Vox: "HyTech Power, based in Redmond, Washington, intends to introduce three products over the next year or two.
"The first will use hydrogen to clean up existing diesel engines, increasing their fuel efficiency by a third and eliminating over half their air pollution, with an average nine-month payback, the company says. That’s a potentially enormous market with plenty of existing demand, which HyTech hopes will capitalize its second product, a retrofit that will transform any internal combustion vehicle into a zero-emissions vehicle (ZEV) by enabling it to run on pure hydrogen. That will primarily be targeted at large fleets.
"And that will tee up the third product — the one Johnson’s had his eye on from the beginning, the one that could revolutionize and decentralize the energy system — a stationary energy-storage product meant to compete with, and eventually outcompete, big batteries like Tesla’s Powerwall."