In Ukraine, there are 15 nuclear units in commercial operation at four power plants (Khmelnitsky, Rovno, South Ukraine and Zaporozhe) which are all operated by the state-owned company Energoatom. Among the units, there are 13 VVER-1000 and two VVER-440 reactors with a total capacity of 13,835 MWe. In the past, Ukraine purchased nuclear services and fuel exclusively from Russia, but recently it has started to buy fuel from US-headquartered Westinghouse as well.
