What is the role of an ESCO in energy efficiency projects?

• A. A government regulator overseeing energy efficiency standards.
• B. A utility that delivers electricity and bills customers.
• C. An Energy Service Company that designs, implements, and often finances energy efficiency projects, and is paid based on measured savings.
• D. A contractor that installs energy-efficient equipment but is not responsible for savings.

Answer: (C)

The concept being tested is that ESCOs (Energy Service Companies) provide a performance-based approach to implementing energy efficiency projects. They typically conduct an energy assessment, design and install efficiency measures, and often finance the project as well. What sets them apart is that their payment is tied to the actual energy savings verified through measurement and verification. This means the ESCO shares in the risk by guaranteeing a minimum level of savings, and the customer pays from the realized savings rather than just paying upfront or on a simple contractor bill.

This is why the best description is that an ESCO designs, implements, and often finances energy efficiency projects, with compensation based on measured savings. It captures the full package of assessment, implementation, financing, and performance-based payment that other roles don’t inherently provide. The other descriptions describe regulators, energy utilities, or installers who aren’t typically responsible for guaranteeing savings or providing ongoing financing and performance risk-sharing.