Pampa Energ�a is one of Argentina's largest fully integrated electricity companies. Through subsidiaries or co-controlled companies, it generates more than 7% of the total electricity in Argentina, transmits some 95% of the country's electricity through transmission lines owned and operated by subsidiary Transener, and distributes electricity to more than 2.6 million residential and commercial customers through subsidiary Empresa Distribuidora y Comercializadora Norte (Edenor), the largest electricity distributor in Argentina. Pampa Energ�a maintains fossil fuel, thermal, and hydroelectric generation operations. Its distribution, transmission, and hydroelectric activities are regulated by Argentina's government.