Retro-Commissioning | U.S. Green Building Council
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GBCI: 0920000866

Define retro-commissioning and benchmarking operating costs.
Eligible for .5 CE HOURS.
  • .5 CE

LEED version: v4, v2009

Published on: August 05, 2014

Average: 3.5 (6 votes)


This presentation will define Retro Commissioning, explain the importance of ASHRAE energy audits and you will learn how to benchmark operating cost.


  1. Define Retro-Commissioning
  2. Understand how Retro-Cx differs from an ASHRAE Energy Audit
  3. Understand the five basic phases of Retro-Commissioning
  4. Understand when NOT to do Retro-Commissioning
  5. Understand what to look for in a qualified Retro-Commissioning Agent
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Created by

Heapy Engineering
Dayton, OH
United States


Mark Hayden

Heapy Engineering
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Total 11 commentsLeave a comment

Mechanical Engineering Department Manager, Burns & McDonnell Engineering

real examples would help

WSP | Parsons Brinckerhoff


Project Manager, RMJM Arabia



This is very informative and educating course. The course signifies the importace of retro-commissioning of existing building that were not commissioned and how owner can reduce the operating cost of the facility..


This is very informative and educating course. The course signifies the importace of retro-commissioning of existing building that were not commissioned and how owner can reduce the operating cost of the facility..

Owner - Building Sage, Integrated Design + Energy Advisors, LLC
Pro Reviewer

This is a well done and foundational presentation on Retro-Commissioning. If you are considering performing this on your facility, or recommending it to a client, this presentation is the place to start. There are some particularly good points on the need to understand the scope and the process, as there are low cost/low scope providers out there and the results will not be what is expected if the well described process of this presentation are not followed.

In my experience, there are times that a retro-commissioning process is a good idea even if the building has been commissioned (which is a little counter to this presenter). If the building is changing owners, maintenance providers, or has experienced some sort of extreme event. The scope will be a little different (reduced) as there should be extensive documentation from the original process that can be used as a much higher starting point.

International Environmental Policy - Grad Student, CBRE
Pro Reviewer

I do not have any previous experience with the Retro-Commissioning Process, but the course made it easy for me to focus on every single detail it stated in order to understand it from: what's Retro-Commissioning to the most specific aspects of the process.
The course is a detailed explanation of the Retro-Commissioning process and will help any professional who just starts a career in the field as well as some intermediate-experienced individuals in the topic.
The course covers and meets all of the course's objectives and helps you to understand it all.
Since the Retro-Commissioning process is an energy effiency and saving strategy, the course is worth the investment for any building that could be improved on its operation and maintenance phase.
I would include some case studies, more images and examples to complement the well-explained theoretical base knowledge exposed during the presentation to make it a 5-star course.

CEO, BuildingWise, LLC
Pro Reviewer

This presentation clearly defines each and every facet of how to undertake retro commissioning, when to do that process and the many steps for a successful, complete and detailed result. Each of the 5 components is examined in depth with helpful additional comments that bring the process into clear view. Once you are armed with this information having retro commissioning completed in your building should bring quantifiable results that will bear considerable financial fruit, improved building performance and comfortable occupants.


Question relating to 'access' or 'assess' building performance(?)

Energy and Sustainabilty Account Manager, Johnson Controls

Questions no 10 seems to be incomplete..

Project Manager, Education Platforms, U.S. Green Building Council

Thanks for bringing this to my attention, Dennis. This has now been fixed!

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