The state holding rescheduled the end of the construction due to problems with contractors.
Top manager Andrey Rappoport deceived Anatoly Chubais, but stumbled on trying to do the same with Igor Sechin.
The investigators are looking for the former RusHydro head's money at his consultants' places.
Evgeniy and Nikita will get their whack of prison.
Investigative Committee opened a criminal case against former RusHydro head Yevgeny Dod, suspecting him of theft of 73.2 million rubles. The protege of Anatoly Chubais and Igor Sechin spoiled relations with those who supported him, say the managers familiar with the situation.
Former Chairman of the Board of JSC RusHydro was accused of fraud.
The lower the cost of RusHydro, the higher the income of its chairman of the board.