how to have a successful retrocommissioning project karl stum, pe portland energy conservation inc....
TRANSCRIPT
How to Have a Successful Retrocommissioning Project
Karl Stum, PEPortland Energy Conservation Inc. (PECI)
Successful Retrocommissioning
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Successful Retrocommissioning
What We Will Cover--
• Definitions
• Planning phase activities
• Investigation and implementation phases
• Hand-off phase
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Successful Retrocommissioning
Retrocommissioning
• Existing equipment
• Seeks low-cost operational improvements
• Likely won’t get done with a conventional performance contract
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Successful Retrocommissioning
Phases of the Process
• Planning
• Investigation
• Implementation
• Hand-off
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Successful Retrocommissioning
Building Selection
• Enthusiastic facility staff
• Facility staff have time
• Owner has money to put into project
• High energy users?
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Successful Retrocommissioning
Objectives
• System verification (RCx)
• Energy savings
• Problem areas
• What systems? HVAC Lighting Controls Specialty
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Successful Retrocommissioning
System Verification
• Systematic testing of systems
• Like new construction testing
• Report card
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Successful Retrocommissioning
Energy Savings
• Focus on big energy using equipment
• Comfort?
• IAQ?
• Capital improvements?
• Energy-only may not be compatible with std. RCx
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Successful Retrocommissioning
Problems Areas
• Comfort
• System control
• IAQ
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Successful Retrocommissioning
Satisfy All Stakeholders
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Successful Retrocommissioning
Satisfy All Stakeholders
• Owner
• Utility
• Energy manager
• Facility manager
• Facility engineer/operator
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Successful Retrocommissioning
Types of Implementation
By Whom:
• All by owner
• CP oversees
• CP implements
When:
• Along the way
• After full finding report
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Successful Retrocommissioning
Selecting a Provider
• Done it before
• Experienced with your issues TAB Design Equipment Energy Troubleshooting Controls
• References
• Approach
Trust me….
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Successful Retrocommissioning
Scope of Work
• Don’t promise the farm
• Be explicit
• Consider phasing the project--investigation / implementation
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Successful Retrocommissioning
Scope of Work
• All but insist that you do some implementation or follow-up
• Allow enough time for implementation
• Leave documentation for facility staff
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Successful Retrocommissioning
Expectations
• Understand them
• Manage them
• Document
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Successful Retrocommissioning
Budgeting
• Be realistic
• Many projects are scoped to a budget rather thanthe opposite
• Typical 100k - 500k sf, typical energy projects:
$20k-$50k for investigation, and $10k-$30k for implementation of
findings
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Successful Retrocommissioning
Cx Plan
• Clear
• Complete
• Include a schedule
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Successful Retrocommissioning
INVESTIGATION & IMPLEMENTATION PHASE
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Successful Retrocommissioning
Kick-Off Meeting
• Team building
• Communicate objectives
• Communicate process
• Clear up questions
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Successful Retrocommissioning
Staff Issues
• Managers support staff Time Appropriate staff resources Allocate budget to implement
• Commissioner respect staff Don’t take their whole day Don’t make staff look bad
(call a spade a heart? Or is the glass half empty or half full?)
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Successful Retrocommissioning
Communication
• Document all scope directives and changes
• Keep parties informed of progress
• Meet to go over findings
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Successful Retrocommissioning
Communication
• Provide clear findings and recommendations
• Make report accessible--use summary tables
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Successful Retrocommissioning
Remaining on Track
• Remember to please all stakeholders
• Revisit your budget often
• Don’t go too deep in one area
• Leave enough for analysis and implementation
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Successful Retrocommissioning
Implementation
• Consider interactions of recommendations
• Plan for verification, if required
• Identify that all players are satisfied
• Document
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Successful Retrocommissioning
HAND-OFF PHASE
• Provide a clear / accessible report
• Leave staff with guidance in writing
Implementation plan Optimum operating parameters Updated sequences of control Recommissioning plan Energy accounting plan