Supporters of the use of biofuel noted that depending on oil from nations like Iran and Venezuela is a threat to American security as well. They also noted that use of domestic biofuels pumps money into the American rural economy.
"Advance biofuels are not yet in full production and so they can't compete with oil, since the oil market is 100 years old," Senator Jeanne Shaheen (D-NH) said in Reuters. "But DOD investment has caused the price to drop dramatically over the last two years."
The United States military is the largest single user of fuel in the world, and any movement by the DOD towards biofuels and other renewable energy sources sends a message to investors that renewable energy has a market.
The military currently uses biofuels to power vehicles such as the "Green Hornet," an F/A-18 Super Hornet engineered to run on a 50/50 blend of conventional jet fuel and a biofuel that comes from camelina, a hardy U.S.-grown plant.
Besides biofuels, the U.S. military has been pushing for a decentralized power grid for security reasons, reported Forbes. The DOD and the Department of the Interior opened up 16 million acres of land for solar, wind and geothermal energy production in a memorandum of understanding signed earlier this year. By creating off-grid, renewable power supplies, the military can be prepared in the event of widespread blackouts and or breakdowns in the fuel supply line.