U.S. Navy Partners with Ameresco for $173 Million Cleantech Energy Project

Ameresco to implement advanced energy solutions that will maximize reliability and resiliency at Virginia naval shipyard

Cleantech Energy Project at Norfolk Naval Shipyard

Ameresco, Inc., (NYSE: AMRC), a leading energy efficiency and renewable energy company, today announced that the U.S. Navy and the Ameresco Federal Solutions team are breaking ground to expand on-site generation, strengthen reliability, and enhance resiliency at Norfolk Naval Shipyard (NNSY) in Portsmouth, Virginia. This $173 million energy savings performance contract (ESPC) builds on Ameresco’s two decades of support to the NNSY mission to repair, overhaul, and refuel the most technologically advanced warships in the world. Because ESPCs leverage the guaranteed savings the projects generate to secure third-party financing, the Navy will not have to contribute up-front funding during the project’s implementation phase.

Ameresco is now preparing to construct a new 19-megawatt (MW) combined heat and power (CHP) plant, a 3MW battery energy storage system, and a microgrid control system that will provide the site with long-term energy security while reducing the electricity imported from the grid by 68 percent. As part of this modernization effort, Ameresco will refurbish existing backup power assets, integrate them into the microgrid, and upgrade the electric distribution system to provide redundant sources of supply.

This project also features a new industrial wastewater treatment plant (IWTP), a critical element of shipyard infrastructure that Ameresco has already begun to build. The effective treatment of contaminated wastewater that the site’s ship repair activities produce is critical to NNSY’s mission of ensuring that ships can return to service on schedule. Tasked by the Navy with assessing potential industrial process improvements, Ameresco developed a solution that produces enough savings from recycling water within the plant, enclosing exposed system components, and reducing operating costs to pay for the complete replacement of the site’s 40-year-old IWTP.

“This project, which features both a new industrial water treatment plant and the integration of a new CHP plant and battery storage within a microgrid control system, will deliver long-term efficiency, reliability, and resiliency in support of the NNSY mission,” said Nicole Bulgarino, executive vice president and general manager of Federal Solutions at Ameresco. “We value our long-term partnership with the U.S. Navy and take seriously our responsibility to help advance their mission and support the environment through the deployment of clean energy technology.”

After construction is completed in 2022, Ameresco will operate and maintain the CHP plant, IWTP, and microgrid until January 2044. Each measure is designed to operate in compliance with relevant Department of Defense and Navy cybersecurity requirements. Over the course of the 22-year performance period following construction, the project will generate more than $411 million in guaranteed cost savings.

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