Natsionalna Elektricheska Kompania EAD (NEK) (Bulgarian: Национална електрическа компания ЕАД) is a single-owned joint-stock electric company headquartered in Sofia, Bulgaria.

The main company's activities are generation and trade of electrical energy.

NEK is the owner of 31 hydro and pumped storage power plants with a total installed capacity of 2737 MW.

NEK, through its branch Dams and Cascades, manages 40 dams and the total capacity of the storage reservoirs operated by NEK represents 50.1% of the total controlled water resources of the country.

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