Energy Company of Ukraine
Energy Company of Ukraine (Ukrainian: НАК Енергетична компанія України) is a dissolved state-owned holding company for electricity assets  in Ukraine under Ministry of Fuel and Energy. On 4 September 2014, the Government of Ukraine decided to dissolve the company. The process should be carried out within five months.The company's computers (also) were inaccessible during the July 2017 cyberattacks on Ukraine; but electricity supply continued to operate without using computers.
Energy Company of Ukraine (Ukrainian: НАК Енергетична компанія України) is a dissolved state-owned holding company for electricity assets  in Ukraine under Ministry of Fuel and Energy.  On 4 September 2014, the Government of Ukraine decided to dissolve the company. The process should be carried out within five months.The company's computers (also) were inaccessible during the July 2017 cyberattacks on Ukraine; but electricity supply continued to operate without using computers.

Operations
Along with other state companies like Energoatom and Ukrenerho, Energy Company of Ukraine has produced electricity for Ukraine and abroad. Until 2010, the company had total installed power generation capacities of 29,6697 MW which corresponded to 56% of installed capacity of Ukrainian power stations.
Energy Company of Ukraine has operated thermal power stations through at least six regional subsidiaries such as Dniproenergo, Zakhidenergo, Centrenergo, Kyivenergo, Skhidenergo; and hydro power stations through Ukrhydroenergo; energy supplying companies also exist in each oblast such as Dniprooblenerho, Vinnytsiaoblenerho and others. A smaller state company "Ukrinterenergo", established in January 1993, operates only one plant named Kaluska CHP. Unlike most of Ukraine it is part of the IPS/UPS transmission grid, so Ukrinterenergo created a power generating island named "Burshtyn TES" that is synchronized with the ENTSO-E transmission grid. The island includes some companies of the Zakhidenergo.

Former subsidiaries
List of subsidiaries and percentage of ownership by Energy Company of Ukraine:

Hydro-power generation
Ukrhydroenergo - 100.0%
Kyiv Pumped Storage Power Station (Pumped-storage hydroelectricity)
Kyiv HES (Hydro power plant)
Kaniv HES
Kaniv Pumped Storage Power Station
Kremenchuk HES
Middle Dnieper Hydroelectric Power Plant
Dnieper HES
Kakhovka HES
Dniester HES
Kyiv HAES
Administration in construction of Dniester HAES
Dniester Pumped Storage Power Station - 87.4%
Dniester-2 Hydroelectric Station (Dniester-2 HES])

Thermal power generation
Centrenergo - 78.3%
Vuhlehirsk TES
Zmiiv TES
Trypillya TES
Remenergo, maintenance company
Zakhidenergo - 70.1%
Burshtyn TES
Dobrotvir TES
Ladyzhyn TES
Dniproenergo - 50.0%+1
Transdnipro TES
Kryvyi Rih TES
Zaporizhia TES
supporting companies
Dniproenergoremont
Dniproenergospecremont
Dniproenergonaladka
Dniproenergoavtotrans
VOKhR
Kyivenergo - 25%
Thermal cogenerating power station 5
Thermal cogenerating power station 6
DTEK Skhidenergo - 0%
Zuyiv TES
Kurakhove TES
Luhansk TES
Donbasenergo - 25%+1 (Enerhoinvest Holding owns 60.77%)
Starobeshiv TES
Slovyansk TES
Shteriv TES (former station redesigned into maintenance division of Donbasenerho)

Other thermal power generation
Ukrhazovydobuvannia (Naftogaz Ukrainy)
Lokachi TES

Power distribution
Some power distributing companies have capabilities of power generation such as Zakarpattiaoblenerho.

Vinnytsiaoblenerho - 75.0%
Volynoblenerho - 75.0%
Zakarpattiaoblenerho - 75.0%
Tereblya-Rikska HES
Onokivska HES
Uzhhorod HES
Dniprooblenerho - 75.0%
Khmelnytskoblenerho - 70.1%
Krymenergo - 70.0%
Mykolaivoblenergo - 70.0%
Chernivtsioblenergo - 70.0%
Donetskoblenergo - 65.1%
Myronivsky TES
Kharkivoblenergo - 65.0%
Zaporizhiaoblenergo - 60.3%
Luhanskoblenergo - 60.1%
Ternopiloblenergo - 51.0%
Cherkasyoblenergo - 46.0%

See also
Energoatom
Naftogaz Ukrainy
List of power stations in Ukraine

References
External links
Official website
Zanuda, A. Azarov posts power companies for sale (Азаров виставляє енергокомпанії на продаж). BBC Ukrainian. April 14, 2011.