•   Retro-Commissioning  


Retro-commissioning, also referred to as recommissioning, reduces energy use and cost in buildings by identifying opportunities to optimize the HVAC system. When properly executed, retro-commissioning reduces annual energy use by 5–10%, and sometimes up to 20%, with limited expense exposure and negligible disruption. Furthermore, many utilities offer retro-commissioning incentive programs that help underwrite project costs leading to outstanding ROI.

Although not as common as energy audits, retro-commissioning is a well-established and worthwhile service suitable for almost every building. Even buildings where energy audits or assessments have been performed recently may be excellent candidates for retro-commissioning. The energy engineers at Sieben Energy Associates have earned a strong reputation for delivering results. Our portfolio of retro-commissioning projects comprises over 55 million square feet and has generated over 50 million kWh of annual electricity savings and over 1 million therms of annual natural gas savings for our valued clients. 

What can you expect from retro-commissioning with Sieben Energy Associates?

  • Assessment of baseline energy performance
  • Data-driven assessment of energy reduction potential from HVAC system and controls
  • Focus on low-cost, rapid-payback energy-saving opportunities
  • Collaboration with facility team about which areas to explore in greater depth
  • Evidence-based energy-saving recommendations supported by data
  • Detailed scopes of work for opportunities selected for implementation
  • Client’s choice of vendors/contractors to complete project implementation
  • Measurement of post-implementation performance to verify savings
  • Comprehensive written reports of project results

Why should you choose Sieben Energy Associates to perform retro-commissioning?

  • Deep experience with buildings of all types and sizes
  • Authorized service provider for utility programs across the country
  • Proprietary tools and methods for accurately projecting energy savings
  • Data-driven insight rather than intuitive or rule-of-thumb rationale
  • Financial metrics based upon client’s actual unit cost of energy
  • Maintaining occupant comfort is a top priority
  • History of award-winning projects

Sieben Energy Associates is authorized to provide retro-commissioning services through incentive programs in the following utilities:

How can you get started on retro-commissioning from Sieben Energy Associates?

  • Contact us to learn more and discuss your energy goals
  • Share with us your building's historical electricity and natural gas usage information
  • Schedule a site screening visit so that we can assess project feasibility
  • Your facility may qualify for a utility incentive program; we can review with you the program requirements
  • If your facility doesn't qualify for a utility incentive program, or your utility does not offer a program, we can talk with you about designing a custom project
  • I expected quality work when I partnered with Sieben Energy Associates on a recent retro-commissioning project. My high expectations were greatly exceeded as they provided a level of service and expertise that I have not encountered in the industry. Their work pushed our project to exceed our goals by more than 100%.

    -Matt Roman, Director of Global Real Estate and Facilities, Visteon Corporation

  • We have partnered with Sieben Energy Associates over the past four years, achieving more than $400,000 in annual energy cost savings for three of our buildings. Across our portfolio, we may potentially add millions of dollars to our bottom line with their help.

    -Kevin Purcell, Executive Vice President and Chief Operating Officer, MB Real Estate

  • I have very much enjoyed collaborating with Sieben Energy Associates on planning and executing retro-commissioning projects across JLL’s Midwest portfolio. Their team consistently out performs, attending to the smallest details without losing sight of our overarching goals. With the help of Sieben Energy Associates, JLL is taking a strategic, cost-effective approach to reducing operating costs for our clients and making the buildings we manage more energy-efficient. We are committed to sustainability and it has been a wonderful experience partnering with a company that shares that commitment.

    -Jennifer Christakes, Managing Director, Regional Operations Manager, JLL