Hydroelectric Power Project Santa Teresa – Ccollpani Grande

Santa Teresa - Ccollpani Grande Hydroelectric Plant’s Loading Chamber

Control Center and GIS substation

Machine House Level 1

Discharge Tunnel and line N°2049’s gateway

Water Treatment Plant. Santa Teresa Campsite



The Santa Teresa - Ccollpani Grande Hydroelectric Plant, which started commercial operations on September 1st, 2015, is located in the Machupicchu district, Urubamba province, Cusco.

The water is harnessed after going through the discharge tunnel of the first two phases of the Machupicchu Hydroelectric Plant. This process uses the plant’s turbine flow, which was submitted to a prior cleaning treatment in the sand filters at the dam located on kilometer 107 at Aguas Calientes.

The flow required for the operation of the two groups of the Santa Teresa - Ccollpani Grande Hydroelectric Plant is provided by EGEMSA, through the operation of the Machupicchu Hydroelectric Plant and the availability of the Vilcanota river for harnessing it. This happens in its dam at kilometer 107 of the Cusco-Machu Picchu railway line, ensuring enviromental integrity, while the rest is sent through the penstock. The flow required for the operation at nominal output is 61m3 per second. 

The Santa Teresa - Ccollpani Grande Hydroelectric Plant has a 220 kV GIS simple type bar, for which it has a bank of single-phase transformers (high side), where it connects to the power cables that come from the two Francis turbines. 

A 220 kV transmission line, line L-2049 that connects to the Suriray substation, dispatches power to the National Grid. Additionally, it has a SE 60/10 kV for supplying energy to the Luz del Sur camps on the outskirts of the plant and to the population of Santa Teresa via a 22.9 kV line. 

The operation of the Santa Teresa - Ccollpani Grande Hydroelectric Plant will be carried out remotely from the Luz del Sur Control Center located in Lima. The personnel in the Santa Teresa - Ccollpani Grande Hydroelectric Plant is devoted exclusively to maintenance and support to local operation in the Power House and Intake Chamber. Currently, production control is carried out from the Command Center at the plant. 

During the rainy season, plant production is at full load and during the dry season, it’s subject to availability of water from the Vilcanota river. It should be noted that COES dispatch is coordinated with the dispatch programs of the Santa Teresa - Ccollpani Grande Hydroelectric Plant and the Machupicchu Hydroelectric Plant. At the fourth quarter of 2015, power production of the Santa Teresa - Ccollpani Grande Hydroelectric Plant has been 244.76 GWh.