renewable energy

California's plan to reduce carbon emissions from transportation anticipates a mix of battery-electric and hydrogen fuel-cell vehicles. Recharging batteries from the electric grid is relatively simple, but producing hydrogen fuel requires a good deal of energy to split pure hydrogen out of other...

Life is full of little ironies. And life in the 50 states that make up the United States of America is full of inconsistencies, including those among electric-car incentives from state to state. West Virginia, for instance, turns out to have offered offer a remarkably high income-tax credit of up...

Steelmaker ArcelorMittal plans to install equipment that converts carbon monoxide into ethanol.

Solar Impulse 2 set a flight record for time and distance by a solar-powered aircraft.

What's so magical about 1.5 volts, you may ask? It turns out that it's the practical voltage required to produce hydrogen gas from water using artificial photosynthesis, powered only by solar energy, at commercial scale. At least, that's the claim of a startup company called Hypersolar, which two...

Many electric-car owners start to think more seriously about the source of their electricity when they plug their cars in to recharge. And at least in California, data show that owners of plug-in electric cars have far higher interest in photovoltaic solar panels than drivers at large. Now a...

Toyota goes to the birthplace of the oil industry to demonstrate electrolysis.

Artificial photosynthesis involves breaking down CO2 and water molecules, and recombining them into fuel.

A wind farm for an island off the New England coast is expected to dramatically lower residents' electricity bills.

SolaRoad says results from six months of operating its prototype bike path are encouraging.

Tesla unveils its new line of batteries for energy storage.

Toyota launches a series of videos on renewable hydrogen.

A Texas city converts to renewable energy to save money.

Costa Rica claims to have powered itself entirely with renewable sources, mostly hydroelectric.

A new book claims the downfall of fossil fuels is coming.

Low oil prices won't affect renewable energy, analysts say.

Brace yourself, electric-car fans and advocates. It may be a bumpy ride for the next few days. Yesterday afternoon, the Associated Press covered a new study put out by the University of Minnesota that calculates the environmental impact of manufacturing and refueling vehicles with various...

A German town produces more energy than it needs from renewable sources.

Wind turbines are among the least-significant causes of bird deaths, a new study says.

Envision Solar's EV ARC is a self-contained solar charging and energy-storage system.