1. B O N N E V I L L E P O W E R A D M I N I S T R A T I O N Smart Power Strips in Commercial Office Applications RTF October 4, 2011

2. B O N N E V I L L E P O W E R A D M I N I S T R A T I O N 2 Goal Today  To update UES estimates and move provisionally deemed smart strip measure to active status for commercial office applications Using updated savings from BPA engineering research

3. B O N N E V I L L E P O W E R A D M I N I S T R A T I O N 3 Background  RTF Provisionally deemed smart power strips in a commercial office in March 2010 100 kWh $20/unit 4 year Measure Life  RTF approved Research Plan 50 unit sample 2 week pre/post metering Collect information on equipment plugged in and settings

4. B O N N E V I L L E P O W E R A D M I N I S T R A T I O N 4 Smart Power Strips  Resemble traditional power strips, but have outlets with different functionalities.  Control outlet and controlled outlets Some outlets always remain on Others controlled by load sensed  Load Sensor Type of smart strip being proposed today  Occupancy Sensor Currently researching this measure

5. B O N N E V I L L E P O W E R A D M I N I S T R A T I O N 5 Smart Power Strips  Load Sensor When a control device is turned off or enters sleep mode, the Smart Power Strip cuts power to the controlled peripherals: items such as printers, heaters, speakers.  Occupancy Sensor The occupancy sensor cuts power to the controlled peripherals: items such as printers, heaters, speakers.  Timer Timer controls when power is shut off to controlled peripherals

6. B O N N E V I L L E P O W E R A D M I N I S T R A T I O N 6 Types of Smart Power Strips Occupancy Sensor Load Sensor Timer Plug Strip

7. B O N N E V I L L E P O W E R A D M I N I S T R A T I O N 7 BPA Metering Study  Details about the research activities Load Sensor device was installed − ‘Current Sensing’ Smart Power Strip A total of 48 smart strips installed Installed at Ross Complex, Vancouver, WA Approximately 3 weeks baseline and post metering time during April/May 2011 Kill-A-Watt Meters used for data collection

8. B O N N E V I L L E P O W E R A D M I N I S T R A T I O N 8 Example of Results

9. B O N N E V I L L E P O W E R A D M I N I S T R A T I O N 9 Results Summary  Savings details Sample size = 45 cubicles/offices Average Savings per year per cubicle = 132 KWh − Includes removal of 4 units during research period Median value = 80 KWh 80% Confidence Interval = 36.34

10. B O N N E V I L L E P O W E R A D M I N I S T R A T I O N 10 Results – Frequency Distribution Printer 1057 kwh savings

11. B O N N E V I L L E P O W E R A D M I N I S T R A T I O N 11 Results – # of Devices Plugged In * Number of devices plugged in is in addition to computer and monitor

12. B O N N E V I L L E P O W E R A D M I N I S T R A T I O N 12 Measure Cost and Measure Life  Cost – Load Sensor Device $24.99 per unit, Non-Volume, Retail Labor cost - $3.50 (10 Minutes per unit at $20/hour for installation)  Measure Life 4 years

13. B O N N E V I L L E P O W E R A D M I N I S T R A T I O N 13 Cost Effectiveness

14. B O N N E V I L L E P O W E R A D M I N I S T R A T I O N 14 Measure Workbook Results

15. B O N N E V I L L E P O W E R A D M I N I S T R A T I O N 15 Measure Workbook Results

16. B O N N E V I L L E P O W E R A D M I N I S T R A T I O N More Baseline Data Considered  Idaho Design Lab Monitored 4 Office Spaces in Boise - 205 cubicles total  Metering included common area plug loads(non-cubicle)  Attempted to remove these loads using CEC PEIR study by ECOS - Result: 34 to 40 Watts/cube  Inherent error introduced trying to clean data 16

17. B O N N E V I L L E P O W E R A D M I N I S T R A T I O N 17 Measure Checklist

18. B O N N E V I L L E P O W E R A D M I N I S T R A T I O N 18 Measure Requirements  Must be installed in commercial offices occupied a minimum of 50 hour per week  Must be at least 1 device plugged into strip, in addition to desktop/laptop/monitor Okay to use with Network PC management as long as more than desktop/monitor plugged in

19. B O N N E V I L L E P O W E R A D M I N I S T R A T I O N 19 Continued Research  Follow up with metered units periodically to check if still installed  BPA to conduct metering on additional 24 work spaces with same metering process Study using occupancy sensor devices  IDL also researching occupancy sensor devices

20. B O N N E V I L L E P O W E R A D M I N I S T R A T I O N 20 Motion for Approval  Motion to approve UES estimate to active status for smart power strips with a load sensing device in commercial office applications, with a sunset date of September 2013 (2 years)

21. B O N N E V I L L E P O W E R A D M I N I S T R A T I O N 21 Extra Slides Other baseline data

22. B O N N E V I L L E P O W E R A D M I N I S T R A T I O N 22 Idaho Integrated Design Lab Another Baseline Considered: IDL Monitored four sites in Boise Office occupancy 8 am – 5 pm Monday - Friday 34,182 Square feet (1,500 to 17,088 range ) Metered whole floor plug loads 737 total plug loads (84 in commons areas) 205 cubicles (5.3 average plug loads each)

23. B O N N E V I L L E P O W E R A D M I N I S T R A T I O N 23 Idaho Integrated Design Lab Metered data shown in average hourly kW 45.76 calculated watts per cubicle − Watts per cubicle weighted average 24/7 − Commons area plug loads included Using CEC data to subtract commons equipment 40.06 average watts per cube high estimate 34.38 average watts per cube low

24. B O N N E V I L L E P O W E R A D M I N I S T R A T I O N 24 Idaho Data Adjusted with CEC Data CEC PIER Study by ECOS Metered select office equipment for 2 weeks 25 offices in Sonoma and San Diego 8 - 5 Monday – Friday Office Occupancy − Legal, accounting, tax, engineering, architectural, computer design Metered (Watts Up Pro ES) − 451 discrete pieces of equipment − 50 separate types of equipment

25. B O N N E V I L L E P O W E R A D M I N I S T R A T I O N 25 Idaho Data Adjusted with CEC Data CEC PIER Study by ECOS Meter logged power, current, voltage, and power factor - real ‐ time time stamps per minute Determined equipment states and percent time − Active, Idle, Sleep, Standby, Disconnected Calculated annual kWh per mode Calculated average watt load per mode

26. B O N N E V I L L E P O W E R A D M I N I S T R A T I O N CEC Data Questions  Annual kWh sum by totaling Ave. kWh/mode  Sum of Ave. Watt/mode x % time not equal  Some equip annual kWh/ 8,760 exceeds average watts per cubicle  No count of Idaho laser and inkjet to attribute Watts according to CEC PIER data 26