Utility Metering at Purdue UTILITY METERING AT PURDUE ENTERPRISE ENERGY MANAGEMENT SYSTEM Jason Kutch, P.E. Malcolm Drane, P.E. AGENDA • • • • • • Organizational roles Comprehensive Energy Master Plan (CEMP) goals Metering program Enterprise Energy Management (EEM) System Benchmarking buildings Project identification 2 Malcolm Drane, Purdue University Jason Kutch, Purdue University 1 Utility Metering at Purdue ORGANIZATIONAL ROLES THE TEAM ENGINEERING HIGH VOLTAGE ARC FLASH LOW VOLTAGE BLDG CONTROLS UTILITIES DISTRIBUTION ADACENT PROJECTS PM & C BLDG OCCUPANTS BLDG DEPUTIES Maintenance 3 ORGANIZATIONAL ROLES • • • • • • • • 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 4 Malcolm Drane, Purdue University Jason Kutch, Purdue University 2 Utility Metering at Purdue 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 5 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 6 Malcolm Drane, Purdue University Jason Kutch, Purdue University 3 Utility Metering at Purdue 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 7 METERING PROGRAM 2012 2013 2014 2015 • $2.3M, 43 Buildings • Master plan developed • $2M • Approx. 40 buildings • $2M • Approx. 40 buildings • $1M • Over 140 buildings by 2015 Malcolm Drane, Purdue University Jason Kutch, Purdue University 4 Utility Metering at Purdue METERING PROGRAM ARCHITECTURE Supply & Return Temperature Domestic Water Main Chilled Water Domestic Water irrigation DCCP Power Ethernet Lighting Steam Condensate Temperature 9 METERING PROGRAM METER SELECTION CRITERIA • • • • High accuracy Low maintenance Low pressure drop Smart meter verification 10 Malcolm Drane, Purdue University Jason Kutch, Purdue University 5 Utility Metering at Purdue METERING PROGRAM MECHANICAL METERS • 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 11 METERING PROGRAM INSTALLATION GUIDELINES 12 Malcolm Drane, Purdue University Jason Kutch, Purdue University 6 Utility Metering at Purdue METERING PROGRAM INSTALLATION GUIDELINES 13 METERING PROGRAM DATA POINTS Chilled Water Flow Total Gallons Supply Temp Return Temp BTU/HR Tons Total TNHR Domestic Water Flow Total Gallons Daily Total Gallons Steam Condensate Flow Total Gallons Daily Total Gallons Temperature 14 Malcolm Drane, Purdue University Jason Kutch, Purdue University 7 Utility Metering at Purdue METERING PROGRAM ELECTRIC METERS 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 15 ELECTRIC METERS COMPONENTS • 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 16 Malcolm Drane, Purdue University Jason Kutch, Purdue University 8 Utility Metering at Purdue METERING PROGRAM DATA POINTS Electrical Voltage Current Power (kVA) Energy (kWh) Demand Power (kVA/kW) Peak Demand Power Power Factor 17 METERING PROGRAM DATA CONCENTRATOR CONTROL PANEL (DCCP) • • • • • • Centralized data No manual meter reads Ease of maintenance Less traffic on BAS Simple integration into EEM Flexibility 18 Malcolm Drane, Purdue University Jason Kutch, Purdue University 9 Utility Metering at Purdue METERING PROGRAM DCCP • Design / Fabrication Process • Components • Benefits – Flexibility – Expandability – Maintainability 19 METERING PROGRAM UNIQUE IDENTIFIERS • 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 20 Malcolm Drane, Purdue University Jason Kutch, Purdue University 10 Utility Metering at Purdue METERING PROGRAM DCCP • Commissioning process: – Custom program – Validate Installation – Custom Spanning 21 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 22 Malcolm Drane, Purdue University Jason Kutch, Purdue University 11 Utility Metering at Purdue EEM SYSTEM • Connected systems to EEM – Power plant – Building Automation System (BAS) – Data Concentrator Control Panel (DCCP) – Legacy Meters 23 EEM SYSTEM ARCHITECTURE Interfaces Power Plant BAS EEM Historian Web Server Utility Meters Legacy Meters PC application Web application 24 Malcolm Drane, Purdue University Jason Kutch, Purdue University 12 Utility Metering at Purdue kW EEM View Screen 25 EEM View Screen 26 Malcolm Drane, Purdue University Jason Kutch, Purdue University 13 Utility Metering at Purdue EEM View Screen 27 EEM View Screen 28 Malcolm Drane, Purdue University Jason Kutch, Purdue University 14 Utility Metering at Purdue BENCHMARKING BUILDINGS July 2014 EUI 30000 Elec. Steam CW 25000 EUI (Btu/sf/month) 20000 15000 10000 5000 0 JNSN KCTR KNOY LAMB LWSN LYNN MACK MANN MCUT ME MGL MRGN MTHW 29 BENCHMARKING BUILDINGS 30 Malcolm Drane, Purdue University Jason Kutch, Purdue University 15 Utility Metering at Purdue PROJECT IDENTIFICATION 3000 Mann Hall CW and SC Usage CW Ton-hr SC MMBtu 40 35 2500 30 25 1500 20 15 1000 Steam (MMBtu) Chilled Water (ton-hrs) 2000 10 500 5 0 0 31 PROJECT IDENTIFICATION 32 Malcolm Drane, Purdue University Jason Kutch, Purdue University 16 Utility Metering at Purdue CONTACT • Jason M. Kutch, P.E. – Mechanical Engineer; [email protected] • Malcolm E. Drane, P.E. – Electrical Engineer; [email protected] QUESTIONS? 33 Malcolm Drane, Purdue University Jason Kutch, Purdue University 17
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