Multifamily Energy Savings (MFES)
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MFES is delivered by northern Illinois utilities, ComEd, Peoples Gas/North Shore Gas, and Nicor, that provides comprehensive, building-wide energy efficiency upgrades for multi-family properties. This includes building envelope improvements, HVAC systems, and domestic hot water, both in tenant units and common areas. Rather than fragmenting gas and electric upgrades across separate programs with separate application processes, MFES delivers them together under a single point of contact who works with the owner throughout the entire process.
Eligibility is intentionally straightforward. Owners can qualify through several accessible pathways: location in a low-to-moderate income census tract or a designated disadvantaged area, rent rolls demonstrating rents that are affordable relative to AMI, or participation in a comparable federal, state, or local affordable housing programs. Qualifying owners receive low- or no-cost upgrades, and ongoing compliance and paperwork requirements are minimal.
Sources
Last updated: April 1, 2026
Program details
City: Regional
Status: Active
Program geography: Region
Property type: No Targeted Typology
Tool category: Building Maintenance & Operating Support
Year initiated: 2008
Affordability: at or below 80% AMI