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Technology I

Technology I. Sub-Metering 101. Submetering 101. What Federal Facility Managers Need To Know Presented by Steve Kearney – E-Mon. Metering vs. Submetering. What is submetering ? Defined as a metering device installed after the main utility meter

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Technology I

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  1. Technology I Sub-Metering 101

  2. Submetering 101 What Federal Facility Managers Need To Know Presented by Steve Kearney – E-Mon

  3. Metering vs. Submetering • What is submetering? • Defined as a metering device installed after the main utility meter • Used for capturing facility energy data at a specific location, panel, circuit or user. • Delivers granularity of facility energy performance data Submeters –The critical component for accessing facility energy related data

  4. Overview: Electro-Mechanical Meter • The Electro-Mechanical Meters • Typical Utility type Meter • Available in various amperages • Power passes through meter, then to distribution panel • Requires substantial physical space for installation • One meter per building • Restricted ability to sell multiple meters per customer site

  5. Overview: Sensor-Based Submeters • Non-Socket, Current Sensor Based Technology • Limited or no Power interruption • Lower installed cost • No CT Cabinets • No Meter Socket • Reduced cabling and conduit • 1/10 the time to install • Space saving and flexibility in location • Multiple submeters per location increases revenue stream

  6. BENEFITS OF SUBMETERING. • Accurate energy monitoring. • Ease and flexibility of installation. • Concise energy management tool. • Promotes energy savings. • Positive environmental impact. • Automatic Meter Reading capable. • Provides T.O.U. graphs and charts.

  7. ACCURATE ENERGY MONITORING Electronic submetering equipment meets or exceeds *ANSI C12 national accuracy standards. *American National Standards Institute

  8. EASE AND FLEXIBILITY OF INSTALLATION • Metering installs in practically any available space. • Any size circuit from main distribution to a single 15 amp branch can be monitored.. • No changes to building wiring required.. • Using split-core current sensors will allow installation without disconnecting cables.

  9. Energy Management • Submetering easily ties into Building/Energy management equipment. • Detailed energy data gives system maximum control over energy usage, etc. • Remote monitoring by Automatic Meter Reading system acts as “watchdog” to keep an eye on performance • Maximum control = Maximum savings

  10. PROMOTES ENERGY SAVINGS • (Benchmarking) Accurate knowledge of where energy is being consumed is the firststep in creating a savings program. • (Continuous Commissioning) Constant monitoring allows the user to gauge the results of an energy savings program.

  11. Positive Environmental Impact • Better efficiency delays need for new generating facilities. (costs stay lower) • Lower pollution provides environmentally friendly image.. Each kilowatt-hour of electrical energy saved reduces pollution by: F1.37 lbs. carbon dioxide (CO2)F5.8 grams sulphur dioxide (SO2) F2.5 grams nitrous oxides (NOx)

  12. AUTOMATIC METER READING • Allows reading of meters at any time, day or night. • Allows meter reading in all weather conditions. • Allows reading of meters anywhere in the world from your computer.

  13. PROVIDES “TIME-OF-USE” GRAPHS AND CHARTS • Data for “real-time” pricing of energy. • Data for event analysis. • Data for Demand Side Management programs. • Data for energy program planning and performance analysis.

  14. Electronic kWh Meter Installation 1 3 2 • Mount meter at desired location • Connect voltage inputs – fuse/provide disconnect according to code • Install split-core current sensors • Power up meter

  15. EPACT 2005 Overview • Energy Policy Act of 2005 • Signed into law by Pres. Bush 8/05 • Extended to 12/31/13 • May be extended further • Key Provisions • Required all Federal buildings to be metered or submetered • Federal building energy-efficiency standards • Tax deduction for energy-efficient buildings

  16. Federal Buildings Efficiency • 500,000+ Federal buildings • Section 102 - Sets efficiency goals for existing buildings to increase 2% per year to 20% by 2015 • Section 105 - Extends energy savings performance program to 2016 • Section 109 - New buildings must comply with ASHRAE 90.1 – 2004 • Goal of 30% below 2004 standards • Apply sustainable design principles

  17. The LEED Rating System • Leadership in Energy & Environmental Design: • Sustainable Sites • Water Efficiency • Energy & Atmosphere • Material & Resource • Indoor Environmental Quality • Innovation & Design Process • LEED Certification Levels: • Certified • Silver • Gold • Platinum

  18. Metering Credits • Measurement & Verification – EA Credit 5 • use meters for base building, tenant submetering and energy system performance • Building Operations & Maintenance – EA Credit 3.3 • use meters and software system to educate staff, continuously track performance and optimize systems • Performance Measurement – EA Credit 5.1 - 5.3 • enhanced metering-use electric, water and gas meters and software system for ongoing accountability and optimization of building energy performance over time

  19. Metering Credits (2) • Documenting Sustainable Building Cost – EA Credit 6 • Use Submetering Software to document overall build operating costs to identify any positive impacts relative to sustainable performance improvements • Optimize Energy Performance – EA Credit 1 • Verify that energy efficiency equipment and system are operating at peak performance and as specified in the building design • Energy Use, Measurement & Payment Accountability – EA Credit 3 • Provide for the ongoing accountability and optimization of tenant energy and water consumption including submetering equipment to measure and record energy uses within the tenant space • Negotiate a lease where energy costs are paid by the tenant and not included in the base rent

  20. Hawthorne EffectMandalay Condos • Yearly usage in millions of kWh. • Submetering added in July of 1995. • Changes due to tenant awareness. • 450,000 kWh saved. • 675,000 lb. less CO2 in atmosphere. Yearly Consumption X 1,000,000

  21. Proactive Virginia Power Corporate Hq. & Innsbrook Tech. Ctr. Changes made after submetering analysis. Demand reduction: 720 kW Energy Savings: 4,862,000 kWh/year Pollution Savings: 6,660,940 lbs. CO2 62,168 lbs. SO2 26,797 lbs. NOx Cost Savings: $343,000

  22. Pollution Saved • CO2 reduction at virginia power is enough to fill a train of boxcars almost 110 miles long -- by volume. (13,527 boxcars)

  23. L.A. Air Force Base • Identify energy saving opportunities • Verification of savings • Energy budgeting • Comply with energy reduction mandates

  24. L.A. Air Force Base Hardware • Over 50 submeters • 21 interval data accumulators • Energy intelligence software • Est. Cost $50k • Used to verify over $1 million in savings • Won FEMP award for savings

  25. Sustainability The practice of creating and using more resource efficient models of construction, renovation, operation, maintenance, and demolition.

  26. Three Major Components of Energy Usage 1.) HVAC 2.) Lighting 3.) Receptacle Loads

  27. Three Major Components Breakdown RED= HVAC BLUE= Lighting Green= Receptacle

  28. For more information visit our booth at the Energy 2013 show or visit www.emon.com

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