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Commercial Smart Plug Power Strips Proposal: UES Small Saver Josh Rushton Regional Technical Forum February 18, 2015.

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Presentation on theme: "Commercial Smart Plug Power Strips Proposal: UES Small Saver Josh Rushton Regional Technical Forum February 18, 2015."— Presentation transcript:

1 Commercial Smart Plug Power Strips Proposal: UES Small Saver Josh Rushton Regional Technical Forum February 18, 2015

2 Presentation Outline Objective: Update to Commercial Smart Power Strips measure (recommend UES Small Saver) History Overview Savings Cost Proposal 2

3 History April, 2009: RTF “provisionally deems” smart strip UES (100 kWh/yr). October, 2011: Based largely on BPA Ross complex data, RTF approves load sensing smart strip in commercial office applications (proven UES 100 kWh/yr) Past RTF discussions noted that the measure has a lot of potential but hasn’t really taken off. This is still the case. 3

4 Measure Overview Sector:Commercial Measure name:Smart Plug Power Strips Baseline:Pre-conditions Applicability: Office space setting Load-sensing, motion-sensing, and timer-controlled power strips Must have at least one controlled device CurrentProposed Category:ProvenSmall Saver Status:ActiveActive Sunset Date: 03 / 31 / / 31 / 2016 Annual Savings:100 kWh118 kWh Measure life: 4 years 4 years B/C Ratio:

5 Measure Overview 5 Load-sensing smart strips Powers down switched outlets when idle power level detected in “master” device Typical set-up looks for PC sleep mode Set-up: Enable PC sleep mode, set potentiometer to detect sleep mode power level Timer-controlled smart strips Powers down switched outlets at pre-determined times of day Set-up: Program off-hours Motion-sensing smart strips Powers down switched outlets when no motion has been detected for X minutes. Set-up: Position motion sensor New additions in proposed measure Included in current measure

6 Measure Overview Common set-ups Workstation (load sensor, motion sensor, timer) – Switched: Monitors, desk lamps, printers, personal space heaters, speakers, tiny decorative waterfalls, … – Not switched: CPU, other sensitive devices – For load sensors, primary monitor often plugged into “master” outlet (not switched) Copy room (timer) – Copier, printer, scanner/fax machine, … Break room/kitchen (timer) – Coffee maker, water cooler, … 6

7 Savings Depends on… – Mix of controlled devices (we know something about this) – How often spaces/devices are idle; whether idle devices are powered down in base case (know less about this) Hard to measure directly. Pre-/post- metering may be complicated by… – Seasonal lighting and heating – HR policies limiting electronic devices (researchers need to sample a lot of different businesses) 7

8 Savings Control Type BuildingBuilding Type ReferenceSample sizeAnnual energy savings Load Sensor WW LogisticsCommercial[IDL, 2012]88 APS (94 FTE) 19% of plug load; 160 kWh/APS 1 Ross BuildingGovernment[BPA, 2011]45 APS (all at workstations) 29% of affected load; 130 kWh/APS 2 VA CenterGovernment[NREL, 2012]12 APS10% of affected load R&M CHGovernment[NREL, 2012]12 APS23% of affected load 3 Motion Sensor Land RecordsGovernment[IDL, 2012] 33 APS (31 FTE) 22% of plug load; 75 kWh/APS 4 Timer WJ Greene Bldg.Government[NREL, 2012]12 APS52% of affected load 5 EA Garmatz CHGovernment[NREL, 2012]12 APS43% of affected load 3 JBPHH-A4Military Office[NREL, 2014]100 APS (90 FTE) 28% of plug load; 110 kWh/APS 3 1 Figures approximate based on published tables. 2 Includes high savings due to one outlier and zero savings due to user-disabled units; median savings 80 kWh. 3 Approximately two thirds of savings due to printers/copiers. 4 Report notes low number of auxiliary plug loads in this office suite. 5 Nearly 80% of savings due to kitchen equipment. 8

9 Why is small saver okay? Roadmap Section 2: “The RTF may determine that the likely savings from a measure are too small to warrant the resources needed to meet the quality standards defined for Provisional or Proven measure. Such measures are categorized as Small Saver.” Puget: Not currently offering this measure Tacoma: Often suggest program participants but haven’t found much interest. Avista: Might offer next year, but haven’t offered for past two years BPA publics: Reported 3,929 commercial smart strips in 2013 (2014 tally not yet known). Not the highest-priority measure for ramp-up at this time At 100 kWh per unit per year, 10,000 units would be about 0.1aMW Reminder: Guidelines intend Small Savers to be included in evaluation (if certain threshold condition is met) 9

10 Cost ControlBrandModelOutletsCord length Protection rating Price 1, 2 Load Sensor Tripp LiteAV86G86 ft.1080 J$30 TrickleStar74 ft.2160 J $35 3 Take ChargeUTC8MS82 ft.2400 J$30 Smart Strip ft. 900 J$32 Motion Sensor WattStopperIDP ft. 740 J$80 TrickleStar74 ft.1080 J$40 Timer Tripp LiteTLP74TG74 ft.2100 J$36 TrickleStar84 ft. 720 J$30 None Tripp LiteTLP606B66 ft. 790 J$11 Tripp LiteSuper7B77 ft.2160 J$17 TrickleStar74 ft.2160 J $20 3 BelkinBE106 – 08R66 ft. 700 J$11 1 Except as noted, prices are from amazon.com (Feb. 4, 2015) and do not include shipping. 2 Prices may also be affected by factors such as product warrantee and current capacity (amps) that vary among models and are not recorded in the table. 3 Price from manufacturer web page (Feb. 4, 2015). 10 Average of these: $33.30

11 Cost Cost based on full purchase price (not just increment over standard power strip option) Does not include shipping expense 11 Purchase price (online retail, Feb, 2015)$33.29 Installation cost (10 minutes; $20/hr) $3.33 Total$36.62

12 Proposed Motion “I, ______________, move to approve the Commercial Smart Plug Power Strips measure as a Small Saver with a sunset date of March 31, 2017.” 12

13 Additional Slides 13

14 References [IDL, 2012] Acker, B., C. Duarte, K. Van Den Wymelenberg, Office Building Plug Load Profiles, Technical Report , University of Idaho Integrated Design Lab. [BPA, 2011] BPA, Smart Power Strip Energy Savings Evaluation (Ross Complex), aluation%20Rev1.doc [NREL, 2012] Metzger, I., D. Cutler, M. Sheppy, Plug-Load Control and Behavioral Change Research in GSA Office Buildings, NREL action [NREL, 2014] Sheppy, M., Metzger, I., D. Cutler, G. Holland, Reducing Plug Loads in Office Spaces Hawaii and Guam Technology Demonstration Project, NREL. 14

15 Tier What? NEEP’s terminology note NEEP working group recommends “tier 2” as industry lingo for APS that target active power down savings …and use “Activity Monitor Power Strip” with “active power down” savings as the customer-facing phrase Activity Monitor Power Strip (includes tier 2). Power strip looks for signs of activity in the room, and turns off outlets if none is detected. Use additional phrase “Active Power Down” when describing Tier 2 APS. Master-Controlled Power Strip. When a primary device (such as a computer or TV) is turned off by the use, the power strip automatically turns off (de-energizes) the controlled outlets. Masterless Power Strip. When all of the controlled devices are turned off, the power strip turns off power to those outlets completely, eliminating all of the vampire loads. Remote Switch Power Strip. Power strip can be turned off by the user via a remote switch. Timer Power Strip. 15

16 October 2014 RTF meeting Jerome: CLEAResult has been looking at other Technical Reference Manuals (TRMs) to see if they will be of help. I’ll let you know if we find anything. Davis: There have been proposals to do things with this, but nothing has materialized regionally. Danielle Walker (BPA): Yes. I’ll check whether BPA is on the uptake. Davis: In Vancouver there’s some trouble with the data. Grist: One question is what is connected to the power-strip that you're turning off – it can be anything from a computer to foot warmers. People added space heaters to the post-period versus what was there in the pre-. Eckman: Is there a recommendation to bring it back as an alternative measure type – a Small Saver – pending no data? – Rosolie: I move to extend the sunset date to March 31, (Koran: Second) Davis: The sample size you’d need given the variance is spectacular. Brad Acker: What’s the status of the available research? – Grist: We have nothing new, although BPA and CLEAResult are looking into it. – Acker: I have a 2011 paper. 16


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