A Revolving Loan Fund (RLF) is a source of money from which loans can be made. It has become a useful mechanism for financing energy efficiency projects in cities, counties, and states, as well as at institutions like university campuses. The RLF is called revolving because the money that is initially lent out is ultimately repaid and re-used for new projects, thereby recirculating the original capital. This case study details a revolving loan fund program in New York City, managed by the New York City Energy Efficiency Corporation, which focuses on funding clean energy investments in private sector buildings. 

This resource is part of the City Energy Project Resource Library. Launched in 2019, the library is the culmination of 6+ years of work on the ground in 20 U.S. cities to reduce energy use in large buildings. The City Energy Project is a joint project of IMT and the Natural Resources Defense Council (NRDC). For more information, visit www.cityenergyproject.org.

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