United Technologies Corporation

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2 United Technologies Corporation Fortune 50 corporation $58.2B in annual sales in 2011 ~60% of sales are in building technologies UTC Power UTC Fire & Security Research Center Hamilton Sundstrand 2

3 UTC Power About Us Fuel cell technology leader since 1958 ~ 450 employees 791 U.S. patents issued 263 additional U.S. patents t pending Global leader in efficient, reliable, and sustainable fuel cell solutions Stationary Fuel Cells Transportation Space & Defense 3

4 World Class Manufacturing Facility Automated cell stack assembly/robotics Advanced cell stack test stands Rail/turntable assembly line to rapidly move powerplants eliminating cranes New final test stands for completed power plant 4

5 UTC Power Control Center 4 24/7 powerplant monitoring Reducing mean time to repair Increasing customer uptime Reactive to shutdowns & alarms Proactive predictive modeling & action (PHM) Spare parts orders, retrofit tracking, consumables ordering Technician & customer communication hub 5

6 UTC Power Achieving 10 year Cell Stack Durability in Phosphoric Acid Fuel Cells 6

7 PureCell Model 400 Solution Unprecedented durability and total efficiency 7

8 PureCell Model 400 Solution Key Features Output and Efficiency 400 kw net electric output t 42% electrical efficiency MMBtu/hr heat output (455 kw) 1, Up to 90% system efficiency 1 1 st year average 2 Through use of multiple Model 400 systems 3 California Air Resources Board 2007 emissions standard Design Characteristics 10-year stack life Grid independent capability Load following capability Natural gas fuel source Operates in water balance Multi-megawatt capable 2 Certified to FC-1, UL, CARB

9 Performance vs Time Model 400 Average Performance vs Years Elect trical Efficie ency (LHV), % 45% 40% 35% 30% 25% 20% 15% 10% 5% Fuel Input Heat Output Electrical Efficiency 400 kw net electrical output maintained Fuel Input (HHV), Hea at Ouput - MMBTU/hr 0% Year 9

10 PureCell Model 400 Solution Fleet Performance (as of 4/13/12) Customer Fleet Hours (thousands) 3 Month Rolling Fleet Availability (%) 10

11 Fuel Cell Durability Failure modes Failure Advanced cell designs for acid management Acid loss Non plugging cooler designs Cooler plugging Lower voltage limit Best in class alloy catalysts Steady state decay System mitigation and best in class catalyst supports Start stop decay Field experience & extensive verification is crucial to optimize designs Durability improvements mainly driven by a fundamentals-based modeling and post tear-down analysis Ammonia scrubber or advanced FPS catalyst Contamination (e.g., NH 3, etc) 11

12 Fuel Cell Durability Advanced d cell designs for acid management Cell active area thermal profile optimized for improved performance Cooler Coolant out (Steam for reformer & HEX) Condensation Zone Coolant in (Water) Cell Thermal Profile Cell exit (condensation zone) optimized to minimize acid loss to achieving 10-year life

13 Acid life improvements % of remainin ng acid Model predictions and post test acid inventory data post 43 kh off-grid operation) 1 0,95 0,9 0,85 0,8 0,75 0,7 0, , Cell number Air ex xit tempera ature Off-Grid Fuel Cell Installation (Central Park, New York) Fundamentals of acid movement within a cell and loss of acid through evaporation and component absorption Key enablers for product improvements and fleet monitoring 13

14 Steady State Decay Best in class alloy catalysts t Analyzing field operated components demonstrates agglomeration PC25D Cathode CSA507 Cathode CSA412 Cathode Frequency More Particle Size (nm) Frequency More Particle Size (nm) Frequency More Particle Size (nm) 0 hours 5k hours 43k hours ECA: 50 m 2 /g ECA: 20 m 2 /g ECA: 6.5 m 2 /g Average diameter: 4.5nm Average diameter: 11.7nm Average diameter: 19.9nm 14

15 Cell Stack Improvements ration Power Ope time kwh Stack life at rated and constant power improved by 2X with new in-cell acid management technology 0 Peak P PureCell Model 200 PureCell Model 400 ance ve performa ecay rates 0,6 Performance decay with new and 0,5 improved catalyst 4X lower and 0,4 03 0,3 with ih1/3l less Platinum Relativ de 1 0,9 0,8 0,7 0,2 0,1 0 PureCell Model 200 PureCell Model

16 Best-in-class Durability 10 years Cell Stack Design Mohegan Sun Performance Design Characteristics PureCell Model 200 installed at Mohegan Sun Casino in Uncasville, CT has achieved 84,500 hrs of operation with greater than 95% availability PureCell system the lowest decay rate amongst all fuel cell technologies (~0.7 vs µv/h for SOFC and MCFC) 16

17 Best-In-Class CHP Capability 1 Fuel Processor 2 Fuel Cell Stack 3 Power Conditioner Converts natural gas fuel to hydrogen Generates DC power from hydrogen and air Converts DC power to high-quality AC power Electric Output: 400 kw, 480V, 60 Hz 400 kw, 400V, 50 Hz Fuel Input: Natural gas 3.2 MMBtu/hr 3.6MMBtu/hr (950 kw) LHV (1054 kw) HHV Internal Heat Exchanger Provides Either: F ( C) OR F & F ( C & C) 17

18 Heat Recovery Applications Natural Gas (LHV) Electricity Continuous Duty Grid-Connect Power Reliable Grid-Independent Power Heat Best Application Other Applications High-Grade or Absorption Chiller Low-Grade Cooling Central hydronic (hot water) heating systems Refrigeration sub-cooling Domestic hot water Process water (<140 F) Hot water coils in large RTUs Desiccant regeneration Steam boiler pre-heat Chilled water coils in RTUs Central chilled water systems Pool heating Radiant Floor Snow melt systems Water source H/P New fan/coil units * Nominal values given 18

19 Electric Operating Modes Grid-Connected Only kw net power output UL 1741 certified, CEC listed Grid intertie relay input for disconnecting from utility to prevent islanding Electric load-following capable 10 kw/sec up transient 20 kw/sec down transient 19

20 Electric Operating Modes Dual Mode (Grid-Connected with Grid-Independent Backup) 350kW max net power output Max. 50 kw step loads every 5 sec 10kW/sec transient response 20

21 PureCell Model 400 Solution E Examples l off Best B t Fit: Fit Facilities F iliti with ith 24/7 Power P and d Heating H ti Demand D d Supermarkets Bottling Hospitals Mixed Use Hotels Bio-tech/Industrial Educational Institutions Utilities 21

22 PureCell Model 400 Solution Diverse Customer Base HARTFORD PUBLIC SAFETY COMPLEX 22

23 Typical Site Layout 10-ft Clearance Required for Overhaul Access Site Dimensions Approx. 40 ft W x 40 ft L 480V Grid -Connect 480V Grid -Independent PureCell Model 400 Communications and Optional External Control Wiring N 2 Supply Natural Gas Supply Low Grade High Grade Heat Recovery Piping City Water Plan View 23

24 PureCell Model 400 Solution Coca-Cola Refreshments USA (East Hartford, CT and Elmsford, NY) East Hartford, CT Installed December 2011 Elmsford, NY Installed October 2010 Repeat customer, multiple l locations Each site features two PureCell systems generating a total of 800 kw of electric power Thermal energy is utilized in bottling operations Overall system efficiency ~70% through combined heat and power (CHP) Coca-Cola Cola is focusing on implementing green innovations and initiatives to reduce our Company's overall environmental footprint at each step of our operations. Use of these fuel cell systems at our Elmsford facility is one way in which we are working to achieve our 2020 environmental goals. John Lacey Sales Center Manager Coca-Cola Refreshments USA 24

25 PureCell Model 400 Solution St. Francis Hospital (Hartford, CT) Thermal output t will offset fuel used by central steam plant and domestic hot water Grid independent assuring standby power during an emergency Approximately 950 metric tons of CO 2 and 2 metric tons of NOx emissions will be avoided ~ 3.8 million gallons of water will be saved annually 25

26 PureCell Model 400 Solution 360 State Street (New Haven, CT) Installed August 2010 Large scale mixed-use residential 700,000 square feet, 500 units Satisfies nearly 100% of building s electrical needs Provides thermal energy for space heating, domestic hot water and swimming pool LEED Platinum building In an age when there s such an importance placed on the environmental impact of energy use, there s nothing that comes close to the environmental superiority of fuel cells. Architect Bruce Becker President, Becker + Becker 26

27 PureCell Model 400 Solution World Trade Center (New York City, NY) World Trade Center, New York City ( Freedom Tower ) 12 UTC Power 400 kw fuel cells (4.8 megawatt) 3 power plants per tower, initial nine (9) delivered in 2010 We are committed to helping make clean energy initiatives at the new World Trade Center site a reality. Roger B. Kelley President and CEO NYPA 27

28 PureCell Model 400 Solution GS Power / Samsung (Anyang, South Korea) With the prolonged effects of high and unstable oil prices on businesses and heightened environmental concerns and regulations worldwide, I am certain more businesses will show interest in renewable energy and other clean energy initiatives such as fuel cells. Robin Park President and Chief Executive Officer Samsung Everland One of the largest fuel cell installations in the world 4.8 MW installation ti (12 UTC Power 400 kw fuel cell systems) Satisfies 5% of Anyang s power needs 100% utilization of thermal energy (district heating) 28

29 Fuel Cells: Power Through the Storm PureCell systems keep CT businesses and shelters running through prolonged power outages resulting from the October 2011 winter storm SOUTH WINDSOR HIGH SCHOOL Served as community shelter providing hot meals and showers to thousands. CT JUVENILE TRAINING FACILITY WHOLE FOODS MARKET Facility was able to operate continuously while the grid was down for days. Fuel cell powered critical refrigeration loads, preventing costly food spoilage. Ref. CL&P Connecticut Outage Map for October

30 Supermarket Open During Blackout Reliable Power During Grid Outages (San Diego Albertsons) Albertsons supermarket operates throughout September 2011 San Diego power outage Was one of the only retail stores in the valley operating during the crisis Despite the sweltering heat outside, Albertson s s perishable inventory protected thanks to the continued operation of their fuel cell When you drive down the neighborhood and the only thing lit is Albertsons, it attracts people, -Rick Crandall, Director of Sustainability, SuperValu Inc. 30

31 THANK YOU! Amit Kumar, Ph.D. Manager, Business Development & Strategic Planning Ph: com 31