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  _____     _____    _    _      ___     _____    
 /  ___||  |  ___|| | || | ||   / _ \\  |  __ \\  
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 \____//   |_____||  \____//  |_||  |_|||_____//  
  `---`    `-----`    `---`   `-`   `-`  -----`

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Text this: Flywheels in renewable energy systems: a review of recent developments and future directions