![](https://www.marinelog.com/wp-content/uploads/2021/02/NNNSY-groundbreakingjpg-300x225.jpg)
Norfolk Naval Shipyard breaks ground for $173 million cleantech energy project
The U.S. Navy and Ameresco Inc. have broken ground on a project at Norfolk Naval Shipyard (NNSY), Portsmouth, Va., that is being performed under a $173 million energy savings performance contract (ESPC)