Transcript Slide 1
Paul McCown, PE, CxA, LEED AP, CEM
SSRCx, LLC
The 5th Annual Conference on
Total Building Commissioning
2009
Commissioning Changes in LEED 2009
Morning Warm-up
TRUE/FALSE?
According to ASHRAE, energy modeling is
meant to predict the energy use of a building?
False
Morning Warm-up
True/False?
The typical model of operating buildings is
sustainable. Investments (from energy
companies, or otherwise) in this model will be
sustained.
Morning Warm-up
True/False?
Commissioning filled a gap in the design and
construction process by which an operable
building is turned over to an owner.
Morning Warm-up
True/False?
A gap still exists between what a new building
controls system is capable of doing versus
what is utilized.
LEED 2009
When?
What is new and different?
What does it mean to you – Cx Agent?
USGBC’s Mission:
Promote the design and construction of buildings that
are environmentally responsible, profitable, and healthy
places to live, work and learn.
The organization’s activities…
Integrate building industry sectors
Lead market transformation
Educate owners and practitioners
New and Different
New and Different
New and Different
Prerequisites and credits in the LEED 2009
addresses 7 topics:
Sustainable Sites (SS)
Water Efficiency (WE)
Energy and Atmosphere (EA)
Materials and Resources (MR)
Indoor Environmental Quality (IEQ)
Innovation in Design (ID)
Regional Priority (RP)
New and Different
LEED 2009 certifications are awarded
according to the following scale:
Certified 40–49 points
Silver 50–59 points
Gold 60–79 points
Platinum 80 points and above
Out of 100 total points (with 10 “bonus” points
available)
New and Different
Harmonized – “Bookshelf Approach”
Changes to Credit Weightings
Regionalization
LEED Online
Green Building Certification Institute (GBCI)
What does it mean to you?
LEED-NC v2.2 Commissioning
LEED 2009 NC - Commissioning
LEED-EB v2.0 Retro-Commissioning
LEED 2009 EB
LEED-NC: Commissioning
Intent: Verify that the building energy systems
are installed, calibrated and perform
according to the owner’s project requirements
(OPR), basis of design (BOD), and
construction documents.
HVAC&R systems and controls
Lighting and daylighting controls
Domestic hot water systems
Renewable energy systems (wind, solar, etc.)
LEED-NC: Commissioning –
Changes for 2009
2 points for EA Credit 3 – Enhanced
Commissioning instead of 1 point
Innovation point possible for Envelope
Commissioning
LEED-NC: Commissioning –
Changes for 2009
“The same CxA overseeing the enhanced
commissioning tasks must also oversee the
fundamental commissioning tasks.” Table 2,
note 4, pg. 221.
See also “Who Can Be the Commissioning
Authority?” 01/03/06 LEED 2.2
Commissioning Subcommittee, posted under
LEED Reference Documents,
http://www.usgbc.org
LEED-EB: Retro-Cx (old version)
Intent – Verify that fundamental building
systems and assemblies are performing as
intended to meet current needs and
sustainability requirements.
Building Operation Plan – means for execution
LEED-EB: Retro-Cx
Requirements – Verify installation, calibration,
and operation for functionality and efficiency
of the following:
Heating, cooling, and humidity control
Lighting
Safety
Controls
LEED-EB: Retro-Cx
Building Operation Plan components:
Use – occupancy and schedule by space
type
Static system requirements
Functional system requirements
LEED-EB: Retro-Cx
Performance Testing Plan (Cx Plan)
components:
Part A - Inspection
Part B – Functional Verification (data
logging)
LEED-EB: Retro-Cx
Building Envelope
HVAC
Water
Lighting
Controls
LEED 2009 for Existing Buildings:
Operations & Maintenance
LEED-EB for O&M (short life-span)
LEED 2009 for EB: O&M
EA Prerequisite 1: Energy Efficiency Best
Management Practices – Planning,
Documentation, and Opportunity
Assessment
EA Credit 2.1 – Existing Building
Commissioning – Investigation and Analysis
EA Credit 2.2 – Existing Building
Commissioning - Implementation
LEED Green Building
Operations and Maintenance 2009
EA Credit 2.3 – Existing Building
Commissioning – Ongoing Commissioning
EA Prerequisite 1: Energy Efficiency
Best Management Practices
Document sequence of operations
Develop a Building Operations Plan
Occupancy Schedule
Equipment Run-Time Schedule
Design setpoints for HVAC equipment
Design lighting levels throughout the building
Validate that the BOP is met during
performance period
EA Prerequisite 1: Energy Efficiency
Best Management Practices
Develop a systems narrative for mechanical
and electrical systems
Create a narrative of the preventative
maintenance plan with scheduled
maintenance
Conduct an ASHRAE Level I walk-through
assessment
2007 ASHRAE Handbook – HVAC Applications
ASHRAE Procedures of Commercial Building Energy
Audits
EA Credit 2.1 – Existing Building Cx
– Investigation and Analysis
Option 1. Commissioning Process
Develop RCx Plan
Implement RCx Plan
Document breakdown of energy use
List operating problems and potential solutions
Identify capital improvements with cost-benefit
analysis
EA Credit 2.1 – Existing Building Cx
– Investigation and Analysis
Option 2. ASHRAE Level II Energy Audit
Conduct an energy audit
Implement RCx Plan
Document breakdown of energy use
Perform savings and cost analysis of “all
practical measures”
Identify “capital improvements” with costbenefit analysis
EA Credit 2.2 – Existing Building
Commissioning - Implementation
Implement “no- or low-cost” operational
improvements.
Create a capital plan for major upgrades
Provide training
Demonstrate financial costs and benefits of
implemented measures
Update BOP to reflect changes
EA Credit 2.3 – Existing Building
Commissioning – Ongoing Cx
Implement an ongoing Cx program that
addresses:
Planning, testing, corrective action, on-going
measurement
Document ongoing commissioning cycle (24
months or less)
Complete ½ of the scope prior to submission
Update BOP or systems narrative as
necessary
LEED 2009 for EB: O&M Implementation
“Performance Period”:
3 consecutive months minimum – most credits
1 year minimum – EA Prereq 2 and Credit 1
Not more than 24 months – any credit
Terminate within 1 week – all credits
Pay attention to detail
Tie-in with other LEED Credits
All WE Prerequisites and Credits
All EA Prerequisites and Credits
IEQ Prereq 1, Credits 1.x, 2.x
Questions and Answers
Thank You!