Green Source Advantage (GSA) enables significant progress toward the DOD's sustainability goals for military installations in the Carolinas CHARLOTTE, N.C., June 18, 2024 /PRNewswire/ -- The United States Department of Defense (DOD) has signed on to Duke Energy's (NYSE: DUK) Green Source Advantage (GSA) program to provide renewable energy on behalf of the five largest DOD major military installations across North Carolina and South Carolina, including Fort Liberty, USMC-Camp Lejeune, USMC-Cherry Point, USAF ...