1. RTUG Jan 2010 PNW RoofTop Unit Working Group - RTUG – Regional RTU Savings Research presentation to PNW Regional Technical Forum January 5, 2010 RTUG Jan 2010

2. Summary: Regional RTU Energy Efficiency Initiatives Initial Results from the Bonneville RTU project Regional RTU Research Results Provisional Deemed Savings Value Framework Regional Results Database Next Steps RTUG Report to RTF

3. RTUG Jan 2010 RTUG Membership Dave Baylon Ecotope Alan Budman Snohomish County PUD Jack Callahan Bonneville Power Administration Jeff Cole RTF & Better Bricks Advisor Bob Davis Ecotope Karen des Portland Energy Conservation, Inc. Laura Feinstein Puget Sound Energy Fred Gordon Energy Trust of Oregon Reid Hart Portland Energy Conservation, Inc. Chris Helmers PacifiCorp Glenn Hensen Portland Energy Conservation, Inc. Kathy Hile Cadmus Group Mark Jerome RTF (Pacific Air Comfort) Mike Kennedy Ecotope Bill Koran Quantum Will Miller Lockheed Martin Mike Little Seattle City Light Tom Lienhard Avista Utilities Mike Lubliner WSU Energy Program

4. RTUG Jan 2010 RTUG Membership Peter Meyer Tacoma Public Utilities David Davis Idaho Power Company Nick O'Neill Energy Trust of Oregon Steve Ottenbreit Snohomish County PUD Janice Peterson NW Energy Efficiency Alliance Jon Powell Avista Utilities Stan Price Northwest Energy Efficiency Council Will Price EWEB Dave Robison Stellar Processes Erin Rowe PECI Joe Schmultzer Puget Sound Energy Mira Vowles Bonneville Power Administration Greta Zink Avista Utilities Brian Van Buskirk Portland Energy Conservation, Inc. John Palmer-Williams Tacoma Public Utilities Out-of-Region representatives from NEEP- NYSERDA/VEIC, CA- BBI/ SCE/WCEC

5. RTUG Jan 2010 PNW RTU Market Size [2006] – 320,000 units 5-ton predominates – 27,000 new units annually 16,000+ replacement 11,000+ in new construction STATE SHARES WA @ 41% OR @ 39% ID @ 12% MT @ 8%

6. RTUG Jan 2010 Savings in MWa 2029 – 6 th Power Plan NewNRRetroTotal Package Roof Top Optimization and Repair 481426 Demand Control Ventilation 431825 Total8113251 TRC Levelized Cost: Mostly $10 to $50 per MWh

7. RTUG Jan 2010 PNW RTU 2008-09 Count 236 Metered Avista = 12 side-by-side metered [4 in place] Bonneville Power Administration RTU Pilots = 161 metered Energy Trust of Oregon = 94 serviced/13 metered Idaho Power = 9 metered Puget Sound Energy = 41 metered

8. RTUG Jan 2010 Related RTU Activities Northwest Energy Efficiency Alliance – HVAC contractor training – Regionwide RTU program support – Emerging Technology program Bonneville Power Administration – HVAC Emerging Technologies – Premium Ventilation Package – R&D California Activities – Western HVAC Performance Alliance – CEC PIER RTU FDD – HVAC EM&V Results

9. RTUG Jan 2010 RTU Reality TV: ETO BAU Site Sample 3 HVAC units with economizers, 1 functional; 2 units did not have 2-stage controls Outside ventilation was disabled on 2 of 3 units None of the businesses had appropriate scheduling of HVAC Noticeable air leaks around roof curbs 9

10. RTUG Jan 2010 2009 RTU Savings Results –What We Know

11. RTUG Jan 2010 2009 RTU Savings Results What We Know - 2 Bonneville ETO Idaho Power PSE

12. RTUG Jan 2010 2009 RTU Savings Results –What We Still Need To Know

13. RTUG Jan 2010 Why? Programmatically simple Supported by research to date Enables Bonneville to gather more data to inform regional program Low risk (< 0.05 aMW) True up based on: Annual metering of 54 RTUs [BPA-Idaho] Summer of 2010 RTU data Continued monitoring for persistence? RTU Service Provisional Deemed Savings Value

14. RTUG Jan 2010 Regional Results Database Results from all programs will be entered Primary structure a directory tree with each program results as a separate directory Each directory: unit raw data template + results summary for each unit + site/unit characteristics & service measures Summary data will include selected site/unit characteristics Potential integration with other regional databases

15. RTUG Jan 2010 Database Summary View Site Summary Site ID RTU ID Weather data Annual kWh pre Annual kWh post Compressor stages Compressor max duty (frac of full load) Economizer (y/n) Monitoring level Pre- and Post- Service Summary Fan kW Fan duty (frac of full load) Baseload kWh/day Balance point temp Slope kWh/day/degF Demand @ 80 deg F, Stage 1&2 kW Compressor trigger degF

16. RTUG Jan 2010 2009 PNW RTU Outcomes Critical Body of Knowledge being assembled Measurement & analysis continuing Results database being established for additional analysis Provisional Deemed Savings Potential

17. RTUG Jan 2010 RTUG Next Steps - 2010 Field Protocol/Provisional Savings meeting > January 19 Recommendations to RTF > February 2 Bonneville Pilot Development > February-May Establish results database; final design review by RTUG, RTF, others > January-March Continue to review Bonneville and other in-region and out-of-region sources of data analysis/results > Ongoing Identify additional analyses > January-September 12-month data analysis > June-September