01
Power Transmission Experience
Transelec makes all of its knowledge and experience in the design, construction, operation and maintenance of power transmission facilities to its customers in order to guarantee service meeting the highest international standards, support the development of new initiatives from the very start and throughout operation, in order to act as an integral partner for transmission business development.
Transelec bases its efforts on operational excellence, innovation, human capital and knowledge.
02
Development and Engineering
Tineo – Ancud 2x500 kV Line
Los Lagos Region
This project is essential to strengthening the national and regional electricity system, especially in the Province of Chiloé, through a 500 kV line energized at 220 kV.
The line will cross six municipalities in the Los Lagos Region’s provinces of Llanquihue and Chiloé (Llanquihue, Puerto Varas, Puerto Montt, Maullín, Calbuco, and Ancud
Approximate length of 95 km, with 251 high voltage towers.
It includes the aerial crossing of the Chacao Channel.
Double circuit in 500 kV, energized in 220 kV.
Jadresic Substation
Antofagasta Region
Its construction and operation increases the energy transmission capacity of the National Electric System (SEN), which will allow injecting the enormous amount of renewable energies generated in the Norte Grande to transmit them from there to the whole country. With its commissioning, the security and continuity of the electricity supply in the medium and long term in the area will be improved, in order to better cover the energy demand of the area for domestic, mining and industrial consumption in the sector.
– 500 kV yard in a breaker-and-a-half arrangement.
– 220/500 kV transformation yard, 750 MVA, 4 single-phase units.
– Single-phase reactor bank yard with a capacity of 150 MVA each.
– 220 kV switchyard in breaker-and-a-half arrangement.
– Connection of the 1×220 kV Tap Talta – Lalackama line with the 1×220 kV Eólica Talta – Tap Taltal line.
– Sectioning of the 2×500 kV Los Changos – Cumbre line, owned by TEN.
– Sectioning of the 1×220 kV Eólica – Tap Taltal line.
– Connection of the future 2×500 kV Jadresic – Monte Mina line.
Quebrada Blanca 2 Transmission System
Tarapacá Region
A transmission project was implemented for the mining company Teck to power its new Quebrada Blanca mine, located at 4,400 masl.
The works included the construction of two new substations, expansion works, and a 122 km transmission line that includes a 1 km underground section for an operation that expects to produce 320,000 tons of copper per year in the first five years.
– 2×500 kV transmission line spanning approximately 140 km with capacity amounting to 1,500 MW between Los Changos and Kimal.
– 2 500/220 kV 750 MVA autotransformer Banks at the Nueva Crucero Encuentro Substation.
– 1 500/220 kV 750 MVA autotransformer bank at the Los Changos Substation.
– 2×220 kV transmission line spanning approximately 3 km with nominal capacity of 1,500 MW between Los Changos and Kapatur.
Pichirropulli – Tineo 2x500 kV Line
Pichirropulli – Tineo 2×500 kV Line
This line reinforced the transmission system in southern Chile, increasing the transmission capacity to inject future energy sources, such as renewables, into the central area.
The line runs west of the Route 5 South Highway, and 60% of it does so alongside an existing Transelec line, avoiding visually impacting a new area.
Approximately 145 km in length, with 365 high-voltage towers.
Double circuit in 500 kV, energized in 220 kV.
4 AAC Verbena type conductors per phase, with a capacity of 1500 MVA per circuit at 35ºC with sun.
Frutillar Norte Substation
Los Lagos Region
Its commissioning increased the electricity supply security in the country’s south and met the area’s energy demand. In addition, it is a connection point for generation projects in southern Chile.
Innovative construction methods were used to reduce the socio-environmental impact. Helical anchors and piles were used for the foundations of the substation and the structures of the sectioning lines, which avoided making large excavations and reduced concrete use.
220 kV Main Yard.
Sectioning of the 2×220 Rahue – Puerto Montt high voltage line.
Changos – Kapatur and Changos – Kimal lines
Mejillones, Antofagasta Region
Its construction made it possible to interconnect the SING and SIC systems and increased transport capacity between the Crucero—Encuentro node and the National Interconnected System.
2×500 kV line, approximately 140 km long, with 1,500 MW capacity, between Los Chagos and Kimal.
Two banks of 500/220 kV 750 MVA auto-transformers at the Nueva Crucero Encuentro Substation.
One bank of 500/220 kV 750 MVA auto-transformers at Los Changos Substation.
2×220 kV line, approximately 3 km long with a nominal capacity of 1,500 MW, between Los Changos and Kapatur.
New Lo Aguirre – Cerro Navia Line
Metropolitan Region, western sector
The construction of this line increased the electricity transfer capacity from the 500 kV system of the Lo Aguirre substation to 220 kV at the Cerro Navia substation, thus providing greater security and capacity.
2×220 kV line between the Lo Aguirre and Cerro Navia substations. Nominal capacity of 1,500 MVA.
Approximately 12 km long, with an underground tunnel section of around 1.5 km.
The project includes the distribution yards at Lo Aguirre and Cerro Navia.
Entre Rios Substation
Cabrero, Biobío Region
The project includes the construction of the Entre Ríos substation (originally called Nueva Charrúa), the new 2×220 kV Entre Ríos – Charrúa line, and the sectioning of the 2×500 kV Charrúa – Ancoa 1 and 2 lines.
The infrastructure will be a new 500 kV injection point for connecting future electricity generation sources and controlling the increase in short circuit levels in the existing Charrúa substation.
New substation with 500 kV and 220 kV yards.
500 kV yard in a breaker-and-a-half arrangement with space for installing 8 diagonals and 220 kV yard in a breaker-and-a-half arrangement with space for installing 9 diagonals.
Three banks of 500/220 kV auto-transformers with their respective reserves.
500 kV, 220 kV, and tertiary auxiliary bar.
New 500/220 kV 750 MVA auto-transformer, with tertiary bar, reserve unit, auxiliary bars, disconnectors, and the respective 500 kV and 220 kV diagonals.
New 2×220 kV line between the Nueva Charrúa and Charrúa substations, with a minimum capacity of 1,000 MVA per circuit at room temperature of 35ºC and two 220 kV distribution yards connected to two different bar sections in Charrúa.
03
Water desalination and supply
Construction, design, and installation of seawater desalination plants and transport systems for mining customers, reducing the use of inland waters for their operations.
Aguas Horizonte
Desalination Plant for Codelco
In a BOOT (Build, Own, Operate, and Transfer) model, Aguas Horizonte SpA, a company founded by Marubeni and Transelec, will finance, build, own, and operate the project for 20 years before transferring it to Codelco at the end of the contract.
The project will supply water to Codelco’s Chuquicamata, Radomiro Tomic, and Ministro Hales operations. The works include the reverse osmosis desalination plant, maritime works, and a water propulsion system that will run pipes for more than 160 kilometers to deliver the water to a reservoir, which will be built in Radomiro Tomic at more than 3,000 meters above sea level.
Aguas Esperanza
Seawater for Antofagasta Minerals
Through a consortium formed by Transelec and Almar Water Solutions, Aguas Esperanza SpA is developing a non-desalinated water transport system for the expansion of Antofagasta Minerals’ Centinela mine.
The project includes acquiring and operating a 144 km long water pipeline that transports 1,194 l/s (110,678 m3/day), supplying seawater 60 km north of the mine in Michilla, where the port of Centinela is located. It also considers constructing and operating a new 144 km long pipeline for 650 l/s (56,333 m3/day) alongside the existing pipeline.
04
Storage Systems
The company provides its experience and qualified teams to develop this critical infrastructure, enabling the connection of renewable energies and providing stability to customers and end users.
BESS Project
Storage for solar power plant
Transelec has been awarded the supply, construction, and operation of a battery energy storage system (BESS) for a solar power plant in northern Chile. The objective is to optimize the injection of solar energy into the National Electric System (Sen).
The storage system’s capacity is 105 MW for 4 hours, which means that the injection of the photovoltaic plant to the SEN will be done—most of the time—during hours of high demand and higher marginal costs (nighttime).
05
Our Customers
Explore a list of customers who have trusted us.
