Alt Fuels

For a century, we've gotten almost all our gasoline and diesel fuel from petrochemicals. Now Silicon Valley startup Solazyme [NSDQ:SZYM] is testing diesel fuel derived from refining renewable oils--produced by specialized algae--in two Volkswagen turbodiesel models. Since July 2012, the VW Passat...

Fuel cells aren't the only way to use hydrogen as a fuel in vehicles--burning it works too. That's exactly what Aston Martin will be doing at the Nurburgring 24-hour race later this year, when it fields a hydrogen-fueled version of its Rapide luxury sedan. According to our sister site Motor...

Debate over the slow rollout and potentially damaging effects of gasoline with 15 percent ethanol blended in just continues to roll on. The latest to pile on are members of the Science Committee in the House of Representatives, which held a hearing Tuesday on the progress of EPA efforts to roll out...

No, that's not a misprint--Audi really is launching an A3 g-tron next to its A3 e-tron at the Geneva Motor Show. While the e-tron is a plug-in hybrid using Audi's in-development electric vehicle technology, the g-tron uses a different alternative fuel--natural gas. The 2014 Audi A3 g-tron is set to...

There are many facets to green motoring, but for some the prospect of buying a new hybrid or electric car is neither realistic nor desirable. For these people, biofuels may be an option, particularly those recycled from other products. Biodiesel made from used cooking oils is one such fuel, and is...

Their part in the future energy mix for vehicles may be small, but several companies are taking a renewed look at hydrogen fuel cell vehicles. That's if recent partnerships are anything to go by, at any rate--Toyota and BMW recently joined forces, as have Ford, Renault-Nissan and Daimler. The U.S...

It's no good simply producing green cars these days--you have to be green at every stage of producing the cars, too. With GM using solar at its Detroit-Hamtramck plant and Volkswagen recently unveiling a huge solar array at its Chattanooga plant, Honda is next to display its green credentials--with...

Whatever the merits of ethanol as a fuel or a gasoline additive--and it's taken some hits lately--it's still in the running. The same cannot be said, however, for cellulosic biofuels, those derived from advanced crops or waste products. On Friday, a Federal appeals court ruled that an EPA mandate...

The speculation is over, as Daimler has signed a three-way agreement with Ford and the Renault-Nissan Alliance to jointly develop future hydrogen fuel-cell technology. The technology, expensive to develop and not without its drawbacks, has been explored by each company in the past, and the...

Viewed from hundreds of feet, individual elements of Solar Field One, part of the Ivanpah power plant in the Mojave Desert take on a hypnotizing, scale-like appearance. The Californian solar plant and its thousands of heliostats are captured here by photographer Jamey Stillings as part of his...

For the most abundant element in the universe, hydrogen is remarkably hard to come by on good ol' planet earth. While the techniques for extracting it are easy enough to understand, the energy required to do so is often significant--meaning hydrogen fuel cell vehicles aren't as squeaky-clean and...

Love or hate it, oil is an incredibly useful product. Used to create everything from plastics to pharmaceuticals--and of course, fuel for transportation--its environmental credentials might be low, but it's been an essential substance in creating the world we live in today. So too have other energy...

Back in the 1930s, the United States produced the vast bulk of the oil it burned. It wasn't until the 1973 oil crisis that things like OPEC and fuel efficiency entered the U.S. consciousness. And it took a while longer for the phrase "energy security" to come along. That's what led to the concept...

The United Arab Emirates isn't known for its aversion to fossil fuels. The country has made its money from the stuff, and rapidly expanded in the last four decades into the vastly wealthy, oil-rich nation it is today. Yet as of December last year, McDonalds delivery trucks in the country have...

Natural gas is increasingly considered a cleaner alternative to coal when it comes to energy production--not to mention a greener alternative to gasoline when used in vehicles like the Honda Civic Natural Gas. However, a new study suggests its green credentials may be damaged by methane...

The U.S. Department of Energy (DoE) has announced it will put up another $10 million in funding towards the expansion of biofuels. It's the second positive announcement in recent weeks for biofuel advocates, as the Senate's "fiscal cliff" avoidance measures have also seen many biofuel initiatives...

It wasn't until 2 am yesterday morning that the U.S. Senate voted 89 to 8 to approve a bill to avert the "fiscal cliff" that took effect on New Year's Day. The House of Representatives then took an entire day of political wrangling before voting 257-167 to approve the Senate bill late yesterday...

Paying too much for that fast-food burger? Blame the government's ethanol targets, says the oil industry--and it's sueing the Environmental Protection Agency for what it describes as "overzealous" biofuel mandates. The American Petroleum Institute filed the lawsuit over the EPA's decision to...

Last month, the governors of eight states and almost 200 members of Congress asked the U.S. Environmental Protection Agency to suspend rules that mandate production of ethanol for use in gasoline. On Friday, the EPA said no. The request to suspend parts of the 2007 Renewable Fuel Standard came from...

Crude oil, from which all fossil fuels are made, is a dwindling resource. There will come a point, some time in the future, where the expense of extracting it from deep under the ground becomes too great for the return on investment. While one solution is to wean ourselves off fossil fuels...