GM FastLane Blog

GMBlogs.com

An Eye Toward the Future

Elizabeth Lowery
Elizabeth Lowery

By Elizabeth A. Lowery
GM Vice President, Environment and Energy

This week I spoke at the Environmentally Friendly Vehicles Conference in the United Kingdom about GM’s advanced technology strategy, and would like to share some of the details I covered with you here, specifically our plans for bioethanol-based fuel systems and hybrids.

Those are only part of our solution, of course – GM has an advanced propulsion strategy to increase vehicle fuel economy and reduce emissions by executing a comprehensive technology plan that includes advanced internal combustion engines, new transmissions and hybrids in the near term, and hydrogen fuel cells in the long-term.

Beginning with the near-term strategy, our advancements in internal combustion engines have been well documented. These include improved variable valve timing systems, six-speed automatic transmissions, and advancements in diesel technology. We also offer vehicles that run on compressed natural gas, and liquid petroleum gas.

We’re also increasing the number of vehicles we have worldwide that run on bioethanol-based fuels. In North America we currently have 9 FlexFuel vehicles equipped to run on E85, which is 85 percent bioethanol and 15 percent gasoline. We have a million and a half such vehicles on the road right now, and current plans call for the addition of more than 2 million more through the 2010 model year.


E85 can cost less than gasoline; it’s clean-burning, reducing sulfur and aromatic hydrocarbons; and it’s domestically sourced and renewable, since it’s typically corn and sugar cane-based. If you compare a vehicle using E85 to a typical hybrid vehicle, the hybrid may get better gas mileage but the E85-powered vehicle saves hundreds more gallons of petroleum per vehicle per year, because only 15 percent of what you put in the tank is petroleum-based, compared with 100 percent in the hybrid’s tank.

In addition to our vehicles on sale in North America, we also have a large fleet of vehicles that run on bioethanol in Brazil. In Europe, the Saab 9-5 2.0t Biopower is already available in Sweden, and is Sweden’s best-selling environmentally friendly vehicle. It will be offered throughout Europe in demonstrator fleets next year. Saab will also offer the vehicle in China and Brazil.

It can run, without adjustment from the driver, on bioethanol-based fuel or gasoline in any proportions. It makes 180 horsepower while running on E85, compared to 150 hp on gasoline.

In the big picture, E85 is just one of what we see as a number of solutions to the energy equation, and we’re planning for all of them, so that we will be ready when the market decides which way to go. We’re not putting all of our eggs into one fuel tank. No single technology will resolve the environmental challenges we face, and that’s why our strategy is multi-faceted.

Hybrids are an important part of that strategy. There is little question that hybrids will remain an important part of the automotive landscape. But let’s keep in mind that we’re talking about a very small and very young market that is just now developing into higher volumes, and there is much to be discovered as to how big this market will get and how far it will grow.

Given the high investment and high cost of components inherent in the technology, we’ve embarked on a strategy that taps innovative approaches to give us the best footing possible in this growing market. We’ve also targeted traditionally higher consuming vehicles to maximize the benefits for the environment and make the fuel savings equation more attractive to the consumer.

For instance, customers for the hybrid system in the Saturn VUE Green Line that will be introduced in North America next year can expect a real payback on their initial investment in three years.

In 2007 the new fullsize SUVs will be available with our patented next-generation two-mode hybrid system, increasing their fuel efficiency even more, about 25 percent, with very little loss in performance. The addition of a second hybrid mode to the drive system improves efficiency, and reduces the need for large electric motors found in typical single-mode systems.

As you may have read, to make the new two-mode system the best system it can possibly be, and to get it into the hands of as many customers as possible, we have entered into a collaboration with DaimlerChrysler and BMW to develop it and make it more widely available. The combined development and market power of this group of companies – each with its own significant and unique strengths – is moving the two-mode hybrid system into the technology-of-choice for the industry. And we may add some more companies to the partnership before all is said and done… stay tuned on that one.

As I said, those are just two elements of our strategy that I discussed in the U.K. In future posts, we’ll discuss the rest, including our long-term hydrogen fuel cell plans.

37 Comments

Leave a Reply

(If you haven't left a comment here before, you may need to be approved by the site owner before your comment will appear. Until then, it won't appear on the entry. Thanks for waiting.)

To protect against spam, off-topic and abusive comments, all comments are reviewed before being posted to the blog. Please limit your comments to two on each topic and don't use all caps. Also, please note that some comments related to specific ownership issues are forwarded to customer assistance rather than posted here.