catherine dunwoody, executive director of the california fuel cell partnership, thinks that investment is about to pay off. >> having been involved in this now for 15 years and seeing the evolution of the technology, you know, these guys are serious. they really see the fuel cell vehicle as the future of automotive technology. >> in 2014, hyundai will release a new fuel cell suv in california. followed by new models from toyota and honda in 2015. but even with the rollout of these new hydrogen cars can, drivers may hit a roadblock when it's time to refuel. >> my biggest complaint about this fuel cell car and in general is there's nowhere to fill them up. >> for now, there's just one place he can go to refuel his car in northern california. at this station in emeryville owned and operated by ac transit. 12 of its public buses run on hydrogen. at the hydrogen pump, filling up is similar to filling up at a regular gas station. >> it only takes four or five minutes to fill the same as a regular gasoline car. i had to make no adjustments at all. >> on a per mile basis, it costs about as muc