N O R T H W E S T THE ESSENTIAL CREDENTIAL ENERGY EFFICIENCY - PowerPoint PPT Presentation

¡ ¡ N O R T H W E S T ¡ THE ¡ ¡ESSENTIAL ¡CREDENTIAL ¡ ENERGY EFFICIENCY COUNCIL BOC TECHNICAL WEBINAR SERIES Managing your Plug Loads March 16, 2016 11:00am Pacific Time Guest Moderator: Duane Lewellen Sr. Project Manager Smart Buildings Center SPEAKERS: Teresa Rodgers Technical Facilities Manager Hines www.TheBOC.info

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Learning Objectives • Explain the energy use impacts of plug loads in commercial buildings • Identify options for measuring plug load energy use • Understand energy saving strategies for plug loads • Describe resources available to help you measure and manage plug loads LEARN. LEAD. SUSTAIN

Today’s Guest Moderator & Speakers Duane Lewellen Teresa Rodgers LEARN. LEAD. SUSTAIN

Plug Load Energy Use Duane Lewellen

Plug Loads Defined • Typical office equipment but also includes appliances, chargers, task lighting, portable heaters, vending machines, holiday displays, etc. Everything that plugs into a receptacle

Plug Load Energy Use Source: ¡Energy ¡Informa1on ¡Administra1on ¡

Plug Load Energy Use Plug load energy use for computers and office equipment is increasing. In office buildings that have improved the efficiency of lights, heating and cooling, it can represent as much as 50% of the total electricity use. Sources: US – Energy Information Agency CA – CEUS 2012 offices – NBI Measured Data

Plug Load Policy ? • What equipment is allowed? • Enforcement – Who is responsible? • New equipment energy use • Laptops? (Bring your own device) • Surge protection? ¡

Benchmarking Plug Loads “You can’t manage what you don’t measure” • The foundation of sound and sustainable energy management Monitor Btu (more control) vs. Monitor $ (less control)

Plug Load Inventory ¡ ¡ • Use power plans to organize the walkthrough • Use a data collection form • Have employees complete form for their office • Interns? ¡

Case Study – Stanford University • 86% of campus inventoried • Ten buildings consume 30% of total campus plug load consumption • Largest “energy hogs” were servers, lab freezers, and space heaters • Plug loads are 22% of total campus electricity use • Inventory informed new building electrical infrastructure and cooling system sizing

Measuring Plug Loads • Develop a metering plan • Electric panel vs. receptacle vs. equipment load • What equipment cannot be turned off for metering • Prioritize equipment types for metering • Health and safety issues • Shutdown procedures • Reconfiguration requirements on start-up

Simple Measurement • Watts, Amps, Volts, Kilowatt Hours, Power Factor • Relatively low cost ($25 to $125) • Built-in surge protection • Cumulative energy use • No time stamp (no logging capability)

Data Loggers • Time stamp with kwh use data • Able to store and download data to computer for analysis • Easy to deploy for one week intervals • Use 30 second intervals to measure parasitic losses (idling) ¡

Submetering • Receptacle circuits or panels • Able to store and download data to computer for analysis • Ability to interface with Building Automation System • Licensed electrician required for install ¡

Energy Saving Strategies Teresa Rodgers

5 Steps For Managing Plug Loads 1. REVIEW. Inventory your equipment and focus on the devices that use the most energy 2. REMOVE. Eliminate or unplug unnecessary devices 3. REPLACE. Purchase the most energy efficient devices for the job 4. REDUCE. Turn it off or power it down when not in use 5. RETRAIN. Engage staff. Make sure they understand why, when, and how to power down ¡

Plug Load Energy Savings Opportunities ¡ Source: NBI Plug Load Best Practices Guide

Power Management • Enable aggressive ¡ power management settings • Stay on top of your settings • Activate sleep settings across a network of computers • Consolidate/centralize printing, fax, copying services ¡ Source: ¡NBI ¡Plug ¡Load ¡Best ¡Prac1ces ¡Guide ¡

Advanced Plug Strips/Timers ¡ • Occupancy sensing • Plug strips with integral timer • Smart strip with programmable scheduling and metering • Timers for food service equipment • Switched receptacles • Vending miser for vending machines ¡

Web Based Metering & Control ¡

Occupant Behavior ¡ Remember: Buildings don’t use energy, people do • Keep office staff well informed • Offer training on new devices • Communicate why managing plug loads is important • Consider friendly competitions that reward reductions in energy use • Encourage staff to get into the habit of thinking about energy • Implement an “energy minute” at staff meetings to discuss energy use • Check with staff frequently to find out if everything is working-if not, determine why and work to find a better strategy

Case Study: 4 th & Madison ¡

� 4 co-workers volunteer to be test subjects � Inventory of equipment taken: ¡#1 ¡ #2 ¡ #3 ¡ #4 ¡ 1 ¡computer ¡ 1 ¡computer ¡ 1 ¡computer ¡ 1 ¡computer ¡ 2 ¡monitors ¡ 1 ¡monitor ¡ 1 ¡monitor ¡ 1 ¡monitor ¡ 2 ¡printers ¡ 1 ¡printer ¡ 1 ¡printer ¡ 1 ¡printer ¡ 1 ¡radio ¡charger ¡ 1 ¡radio ¡charger ¡ 1 ¡radio ¡charger ¡ 1 ¡radio ¡charger ¡ 1 ¡cell ¡phone ¡ 1 ¡cell ¡phone ¡ 1 ¡cell ¡phone ¡ 1 ¡cell ¡phone ¡ charger ¡ charger ¡ charger ¡ charger ¡ 1 ¡clock ¡radio ¡ 1 ¡AM/FM/CD ¡radio ¡

The data ¡ ¡ Annual "Business as "with smart Energy Usual" strip" Savings Test Subject Annual kWh Annual kWh % Reduction (kWh) #1 1014.60 648.72 36.06% 365.88 #2 928.20 430.44 53.63% 497.76 #3 762.12 445.32 41.57% 316.80 #4 680.40 390.48 42.61% 289.92 total 3385.32 1914.96 43.43% 1470.36

Financial Assessment - Seattle � Initial Cost: 4 x $75.18 each = $300.72 � Operations & Maintenance Cost = 0 � Annual Energy Savings = 1470.36 kWh/yr � Simple Payback Period = 2.79 years *Assumes a 10-year useful life, however, a typical lifecycle could be much longer

¡ Environmental Impact in Other Parts of the Country ¡ ¡ State ¡ $ ¡/ ¡kWh ¡ AES ¡($) ¡ SPP ¡(yrs) ¡ Alabama ¡ $0.1041 ¡ 153 ¡ 1.97 ¡ Hawaii ¡ $0.2631 ¡ 387 ¡ 0.78 ¡ Illinois ¡ $0.0846 ¡ 124 ¡ 2.43 ¡ New ¡York ¡ $0.1683 ¡ 247 ¡ 1.22 ¡ Texas ¡ $0.0933 ¡ 137 ¡ 2.20 ¡

time for … Q & A

Tool Lending Library Locations Washington State • Smart Buildings Center - http://www.smartbuildingscenter.org/tool-library/ Idaho • University of Idaho – Integrated Design Lab - http://www.idlboise.com/tool-loan-library California • Pacific Gas & Electric - http://www.pge.com/pec/tll/ • Sonoma County - http://sonomacountyenergy.org/resources/contractor-resource-center/tool-lending-library/ • Southern California Edison - https://www.sce.com/wps/portal/home/business/consulting-services/energy-educationcenters/tulare/!ut/ p/b1/ hdBNb4MwDAbgX8OVmCRldDdDGSRizRjVSnOZ6MQoEyUVZeXvL6u6w759s_W8lmyiSUl0X53aphpb 01fde6_9RykW6CWcikDiDMRSFWmMdzSaexZsLIBfCuG__JroM_GCBFNRgFB8wUGEqyy8CW4Z9- EbCIVvQYSRUhIg97-C5P6KgpAPcaZCjwKnFzBPIE6lsmCVMxAsh2WByAA- NvxxhSS66cz2_JEN9lsWNEQP9XM91IP7OtjxbhwPx2sHHJimyW2MabrafTJ7B36K7MxxJOVnSQ77Elr xMutOGb4BKlagaA!!/dl4/d5/L2dBISEvZ0FBIS9nQSEh/?from=agtac • San Diego Gas & Electric - https://c95021.eos-intl.net/C95021/OPAC/Index.aspx New York • CUNY Building Performance Lab - http://www.cunybpl.org LEARN. LEAD. SUSTAIN

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