Esmaeil Mahsouli also said the price of electricity exports to Iraq has not been changed, Fars News Agency reported.
"The price of electricity export is similar to the previous price," he said.
Mahsouli noted that the deal has been extended for another year.
Last month, a provincial official said Iran's southwestern province of Khuzestan exported over 3.5 billion kilowatts of electricity to Iraq in the seven months ending October 22, which marks a 35-percent growth compared with last year's.
“About 3.5 billion KW of electricity were supplied to Iraq through two 400-kilowatt electricity transmission lines,” Managing Director of Khuzestan Electricity Company Mahmoud Janqorban said at the time.
Janqorban added that Khuzestan's electricity exports to Iraq increased 35 percent in this period, which was 2.7 billion KW last year.
Khuzestan province currently produces one-seventh of Iran’s electricity.
Iran and Iraq have enjoyed growing ties ever since the overthrow of the former Iraqi dictator, Saddam Hussein, during the 2003 US invasion of the Muslim country.