technology i
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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 - PowerPoint PPT PresentationTRANSCRIPT
Technology I
Sub-Metering 101
Proprietary Information Of Energy 2013
Submetering 101
What Federal Facility Managers Need To Know
Presented bySteve Kearney – E-Mon
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Metering vs. SubmeteringMetering vs. Submetering
• What is submetering? – Defined as a metering device installed after the main
utility meterUsed 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
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Overview: Electro-Mechanical MeterOverview: 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
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Overview: Sensor-Based SubmetersOverview: Sensor-Based Submeters• Non-Socket, Current Sensor Based Technology– Limited or no Power interruption
– Lower installed cost No CT CabinetsNo Meter SocketReduced cabling and conduit
– 1/10 the time to install
– Space saving and flexibility in location• Multiple submeters per location increases revenue stream
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BENEFITS OF SUBMETERINGBENEFITS 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.
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ACCURATE ENERGY MONITORINGACCURATE ENERGY MONITORING
Electronic submetering equipment meets or exceeds *ANSI C12 national accuracy standards.
*American National Standards Institute
•
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EASE AND FLEXIBILITY OF EASE AND FLEXIBILITY OF INSTALLATIONINSTALLATION
• 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.
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Energy ManagementEnergy 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
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PROMOTES ENERGY SAVINGSPROMOTES 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.
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Positive Environmental ImpactPositive 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)
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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.
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PROVIDES “TIME-OF-USE” GRAPHS AND CHARTSPROVIDES “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.
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1
2
3
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
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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
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• 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
Federal Buildings Efficiency
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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
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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
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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
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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. 3.9
4
4.1
4.2
4.3
4.4
4.5
4.6
4.7
'92 '93 '94 '95
kWh
Yearly Consumption X 1,000,000
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Changes made after submetering analysis.
Demand reduction: 720 kWEnergy Savings: 4,862,000 kWh/yearPollution Savings: 6,660,940 lbs. CO2
62,168 lbs. SO2
26,797 lbs. NOxCost Savings: $343,000
ProactiveProactiveVirginia PowerVirginia Power
Corporate Hq. & Innsbrook Tech. Ctr.
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Pollution SavedPollution Saved
CO2 REDUCTION AT VIRGINIA POWER IS ENOUGH TO FILL A TRAIN OF BOXCARS ALMOST 110 MILES LONG -- BY VOLUME. (13,527 BOXCARS)
CO2 REDUCTION AT VIRGINIA POWER IS ENOUGH TO FILL A TRAIN OF BOXCARS ALMOST 110 MILES LONG -- BY VOLUME. (13,527 BOXCARS)
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L.A. Air Force Base
• Identify energy saving opportunities
• Verification of savings• Energy budgeting• Comply with energy
reduction mandates
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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
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SustainabilitySustainabilitySustainabilitySustainability
The practice of creating and using more resource efficient models of construction, renovation, operation, maintenance, and demolition.
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Three Major Components ofThree Major Components of Energy UsageEnergy Usage
1.) HVAC2.) Lighting3.) Receptacle Loads
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RED= HVACBLUE= LightingGreen= Receptacle
Three Major Components BreakdownThree Major Components Breakdown
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For more information visit our booth at the Energy 2013 show or visit www.emon.com