Timothy Peglow- Gulf Coast Green 2010


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MD Anderson Energy Initiatives, reduced annual energy costs by $1 million in 2009

Author: Timothy Peglow, MD Anderson Cancer Center, Patient Care and Prevention Facililties

Published in: Design
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Timothy Peglow- Gulf Coast Green 2010

  1. 1. Patient Care & Prevention Facilities Electricity ● Chilled Water ● Steam 2009
  2. 2. Implementation <ul><li>Used initiative to focus morale and efforts during February 2009 when P&L and other economic indicators were unfavorable. Facilities could put forth extra effort to improve financial performance. We pledged a $1Million reduction in annual energy costs. </li></ul>Electricity ● Chilled Water ● Steam 2009
  3. 3. Team Dynamics <ul><li>Used Production Agreements </li></ul><ul><li>Manage team performance by managing Glomixes </li></ul><ul><li>Munchized efforts to make progress every week. </li></ul><ul><li>Created measurement to validate success </li></ul><ul><li>Team included: </li></ul><ul><ul><li>AVP (Facilitator) </li></ul></ul><ul><ul><li>Directors </li></ul></ul><ul><ul><li>Engineers </li></ul></ul><ul><ul><li>Supervisors </li></ul></ul><ul><ul><li>Technicians </li></ul></ul><ul><li>All personnel had equal say. O&M could veto actions until they gained comfort with outcomes and risks. </li></ul>Electricity ● Chilled Water ● Steam 2009
  4. 4. Implemented Changes using Plan Do Check Act <ul><li>Brainstormed lists and used criteria to establish implementation order. </li></ul><ul><li>Planned all implementations. Looked at both positives and negatives so contingency plans could be part of the implementation. </li></ul><ul><li>Retested and modified as necessary to achieve desired outcomes. </li></ul><ul><li>Created measurements for all changes. </li></ul><ul><li>Checked all results to meet expectations including any tenant feedback. </li></ul><ul><li>Established low risk areas for all tests. Consistently used that area for all new efforts. </li></ul><ul><li>Typically, there were three ideas in process at any time. </li></ul><ul><li>Did a lot of myth busting on many aspects of improvement. These included turning off reheat in the cold duct of the dual duct air handlers. </li></ul>Electricity ● Chilled Water ● Steam 2009
  5. 5. Key Issues for Team Success <ul><li>How you deal with failures will go a long way on how successful you will be </li></ul><ul><li>Gain buy-in of everyone </li></ul><ul><li>Passion of team members is critical use it to the team’s advantage </li></ul><ul><li>Keep efforts focused and keep on message </li></ul><ul><li>Make things happen </li></ul><ul><li>HAVE FUN! </li></ul>Electricity ● Chilled Water ● Steam 2009
  6. 6. Tactics <ul><li>Schedule, Schedule, Schedule </li></ul><ul><li>Reset, Reset, Reset </li></ul><ul><li>Minimize simultaneous heating and cooling </li></ul><ul><li>Train, Train </li></ul><ul><li>Continuously reinforce and celebrate success. </li></ul><ul><li>Validate and Trend </li></ul>Electricity ● Chilled Water ● Steam 2009
  7. 7. Building Facts <ul><li>880,000 s.f. </li></ul><ul><li>Steam and Chilled water provided by district heating and cooling cooperative </li></ul><ul><li>Dual duct air handlers </li></ul><ul><li>Outpatient Clinics and O.R.’s </li></ul><ul><li>Robust BAS system with in-house programming capabilities </li></ul>Electricity ● Chilled Water ● Steam 2009
  8. 8. Guidance <ul><li>ASHRAE 90.1 </li></ul><ul><li>ASHRAE 62.1 </li></ul><ul><li>ASHRAE 170 </li></ul><ul><li>The ASHRAE Guide for Buildings in Hot and Humid Climates </li></ul>Electricity ● Chilled Water ● Steam 2009
  9. 9. Time of Day and Calendar Schedule <ul><li>Outside Air Setback at Night </li></ul><ul><li>Temperature and/or flow setback of non critical areas </li></ul><ul><li>Lighting Schedules </li></ul><ul><ul><li>Inside </li></ul></ul><ul><ul><li>Outside </li></ul></ul>Electricity ● Chilled Water ● Steam 2009
  10. 10. Tenant Occupancy Schedules Electricity ● Chilled Water ● Steam 2009
  11. 11. HVAC Equipment Coverage Electricity ● Chilled Water ● Steam 2009
  12. 12. Map Important Spaces <ul><li>Temperature Sensitive </li></ul><ul><li>Pressure Sensitive (ASHRAE 170) </li></ul><ul><li>Required air changes (ASHRAE 170) </li></ul><ul><li>Revisited the list throughout the process to make sure we had the right spaces. </li></ul>Electricity ● Chilled Water ● Steam 2009
  13. 13. Space Maps Electricity ● Chilled Water ● Steam 2009
  14. 14. Reset <ul><li>Hot water temperature based upon O.A. Temperature </li></ul><ul><li>During first phase adjusted hot and cold deck temperatures based upon time of day and O. A. temps </li></ul><ul><li>Adjusted speed drives on O.A. Units based upon downstream damper positions </li></ul><ul><li>Adjusted speed drives on chilled water pumps based upon valve positions </li></ul>Electricity ● Chilled Water ● Steam 2009
  15. 15. System Optimization <ul><li>Linked Outdoor Air Pre-treat fan speed to the needs of the air handlers served. </li></ul>Electricity ● Chilled Water ● Steam 2009
  16. 16. System Optimization Electricity ● Chilled Water ● Steam Patient Care & Prevention Facilities 2009
  17. 17. Train the Staff <ul><li>Key to long term success of savings </li></ul><ul><li>Consistent Training of staff to help educate them on fundamentals of system operation </li></ul><ul><li>Troubleshooting guides for common problems </li></ul><ul><li>“ Break your finger points” Critical points that required supervisor approval to adjust </li></ul><ul><li>More aggressive and sophisticated BAS Alarming to identify problems </li></ul><ul><li>Align PM’s to save energy </li></ul><ul><li>Implemented more aggressive alarms that direct page staff. </li></ul>Electricity ● Chilled Water ● Steam 2009
  18. 18. Validate and Trend <ul><li>Developed 7 day trends on virtually all key systems to monitor performance </li></ul><ul><li>Most trends were 15 minute intervals or change in value </li></ul><ul><li>Developed Environmental Index to monitor space performance </li></ul>Electricity ● Chilled Water ● Steam 2009
  19. 19. Chilled Water Use Electricity ● Chilled Water ● Steam 2009
  20. 20. Steam Use Electricity ● Chilled Water ● Steam 2009
  21. 21. Electricity Use Electricity ● Chilled Water ● Steam 2009
  22. 22. Dollar Savings Electricity ● Chilled Water ● Steam 2009
  23. 23. Thanks Electricity ● Chilled Water ● Steam Patient Care & Prevention Facilities 2009