Ukraine expects to start construction work on four new nuclear power reactors this summer or autumn, Energy Minister Herman Halushchenko told Reuters, as the country seeks to compensate for lost energy capacity due to the war with Russia. Two of the units -- which include reactors and related equipment -- will be based on Russian-made equipment that Ukraine wants to import from Bulgaria, while the other two will use Western technology from power equipment maker Westinghouse. All four reactors will be built at the Khmelnytskiy nuclear power plant in the west of Ukraine, Halushchenko added.