Remember from two years ago when Toyota and Kenworth premiered a hydrogen-powered semi-truck? Yeah, me neither. But they haven't forgotten. In fact, they've shown off the first 10 examples of the vehicle last Monday.

Announcement on Monday, the automaker and truck manufacturer announced a two-phase plan for the hydrogen model. In the first phase, the trucks will transport goods under the guidance of Toyota, UPS, and various other firms through the LA and Long Beach ports, ranging from the Inland Empire to Merced.

After that, they will begin the second phase. Here, Shell will build hydrogen fueling stations in Willington and Ontario, California, expanding the vehicles' chances to refuel.

The trucks are based on the Kenworth T680 truck, commonly seen on the road. But instead of the usual diesel inline-6 engine, the hood holds a Toyota Mirai fuel cell stack and electric drive system. This powertrain offers a hearty 670 horsepower and a 300-mile range, but with the emissions being nothing more than water.

Hydrogen is considered the second most popular alternative fuel source (below electric, obviously) since the process of separating hydrogen from water can be done using green energies like wind and solar power.

With everyone else going hard into electrification, it's cool to see that some automakers are still giving hydrogen a chance.