2011 National Grid Energy Expo Proprietary & Confidential 1 Energy Management Systems 2011 National Grid Energy Expo April 7, 2011 Assis Flores Account Executive

2011 National Grid Energy Expo 2 What are the challenges? Efficiency has never been more important Operating budgets are under pressure Organizations are under pressure to reduce energy use. Energy costs are increasing Demand for energy is increasing. Plants must be maintained to stay efficient Plants must be retrofitted to get more efficient. According to the widely published IFMA Energy Efficiency Indicator : 65% are paying more attention to energy efficiency now than they did 1 year ago. 97% rate energy cost savings as the most important factor influencing their increased attention to energy efficiency. 75% believe significant legislation mandating energy efficiency and/or carbon reduction is likely within the next 2 years. According to the widely published IFMA Energy Efficiency Indicator : 65% are paying more attention to energy efficiency now than they did 1 year ago. 97% rate energy cost savings as the most important factor influencing their increased attention to energy efficiency. 75% believe significant legislation mandating energy efficiency and/or carbon reduction is likely within the next 2 years.

2011 National Grid Energy Expo 33 The Building Real Lifecycle Cost Minimum Acceptable Performance Design Service Live Optimum “As Built” Peak Performance Intended Performance Time Performance Existing Practices Perpetual Commissioning First Occupancy Auto Commission Integrated Design, Build, Operate Actual Service Live

2011 National Grid Energy Expo 44 Industry Energy Savings Benchmarks System Commissioning 20% Complex systems are running “Beta” configurations Real Time Feedback 5-7% Integrated reporting and billing Behavior change – “Turn the lights out” Visual feedback – Kiosks Advanced Controls 5-7% Whole system optimization

2011 National Grid Energy Expo 55 Industry Energy Savings Benchmarks - Maintenance Real-Time Monitoring 20% Continuously monitor faults/alarms Apply best practice Service level agreements No Truck Rolls Integrated Supply Chain 20% Automatically order parts Reduce on-site inventory

2011 National Grid Energy Expo What are the EMS strategies? 6 Basic Strategies Time Scheduling Optimum Start and Stop Night set-back Peak Demand Limiting Advanced Strategies Chiller and Boiler Plant Optimization Morning Warm-up/Cool-Down Night Purge Load Resetting CO2 Demand Ventilation

2011 National Grid Energy Expo Proprietary & Confidential 77Johnson Controls7 Plant Optimization For a Greener World

2011 National Grid Energy Expo 8 Chiller plants are one of the largest energy savings opportunities Typical commercial building energy usage profile Total Building Energy Use Total Building Energy Use Total HVAC Energy Use Chiller Plant Energy Use

2011 National Grid Energy Expo 9 Automation of system Application of components Selection of system components Design of system infrastructure Design decisions are the foundation of potential plant efficiency Design Decisions

2011 National Grid Energy Expo 10 Operating decisions can build upon the foundation of design decisions to enhance potential plant efficiency Maintenance Optimization Automation of system Application of components Selection of system components Design of system infrastructure Operating Decisions Design Decisions Measurement, Verification, Management

2011 National Grid Energy Expo 11 Design and Operating Decisions A plant with room to improve No tracking of data or reportingNo optimizationReactive maintenanceManual control of plantImproperly applied equipmentMinimum efficiency equipmentAll constant speed plant Chiller Plant Efficiency Scale (kw/ton)

2011 National Grid Energy Expo 12 A fully-featured EMS is a prerequisite to excellent plant efficiency. EMS makes an ideal platform for plant efficiency Beyond starting and stopping equipment. Intelligent equipment selection and operation; continuous adaptive tuning algorithms Standard protocols such as BACnet help assure info transparency and flow Information presented at the right level of detail, at the right place, at the right time. Information helps realize efficiency potential & sustain it

2011 National Grid Energy Expo 13 To maximize efficiency, plants should be designed and operated holistically Pumps & Motors Variable Speed Drives But, efficient and capable components can get you only so far. Cooling Towers Chillers Automation & Optimization

2011 National Grid Energy Expo 14 Prevent system degradation with performance measurement, verification and management service  Web-based for 24/7 access to real-time and historical performance information  Data presented in easy-to-read graphs, charts and plant overview display  Operators have immediate visibility to inefficient system operation.  Analysis capabilities enable fast system fault diagnosis  Simplified reporting with at-a-glance energy dashboard and reports Central Plant Optimization MVM software for persistent performance

2011 National Grid Energy Expo 15 Design and Operating Decisions A best-in-class plant Real-time measurement & dashboard reporting; fault analysis Full optimization programPredictive maintenanceDemand-based relational controlBest-in-class equipment applicationHigh efficiency equipmentAll variable speed plant Chiller Plant Efficiency Scale (kw/ton)

2011 National Grid Energy Expo Proprietary & Confidential 16 Johnson Controls16 EMS Systems Case Studies of: Chiller Plant Optimization

2011 National Grid Energy Expo 17 Energy Case Study: Sotheby’s Building Situation  470,000 sq. ft. facility in New York City  Houses rare antiques & priceless art  Needed a reliable, efficient chiller plant Solution  VSD retrofits on two 700-ton York centrifugal chillers, cooling tower fans, condenser water pumps and chilled water pumps.  Implemented Central Plant Optimization. Result  Qualified for incentives: $167,000  Est. first year savings: $201,000  To-date improved kW/ton: 30%  Simple payback for the entire project: 3.6 yrs

2011 National Grid Energy Expo 18 Johnson Controls/Optimum Energy Case Study: University of Texas at Austin Situation  District Cooling station serving 135 buildings (17 million sq ft )  Total campus load:145 million ton-hours / year  Rising energy prices, increasing cooling load Solution  Replaced plant with a new, all-VSD plant  Installed 3 new 5000 ton York Titan chillers  Johnson Controls / OptimumLOOP Result  Plant efficiency: 0.33 to.87 kW/ton, depending on wet bulb and campus load  Estimated first year savings: 5 million kWh  Simple payback for LOOP install: 12 months

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