1. Opportunities for Building Excellence Dr. Dean Schneider Dr. John Estes Brooks Energy & Sustainability Lab

2. The Brooks Energy & Sustainability Lab Consortium of the Texas Engineering Experiment Station (Texas A&M University) and the Georgia Tech Research Institute We promote state-of-the-art technology in Energy Management and Sustainability

3. The Brooks Energy & Sustainability Lab Mission: Technology Transfer to enhance –Cost Effectiveness –Life-cycle Performance –Livability of facilities and infrastructures GOAL: High Performance Buildings

4. The High Performance Building Cost-Effective –Energy Efficient –Energy Requirements Minimized –Highly Maintainable –Sustainable Healthy & Productive –Ergonomically appropriate –Healthy, Safe, and Secure to Live in (Indoor Environmental Quality)

5. Energy Efficiency Energy Reduction Technologies –Energy Auditing –Building Commissioning –Continuous Commissioning ® –Measurement and Verification –Distributed Energy –Renewable Energy

6. U.S. Rates by State

7. Components of Energy Costs Peak Demand Energy Charge (usage) Power factor adjustment Generation charge (fuel cost) Source surcharge (e.g. CPS Windtricity Program) Identify sensitivity of your costs to the above components

8. Energy Auditing Initial Audit a free service of CPS –Identifies “easy opportunities” –HVAC efficiency issues –Lighting retrofit possibilities –Demand scheduling Rate negotiations dependent on demand

9. What is Commissioning? A quality assurance process for building construction A way to coordinate the quality assurance processes of the architect, engineer, and contractors A systematic process for ensuring that the design intent is met throughout design, construction and operation A dedicated individual (the Commissioning Authority) who serves as the owner’s “Champion for Quality”

10. Benefits of Commissioning More comfortable and healthy buildings Reduced startup and life-cycle costs –Higher costs in Design and Engineering –Lower costs in Construction –Lower costs in Occupancy Less headaches during construction –Reduced callbacks, replanning, redesign Design intent is met – happier owners and occupants

11. Existing Building Commissioning Similar to new building commissioning except optimization is to current use (vs. design intent) Ensures building MEP systems fully operational Trains building operators for effective maintenance program TAMU Continuous Commissioning® technique documents near-term savings of 20%

12. Demand Reduction Techniques Distributed generation solutions –BCHP (co-generation) can be cost effective –Investment grade energy audit necessary for economic validation Renewable energy solutions –Solar power generation (reduces grid load) –Solar hot water – can provide cooling –Wind generation (San Antonio?)

13. Sustainability The ability to sustain current operations without negative impact to the future –Most advantages reaped with new building design –Minimizes impact of current operations on future –Can provide life cycle savings –A holistic approach

14. Elements of Sustainability Energy & Atmosphere –Daylighting –Vegetative shading –HVAC Controls –High Energy Efficiency Systems Sustainable sites –High albedo roofs –Alternative pavements –Native landscaping –Alternative fuel vehicles

15. Elements of Sustainability Water efficiency –High efficiency fixtures –High efficiency irrigation Materials & Resources –C&D Waste Recycling –Recycled Content Materials –Recovered Materials –Plastic Lumber Indoor Environmental Quality –CO² Monitors/Controls –Paints –Daylighting

16. Sustainability for Existing Structures Can utilize sustainability concepts during O&M –Low VOC paints –Recycled carpet –Corporate recycling programs –Energy retrofits (daylighting, etc.)

17. Indoor Environmental Quality Necessary for healthy habitation within buildings Can be legal liability Correctly operating HVAC system is a prerequisite Extremely dependent on state of building maintenance

18. Importance of Operation & Maintenance

19. Humidity Variation with and without Humidity Control

20. Important IAQ Findings Higher space humidities in the conventional schools was compensated by lowering the space temperature – an average of 2 º F during the cooling season (conventional schools averaged 74 º F while the desiccant school averaged 76 º F) –Modeling indicated that operating at 76 º F versus 74 º F would result in a 23% reduction in cooling season energy consumption for a typical school in the metro Atlanta area delivering 15 cfm/person outdoor air using a desiccant- cooling system Energy modeling using desiccant-cooling indicated that an average school could reduce its annual energy costs by ~$15,000 for every 1000 students, which is in addition to the savings by raising the temperature set point 2 º F

21. Humidity Control and Ventilation Systems Implementation of active humidity control & continuous ventilation systems improved IAQ in four of the measured parameters. Air exchange rates increased by 59% CO2 levels decreased by 35% Total aldehyde & ketone levels decreased by 24% Total VOC levels decreased by 58%

22. Cradle to Grave Approach Train your staff Building assessments Sampling Lab analysis & interpretation Design of new equipment Monitor performance of equipment IAQ Commissioning Develop IAQ management plans

23. Energy Efficiency Funding Options CPS rebates limited to Natural Gas conversion (converting electrical grid load to NG driven devices (not economically viable with today’s NG cost) Performance contracting Pay as you go retrofits Economic justification may include avoided cost of litigation

24. BESL Capabilities Energy Auditing Commissioning (Building and IAQ) Measurement and Verification Distributed Energy Resources Renewable Energy Analysis Sustainability LEED Certification Indoor Environmental Quality

25. BESL Contacts Located at Brooks City Base, San Antonio, TX PO Box 35399 San Antonio, TX 78235-5399 phone 210/534-7227 fax 210/534-7238 Dean Schneider, BESL Manager Ext. 228 d-schneider@tamu.edud-schneider@tamu.edu John Estes, GTRI Site Manager Ext. 240 john.estes@gtri.gatech.edujohn.estes@gtri.gatech.edu Kristin Heinemeier Ext. 223kristin-h@tamu.edukristin-h@tamu.edu Balaji Santhanakrishnan Ext. 245balajisk@tamu.edubalajisk@tamu.edu Mike Martin Ext. 222mhmartin@tamu.edumhmartin@tamu.edu Anita Ledbetter Ext. 244a-ledbetter@tamu.edua-ledbetter@tamu.edu Don Landry Ext. 243don.landry@gtri.gatech.edudon.landry@gtri.gatech.edu Alison Young Ext. 233 alison.young@gtri.gatech.edualison.young@gtri.gatech.edu