"Rosatom said that the construction and installation work phase was started on March 14. Representatives of the Russian general contractor participated in the official ceremony. In November 2014, Nuclear Power Production and Development Company of Iran (NPPD) and Russia's Atomstroiexport signed two contracts for the construction of units 2, 3 of Bushehr-2. The total capacity of two units of WWER-1000 (Water-Water Energetic Reactor) will be 2,100 megawatt. Back in September 2016, Iran and Russia started the construction of the second unit of the Bushehr nuclear power plant in a ceremony attended by the head of the country's Atomic Energy Agency (AEOI) Ali Akbar Salehi, Iranian First Vice-President Eshaq Jahangiri, and Sergei Kiriyenko, head of Russian state nuclear energy corporation Rosatom. The second unit is expected to take 9 years to complete (October 2024). A third unit will also begin to be built 18 months later after that (April 2026)." (Tasnim News (Iran), "Russia Says Starts Construction Work On Iran's Bushehr-2 Power Plant," 3/16/2017).
"Iran will assume full control over the Bushehr atomic power station Russia built at the end of December, Russian state nuclear company Rosatom Corp. said. Russia will continue to help Iran operate the country’s first nuclear plant for three years because of a lack of trained Iranian technicians, Rosatom said in a statement." (Bloomberg, "Iran to Take Control Over Nuclear Plant From Russia in December," 9/5/2012)
"Thirty-six years after construction began under the shah, Iran finally opened its first nuclear power plant at a ceremony on Saturday. Attended by senior officials from Iran and Russia, which helped build the plant, the ceremony marked the beginning of the transfer of low-enriched uranium fuel rods from a storage site into the plant. Officials of both countries said that Saturday's events signified the opening, not the startup, of the plant near Bushehr, in southern Iran." (The New York Times, “Iran Opens Its First Nuclear Power Plant,” 08/21/10)
“Technicians began the process of moving uranium fuel from a storage area to the reactor at Iran's first nuclear power plant on Saturday, the spokesman for Russia's state-run nuclear corporation said. The beginning of the first stage of the physical start-up has taken place," Rosatom spokesman Sergei Novikov said at the Russian-built plant near Bushehr in southern Iran.” (Reuters Africa, “Start-up of Iran Bushehr plant has begun- Rosatom,” 08/21/10)