The parting of water - Green Hydrogen

For the moment, production at North America’s largest plant making hydrogen with renewable energy stinks. At SoHyCal’s facility near Fresno, California, manure from more than 7000 cows at the Bar 20 dairy ranch is channeled to a covered lagoon, where bacteria convert much of it to methane-rich biogas that’s run through fuel cells to generate electricity. Some of that power is shunted to SoHyCal’s electrolyzer, a railcar-size device that splits water into hydrogen and oxygen gas. The result: about 300 kilograms of “green” hydrogen a day, which is used to power a pair of Fresno city buses and a smattering of local hydrogen-fueled cars.

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