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The 5 th Annual Conference on Total Building Commissioning 2009

Paul McCown, PE, CxA, LEED AP, CEM SSRCx, LLC. The 5 th 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.

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The 5 th Annual Conference on Total Building Commissioning 2009

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  1. Paul McCown, PE, CxA, LEED AP, CEM SSRCx, LLC The 5th Annual Conference onTotal Building Commissioning2009 Commissioning Changes in LEED 2009

  2. Morning Warm-up TRUE/FALSE? • According to ASHRAE, energy modeling is meant to predict the energy use of a building? • False

  3. 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.

  4. 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.

  5. Morning Warm-up True/False? • A gap still exists between what a new building controls system is capable of doing versus what is utilized.

  6. LEED 2009 • When? • What is new and different? • What does it mean to you – Cx Agent?

  7. 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

  8. New and Different

  9. New and Different

  10. 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)

  11. 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)

  12. New and Different • Harmonized – “Bookshelf Approach” • Changes to Credit Weightings • Regionalization • LEED Online • Green Building Certification Institute (GBCI)

  13. What does it mean to you? • LEED-NC v2.2 Commissioning • LEED 2009 NC - Commissioning • LEED-EB v2.0 Retro-Commissioning • LEED 2009 EB

  14. 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.)

  15. LEED-NC: Commissioning – Changes for 2009 • 2 points for EA Credit 3 – Enhanced Commissioning instead of 1 point • Innovation point possible for Envelope Commissioning

  16. 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

  17. 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

  18. 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

  19. LEED-EB: Retro-Cx Building Operation Plan components: • Use – occupancy and schedule by space type • Static system requirements • Functional system requirements

  20. LEED-EB: Retro-Cx Performance Testing Plan (Cx Plan) components: • Part A - Inspection • Part B – Functional Verification (data logging)

  21. LEED-EB: Retro-Cx • Building Envelope • HVAC • Water • Lighting • Controls

  22. 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

  23. LEED Green Building Operations and Maintenance 2009 • EA Credit 2.3 – Existing Building Commissioning – Ongoing Commissioning

  24. 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

  25. 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

  26. 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

  27. 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 cost-benefit analysis

  28. 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

  29. 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

  30. 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

  31. Questions and Answers Thank You!

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