GM is testing the viability of its hydrogen-powered Equinox prototype as part of a Hawaiian pilot program.

The following story has been updated with the latest developments.

General Motors and Honda plan to team up in an effort to bring zero-emission hydrogen fuel-cell technology to the mass market by the end of the decade, the makers formally announced Tuesday morning.

Both GM and Honda have already begun fielding small test fleets of hydrogen-powered vehicles – as have a number of competitors including Toyota and Mercedes-Benz – but the goal of the new effort is to help solve nagging technical obstacles while driving costs down to mass-market levels. The makers also hope that by making a serious commitment to fuel cell technology they will encourage the energy industry to expand the availability of hydrogen, something essential to encourage consumer acceptance.

“The widespread use of future fuel cell vehicles requires a significant advance in cost reduction… and in the refueling infrastructure that will support them,” Tetsuo Iwamura, president of American Honda Motor Co., said during a joint news conference in New York City.  “Two companies can do more together than the simple sum of our individual efforts.”

A Honda FCX Clarity fuel-cell vehicle filling up at a solar-powered hydrogen pump in LA.

So far, GM’s efforts have resulted in a test fleet of 119 fuel cell vehicles, part of a program, called Project Driveway, designed to see how they perform in real-world use.  Honda, meanwhile, has leased 85 FCX and FCX Clarity fuel-cell vehicles for a similar day-to-day research program.

(Is hydrogen power making a comeback? To find out, Click Here.)

Hydrogen is the lightest of all elements and it produces essentially no emissions when burned or used in a device called a fuel cell stack.  The latter technology is what GM, Honda and most other automakers have been focusing on. The device brings hydrogen and oxygen from the atmosphere together in the presence of a platinum catalyst.  The result is a steady flow of electric current, with water vapor going out the vehicle’s tailpipe.

Experts like to describe a fuel cell as a “refillable battery” and, indeed, the electricity such a device produces can be used to power electric motors much like the many battery-electric vehicles beginning to roll into automotive showrooms in increasing numbers.

(Ford, Daimler, Nissan form fuel cell joint venture. Click Here.)

Unlike batteries, however, a fuel cell vehicle’s hydrogen tank can be refilled almost as quickly as a conventional gas tank.  That is, of course, if there’s a service station nearby. Unfortunately, there are just a handful open to consumer in the U.S., most of them – currently 10 – in Southern California, where GM and Honda have both been fielding small fleets of test vehicles.

The two makers are hoping that by teaming up and assuring energy suppliers they’re serious about mass production they can speed up the addition of new hydrogen pumps, California hoping to have as many as 100 locations available by the end of the decade.

Mercedes-Benz has begun marketing its hydrogen-powered F-Cell in Southern California.

While GM and Honda both know how to make fuel cells, they acknowledge that there is still plenty of work to be done to make the technology viable at a cost consumers will accept.  Today’s stacks – the equivalent of a gasoline vehicle’s engine – need to be smaller, lighter, less expensive and easier to manufacture.

(BMW and Toyota to partner on fuel cell research. Click Here for details.)

The open-ended joint venture is unusual in its breadth, GM and Honda agreeing to share absolutely all their knowledge and patents involving hydrogen power,” GM Vice Chairman Steve Girsky was expected to say.

“We’ll achieve this goal through shared expertise, economies of scale and common sourcing strategies,” said the former Wall Street analyst during the joint GM/Honda news conference. “We’re talking about a complete sharing of all our respective intellectual properties on the subject.”

Added a senior insider at one of the new partners who was not allowed to discuss the venture publicly, “You can’t hold something back. Either we win together or we don’t win at all.”

The likely result, company sources agreed, will be a fuel cell stack that they can share by the end of the decade. While the venture is currently limited to the research level, there appears to be support for jointly manufacturing the eventual technology to further reduce costs.

The Toyota FCV-R hydrogen prototype (f) and FT-EV III concept at their 2011 Tokyo Motor Show debut.

It remains anyone’s guess how quickly fuel cell vehicles can be ready for prime time. At one point, GM’s former Chairman Rick Wagoner had hoped to be in widespread production by the middle of this decade.

(Toyota aiming to offer 300-mile range with planned fuel cell vehicle. Click Here for the full story.)

Fuel cell technology gained significant momentum during the years around the end of the last Millennium. But due to the seemingly endless hurdles, the technology lost momentum in favor of battery power. Now that electrification is losing voltage there’s renewed interest in hydrogen. Steven Chu, outgoing Obama Administration Energy Secretary lately has been steering government support back to fuel cell research after curbing it during the president’s first term.

Nonetheless, a growing number of automakers have been amping up their hydrogen programs of late. Toyota is showing off a prototype fuel-cell vehicle at the 2013 Ideas Festival and promises to have a hydrogen car on the market by the 2015 model-year. Mercedes is fleet testing its F-Cell model in California, and Hyundai also has expressed plans to market a fuel cell model in the near future.

To get there, a growing number of makers are launching partnerships they hope will lower costs, speed up development and overcome the technical obstacles to mass market acceptance.

Don't miss out!
Get Email Alerts
Receive the latest Automotive News in your Inbox!
Invalid email address
Give it a try. You can unsubscribe at any time.