SOURCES: https://www.energy.gov/scep/slsc/credit-enhancements-0; https://www.nga.org/publications/green-banks-an-overview-for-governors/; https://greenbanknetwork.org/wp-content/uploads/2019/04/Green-Bank-Aggregation-and-Securitization-Coalition-for-Green-Capital.pdf; https://www.nrel.gov/state-local-tribal/basics-green-banks.html