Retrocommissioning typically saves 16 percent on energy bills* and produces a payback within one year.

Retrocommissioning (RCx) is the process of improving the performance and energy efficiency of building systems, equipment, and operations as a whole. The Focus on Energy RCx Offering provides incentives to investigate and implement lower cost measures to improve the operation of existing equipment. 

The RCx Program is designed for a variety of facilities including, but not limited to:

  • Commercial
  • Industrial
  • School
  • Government

The program seeks out building owners and managers of existing buildings who are motivated to optimize existing equipment and controls. Eligible facilities are required to be five years or older and 50,000 ft2 or larger.

Higher cost capital improvement projects identified during the RCx audit may be eligible for prescriptive or custom incentives outside the RCx Offering.

HVAC fans

*Parrish, Granderson, Mercado, Mathew 2013. “Improving Energy Efficiency through Commissioning: Getting Started with Commissioning, Monitoring, and Maintaining Performance” Lawrence Berkeley National Laboratory.


  1. Contact an approved RCx Service Provider (RSP) Trade Ally to evaluate your facility for the possible benefits of an RCx Audit. If you are interested in becoming an RSP, complete the application here.

  2. Your RSP will provide a proposal for the audit and assist you in completing and submitting the RCx Enrollment Application to Focus on Energy.

  3. After enrollment, complete the RCx audit and select measures to implement. 

  4. Your RSP will submit the RCx savings workbook , audit report, and audit invoice to Focus on Energy based on your selected measures.

  5. Focus on Energy will review and approve the workbook. Audit phase payment will be sent upon received signed incentive agreement from the customer.

  6. Implement chosen RCx measures within 180 days.

  7. Your RSP will resubmit the workbook with savings verification and implementation invoices.

  8. Focus on Energy will review and approve the final workbook. Implementation phase payment will be sent upon receiving signed project completion notice from customer.

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Additional Information

You can review the RCx Training PowerPoint for more details.

Incentive Structure

Incentives for the implementation of qualified energy-saving measures follow a simple dollar per kWh or Therm installed methodology based on verified energy savings.

Complete Audit $0.02/est. kWh
First Incentive Payment  50% of audit cost*
Implement Measures $0.03/ verified kWh
$0.40/ verified Therm
Second Incentive Payment All incentives are not to exceed 75% of all RCx costs
Total Incentive $0.05/kWh,

*After the audit, a 1st payment is provided on good faith, with the understanding that implementation will occur. If energy savings aren’t achieved to the necessary level to justify the 1st payment, the appropriate portion will need to be refunded.   

Maximum incentive for the Large Energy Users Program is $300,000/project and $500,000/customer per calendar year. The Agriculture, Schools and Government Program and Business Incentive Program is limited to $200,000/project and $400,000/customer per calendar year.