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Alternative fuels, also known as non-conventional and advanced fuels, [1] are fuels derived from sources other than petroleum. [2] Alternative fuels include gaseous fossil fuels like propane, natural gas, methane, and ammonia; biofuels like biodiesel, bioalcohol, and refuse-derived fuel; and other renewable fuels like hydrogen and electricity.
The Clean Cities Coalition Network is a coordinated group of nearly 100 coalitions in the United States working in communities across the country to advance affordable, domestic transportation fuels, energy-efficient mobility systems, and other fuel-saving technologies and practices. The U.S. Department of Energy ’s Office of Energy ...
The Office of Energy Efficiency and Renewable Energy (EERE) is an office within the United States Department of Energy.Formed from other energy agencies after the 1973 energy crisis, EERE is led by the Assistant Secretary of Energy Efficiency and Renewable Energy (Assistant Secretary), who is appointed by the president of the United States and confirmed by the U.S. Senate.
United States biofuel policies. United States policy in regard to biofuels, such as ethanol fuel and biodiesel, began in the early 1990s as the government began looking more intensely at biofuels as a way to reduce dependence on foreign oil and increase the nation's overall sustainability. Since then, biofuel policies have been refined, focused ...
“In 2024 the aviation industry worldwide used almost 100 billion gallons of fuel,” said Mohnen. “But by the year 2050, (European leaders) told the aviation industry they need to have 70% of ...
A conical flask of "green" jet fuel made from algae. Algae fuel, algal biofuel, or algal oil is an alternative to liquid fossil fuels that uses algae as its source of energy-rich oils. Also, algae fuels are an alternative to commonly known biofuel sources, such as corn and sugarcane. [1][2] When made from seaweed (macroalgae) it can be known as ...
A form of it was signed into law in February 2009 as the American Reinvestment and Recovery Act, which invests $26.6 billion in renewable energy, $19.9 billion in energy efficiency and conservation, $18.1 billion in transit and high-speed rail, $10.5 billion in electric power transmission upgrades, $6.1 billion in alternative fuel vehicles, $3. ...
Renewable natural gas (RNG), also known as biomethane, is a renewable fuel and biogas which has been upgraded to a quality similar to fossil natural gas and has a methane concentration of 90% or greater. [1] By removing CO2 and other impurities from biogas, and increasing the concentration of methane to a level similar to fossil natural gas, it ...