Alt Fuels

The House version of the new transportation infrastructure bill incorporates some of the spirit of the Green New Deal.

McLaren is planning to give synthetic fuels another try, although it knows that they won't replace battery-electric technology at this point.

Will the corn ethanol industry survive a year when refiners are holding back and gasoline pump prices drop as low as $1 a gallon?

With the addition of an EcoDiesel V-6 engine achieving an EPA 29 mpg highway, the Jeep Wrangler is no longer a gas-guzzler.

Despite controversies over a formulation that adds to smog issues, a Trump push for more E15 gas has been stymied by state rules and costly station retrofits.

Tech has lagged for light-duty engines designed to use gaseous fuels, like natural gas, propane, and biogas; an EU project has aimed to address that.

At least one startup may be getting close to scaling up fuel production with carbon captured from the air. But burning the fuel would still pollute.

President Donald Trump is expected Tuesday to direct the EPA to lift the seasonal ban on higher-ethanol E15 blends of pump gasoline linked to summer smog issues. The move has been anticipated for months. This timing for it, according to Reuters, is aimed at helping Republican candidates in...

Algae-based biodiesel has been hyped in the past as a renewable fuel that can be produced here in the U.S., lowering greenhouse-gas emissions without displacing food crops or taxing water supplies. And yet it still hasn’t arrived in any significant way. There’s no single factor to blame...

Nine months after announcing its intention to buy 10,000 Hyundai Nexo hydrogen-fueled cars, the South Korean government has halved its order. That's according to Business Korea, which said Tuesday that a report published by the government earlier this month indicated that the government plans to...

No single definition exists for the idea of "green car," and very few shoppers set out to go buy a green car. Instead, car buyers look for vehicles that meet their needs—with fuel economy or energy efficiency somewhere in that list of needs, whether higher or lower. Certainly the definition...

Building a fueling network turns out to be more of a challenge than many advocates, regulators, and drivers may have anticipated. The attempt to boost passenger vehicles fueled by cheap, abundant U.S. natural gas is now essentially over, with a mere 942 public natural-gas fueling stations...

As they say, the best compromise is usually the one that leaves all parties equally dissatisfied. When it comes to the Environmental Protection Agency's renewable-fuel mandate, it seems regulators have reached equilibrium. The latest skirmish in the long-running battle over the U.S. renewable-fuel...

You just don't hear the phrase "alternative fuels" as much as you did, say, 10 years ago. With a couple of million plug-in electric cars now on the world's roads, the idea of swapping in one hydrocarbon fuel for another may have passed its time. Admittedly biodiesel continues to make quiet inroads...

Let's say you buy the greenest car you can, one that uses a different kind of fuel, and drive it happily for several years. What happens when the supply of your fuel suddenly ends, and you can no longer fill up your car? That's just what happened to Duncan Chalmers of Seattle, who can no longer...

Tesla CEO Elon Musk made a bet that he'd build the world's largest lithium-ion battery in Australia in 100 days. If his company failed, Musk would personally pay for the project, but the battery is now ready for its first test ahead of full operation—and on schedule. The massive...

Tesla has never built anything but battery-electric cars. Now a Dutch gasoline company believes it's improved upon the Silicon Valley automaker's design with a hydrogen fuel cell—so much so that it wants to sell its solution to the general public. The Holthausen Group, a Dutch gasoline...

Earlier this month, the 30th World Solar Challenge kicked off in Darwin, Australia, with 42 competitors vying for victory. At the end of the 3,022-kilometer (1,880-mile) race from Darwin to Adelaide, one team emerged victorious in the highly contested Cruiser class. Solar Team Eindhoven, from the...

Following years of debate, the EPA said earlier this month it will study the possibilities of cutting the amount of ethanol in the United States' gasoline supply. Since 2007, the Renewable Fuel Standard (RFS) has required growing amounts of ethanol to be blended into U.S. fuel supplies, with...

Although a car powered solely by solar power is far from reality, the 30th anniversary of the World Solar Challenge showcased just how far the technology has come. World Solar Challenge kicked off its celebrations with this year's iteration of the solar-powered car race in Darwin, Australia, on...