Austin  Energy’s  District  Cooling  Program  

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ERCOT  Monthly  Peak  Demand  

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Austin  Energy’s  Thermal  Utility  

An  underground  network  of  pipes  providing  chilled  water  to  meet  cooling    requirements  of                  multiple  buildings.  

Aggregation  of  loads  enables  superior  efficiencies,  reliability  and  quality  when  compared  to  stand  alone  systems.  

Thermal  storage  element  enables  peak  electrical  demand  management.  

On-­‐Site  Energy  Resources  Plant  Locations  

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Downtown  District  Cooling  Peak  Demand  Shift  

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Downtown  Piping  Map  

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Benefits  

To  Customer:      Eliminates  capital  costs,  reclaims  space    Financially  attractive  alternative  to  stand  alone  system    N+1  provides  extraordinary  reliability    Simplicity  –  low  risk    

 To  Austin  Energy,  our  rate  payers  and  the  City  of  Austin:      Complements  economic  development    New  revenue  stream  –  long  term  agreements    Thermal  storage  shifts  electrical  demand  to  off-­‐peak  

 ERCOT  market  savings    ERCOT  regulatory  savings  

 Supports  environmental  stewardship  

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Mueller  Energy  Center  Combined  Heat  and  Power  

   Provides  electricity,  chilled  water  and  steam  to  Dell  Children’s  Medical  Center    

   Life  safety  “emergency”  power    

   Provides  chilled  water  to  the  larger  urban  campus  of  Mueller  Development  

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Summary  

District  Cooling  is  one  of  Austin  Energy’s  DSM  programs    114  MW/hr;  up  to  22  MW  and  still  growing  Dispatchable  Available  every  day  year  after  year  Highly  reliable  Positive  NPV  Imagine  Austin  

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