The Great Green Fleet (GGF) is a year-long, Department of the Navy initiative that demonstrates the sea service’s efforts to transform its energy use. As one of the Secretary of the Navy’s key energy goals, the purpose of the GGF is to make our Sailors and Marines better warfighters, able to go farther, stay longer and deliver more firepower.
Navy Secretary Ray Mabus chose the name Great Green Fleet to honor President Theodore Roosevelt’s Great White Fleet, which helped usher in America as a global power on the world stage at the beginning of the 20th Century. The GGF will usher in the next era of Dept. of Navy energy innovation.
The centerpiece of the Great Green Fleet is a Carrier Strike Group (CSG) that deploys on alternative fuels, including nuclear power for the carrier and a blend of advanced biofuel made from beef fat and traditional petroleum for its escort ships. These biofuels have been procured by DON at prices that are on par with conventional fuels, as required by law, and are certified as “drop-in” replacements that require no engine changes or changes to working procedures. The CSG also uses energy efficient technologies and operating procedures called Energy Conservation Measures (ECMs) during the course of its normal operations.
Throughout 2016, other Dept. of Navy platforms including ships, aircraft, amphibious and expeditionary forces, as well as shore installations, will take part in the GGF by using energy efficient systems, procedures, and/or alternative fuel during the course of planned mission functions worldwide.
Ashore, DON installations have in procurement 1.1 gigawatts of renewable energy – or about one-half of overall DON power requirements as of January 2016. Renewable energy projects at our facilities can help increase resiliency by enabling them to continue operations in the event of a commercial grid disruption.
The U.S. Navy has not commissioned a battleship since 1944. Donald Trump now wants as many as 25. The first, USS Defiant, will displace more than 35,000 tons, carry hypersonics,...
NORFOLK, Va. — America’s newest commissioned aircraft carrier USS Gerald R. Ford (CVN-78) tied up at Pier 11 this morning after 326 days at sea, completing one of the longest deployment by...
Why America’s Cargo Demand Is Building Maritime Capacity Everywhere but at Home By Bruce Kimbrell (Policy Op-Ed) I spent last week at the Sea-Air-Space Conference at the Gaylord in Maryland...
April 29, 2026
Total Views: 7842
Get The Industry’s Go-To News
Subscribe to gCaptain Daily and stay informed with the latest global maritime and offshore news
— just like 105,765 professionals
Secure Your Spot
on the gCaptain Crew
Stay informed with the latest maritime and offshore news, delivered daily straight to your inbox
— trusted by our 105,765 members
Your Gateway to the Maritime World!
Essential news coupled with the finest maritime content sourced from across the globe.