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

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


Presentation Outline

Measure Overview UES Analysis and Results Research Plan RTF Staff Review and Guidance Proposed Decision

2


Measure Overview

Review the Measure Properties section on the “Summary” tab of the proposed measure workbook.

3

Measure Developers Bonneville 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.

Notes A provisional measure for residential “smart power strips” expired in April, 2011.


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


Measures for Approval

Load SensingMotion

SensingIR Sensing

Office Entertainment Office Entertainment Unknown

Owner installed

Direct installed

5


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


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)


UES – Tier 1 Master/peripheral Key Assumptions

8

Device SaturationReduction in Ready mode (intermediate power range) hours

Television

DVD Player 90% 50%

VCR 75% 25%

Video game console 35% 50%

Speakers 25% 0%

Computer

Monitor 100% 0%

Printer 100% 50%

Speakers 50% 0%


UES – Tier 1 Master/peripheral

Measure Measure LifeSite Savings

(kWh)Capital Cost

($/unit)TRC B/C

Ratio

Load sensing advanced power stripOwner Installed

10 35.2 $32 0.9

Load sensing advanced power stripDirect Installed for home entertainment

10 43.3 $35 1.1

Load sensing advanced power stripDirect Installed for home office

10 22.5 $35 0.6

9

EUL: Advanced Power Strip Research Final Report for NYSERDA (2011) by Lockheed Martin, Inc., and Energy Solutions.


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


UES – Tier 2 IR Sensing


(kWh)

Capital Cost

($/unit)

TRC B/C Ratio

Infrared sensing advanced power stripOwner Installed

10 321.2 $100 2.8

Infrared sensing advanced power stripDirect Installed

10 321.2 $60 4.7

11


UES – Tier 2 Motion SensingProducts are marketed for computer

environmentsAfter set period like 30 minutes, power to

controlled devices is shut offGreatest savings occur in monitor

12


UES – Tier 2 Motion Sensing Key Assumptions

Device SaturationReduction in Active

or Active Standby hours

Computer

Monitor 100% 50%

Printer 100% 50%

Speakers 50% 50%

13


UES – Tier 2 Motion Sensing


(kWh)Capital Cost

($/unit)TRC B/C

Ratio

Occupancy sensing advanced power stripOwner Installed

10.0 67.4 $32.50 1.8

Occupancy sensing advanced power stripDirect Installed

10.0 67.4 $35.00 1.7

14


Measure Research PlanReview of the proposed research plan:

•Sample Design

•Collaboration Strategy

•Analysis and Data Collection Plan

15


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


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


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


Additional Slides

19


Potential Problems with APS’sLoad (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


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


Measure SpecificationLoad (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


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 joulesTested to UL Standard 1449-NTLRated for 120 V and 15 ampsUL 1363 listed

Measure Specification (cont)


Measure Specification (cont)

Connected product warrantyResettable circuit breakerConsumes less than 1 watt of stand-alone

powerAt least a one year warranty Adjustable switching threshold on load-sensing

power strips (dial, switch, or automatic)

24

Documents

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