2011 National Grid Energy Expo

Proprietary & Confidential1

Energy Management Systems2011 National Grid Energy Expo

April 7, 2011

Assis FloresAccount Executive assis.m.flores@jci.com

2011 National Grid Energy Expo2

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.

2011 National Grid Energy Expo33

The Building Real Lifecycle Cost

Minimum AcceptablePerformance

Des

ign

Ser

vice

Liv

e

Optimum “As Built”Peak Performance

IntendedPerformance

Time

Per

form

ance

Existing Practices

PerpetualCommissioning

First Occupancy

Auto Commission

Integrated Design, Build, Operate

Actual Service Live

2011 National Grid Energy Expo44

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 Expo55

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?

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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 & Confidential77 Johnson Controls7

Plant Optimization

For a

Greener World

2011 National Grid Energy Expo8

Chiller plants are one of the largest energy savings opportunitiesTypical commercial building energy usage profile

Total BuildingEnergy Use

Total HVAC Energy Use

Chiller Plant Energy Use

2011 National Grid Energy Expo9

Design decisions are the foundation of potential plant efficiency

Design Decisions

2011 National Grid Energy Expo10

Operating decisions can build upon the foundation of design decisions to enhance potential plant efficiency

Operating Decisions

Design Decisions

Measurement , Verification, Management

2011 National Grid Energy Expo11

Design and Operating DecisionsA plant with room to improve

Chiller Plant Efficiency Scale (kw/ton)

2011 National Grid Energy Expo12

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 Expo13

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 Expo14

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 OptimizationMVM software for persistent performance

2011 National Grid Energy Expo15

Design and Operating DecisionsA best-in-class plant

Chiller Plant Efficiency Scale (kw/ton)

2011 National Grid Energy Expo

Proprietary & Confidential1616 Johnson Controls16

EMSSystems

Case Studies of:

Chiller Plant Optimization

2011 National Grid Energy Expo17

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 Expo18

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 loadSolution Replaced plant with a new, all-VSD plant Installed 3 new 5000 ton York Titan chillers Johnson Controls / OptimumLOOPResult 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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Questions & Answers