Retro-Commissioning (RCx) Program
Administered by: Illinois Smart Energy Design Assistance Center
Quick Summary
Retro-commissioning systematically identifies and fixes HVAC and other system inefficiencies in your building to reduce energy costs, improve comfort, and lower maintenance expenses. EnergySense provides a facility assessment, detailed recommendations with cost and savings analysis, and implementation support; non-residential facilities in Ameren IL territory can apply by contacting 800.214.7954 or emailing [email protected] to get started within two business days.
AI-generated summary • Updated 7/12/2026
Program Details
- Program ID
- 4454
- Effective Date
- 8/27/2007
- Last Updated
- 9/30/2022
Eligibility
Program Summary
RCx is the systematic discovery, documentation, review, and improvement of energy operations through recommendations that match building performance to current functional requirements. Retro-commissioning offers guidance and analysis to improve the energy performance of your building by focusing primarily on HVAC (heating, ventilating, and air conditioning systems). In addition to saving energy, RCx recommendations can contribute to longer equipment life, lower maintenance costs, and fewer comfort complaints. SEDAC provides a variety of energy efficiency services for facilities, including energy assessments, COVID-19 readiness building assessments, long-term energy planning, retro-commissioning, new construction design assistance, wastewater treatment plant energy assessments, and energy code assistance. Visit the website above or reach out to the contact listed for support.
Contact & Resources
Please verify current program details with the administering agency before making any financial decisions.