Zakhidenergo (Ukrainian: «Західенерго») is a major electric and thermal energy producing companies in western Ukraine.

The island, which forms the Burshtyn TES together with the adjacent network, covers an area of 27,000 km2 with a population of about 3 million people.

In terms of electricity production, PJSC DTEK Zahidenergo occupies one of the leading positions among thermal energy generating companies.

The beginning of large-scale development of electric power in Western Ukraine was the construction of Dobrotvirska TES.

OJSC "Zakhidenergo" was established in 1995, in accordance with the Presidential Decree of 04.04.95 № 282 "On structural adjustment in the power complex of Ukraine", on the basis of thermal power plants BEO "Lvivenergo" – Burshtyn and Dobrotvirska TES, as well as Ladyzhyn TES, which was a part of BEO "Vinnytsiaenergo".