One of the effective ways to do so is to repower the current cycle. Since it is impossible to get
legal permission to establish new plants from the environment conservation organizations in many
countries and some particular urban areas, repowering the previous power plants can be a more
effective choice. It can also be a fact that repowering is the best method to replace boilers in older
power plants. Repowering includes adding GT(s) to an existing SC to increase generation as well as
efficiency, which can be done to follow several purposes at the same time [36]: