AI-Driven Grid Project Boosts Southern Chile Transmission Capacity by 60%

ACCIONA Energía has deployed an artificial intelligence-based digitalization project in southern Chile to resolve critical bottlenecks in the National Electric System (SEN). The initiative increases the efficiency of existing infrastructure to accelerate the integration of renewable energy.

The project, known as the Transfer Control Automation System (Automatismo de Control de Transferencias), has increased transmission capacity by 60% in the southern section of the SEN. Specifically, the system optimizes the Mulchén–Santa Clara 2x220 kV and Santa Clara–Charrúa 2x220 kV transmission lines located in the Araucanía and Biobío regions. This technical optimization allows the grid to integrate an additional 239GWh of wind power, a volume of energy roughly equivalent to the annual electricity consumption of 100,000 households.

The Shift Toward Grid Digitalization

This deployment is part of a broader global strategy by ACCIONA to modernize transmission networks, drawing on the company's experience in markets including Spain, Kenya, Mexico, Peru, and Australia. Traditionally, increasing the amount of energy a grid can handle required the construction of new physical transmission lines—a process often slowed by high costs, environmental impact assessments, and lengthy permitting cycles. By applying AI to existing 220 kV lines, the company is shifting the focus from physical expansion to digital optimization.

Implications for the Energy Transition

The ability to increase capacity without building new pylons has immediate consequences for Chile's carbon footprint. By removing the bottlenecks that previously prevented wind farms from delivering their full output to consumers, the project reduces the national grid's reliance on thermal power generation and lowers associated greenhouse gas emissions. It serves as a scalable model for how digitalization can decouple energy growth from physical land use, allowing renewable energy to flow more freely from remote generation sites to urban centers.

Future Outlook

As Chile continues to expand its renewable portfolio, the success of the Transfer Control Automation System provides a blueprint for other regions facing transmission constraints. While the current implementation focuses on specific lines in the south, the potential for wider application across the SEN remains a key point of interest for industry observers. The project demonstrates that software-driven efficiency can provide a faster, more sustainable alternative to traditional infrastructure projects in the race toward net-zero emissions.