
ERG specializes in Retro-Commissioning (RCx) and Monitoring-Based Commissioning (MBCx) for existing buildings equipped with Building Automation Systems (BAS). As a certified Commissioning Authority (CxA), we also provide Commissioning (Cx) services for new construction.
- Eligibility: RCx is typically conducted on buildings 50,000 SF or larger, with an HVAC building automation system.
- Efficiency Gains: Studies show typical energy savings between 8-40%, with ERG routinely delivering over 20% savings.
- Fast ROI: Implementation paybacks are under 18 months, with whole-projects often exceeding 50% return on investment (ROI).
ASHRAE recommends periodic or ongoing retro-commissioning to counteract performance degradation in HVAC systems and controls. Our approach ensures sustained energy efficiency and lower operational costs.
No-Capital-Outlay Financing & Turnkey Implementation
An RCx study typically takes six months, followed by an additional six-month implementation phase. To eliminate financial barriers, ERG offers flexible financing solutions that require no upfront capital investment.
- Off-Balance-Sheet Leasing: If aging equipment requires replacement, ERG can structure financing into a lease instrument—cash-flow positive from day one.
- Maximized Incentives: ERG will apply for available utility incentives to reduce project costs, making RCx one of the most cost-effective energy efficiency strategies available.
ERG is a qualified partner for Ameren Missouri and Ameren Illinois Retro-Commissioning (RCx) programs, and a certified Commissioning Authority (CxA), helping building owners leverage utility incentives to achieve rapid paybacks—often under one year, with some projects recouping costs in just a few months.
With accelerated paybacks, guaranteed savings, utility incentive integration, and seamless financing, ERG makes it easy to improve building performance, reduce energy costs, and increase asset value—all without waiting for a new capital budget cycle.
Contact ERG today to unlock your building’s full efficiency potential.
For additional information, please refer to our blog post titled “Why RCx?“