The Illinois Energy Efficiency Loan Program, administered through AFC First and funded by participating utilities, provides loans to customers of Ameren Illinois, ComEd, Nicor, North Shore Gas, and Peoples Gas. Typically, loans of up to $20,000 can be repaid over the course of 3, 5, or 10 years. The interest rate is currently set at 4.99% although certain loan specifications may vary from utility to utility.