Chief executive officer Datuk Seri Che Khalib Mohamad Noh says this is “one of the green efforts TNB is aggressively pursuing.”

TNB was not “seriously looking into” hydro plants as an alternative energy source from the conventional gas and coal plants, Che Khalid says.

“So we started to rehabilitate the mini hydro sites over the last three years,” he says.

TNB began maintaining the mini hydro plants after taking over from Malaysian firm Projass Engineering three years ago, a spokeswoman from TNB tells Recharge.

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