Alt Fuels

Hydrogen is often lauded as a fuel of the future--a way to offer the combined benefits of electric vehicles and combustion cars in one, simple package. The reality is a little more complicated, as you might imagine. But one of hydrogen's long-standing issues, the cleanliness of its production...

We've been thinking a lot about natural-gas fueled vehicles, for reasons that will become clear in due course. Writing about green cars can occasionally be awkward, because there are different audiences for diesels versus hybrids, for plug-in electric cars, and for other types of alternative fuels...

The U.S. is sitting on top of a fuel goldmine, it seems. Not shale gas or crude oil, but fresh water and suitable land to produce 25 billion gallons of algae-based biofuel--a month's worth of the country's fuel needs each year. The discovery comes from the U.S. Department of Energy's Pacific...

The U.S. is increasingly awash in natural gas, so it's natural to consider it as a potential vehicle fuel. From passenger cars to long-haul trucks, both compressed natural gas (CNG) and refrigerated liquid natural gas (LNG) are being eyed as a replacement for diesel fuel and gasoline. Now, natural...

While Tesla Motors [NSDQ:TSLA] is on a roll--with a rave review from Consumer Reports and a profitable quarter--other startup automakers aren't faring so well. And now another small car company that received low-interest loans from the U.S. Department of Energy is in trouble and has halted...

Aston Martin has achieved its target of completing a racing lap around one of the world's toughest tracks--on hydrogen fuel. The hydrogen-powered Aston Martin Rapide S made its debut at a four-hour ADAC ACAS H&R-Cup VLN series race, at the infamous Nürburgring Nordschleife circuit in...

There are many reasons for wanting to wean ourselves off oil, but environmental issues and measuring out dwindling resources are two fairly significant ones. The trouble is, oil is incredibly convenient. It's energy dense and in cars, we can replenish it in minutes. So how do you take those...

Natural gas passenger cars have never really taken off in the U.S. like some thought they might. While the fuel is hugely popular in countries like Brazil, gasoline has always reigned supreme in North America. Or diesel, if you're a long-haul trucker--though that could be about to change. Natural...

Fiat-Chrysler CEO Sergio Marchionne isn't known for his love of electric vehicles. We really rate the company's first offering, the 2014 Fiat 500e electric car, but Sergio himself doesn't--speaking at the Society of Automotive Engineers 2013 World Congress, he reiterated that the company is losing...

Today, electric cars and other vehicles that run on alternative fuels simply cost more. That's a fact. Now a new bill introduced in the California Assembly aims to trim a bit more off the costs of buying and registering these cars by reducing their assessed value. The brainchild of Assemblyman Al...

Whatever the future energy mix, it's becoming apparent that coal and gas are both hugely consumptive and not entirely great for the environment--even if they provide large swathes of the world with their energy. Renewable energies like solar, wind and hydro on the other hand supply only a small...

Sometimes there comes an idea so audacious, so inspired, so downright jaw-dropping that it's worth covering even if it doesn't directly involve cars. You may know Earth Day is coming up on Monday, April 22. Localities and groups all over the country celebrate it. So, how has the Utah Department of...

For those readers living in one of America's big cities, concrete jungles strewn across the North American landscape, it's easy to forget that hundreds of thousands of acres are set aside in some states as National Parks. Isolated from the bustle of busy cities they're idyllic spots, precious for...

Given millions of years of adaptation to conditions, it's no surprise that nature is pretty good at doing what it does. Each leaf on a tree, and indeed the shape of a tree's canopy, is the work of refinements over millenia to capture the most sunlight possible to ensure the tree's growth. Why not...

We currently have two main issues in our transport future. The first is cutting down on fossil fuel use, ensuring our finite supplies can be used for longer than our current consumption levels would account for. The second is reducing greenhouse gas emissions, helping prevent runaway climate...

Say "carpool lane" or "HOV Access" or "white sticker" or "green sticker," and most California commuters will begin to drool uncontrollably. The ability to drive in relatively uncrowded High-Occupancy Vehicle (HOV) lanes with just a single person in the vehicle is a privilege that Californians will...

Leave it to the Germans to be blunt. Volkswagen Group CEO Martin Winterkorn has rendered his company's verdict on the future of hydrogen fuel-cell vehicles: They're not viable. Fuel-cell cars suffer from a lack of infrastructure, he said, will be far too costly for consumers, and use a fuel that...

For fans of fuel efficiency, the New York Times has good news and bad news. The good news is: drivers in the U.S. are using less gas these days. The bad news is: that's driving up the cost of gas. To anyone who's taken Econ 101, that probably seems counter-intuitive -- mostly because it is. To...

The sequester is now with us, and Congress has lower approval ratings than South American death squads, but President Obama is doggedly pursuing his green agenda nonetheless. Today, he will announce a plan to divert $2 billion of Federal oil and gas lease revenues over the next decade from general...

Since 2007, U.S. fuel producers have been required by law to include more and more ethanol and other biofuels in their blends. Now, Pike Research suggests, the biofuels mandate enacted as part of the 2007 U.S. Energy Act may be vulnerable to renewed political pressure. Pike notes that the drawbacks...