Great Green Fleet

The United States Navy's Great Green Fleet was an energy cost saving measure announced in 2009 to begin using a combination of conventional diesel fuel and biofuels in a 50/50 mixture.

[1] The first demonstration by the USS Nimitz carrier task group during RIMPAC (Rim of the Pacific exercise) in 2012 was completed without incident.

The Department of the Navy obtained 77.66 million gallons of cost-competitive, drop-in biofuels blends in support of the launch of the Great Green Fleet at $2.05 per gal.

"The Great Green Fleet will signal to the world America's continued naval supremacy, unleashed from the tether of foreign oil."

[11] The call for alternative fuels has already begun to drive innovation, with companies striving to create efficient processes to bring biofuel availability to the necessary scale the military requires.