1 / 15

Commissioning of New Schools: A State Funded Study of the Costs and Benefits

Commissioning of New Schools: A State Funded Study of the Costs and Benefits. Kristin Heinemeier, Ph.D., P.E. Technical Director Brooks Energy & Sustainability Lab with Balaji Santhanakrishnan, Anita Ledbetter, Michael Martin, Dean Schneider, Jim Shoop, Wes Harvey,

bernard-ross
Download Presentation

Commissioning of New Schools: A State Funded Study of the Costs and Benefits

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. Commissioning of New Schools: A State Funded Study of the Costs and Benefits Kristin Heinemeier, Ph.D., P.E. Technical Director Brooks Energy & Sustainability Lab with Balaji Santhanakrishnan, Anita Ledbetter, Michael Martin, Dean Schneider, Jim Shoop, Wes Harvey, Joseph Martin, Frank Thomas ACEEE Summer Study August 25, 2004

  2. Benefits of Commissioning • Reduce Operating Costs • ENERGY • O&M • Better Building • Thermal comfort • Indoor air quality • Better Process for Providing Building • On time • Within budget

  3. Why study the benefits? • There is an urgent need for solid (non-anecdotal) data on the benefits of commissioning. • to support the business case • to ensure accountability • This is much more difficult than other types of M&V • what “would have happened?” • retrofit measures • new construction measures • commissioning is probabilistic

  4. Metaphors for Commissioning… • Commissioning as an efficiency measure • Commissioning as an insurance policy • Commissioning as an immunization program

  5. Engineer’s depiction of the public health decision-making process • Epidemiological study of the prevalence of the disease, and the costs of the disease in different populations. • Controlled lab tests of possible interventions • Controlled clinical trials to understand the efficacy, side effects and best way to administer. • Provide intervention in a big way. • Multi-center study to evaluate efficacy.

  6. Commissioning Research Needs Engineer’s depiction of the public health decision-making process What is the state of the art of conventional construction processes? What is the prevalence of building deficiencies, by building or system type, and what is their cost? • Epidemiological study of the prevalence of the disease, and the costs of the disease in different populations. • Controlled lab tests of possible interventions • Controlled clinical trials to understand the efficacy, side effects and best way to administer. • Provide intervention in a big way. • Multi-center study to evaluate efficacy. Develop and optimize the Commissioning Process. Detailed and controlled side-by-side study of commissioning in a limited number of buildings to identify nature of the benefits and to develop metrics. Not-So-Controlled Side-by-Side Exploratory Study, to Identify Nature of Benefits and Develop Metrics Conduct commissioning in a large number of buildings. Collect large datasets of performance of commissioned and uncommissioned buildings.

  7. Data Collection Methods • Interviews • School District Staff (engineering, construction, energy management, O&M) • Architect, ME, GC, Subcontractors • Construction Documents • Building Plans and Specs, Change Orders, Requests for Information, Meeting Minutes • Work Order Data • Utility Data, Interval Energy Data • Occupant Surveys and Interviews • Building Walkthru, Observations

  8. Results from the Baseline School: Blattman Elementary • source: www.nisd.net

  9. From an uncommissioned school we expected: Chaos Upon First Occupancy Baseline School • source: www.nisd.net

  10. But it’s a very good school. Baseline School • source: www.nisd.net

  11. Definition of Metrics • Numeric • Easily Collected using Simple Data Collection Methods • Clearly Defined, Unambiguous • Normalized for Different Size Schools (sqft or construction costs) and Other Factors • Capture Benefits from Commissioning

  12. Summary of Metrics

  13. Future Work Needed • How reliable are the metrics? • How much natural variation is there? • What is the best normalization? • What is the appropriate scope (eg, MEP)? • How well do they really capture performance? • How much effort does it take to collect them? Who can collect them? • How much are they affected by judgement required?

  14. Commissioning Research Needs Commissioning Research Needs  What is the state of the art of conventional construction processes? What is the prevalence of building deficiencies, and what is their cost?  Develop and optimize the Commissioning Process.  Detailed and controlled side-by-side study of commissioning in a limited number of buildings to develop metrics and to identify nature of the benefits.  Conduct commissioning in a large number of buildings.  Collect large datasets of performance of commissioned and uncommissioned buildings.

  15. Thank you! Questions? • source: www.nisd.net

More Related