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This boat makes its own hydrogen fuel from seawater
Key Excerpts from Article on Website of CNET


CNET, July 17, 2020
Posted: August 10th, 2020
https://www.cnet.com/news/this-boat-makes-its-own-hydrogen-f...

Somewhere in the vast ocean, a little boat covered in solar panels is doing something extraordinary: making its own hydrogen fuel from the seawater underneath it. The Energy Observer uses a patchwork of different cutting-edge technologies to generate enough energy to power nine homes each day. During the day, 200 square meters of solar panels charge up the boat's lithium ion batteries. Any extra energy is stored as hydrogen, thanks to a special fuel cell that goes by the name Rex H2 (short for Range Extender H2). The Rex H2 was made by Toyota, using components from Toyota's hydrogen-powered Mirai vehicle line. The fuel cell brings in seawater, removes the salt and then separates the H from the pure H20 with electricity. When the Energy Observer began its journey in 2017, it could only produce hydrogen while stopped. That changed in a big way with the addition of the Oceanwings, 12-meter sails that improved the efficiency of the Energy Observer from 18% to 42%, to the point where it can now produce hydrogen even while sailing. One of the main benefits of hydrogen is its ability to store more more electricity by weight than its lithium ion competition. This benefit is especially useful at sea. Because fossil fuels have had more than a century's head start, we now find ourselves far beyond the point of any one technology being a silver bullet for our growing energy needs. A sustainable future will require a patchwork of new technologies, like the one powering the Energy Observer.

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