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__    __     ___      _  __    _____             
\ \\ / //   / _ \\   | |/ //  |  ___||   ____    
 \ \/ //   / //\ \\  | ' //   | ||__    |    \\  
  \  //   |  ___  || | . \\   | ||__    | [] ||  
   \//    |_||  |_|| |_|\_\\  |_____||  |  __//  
    `     `-`   `-`  `-` --`  `-----`   |_|`-`   
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Text this: Determination of energy storage capacity requirement for large wind farm or photovoltaic system