AES Gener S.A. is the largest thermal generator and second largest electricity generator in Chile. The firm owns and operates a diverse portfolio of power plants in the country, including facilities operating on coal, gas, diesel, biomass and water. AES Gener serves the country's SIC grid through four run-of-the-river hydroelectric power plants, one coal-fired thermoelectric power plant, four diesel-fueled turbogas power plants, two cogeneration power plants and a combined-cycle gas turbine. It also serves the northern SING grid through its subsidiaries Norgener S.A., Empresa Eléctrica Angamos S.A. and Termoandes S.A. The firm currently operates in Argentina and Colombia through subisidiaries Termoandes S.A. and AES Chivor & Cia S.C.A. E.S.P. AES Gener is controlled by US power company AES Corp.