its excessive modularity and talent to be positioned in our bodies of water.

“Utilizing Aquastill’s membrane expertise to effectively produce inexperienced hydrogen from seawater has the potential to be a sport changer for firms working in coastal or rural areas that need inexpensive and sustainable decarbonize,” stated Arne Ballantine, chief govt officer of Ohmium Worldwide.

Ohmium’s second technology proton alternate membrane electrolyzer produces a charge of 9.0 kg per hour with a four-second ramp-up time. It’s in line with three part with 480 VAC/60Hz, 415 VAC/50Hz, or 400VAC/50Hz with optionally available DC integration.

The US Division of Power (DoE) has centered on the low value of inexperienced hydrogen. Launched in 2021, the Hydrogen Shot program has a “1-1-1” purpose, focusing on prices of $1 per 1 kilogram in 1 decade. By 2022 renewable energy-fueled hydrogen prices roughly $5 per kilogram, so this goal represents a value discount of 80% in a decade.

DoE investments in inexperienced hydrogen are on the rise. In 2021, it helps $285 million in funding, and in 2022, the President’s Fiscal Yr 2022 Finances Query contains an software for $400 million in funding for inexperienced hydrogen improvement.

<i> Picture Division of Power <i>

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