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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 Advanced Power Strips (APS) Planning UES Measure Proposal Measure Proposal Presentation to the Regional Technical Forum August 20, 2013 Bonneville Power and SBW
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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 Presentation Outline Measure Overview UES Analysis and Results Research Plan RTF Staff Review and Guidance Proposed Decision 2
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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 Measure Overview Review the Measure Properties section on the “Summary” tab of the proposed measure workbook.proposed measure workbook 3 Measure DevelopersBonneville Power Administration and SBW Technical Subcommittee Review No Research & Evaluation Core Group Review Yes; feedback received from research and evaluation group is included in final research plan. NotesA provisional measure for residential “smart power strips” expired in April, 2011.
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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 Types of APS not selected Not so advanced or no automatic savings Timer-based, e.g., off from 11pm – 7 am Remote switch, such as wall, desk, or IR off-switch Informational – displays usage Other sensing – unreliable or low potential USB sensing, detects when PC shut off DC audio sensing, detects when audio off Next generation PC idle sensing 4
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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 Measures for Approval Load Sensing Motion Sensing IR Sensing OfficeEntertainmentOfficeEntertainmentUnknown Owner installed Direct installed 5
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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 UES – Tier 1 Master/peripheral load sensing Applications are assumed to be home entertainment or home office Weighted average UES for owner-installed 61% home entertainment 39% home office 6
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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 “Typical” home office and home entertainment devices Analyst assumptions, with saturation data from various sources Power draw in Standby, Ready, and Active states is Estimated for each device from various sources Estimated hours of use for each device in each power- draw state are based on in-home metering studies and phone survey reports Savings occur in master device off-hours − State of peripheral during master off-hours is based on analyst assumptions UES – Tier 1 Master/peripheral (cont)
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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 UES – Tier 1 Master/peripheral Key Assumptions 8 DeviceSaturation Reduction in Ready mode (intermediate power range) hours Television DVD Player90%50% VCR75%25% Video game console35%50% Speakers25%0% Computer Monitor100%0% Printer100%50% Speakers50%0%
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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 UES – Tier 1 Master/peripheral MeasureMeasure Life Site Savings (kWh) Capital Cost ($/unit) TRC B/C Ratio Load sensing advanced power strip Owner Installed 1035.2 $320.9 Load sensing advanced power strip Direct Installed for home entertainment 1043.3 $351.1 Load sensing advanced power strip Direct Installed for home office 1022.5 $350.6 9 EUL: Advanced Power Strip Research Final Report for NYSERDA (2011) by Lockheed Martin, Inc., and Energy Solutions.
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B O N N E V I L L E P O W E R A D M I N I S T R A T I O N 10 Planning UES Average of field trials of Embertec IR-sensing APS 19 households in Australia – population skewed towards high income/high electronics ownership Average savings: 760 kWh/yr. “Normalized” by government agencies to 436 kWh/yr. 15 households in South Africa – similar device ownership to other developed countries Average savings: 420 kWh/yr. 19 households in Santa Cruz, CA – recruited from rowing club Average savings: 258 kWh/yr. UES – Tier 2 IR Sensing
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B O N N E V I L L E P O W E R A D M I N I S T R A T I O N UES – Tier 2 IR Sensing MeasureMeasure Life Site Savings (kWh) Capital Cost ($/unit) TRC B/C Ratio Infrared sensing advanced power strip Owner Installed 10321.2 $1002.8 Infrared sensing advanced power strip Direct Installed 10321.2 $604.7 11
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B O N N E V I L L E P O W E R A D M I N I S T R A T I O N UES – Tier 2 Motion Sensing Products are marketed for computer environments After set period like 30 minutes, power to controlled devices is shut off Greatest savings occur in monitor 12
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B O N N E V I L L E P O W E R A D M I N I S T R A T I O N UES – Tier 2 Motion Sensing Key Assumptions DeviceSaturation Reduction in Active or Active Standby hours Computer Monitor100%50% Printer100%50% Speakers50% 13
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B O N N E V I L L E P O W E R A D M I N I S T R A T I O N UES – Tier 2 Motion Sensing MeasureMeasure Life Site Savings (kWh) Capital Cost ($/unit) TRC B/C Ratio Occupancy sensing advanced power strip Owner Installed 10.067.4$32.501.8 Occupancy sensing advanced power strip Direct Installed 10.067.4$35.001.7 14
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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 Measure Research Plan Review of the proposed research plan:proposed research plan Sample Design Collaboration Strategy Analysis and Data Collection Plan 15
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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 RTF Staff Review and Guidance RTF staff recommendation on the UES estimate: Overall, savings methodology fine for planning UES measure. 10-year lifetime may be unreasonable given that measure can be easily moved and removed; equipment changes over time − 2-3 years may be more reasonable UES estimate currently assumes no removal rate (e.g., due to dissatisfaction); staff suggests adding a non-zero rate of removal Tier 2 IR savings estimate (321 kWh) could be over-stated given that the APS’s in the study recorded when device would have been shut off. − This misses instances when the TV would have been turned back on; however, it would be difficult to estimate this effect. 16
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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 RTF Staff Review and Guidance RTF staff recommendation on research plan: The pre/post methodology is reasonable, given that a control group scenario would be practically difficult to implement. Cautions on sample size: − Current sample size of 185 to sample proposed scenarios (on slide 7). − Invalid sites (see Section 4.2 of Research Plan) could require greater than 185 total metered installations. − Current CV estimate (0.96) based on direct-install studies may be understated for self-installs; therefore greater than 185 sites may be needed to ensure 80/20 confidence and precision. 17
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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 Decision “I _________ move that the RTF approve the UES measure Residential Advanced Power Strips to the Planning category with Active status and a sunset date of August 31, 2015.” 18
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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 Additional Slides 19
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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 Potential Problems with APS’s Load (current) sensing Testing has shown problems in detecting both off and on events − Missed off event may not be noticed by user Master devices can have many modes − Charging; hibernating; TV playing music, not video Power strips have threshold adjustment − High/med/low, dial, or automatic − Manual adjustment may be difficult for untrained people to get right 20
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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 Potential Problems with APS’s ETO survey found access problems in 45% of home entertainment settings Incorrect installation Device which should be always on may be plugged into “controlled” slot − Computer − DVR Abrupt disconnect may be harmful Some laser printers Video game may not save state, scores 21
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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 Measure Specification Load (current) sensing Master/peripheral APS detects when the master device has been turned off (enters sleep mode), and disconnects all power to peripherals Motion-sensing APS disconnects power to controlled devices after set period with no motion IR-sensing APS disconnects power to all devices after set period with no IR signal Also incorporates load-sensing 22
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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 Must include installation guide and company/manufacturer contact information Master/peripheral power strips must have at least 3 controlled outlets Surge protection at least 740 joules Tested to UL Standard 1449-NTL Rated for 120 V and 15 amps UL 1363 listed Measure Specification (cont)
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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 Measure Specification (cont) Connected product warranty Resettable circuit breaker Consumes less than 1 watt of stand-alone power At least a one year warranty Adjustable switching threshold on load- sensing power strips (dial, switch, or automatic) 24
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