General Motors hasn't let its bankruptcy get in the way of its hydrogen fuel cell efforts, and made it clear during a recent event that it still considers hydrogen power one of several key propulsion technologies that it will continue to develop in the future.

"We are not abandoning our fuel cell technologies," proclaimed Charles Freese, executive director of GM's Global Fuel Cell Activities, during a presentation at the automaker's Burbank, California, fuel cell hub facility, "If we didn't intend to maintain it, we would have left it with the old GM."

If you've been following GM's fuel cell efforts at all, then you've no doubt heard of Project Driveway, a real-world test that began in late 2007 where the automaker outfitted a fleet of 119 Chevrolet Equinox vehicles with a hydrogen fuel cell stack providing the juice for its electric propulsion. Drivers have logged more than 1.3 million miles in all around the world during the test, and even got in a few accidents (no, nothing blew up).

While the project itself is winding down, Freese and Co. say the vehicles will still be used to test new electric motor and fuel cell components as well as to aid in further developing a hydrogen fueling infrastructure.

The centerpiece of GM's future hydrogen-powered efforts revolves around its Gen 2 hydrogen fuel cell stack, which is being designed to fit in a four-cylinder engine bay. It's reportedly some 220 pounds lighter than the stack powering the Equinox fleet, and uses about a third of the platinum (a metal critical to the overall process) than the present stack. Gen2 will employ fewer and lighter components and with its smaller overall size, GM hopes it will be able to spread the stack around to more vehicles in the future. In addition to the Gen 2 stack, GM is also continuing to develop its hydrogen storage solutions. The present fuel cell Equinoxes employ three hydrogen storage tanks. The automaker is moving to switch that out with a smaller, two-tank setup.

How long will this all take to bring to market? When it comes to hydrogen-powered vehicles especially, that's always the million-dollar question. GM says it is focusing on producing a "production intent" program by 2015 -- with "intent" being the proverbial hedging its bet word. But GM firmly believes that while by no means a silver bullet solution, hydrogen-powered vehicles will have a place in the Pantheon of future powertrains, and promised at the event that we'll see something "sooner than you think."