ENTERPRISE ENERGY MANAGEMENT SYSTEM

Jason Kutch, P.E.

Malcolm Drane, P.E.

UTILITY METERINGAT PURDUE

2

AGENDA

• Organizational roles• Comprehensive Energy Master Plan (CEMP) goals• Metering program• Enterprise Energy Management (EEM) System• Benchmarking buildings• Project identification

3

METERING

ARC FLASH

HIGH VOLTAGE

PM & C

ENGINEERING

LOW VOLTAGE

MaintenanceBLDG DEPUTIES

BLDG OCCUPANTS

BLDG CONTROLS

UTILITIES DISTRIBUTION

ADACENT PROJECTS

ORGANIZATIONAL ROLESTHE TEAM

4

• Maintain meters• Add points and validation• Maintain users• View Screen creation• Set up alarms for points• Create/maintain predictive analytics models• Manage Web Configuration• History maintenance

ORGANIZATIONAL ROLES

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CEMP GOALS

• Plan was developed in 2012• Analyze production, distribution, and demand– Included metering all campus buildings– Controls optimization of building automation

systems (BAS)– System wide review of chilled water

• i.e. chiller operation, building pumps

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CEMP GOALS

• Effective Energy Management• Energy Savings Opportunities• Fiscally sustainable plan system wide• Education and Collaboration• Energy-Conscious and Environmentally responsible

culture• 10 year recurring energy and cost savings

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METERING PROGRAM• Purdue Produced utilities– Chilled Water– Electricity– Domestic Water– Steam Condensate

• Easily identify issues– Broken valve– Control deficiencies– Low delta T, high flows– Simultaneous heating and cooling

METERING PROGRAM

2012• $2.3M, 43 Buildings• Master plan developed

2013• $2M• Approx. 40 buildings

2014• $2M• Approx. 40 buildings

2015

• $1M• Over 140 buildings by

2015

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METERING PROGRAM

Domestic Water Main

Domestic Water irrigation

Steam Condensate

Temperature

Supply & Return Temperature

Chilled Water

Power

Lighting

DCCP

Ethernet

ARCHITECTURE

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METERING PROGRAM

• High accuracy• Low maintenance• Low pressure drop• Smart meter verification

METER SELECTION CRITERIA

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METERING PROGRAM• Chilled and Domestic Water meters

– Inline electromagnetic– +/- 0.5 % accuracy– No moving parts or obstructions– No mechanical maintenance

• Steam Condensate meters– Vortex Shedding– +/- 1 % accuracy– No moving parts– No mechanical maintenance

• Highly accurate RTD’s – Chilled Water– Steam Condensate

MECHANICAL METERS

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METERING PROGRAMINSTALLATION GUIDELINES

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METERING PROGRAMINSTALLATION GUIDELINES

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METERING PROGRAMChilled Water Domestic Water Steam Condensate

FlowTotal GallonsSupply TempReturn TempBTU/HRTonsTotal TNHR

FlowTotal GallonsDaily Total Gallons

FlowTotal GallonsDaily Total GallonsTemperature

DATA POINTS

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METERING PROGRAM

Selection Criteria – Low Maintenance– Revenue Grade Metering– High Precision Meter

• Minimum of 0.06% accuracy– Metering Form Selection

• (Form 5 vs. Form 9)– Waveform capture– Advanced Trending and data storage– Modbus Communication

ELECTRIC METERS

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ELECTRIC METERS

• Current Transformers (CT’s)– Revenue Grade Accuracy

• 0.3% Accurate

– Core Selection• Split vs. Solid

– Sizing Considerations• Physical Size• CT Ratio • CT Rating Factor

– Low end Current

COMPONENTS

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METERING PROGRAMElectrical

VoltageCurrentPower (kVA)Energy (kWh)Demand Power (kVA/kW)Peak Demand PowerPower Factor

DATA POINTS

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METERING PROGRAM

• Centralized data• No manual meter reads• Ease of maintenance• Less traffic on BAS• Simple integration into EEM• Flexibility

DATA CONCENTRATOR CONTROL PANEL (DCCP)

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METERING PROGRAM• Design /

Fabrication Process

• Components• Benefits– Flexibility– Expandability– Maintainability

DCCP

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METERING PROGRAM

• Building Number– 1085 – ELLT

• Service– DW – domestic water

• Unique Instrument Number– 01 – meter one of domestic water

meters• Instrument Type

– ME – mechanical type• Size (inches x 100)

– 0200 – 2 inch meter

UNIQUE IDENTIFIERS

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METERING PROGRAM

• Commissioning process:– Custom program– Validate Installation– Custom Spanning

DCCP

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EEM SYSTEM• Enterprise Energy Management System - What

is it?– Real-time performance management and

predictive analytics software• EEM System software– Data historian– Predictive analytics– Electronic billing

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EEM SYSTEM• Connected systems

to EEM– Power plant– Building Automation

System (BAS)– Data Concentrator

Control Panel (DCCP)– Legacy Meters

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EEM SYSTEM

Power Plant

BAS

Utility Meters

Legacy Meters

Interfaces

EEM Historian Web Server

PC application Web application

ARCHITECTURE

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EEM View Screen

kW

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EEM View Screen

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EEM View Screen

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EEM View Screen

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BENCHMARKING BUILDINGS

JNSN KCTR KNOY LAMB LWSN LYNN MACK MANN MCUT ME MGL MRGN MTHW0

5000

10000

15000

20000

25000

30000July 2014 EUI

Elec. Steam

CW

EUI (

Btu/

sf/m

onth

)

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BENCHMARKING BUILDINGS

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PROJECT IDENTIFICATION

7/1/2

013

7/11/2

013

7/21/2

013

7/31/2

013

8/10/2

013

8/20/2

013

8/30/2

013

9/9/2

013

9/19/2

013

9/29/2

013

10/9/2

013

10/19/2

013

10/29/2

013

11/8/2

013

11/18/2

013

11/28/2

013

12/8/2

013

12/18/2

013

12/28/2

013

1/7/2

014

1/17/2

014

1/27/2

014

2/6/2

014

2/16/2

014

2/26/2

014

3/8/2

014

3/18/2

014

3/28/2

014

4/7/2

014

4/17/2

014

4/27/2

014

5/7/2

014

5/17/2

014

5/27/2

014

6/6/2

014

6/16/2

014

6/26/2

014

7/6/2

014

7/16/2

014

7/26/2

0140

500

1000

1500

2000

2500

3000

0

5

10

15

20

25

30

35

40Mann Hall CW and SC UsageCW Ton-hrSC MMBtu

Chill

ed W

ater

(ton

-hrs

)

Stea

m (M

MBt

u)

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PROJECT IDENTIFICATION

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CONTACT

• Jason M. Kutch, P.E.– Mechanical Engineer; jmkutch@purdue.edu

• Malcolm E. Drane, P.E.– Electrical Engineer; mdrane@purdue.edu

QUESTIONS?