Ameresco Celebrates the Completion Solar Canopy Project with the City of Pendleton, Oregon

The solar canopy, part of a multiphase infrastructure improvement project, is expected to offset significant energy costs and generate 325,000 kWh of electricity annually

Ameresco, Inc., (NYSE:AMRC), a leading energy solutions provider dedicated to helping customers navigate the energy transition and the City of Pendleton in Oregon today hosted a ribbon-cutting ceremony to celebrate the completion of a 240-kilowatt (kW) solar photovoltaic (PV) canopy system at the Pendleton Wastewater Treatment and Resource Recovery Facility (WWTRRF).

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Ameresco and the City of Pendleton celebrated the completion of new infrastructure upgrades with a ribbon cutting ceremony at the Wastewater Treatment Plant.

This innovative solar canopy--the first of its kind in the region--represents a major milestone in the City's ongoing efforts to enhance energy resilience, efficiency and innovation, supported by Ameresco. The solar canopy is expected to annually generate 325,000 kilowatt-hours (kWh) of electricity, which will offset approximately 30% of the WWTRRF's total energy consumption.

"This project marks a major step forward in our commitment to developing efficient and resilient solutions for our city," said Kyle Willman, Superintendent, at Wastewater Treatment Resource Recovery Facility. "The solar canopy not only helps reduce our energy costs and environmental footprint, but it also enhances the performance of our wastewater treatment facility in ways that benefit the entire community. We're grateful for our partnership with Ameresco and for the state and local support that made this forward-thinking investment possible."

In addition to providing on-site energy production and cost savings, the canopy shades the WWTRRF's chlorine contact chamber, helping to improve water quality, reduce effluent temperature and support a healthier aquatic ecosystem. The project is part of a multiphase infrastructure improvement initiative and was delivered through an Energy Savings Performance Contract (ESPC) with Ameresco, who provided price and performance guarantees and helped ensure participation from disadvantaged and local businesses.

The Pendleton WWTRRF project was funded through a combination of state grants (including ODOE's C-REP grant), utility incentives and city resources. As part of the City's ongoing efforts to increase the resilience and reliability of the WWTRRF, plans are underway for a future battery energy storage system (BESS) to complement the solar canopy and further decrease the operational costs of the facility.

"We are proud to partner with the City of Pendleton in its mission to build a resilient future," said Lou Maltezos, President of Central & Western USA, Canada Regions at Ameresco. "This solar canopy project is a great example of how innovative energy solutions can deliver meaningful economic benefits and support essential city infrastructure. We're not only improving operational efficiency but also contributing to the health of the local ecosystem and empowering the community with long-term energy savings."

For more information about Ameresco and its energy efficiency and resiliency infrastructure solutions, visit www.ameresco.com.

About Ameresco, Inc.

Founded in 2000, Ameresco, Inc. (NYSE:AMRC) is a leading energy solutions provider dedicated to helping customers reduce costs, enhance resilience, and decarbonize to net zero in the global energy transition. Our comprehensive portfolio includes implementing smart energy efficiency solutions, upgrading aging infrastructure, and developing, constructing, and operating distributed energy resources. As a trusted full-service partner, Ameresco shows the way by reducing energy use and delivering diversified generation solutions to Federal, state and local governments, utilities, educational and healthcare institutions, housing authorities, and commercial and industrial customers. Headquartered in Framingham, MA, Ameresco has more than 1,500 employees providing local expertise in North America and Europe. For more information, visit www.ameresco.com.

About the City of Pendleton

The City of Pendleton is a vibrant and active community with a rich heritage and a lively history. Located at the base of the Blue Mountains in Eastern Oregon, Pendleton is well known for its world-class Pendleton Round-Up rodeo, a thriving arts culture and many historic attractions. To learn more, visit www.pendletonor.gov.

The announcement of completion of a customer's project contract is not necessarily indicative of the timing or amount of revenue from such contract, of Ameresco's overall revenue for any particular period or of trends in Ameresco's overall total project backlog. This project was included in Ameresco's previously reported contracted backlog as of March 31, 2025.

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Ameresco: Leila Dillon, 508-661-2264, [email protected]