Korea Electric Power Corporation, an integrated electric utility company, engages in the generation, transmission, and distribution of electricity in South Korea and internationally. It operates through Transmission and Distribution, Nuclear Power Generation, Thermal Power Generation, and Others segments. The company generates power from nuclear, coal, oil, liquefied natural gas, internal combustion, combined-cycle, integrated gasification combined cycle, hydro, wind, solar, fuel cell, biogas, and other sources. As of December 31, 2024, the company had a total of 848 generation units, including nuclear, thermal, hydroelectric, and internal combustion units with an installed generation capacity of 85,424 megawatts; transmission system consisted of 35,856 circuit kilometers of lines of 765 kilovolts and others, including high-voltage direct current lines, as well as 925 substations with an installed transformer capacity of 368,758 megavolt-amperes; and distribution system included 148,176 megavolt-amperes of transformer capacity and 10,251,345 units of support with a total line length of 547,850 circuit kilometers.