Electricity System Operator (ESO) EAD Employee Directory
Oil and GasSofia-grad, Bulgaria201-500 Employees
ESO EAD is the Bulgarian operator responsible for the common operational planning, coordination, and control of the national power system and its parallel synchronous operation with neighboring grids. It oversees transmission grid operation and maintenance, auxiliary network services, and energy-sector repair work, and it manages cross-border power transit and the electricity market. The organization serves electricity market participants and grid users by ensuring reliable system operation and orderly market functioning. Based in Sofia, Bulgaria, the company was founded in 2007 as a subsidiary of the National Electricity Company and was unbundled in 2014 to align with EU liberalization requirements; it is certified as an Independent Transmission Operator. It operates as a key partner in the Balkan region, coordinating with regional and neighboring systems to improve transmission efficiency and asset management. In 2024, ESO partnered with Capgemini Consulting to design and prepare a first-of-its-kind balancing service for demand-side participation.