Technology I Sub-Metering 101

Proprietary Information Of Energy 2013 Submetering 101 What Federal Facility Managers Need To Know Presented by Steve Kearney – E-Mon

Proprietary Information Of Energy 2013 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

Proprietary Information Of Energy 2013 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

Proprietary Information Of Energy 2013 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

Proprietary Information Of Energy 2013 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.

Proprietary Information Of Energy 2013 ACCURATE ENERGY MONITORING Electronic submetering equipment meets or exceeds * ANSI C12 national accuracy standards. *American National Standards Institute

Proprietary Information Of Energy 2013 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.

Proprietary Information Of Energy 2013 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

Proprietary Information Of Energy 2013 PROMOTES ENERGY SAVINGS (Benchmarking) Accurate knowledge of where energy is being consumed is the first step in creating a savings program. (Continuous Commissioning) Constant monitoring allows the user to gauge the results of an energy savings program.

Proprietary Information Of Energy 2013 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:  1.37 lbs. carbon dioxide (CO2)  5.8 grams sulphur dioxide (SO2)  2.5 grams nitrous oxides (NOx)

Proprietary Information Of Energy 2013 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.

Proprietary Information Of Energy 2013 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.

Proprietary Information Of Energy Electronic kWh Meter Installation 1.Mount meter at desired location 2.Connect voltage inputs – fuse/provide disconnect according to code 3.Install split-core current sensors 4.Power up meter

Proprietary Information Of Energy 2013 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

Proprietary Information Of Energy ,000+ Federal buildings Section Sets efficiency goals for existing buildings to increase 2% per year to 20% by 2015 Section Extends energy savings performance program to 2016 Section New buildings must comply with ASHRAE 90.1 – 2004 Goal of 30% below 2004 standards Apply sustainable design principles Federal Buildings Efficiency

Proprietary Information Of Energy 2013 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 The LEED Rating System

Proprietary Information Of Energy 2013 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 –enhanced metering-use electric, water and gas meters and software system for ongoing accountability and optimization of building energy performance over time

Proprietary Information Of Energy 2013 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

Proprietary Information Of Energy 2013 Hawthorne Effect Mandalay Condos  Yearly usage in millions of kWh.  Submetering added in July of  Changes due to tenant awareness.  450,000 kWh saved.  675,000 lb. less CO 2 in atmosphere. Yearly Consumption X 1,000,000

Proprietary Information Of Energy 2013 Changes made after submetering analysis. Demand reduction:720 kW Energy Savings:4,862,000 kWh/year Pollution Savings:6,660,940 lbs. CO 2 62,168 lbs. SO 2 26,797 lbs. NOx Cost Savings:$343,000 Proactive Virginia Power Corporate Hq. & Innsbrook Tech. Ctr.

Proprietary Information Of Energy 2013 Pollution Saved  CO2 REDUCTION AT VIRGINIA POWER IS ENOUGH TO FILL A TRAIN OF BOXCARS ALMOST 110 MILES LONG -- BY VOLUME. (13,527 BOXCARS )

Proprietary Information Of Energy 2013 L.A. Air Force Base Identify energy saving opportunities Verification of savings Energy budgeting Comply with energy reduction mandates

Proprietary Information Of Energy 2013 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

Proprietary Information Of Energy 2013 SustainabilitySustainability The practice of creating and using more resource efficient models of construction, renovation, operation, maintenance, and demolition.

Proprietary Information Of Energy 2013 Three Major Components of Energy Usage Energy Usage 1.) HVAC 2.) Lighting 3.) Receptacle Loads

Proprietary Information Of Energy 2013 RED= HVAC BLUE= Lighting Green= Receptacle Three Major Components Breakdown

Proprietary Information Of Energy 2013 For more information visit our booth at the Energy 2013 show or visit