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Existing Building Commissioning (EBCx) Pre-Screening Tool

Available in PDF format (900 Kb)

This EBCx pre-screening tool* has been developed to help identify the most appropriate building candidate(s) for existing building commissioning, by evaluating the improvement potential and the readiness of an eventual project. Prioritizing a portfolio of buildings and selecting those with the greatest likelihood for success helps to capitalize on short-term paybacks and to support long-term planning. This pre-screening tool is designed to be used at the planning phase of the standardized EBCx process.

* Updated version of the previous Recommissioning (RCx) Pre-Screening Tool


Natural Resources Canada would like to thank the following organizations for their assistance during the development of the tool:

TST Inc., Energy@Work Inc., Kolostat Inc., Technosim, Therméca and Portland Energy Conservation Inc. (PECI).

As part of the various consultations conducted, several other organizations provided comments and suggestions for improvements. Their efforts are also gratefully acknowledged.

Main references

- CanmetENERGY's Advanced RCx Course, ISBN: 978-1-100-90417-7, Cat.: M154-18/2008F-PDF, NRCan, Nov. 2008.

- CanmetENERGY's RETScreen International Clean Energy Project Analysis Software (Version 4), available at:

- CanmetENERGY's RCx Guide for Building Owners and Managers, ISBN 978-1-100-10035-7, Cat.: M39-123/2008E-PDF, NRCan, 2008.

- Lia Webster, Matthew Gibbs, Ani Duttagupta. Effects of Project Screening Criteria on RCx Energy Savings , Nexant, Inc., NCBC 2007.


This tools and accompanying data are copyright of the Minister of Natural Resources Canada (2009). Duplication in any manner is forbidden without prior written permission, which may be obtained by contacting CanmetENERGY.

Disclaimer & Indemnification

This tool is provided on an "as is" basis. Natural Resources Canada nor does its minister, officers, employees or agents make any representations or warranties, either expressed or implied, arising by law or otherwise, including but not limited to, implied warranties of merchantability or fitness for a particular purpose, or that the use of this tool will not infringe any intellectual property rights of third parties. In no event will Natural Resources Canada nor its minister, officers, employees or agents have any obligations or liability arising from tort, or for loss of revenue or profit, or for indirect, special, incidental or consequential damages as a result of your use of this tool.

This tool is distributed for informational purposes only and does not necessarily reflect the views of the Government of Canada nor constitute an endorsement of any commercial product or person. Neither Canada, nor its ministers, officers, employees and agents make any warranty in respect to this tool nor assume any liability arising out of this tool.

The recipient of this tool shall indemnify and save harmless Natural Resources Canada, and its employees and agents, from and against, and shall be responsible for all claims, demands, losses, costs, including solicitor and client costs, damages, actions suits or proceedings, arising out of, related to, or occasioned by any use of this tool by the recipient. Natural Resources Canada shall have the right to defend any such action or proceeding with counsel of its own selection.

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