Hospitality-EBOM-v4 EAc2: Existing building commissioning - implementation

  • Implement the results of your energy analysis

    Now that you’ve identified energy efficiency measures in the ASHRAE Level II audit or retro-commissioningThe process of verifying and documenting that a building and all of its systems and assemblies are planned, designed, installed, tested, operated, and maintained to meet the owner's project requirements. analysis from EAc1, it’s time to cash in with the implementation credit.

    The credit is really a no-brainer if your project is pursuing EAc1, as the cost outlay is typically small and the long-term returns on those expenditures tend to be very strong.

    To earn the credit you first need to establish criteria for determining “low-cost” measures. The cost threshold for “low-cost” is set at your team’s discretion. Then you’ll need to ensure that all low-cost and no-cost measures can be completed prior to the end of the performance period.

    And finally, make plans to ensure that the benefits of the implemented efficiency measures are fully realized by providing training for the building operations staff and by developing a tracking and verification program. The tracking program in particular should verify the effectiveness of key changes and/or installations, document the actual cost savings observed, and document the human benefits of the implemented measures.

    What’s New in LEED v4

    • The capital plan required for major retrofits and upgrades is now specified as a five-year plan.
    • A formal tracking and verification plan is now required for the implemented energy conservation measures.

    Readiness Review Questions

    • Are you prepared to quickly implement no-cost and low-cost operational improvements identified in the commissioning or auditing process conducted as a part of EAc1? 

    • When was the building last commissioned or audited? Have any major systems been upgraded or altered since that process was completed? 

    • What level of training do building operators currently receive? Does the training currently address any of the suggested topics in the LEED Reference Guide? These are:
      • Energy usage analysis
      • Operating schedules and requirements
      • Methods for identifying problems and deficiencies
      • Description of project findings and measures that were implemented
      • Improvements expected as a result of the commissioning or energy audit
      • Operations and maintenance procedures needed to ensure that benefits are maintained
      • Staff role in helping maintain savings


    What constitutes a “low-cost” measure?

    There is no prescriptive guidance for establishing the threshold for a low-cost measure. It’s up to your team to decide based on the available budgets and constraints of the building operations. 

    What does the training for building personnel need to cover?

    The LEED Reference Guide outlines suggested topics for this training but it should generally cover how to operate and maintain new equipment, controls, and systems appropriately.

  • EA Credit 2: Existing building commissioning—implementation


    To use the existing building commissioningThe process of verifying and documenting that a building and all of its systems and assemblies are planned, designed, installed, tested, operated, and maintained to meet the owner's project requirements. process to improve building operations, energy, and resource efficiency.



    Meet the requirements of EA Credit Existing Building Commissioning—Analysis.


    Apply the requirements below to all direct energy-consuming or energy-producing systems, including lighting, process loads, HVAC&R, domestic water heating, and renewable energy.

    Implement no- or low-cost operational improvements and develop a five-year plan for equipment replacement and major modifications or upgrades based on the analysis phase.

    Confirm training of building operations staff so that they can efficiently operate all new or substantially altered building equipment or systems.

    Develop a formal tracking and verification program for all projects implemented as part of the existing building commissioning process. Include verification of effectiveness, documentation of the observed financial costs and benefits, and observed or estimated environmental and human health and comfort benefits.

    Update the operations and maintenance plan and the current facilities requirementsThe implementation of the owner's project requirements, developed to confirm the owner's current operational needs and requirements. to incorporate the newly implemented improvements.

Operations Staff Training Program

This sample demonstrates how to document this credit. This document is a GBCIThe Green Building Certification Institute (GBCI) manages Leadership in Energy and Environmental Design (LEED) building certification and professional accreditation processes. It was established in 2008 with support from the U.S. Green Building Council (USGBC).-approved sample used within Transwestern’s v4 O+M:EB Volume program.


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Aug 22 2017
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