Enel Generacion Chile SA, formerly Empresa Nacional De Electricidad SA, is a Chile-based company engaged in the business of electricity generation. The Company operates in Chile. The Company owns and operates a total of approximately 111-generation units in Chile both directly and through its subsidiaries, Pehuenche, Celta and GasAtacama. Of these generation units, approximately 38 are hydroelectric, with a total installed capacity of over 3,470 megawatts. There are approximately 22 thermal generation units that operate with gas, coal or oil with a total installed capacity of over 2,808 megawatts. There are over 51 wind powered generation units with an aggregate installed capacity of approximately 78 megawatts. The Company's subsidiaries include Compania Electrica San Isidro S.A. (San Isidro), Compania Electrica Tarapaca S.A. (Celta), Empresa Electrica Pehuenche S.A. (Pehuenche) and GasAtacama S.A (GasAtacama). It is controlled by Enel Chile SA.