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Electrical: Meters, submeters, and smart meters
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Electrical: Meters, submeters, and smart meters


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Installed on the utility side of an electrical service, a smart meter allows the utility to determine the quantity and time of electricity usage for setting rates and assessing charges. Installed on …

Installed on the utility side of an electrical service, a smart meter allows the utility to determine the quantity and time of electricity usage for setting rates and assessing charges. Installed on the facility side of an electrical service, a submeter allows an owner/operator to track quantity and time of electricity usage according to department, tenant, floor, or load type.

Consulting and specifying engineers can help their clients realize benefits with minimal investments by encouraging them to consider smart meters and submeters. Smart meters can help owners/operators manage (and, in many cases, lower) their electrical demand charges and prepare for the Smart Grid. Submeters may help them allocate charges by tenant or department as well as help them qualify for LEED points.

Visit to view this as an "On Demand Webcast," download the slides, and to take the CEU Exam. 1 AIA CES accredited LU available for attendees.

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  • Demand side management
  • Transcript

    • 1. Smart Electrical Systems:Specifying and CommissioningSmart Meters
    • 2. About the Viewer Panel• Presentation:• CEU Exam:• Learn more about Eaton:• For more information on another Consulting-Specifying Engineer webcast visit
    • 3. AIA CES learning units (LU)To obtain AIA CES learning units:• Go to the “Links” tab and click on the exam link• Take a 10-question exam for 1 LU (learning unit)• Get 8 answers correct to pass• Certificate available to download once you pass• You must be registered for the Webcast to take the examand qualify for continuing education credits• If attending as a guest of a registrant:• Access the archive at• Complete the registration form• View the archive and download slides• Take the exam to obtain learning units (LU)
    • 4. Quality AssuranceConsulting-Specifying Engineer, as a publication of CFE Media,is registered provider J619 with The American Institute ofArchitects Continuing Education Systems. Credit earned oncompletion of this program will be reported to CES Records forAIA members. Certificates of Completion for non-AIA membersare available on request.This program is registered with the AIA/CES for continuingprofessional education. As such, it does not include content thatmay be deemed or construed to be an approval or endorsementby the AIA of any material of construction or any method ormanner of handling, using, distributing, or dealing in any materialor product.Questions related to specific materials, methods, and serviceswill be addressed at the conclusion of this presentation.
    • 5. Speakers:• Tom Divine, PE, Smith SeckmanReid Inc., Houston• Chris Edward, KJWW EngineeringConsultants, Naperville, Ill.• Jack Smith, Consulting- SpecifyingEngineer and CFE Media LLC
    • 6. Smart Electrical Systems:Specifying and CommissioningSmart Meters
    • 7. Definition: Smart electric meter• Measures electric energy• Communicates• May do other things, too
    • 8. Dumb Not-as-smart Meters• Not exactly dumb• Electromechanical• Very reliable• 2% Accuracy• All for about $35 in1980
    • 9. Electromechanical MeterAttribution: CommonsAttribution -Share Alike 2.5Generic License
    • 10. Move to digital meters – 1980s• Sometimes an add-on device• Unsophisticated communication• Often implemented in limited scope forworker safety
    • 11. Smart meters today• Digitize current and voltage• Accumulate usage• Log usage• Transmit• And may do more
    • 12. Two smart metersAttribution: User:J JMesserly.Creative CommonsAttribution-Share Alike 3.0 UnportedAttribution: ZuzuCreative CommonsAttribution-Share Alike 3.0 Unported
    • 13. Other smart meter functions• Waveform capture• Power quality monitoring• Automatic notification• Transformer loss compensation• Control functions
    • 14. Specifying a smart meter• Whats its purpose?• What does it talk to?• What else does it need to do?
    • 15. Purpose• Billing• Auditing utility charges• Internal accounting• Retrospective energy analysis• Real-time analysis• Advanced functions
    • 16. Communications• Number of ports• Physical interface• Wired, wireless• Communication protocols• Legacy systems
    • 17. Other functions• Waveform capture• Power quality monitoring• Remote notification• Control functions
    • 18. Commissioning• Typically not examined• Proper installation• Current transformers• Proper setup• Transformer ratios• Internal register mapping
    • 19. More commissioning• Accuracy testing• Communications testing• System integration• Advanced function testing• Programmable inputs and outputs
    • 20. Finishing up• Cant manipulate primary• Secondary injection• Ongoing commissioning
    • 21. Summary• Smart meters communicate– and may do other more complex tasks• Specifying a smart meter requires:–Determining purpose–Defining communication requirements–Selecting advanced functions
    • 22. Summary• Commissioning a smart meter is a processof verifying:–Verifying the installation–Verifying the setup–Verifying accuracy–Verifying advanced functions–Verifying integration with other systems
    • 23. Part 2 – Metering for Demand Response,USGBC LEED, and Energy StarChris Edward, KJWW Engineering Consultants
    • 24. Sponsored by:Smart Electrical Systems: Meters, Submeters,and Smart meters DEMAND RESPONSE• Industry Overview• Utility Metering• Submetering• Available DR Programs LEED CERTIFICATION• Point system• Metering and Submetering requirements• Building types ENERGY STAR CERTIFICATION
    • 25. Demand Response• Direct or indirect relationship with the Utility• Load ramping curtailment• Peak shaving0200400600800100012001400160018005:00AM6:00AM7:00AM8:00AM9:00AM10:00AM11:00AM12:00PM1:00PM2:00PM3:00PM4:00PM5:00PM6:00PM7:00PM8:00PM9:00PM10:00PM11:00PMCALL FORD.R.2:00 PMKILOWATTSWhat is it?
    • 26. DIRECTION OF THE INDUSTRY• 40GW (4%) currently involved• Development of standards- Construction standards- Protocol Standards• Advancement of Smart Grid• Load management rather than newgeneration• Integration of distributed generationDemand Response
    • 27. DYNAMIC PRICING• Higher demand requires more costly generation• Real-time pricing allows consumer response• Utilities currently in the study and trial phaseDemand Response
    • 28. ONGOING LEGISLATION• Federal Energy RegulatoryCommission (FERC)• Standards bodies– ASHRAE– US Green Building Council(USGBC LEED)– International Green BuildingCouncil (IgCC)– Contributors (IEEE, DRRC)Demand Response
    • 29. METERING• AMI “Smart” metering• Communication with the Utility• Call for load curtailmentDemand ResponseSIEMENS PRESS PICTURE
    • 30. COMMUNICATIONS STANDARDS• Open Automated Demand Response (Open ADR)– Developed by Lawrence Berkeley National Lab, part of DOE– Non-proprietary communication protocolCommunication of:– Traditional events– Price based events– Load shed verificationDemand Response
    • 31. SUBMETERINGValue is in ability to analyze facility usage, processes, patterns• Departmental segregation• Direct load control verification• Building Automation integration– Programmed load control• Logging– Data can be viewed on web portal, through BASDemand Response
    • 32. POSSIBILITIES WITH METERING• Contracted maximum load• Automatic load shed based on utility voltage level• Real-time pricing based automation– Cycling of HVAC– Lighting control– On-site generation• Net metering & distributed generationDemand Response
    • 33. CUSTOMER CONTRACTSTypes of involvementDynamic pricing without automationDynamic pricing with automationDLC – Direct load controlInterruptible tariffsOtherSpecified notification of a minimum 2 hours to 10 minutes inadvanceRequests usually limited to 6 hoursDemand Response
    • 34. CUSTOMER CONTRACTSThird Party AdministratorAggregatorCurtailment Service ProviderProvides:• Installation and setup• Web portal viewing• Program administrationDemand Response
    • 35. Sponsored by:LEEDCERTIFICATIONMeasurement & Verification CreditsSpecifies• Measurement options• verification timeline• plan for corrective actionPoints• 3 – New Construction• 3 – Core & Shell• 5 – Commercial Interiors• 2 – Healthcare• 2 – Schools
    • 36. NEW CONSTRUCTIONHEALTHCARESCHOOLSOption B: ECM Isolation- Metering of building systems – Lighting, Motors, HVAC, General- 1 year post-construction occupancyorOption D: Whole Building Simulation- Energy model and post-occupancy verification from meteringorEnergy Star (1 point)LEED Certification
    • 37. CORE & SHELLM&V – Base building- IVMVP Option B or Option D (or Energy Star for 1 point)- to include existing metering and tenant metering planM&V – Tenant submetering- Expandable central metering network- Tenant M&V plan- Corrective actionLEED Certification
    • 38. COMMERCIAL INTERIORSProjects <75% of total building- Install submetering within tenant space- Energy costs paid by tenantProjects >75% of total building- Submetering for lighting, HVAC loads, water use- IPMVP Option B,C, or D- Corrective action planLEED Certification
    • 39. OTHER POINTS SUPPLEMENTED BY METERINGEAc2 – On-site renewable energyEAc3 – Enhanced commissioningWater efficiency creditsLEED V4 DRAFT• Added water metering points: cooling tower, outdoor vs. indoor• Building level metering: “electricity, natural gas, chilled water, steam, fueloil, propane, biomass, etc” and sharing of data for 5 years.• Advanced Energy Metering: submetering down to 10% of load type;remotely accessible data• Demand Response: automatic DR; on-site generation not counted.LEED Certification
    • 40. Sponsored by:Any facility can be ratedScale: 1-100 points based on efficiency above baselinePerformance rating based on 11 months of metering dataENERGY STAR CERTIFICATION
    • 41. Sponsored Federal Energy Regulatory Demand Response Research PJM regional transmission US Green Building Council DOE energy star programADDITIONAL RESOURCES
    • 42. Submitting Questions, Exit Survey and ArchiveQuestion?Type your question in the “Questions & Answers” box on theWebcast console and click “Send.” We will get to as manyquestions as we have time for.Exit Survey:Please take a moment to answer a few questions on our exitsurvey that should pop up on your screen. We use the answersto help make improvements to our webcast program.Archive:• Within 7 days, an archive with Q&A will be posted• We will send an email to registered attendees withhyperlink• Can also access from home page
    • 43. Speakers:• Tom Divine, PE, Smith SeckmanReid Inc., Houston• Chris Edward, KJWW EngineeringConsultants, Naperville, Ill.• Jack Smith, Consulting- SpecifyingEngineer and CFE Media LLC
    • 44. Today’s Webcast Sponsor
    • 45. Smart Electrical Systems:Specifying and CommissioningSmart Meters