ACCIONA Energía has completed the design, implementation and commissioning of an artificial intelligence-based grid digitalization project in Chile. This initiative will increase transmission capacity by 60% in the southern section of the National Electric System (SEN).

The system, known as Transfer Control Automation System, will enable the integration of an additional 239GWh of wind power generation into the grid, equivalent to the annual electricity consumption of around 100,000 households. This increased injection of renewable energy will help to reduce reliance on thermal power generation and its associated emissions, further enhancing the positive impact of the solution on the electricity system.

The project incorporates digital and communications technologies that optimize the Mulchén–Santa Clara 2x220 kV and Santa Clara–Charrúa 2x220 kV transmission lines, located in the Araucanía and Biobío regions and operated by Transelec, Ferrovial, SAESA, CELEO and Transmisora Sur Andes. In addition, the system development and implementation has also involved the participation of power generation companies Enel Green Power and WPD and has been validated through advanced simulations conducted by the University of Santiago, Chile and the National Electric Coordinator.

EXTENSIVE EXPERIENCE

ACCIONA has more than 20 years of experience in the financing, design and construction of transmission networks and electrical substations of all sizes—from low-voltage facilities to transmission lines and substations—in Spain and in other countries such as Kenya, Mexico and Peru.

The company has delivered more than 70 power grid projects across multiple countries, contributing to the development of critical infrastructure for electricity transmission and the integration of renewable generation into power systems.

Peru is one of ACCIONA's most significant markets in this field. The company is currently developing eight concession-based transmission projects covering the design, financing, construction, operation and maintenance of 1,203 kilometers of transmission lines, 12 new substations and the expansion of 16 existing substations. In addition, the company strengthened its presence in the

country in 2024, after reaching an agreement with Darby International Capital to acquire its high-voltage transmission business, positioning ACCIONA as one of the leading transmission operators in Latin America.

Australia is another key market for ACCIONA, where the company is involved in strategic projects such as the HumeLink transmission line in New South Wales and the Central-West Orana Renewable Energy Zone (REZ) transmission network, two critical infrastructures supporting the transition to more sustainable energy systems.