Download presentation
Presentation is loading. Please wait.
Published byWarren Wells Modified over 9 years ago
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 August 30, 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 measures 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 also have outlets that will always remain on Load Sensor Occupancy Sensor
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.
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 (not included in savings proposal)
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 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 ‘Current Sensing’ Smart Power Strip was installed − Load sensor device
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 $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 16 Measure Checklist
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 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
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 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
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 Motion for Approval Motion to approve UES estimate to active status for smart power strips (load and occupancy sensing) in commercial office applications, with a sunset date of September 2013 (2 years)
Similar presentations
© 2025 SlidePlayer.com. Inc.
All rights reserved.