Gholamreza Khoshkholq said once fully activated, the country's power generation capacity will hit 75,000 megawatts.
He said Seymareh dam is expected to become operational by the end of the current year, along with Mahshahr and Behbahan dams which are equipped with combined cycle power plants.
The official stressed there will be no worries as to the country's power supply during summer.