ESPC (Energy Saving Performance Contract)

Thermal photograph showing heat loss from a window as colored regionsAn ESPC, or Energy Savings Performance Contract, is aimed at eliminating the fiscal constraints that can stop a project before it is even conceptualized. With an Ameresco ESPC, customers can renew facilities and reduce energy costs without the need for capital expenditures and the political complications that arise during the budgeting process.

Through Energy Savings Performance Contracting, Ameresco pays all costs involved in identifying and installing new or upgraded energy-efficient equipment. The energy upgrades are paid for by a portion of the cost savings resulting from these improvements over a set term. At the end of the ESPC, the customer owns all of the improvements and receives all of the continuing savings.

Whether it is a performance contract for federal or local government, education, healthcare, manufacturing, public housing or retail, Ameresco can meet any customer’s unique needs.

Aerial view of Arizona State University stadium with solar panels


Ameresco and Arizona State University have formed an extensive partnership as ASU works toward its goal of achieving climate neutrality by 2025. This project, funded through energy savings performance contracts, has already saved the university $8 million annually in energy expenses and reduced energy consumption by more than 98,505,000 kWh and 1,460,00 therms each year. The project includes extensive use of solar power and solar thermal systems, including solar car ports, as well as cogeneration, energy efficiency measures, live energy dashboards and long-term capital planning aided by analytics software developed by Ameresco.

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