Rosseti South (formerly known as MRSC of South) is the main operator providing services for electricity transmission and network connection. The company is responsible for transporting electrical energy through networks of 110 kV and below across the territory of four federal subjects: Rostov, Astrakhan, and Volgograd regions, and the Republic of Kalmykia covering an area of more than 334 thousand square kilometers (almost 2% of Russia's territory) with a population of around 8.1 million people.