Citywide initiative to generate 14.5 million kWh annually, reduce utility costs, and enhance long-term energy independence

Ameresco, Inc., (NYSE: AMRC), a leading energy infrastructure solutions provider, broke ground on transformative Solar Project for the City of Chandler, designed to strengthen energy security, curb rising utility costs, and advance sustainability goals. This project will deploy solar photovoltaic (PV) systems across 22 municipal facilities, creating a municipal blueprint for resilient, cost-efficient energy solutions.

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Ameresco and the City of Chandler mark the groundbreaking of a major solar project, highlighting a new chapter in the city’s energy infrastructure.

The portfolio totals 7.74 MW-DC / 5.85 MW-AC and is designed to produce more than 14,500,000 kWh per year, helping the city manage rising energy costs and reduce reliance on external energy markets. The initiative is expected to offset over 60% of the annual electricity requirements for the participating sites and provide over $1 million in annual utility savings. The project cost will be partially funded through the Federal Investment Tax Credit for Renewable Energy.

“Our challenge was to reduce the City’s energy spend and environmental footprint without compromising day-to-day operations,” said Steven Turner, Sustainability & Performance Officer for the City of Chandler. “Partnering with Ameresco enables us to meet that goal by deploying right-sized solar across 22 facilities, cutting annual utility costs, and offsetting electricity use.”

The portfolio includes a mix of covered parking canopies at city buildings, rooftop-mounted systems for smaller facilities, and large-scale, ground-mount arrays at water treatment facilities including the city’s Airport Water Reclamation Facility. This diversified design aligns system type and siting with operational needs across the city to maximize on-site generation and economic value. Buildings in the portfolio include City Hall, Chandler Nature Center, and Sunset Library, as well as fire and public safety stations, among others.

“Chandler’s objective was to take advantage of their excellent solar resources while delivering meaningful utility savings across their facilities citywide,” said Lou Maltezos, President of Central & Western USA, Canada Regions at Ameresco. “By tailoring canopy, rooftop, and single axis tracking systems to each site, we are helping the City of Chandler secure reliable, long-term renewable energy and reduce exposure to unpredictable utility costs.”

As systems come online, the city anticipates steady progress toward its cost-savings and sustainability targets, supported by the ITC and Ameresco’s design-build delivery. Construction is expected to be completed in 2026.

To learn more about solar solutions offered by Ameresco, visit www.ameresco.com/solution-solar-power/.

About Ameresco, Inc.

Founded in 2000, Ameresco, Inc. (NYSE: AMRC) is a leading energy infrastructure 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 energy infrastructure solutions to Federal, state and local governments, utilities, data centers, 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 Chandler:

Chandler, Arizona has built a reputation as a Community of Innovation. Life in Chandler goes beyond a thriving and dynamic business community with progressive entrepreneurship. Known for its rich diversity, the city offers an outstanding quality of life for all generations with great schools and recreational opportunities. Chandler has grown to become the state's fifth-largest city with a population of more than 291,000. Chandler has been named one of the nation's Best Places to Find a Job and Best Cities for Women in Tech. The city also is one of the safest communities in the nation and boasts AAA bond ratings from all three national rating agencies, one of a select few cities and towns nationally to receive this prestigious designation. For more information, visit chandleraz.gov, or connect with Chandler on social media.

The announcement of a customer’s entry into a 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 September 30, 2025.

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