Posts tagged: carbon dioxide

Making Green Fuels, no Fossils Required

Efficient, potentially inexpensive reduction of carbon dioxide into carbon monoxide with nitrogen-doped carbon nanotubes as electrocatalyst Using solar or wind power to produce carbon-based fuels, which are commonly called fossil fuels, might seem like a self-defeating approach to making a greener world. But when the starting material is carbon dioxide, which can be dragged out […]

Michigan Thinks Burning Tires Counts as Renewable Energy

By Kate Abbey-Lambertz A Michigan bill aims to classify fuel made by burning tires and hazardous industrial waste as renewable energy, but environmentalists say that’s setting a dangerous precedent. Under the state’s Clean, Renewable and Efficient Energy Act of 2008, Michigan utility companies are required to derive 10 percent of their energy from sources like […]

Audi opens renewable energy E-gas plant in Germany

Audi has opened the doors to its new power-to-gas facility, which will make what the automaker calls E-gas, in Werlte, Germany. The plant produces hydrogen and synthetic methane and these clean fuels come from renewable energy, water and carbon dioxide. Audi says it’s the first automaker to “develop a chain of sustainable energy carriers.” “The […]

A Solution to Solar Power Intermittency

Converting methane to an alternative fuel using energy from the sun could reduce carbon-dioxide emissions. Burning natural gas emits about half as much carbon dioxide as burning coal, but it still produces large amounts of the greenhouse gas in the atmosphere. A novel device being developed at the Pacific Northwest National Laboratory (PNNL) could reduce […]

Audi to Make Fuel Using Solar Power

Audi is building a plant that will use solar and wind power to make methane from water and carbon dioxide. The plant, which will use technology developed by Stuttgart, Germany-based SolarFuel, is scheduled to start operation later this year. It will produce enough methane to power 1,500 of Audi’s new natural-gas vehicles, which also go […]