KYIV, Aug 8 - Energoatom has to repair four out of nine nuclear power units located in the territory controlled by Ukraine by the beginning of the autumn-winter period, one of which is planned to be taken out of repair at the end of August, said company president Petro Kotin.

"All power units have passed the stage of preparation for repairs, five power units have been repaired and the fifth has recently been returned to the power grid, so now we have four power units under repair, one of them will be decommissioned at the end of the month, and the remaining three power units will gradually be put into operation over two months," Kotin told reporters on Monday.