Horizonte: Largest onshore wind farm in Latin America

778 MW

total capacity of the four onshore wind farms


homes powered annually


Sigdo Koppers Ingeniería y Construcción SA




Onshore wind farms





Colbún’s Horizonte wind farm stands as a beacon of renewable energy advancement in Latin America, boasting an impressive installed capacity of 778 MW. This project, situated in the municipality of Taltal, Antofagasta Region (Chile), not only marks the largest onshore wind farm under construction in the region but also ranks among the world’s highest installed capacities. It is anticipated to produce 2,400 GWh per year, equivalent to powering over 700 thousand homes annually. The endeavor aligns with global efforts to combat climate change by reducing CO2 emissions by 1.2 million tons annually. Scheduled for completion in 2024, the Horizonte Project is pivotal in Chile’s pursuit of a carbon-neutral future by 2030.


The scale and significance of the Horizonte wind farm project present multifaceted challenges. These include optimizing conductor design to meet the project’s unique requirements, ensuring timely production and delivery of 840 kilometers of electrical conductors, and aligning solutions with sustainability objectives. Moreover, effective collaboration among stakeholders is essential for project success amidst evolving renewable energy landscapes and regulatory frameworks.

778 MW

installed capacity

2,400 GWh

annual generation

700 K

homes powered annually

Nexans implication

Madeco by Nexans plays a pivotal role in advancing the Horizonte wind farm project. Leveraging its expertise in cabling solutions, Nexans supplied 840 kilometers of electrical conductors, predominantly aluminum medium voltage cables. These cables were optimized to meet the project’s specific requirements and produced at Nexans plants in Chile and Peru.

We have worked with Sigdo Koppers and Colbún to find the best solutions, in terms of the of conductors, section and reel design, and thus generate relevant efficiencies that contribute to the success of the project.

Miguel Fernandez

Commercial Manager, Nexans in Chile

We are very proud to be part of the largest wind farm under construction in Latin America, and one of the most significant worldwide. Participating and working with the various actors involved in the project reaffirms our commitment to developing renewable energies, both in Chile and in the region, as well as our commitment to supporting the carbon-neutral transition by 2030, thereby ensuring a safer, more sustainable, renewable energy future and, above all, accessible to all.

Luis Ernesto Silva

Vice President for the Andean Region, Nexans

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Horizonte: Largest onshore wind farm in Latin America