Iran has launched the construction of world's largest concrete dam in country's Lorestan province, IRIB News reported.
Iran's president Mahmoud Ahmadinejad arrived in Lorestan early morning to participate at the ceremony marking the beginning of construction.
The dam, which was given the name "Bakhtiari Dam" is world's biggest arched concrete dam, situated 80 km south-east of Khorramabad city, in the Zagros mountains.
The dam is planned to have height of 325 meters and the crest length of 509 meters.
According to pre-construction plans, the dam will have six 250 MW turbines.
There are electric turbines inside a dam. When water from the dam passes through, the turbines spin. This creates electricity.
The "Bakhtiari Dam" will have production capacity of 1500 MW, and its annual production will be about 3000 GWT.