SUSTAINABLE BUILDINGS
Asset Classes
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Offices
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Enclosed Shopping Centres
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Open Air Retail
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Light Industrial
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Multi-Unit Residential Buildings
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Health Care Facilities
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Universal
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Focus Area
Energy and Carbon
Topic
O&M Optimization
Question #
E6.1 — Existing Building Commissioning Investigation
Question
Has an Existing Building Commissioning, Recommissioning or Retro-Commissioning Investigation or Operational Optimization Study been completed in the last five years?
Applicability
All asset classes
Owner/landlord occupied building
Tenant occupied building – all systems managed by the owner/landlord
Answer & Scoring
- Yes = 3 points
- No = 0 points
- Not Applicable – Tenant occupied building: Some or no systems managed by the owner/landlord = 0/0
Max of 3 points
Requirements
The Existing Building Commissioning Investigation or Optimization Study must include:
- Documentation, detailed site review and interviews with building O&M staff
- A review of the building automation system
- Preparing for and conducting system functional testing
- Sources of performance problems
- Energy conservation and/or carbon reduction measures with costing, simple payback and anticipated savings
- A demonstration that the investigation methodology applied aligns with the Building Commissioning Association (BCA)’s Existing Building Commissioning Best Practices in Chapter 3 — Investigation Phase at a minimum.
Documentation
- Existing Building Commissioning Investigation or Operational Optimization Study
OR
- Documentation demonstrating that no systems are under the building owner/landlord’s control (e.g. lease agreement)
Suggested Lead
Third-party
Value
- Existing building commissioning involves engaging a qualified professional to test and verify existing building systems
- The existing building commissioning process will include correcting potential operational inefficiencies by adjusting the operations of systems and equipment to optimize performance. This can lead to cost savings, energy savings, and a reduction of carbon emissions
Description
Existing building commissioning (EBCx) is an intensive process that tests, verifies and adjusts the operation of systems and equipment to optimize performance. This can be accomplished through periodic commissioning or operational optimization assessment and implementation by qualified professionals or on a continuous basis through automated fault detection and diagnostics (FDD). Commissioning will result in cost savings, energy reduction and carbon reduction.
References
BCA Existing Building Commissioning Best Practices
ASHRAE Guideline 0.2-2015 – Commissioning Process For Existing Systems And Assemblies
Building Operation Optimization: Recommissioning Guide for Building Owners and Managers
ENERGY STAR Building Upgrade Manual Chapter 5: Retro-commissioning
Medical Gas Piping Systems
Adapted BB 3.0 Question
Question 01.03.06 — Are the equipment and energy systems regularly re- or retro-commissioned?