Enel Generación Perú commercializes capacity and electric energy in the Peruvian market, complying with all the specifications of the Technical Norm for the Quality of Electric Services, being tension levels, frequency and the periods of unavailability of the service the most important ones.
The gross installed capacity of the company is 1,590 MW, (of the total capacity of the National Electric Interconnected System - henceforth “SEIN”), where 44% was hydro gen-eration and 56% thermal generation, considering Yanango (43 MW) and Chimay (155 MW) power plants, which since May 31, 2009 split off and became part of Chinango S.A.C.
Enel Generación Perú equity participation as on December 31, 2018 was the following: 83.6% is owned by to Enel Perú S.A.C. (of which Enel Américas owns 100% shareholding), Prima AFP S.A. holds 5.96% shareholding and other shareholders the remaining 10.44%.
The company owns seven hydroelectric power plants; five are located in Lima and two in Junín. Worth is mentioning that Callahuanca hydro power plant is under reconstruction and out of commercial operation since June 15, 2017, due to the damages caused by the flooding that happened in March caused by “El Niño Costero” phenomena.
The hydroelectric power plants in Lima are located in the Rímac River basin. Huinco Power Plant is located in Santa Eulalia River basin, a tributary of Rímac River. Its installed capacity amounts to 278 MW and Matucana Power Plant is located in Rímac River basin, whose installed capacity is 137 MW. These rivers are diverted through tunnels and channels to the town of Barba Blanca, where Callahuanca Power Plant is located, whose installed capacity is 84 MW. The power plants Moyopampa (69 MW) and Huampaní (31 MW) are located downstream. The total capacity of these five power plants is 515 MW (without considering Calla-huanca).
The company also owns 21 lagoons with installed capacity of 282,35 hm3, which allows the regulation of the flow for energy generation and for the water supply to the city of Lima.
The two hydroelectric Yanango power plants are located in the department of Junín. Installed capacity of Yanango is 43 MW, which uses the flows of Tarma River; and Chimay, with 158 MW installed capacity, which uses the flows of Tulumayo River. Their total installed capacity amounts to 201 MW. These two power plants became part of the sub-sidiary Chinango, as a consequence or a simple corporate reorganization process.
Likewise, Enel Generación Perú owns two thermal power plants, Santa Rosa and Ventanilla, whose installed capacity is 403 MW and 472 MW, respectively. The first is located in the Cercado de Lima, and is comprised by UTI units with 94MW, TG7 of 122 MW and TG8 of 187 MW. The second power plant is located in the Callao province, and compris-es three generation units: two gas turbines and one steam turbine that constitute a combined cycle. Ventanilla Thermal power plant was the first combined cycle installed in the SEIN and currently is one of the four combined cycles of the system.
Thermal power plants use natural gas from Camisea as their main fuel, and the alternative fuel is diesel 2.
Total generation of Enel Generación Perú reached 7,510 GWh in 2018, 9,1% higher than the previous year. Energy sales totaled 9,997 GWh as of December 2018, represent-ing 1.8% increase over 2017.