Ameresco

In a world increasingly focused on sustainability, organizations have an opportunity to strengthen their energy systems while advancing sustainability goals. Ameresco is at the forefront of this transformation, helping organizations navigate the complexities of rising climate demands, aging infrastructure and carbon regulations through comprehensive energy overhauls. These modernize core infrastructure, such as high-efficiency HVAC systems, advanced lighting for cost savings, and combined heat and power (CHP) units that generate electricity and heat from a single fuel source. Solar arrays, battery storage systems and smart meters further support energy independence, grid stability and real-time performance tracking.

To make these upgrades financially viable, Ameresco structures its projects through budget-neutral models such as energy savings performance contracts, power purchase agreements and energy as a service. This approach ensures guaranteed savings and measurable CO2 reductions, removing f inancial barriers for the clients.

Founded in 2000 by George Sakellaris, Ameresco develops and operates a broad portfolio of distributed energy resources. With over 60 offices across North America and Europe, it remains a trusted partner in clean energy transformation.

“Ameresco’s impact—and future impact— motivates me every day. As a pioneer in clean energy, our journey has granted us the opportunity to spearhead and shape the energy sector’s transformation,” says Sakellaris, president & CEO.

Scalable Energy Solutions with Strategic Planning Tools

That vision is realized through tailored energy strategies for a wide array of clients, including federal agencies, educational institutions, healthcare facilities, utilities, housing authorities, transit systems and industrial sites. Each solution is customized to align with the sector’s operational needs, regulatory context and sustainability goals. Backed by a strong network of regional offices, Ameresco blends global expertise with local execution, ensuring compliance, community alignment and effective project delivery.

Beyond implementation, Ameresco provides full-service operations and maintenance, retro-commissioning and staff training to support long-term system performance. Its experience across K–12 schools, higher education, healthcare and housing allows it to adapt technical expertise to sector specific challenges.

To empower better planning, Ameresco offers its proprietary AssetPlanner platform, helping organizations evaluate energy savings and investment returns. It also leads educational webinars and publishes white papers that guide stakeholders through complex energy decisions—reinforcing its commitment from initial design to ongoing impact.

Smart Tech for a Sustainable Tomorrow

At the heart of Ameresco’s approach is the integration of sustainability with innovation. The company employs technologies like advanced metering infrastructure, electric vehicle charging networks, building automation systems and HVAC, LED lighting and CHP systems to enhance performance while reducing emissions. This commitment to innovation is exemplified in several notable projects.

In California, the Keller Canyon Renewable Natural Gas Plant significantly reduces greenhouse gas emissions by converting landfill gas into renewable natural gas. At Fort Detrick in Maryland, Ameresco implemented an 18.6 MW solar facility complemented by a 6 MW battery energy storage system, enhancing energy resilience. In Greece, the Kefalonia Wind Project, a 9.2 MW initiative, contributes to the island’s sustainability goals. Additionally, at Joint Base McGuire-Dix Lakehurst in New Jersey, Ameresco developed a comprehensive energy solution featuring a 31.5 MW solar system, battery storage and microgrid controls to support decarbonization and energy reliability.

These initiatives underscore Ameresco’s ability to deliver large-scale, high-impact solutions across diverse environments and critical infrastructure. The company’s excellence in clean energy transformation has been recognized by organizations such as Environment + Energy Leader, which awarded Ameresco for its innovative projects at Fort Detrick and London Stadium, highlighting their contributions to energy resilience and sustainability.

Building on this foundation, Ameresco extends its impact through a commitment to community engagement. Embodying its mantra of “doing well by doing good,” the company’s C.A.R.I.N.G. approach reaches communities ranging from schools and housing authorities to municipalities and underserved regions. By embedding care, accountability and impact into every project, Ameresco exemplifies how business success and community stewardship can collaboratively power a sustainable future.