en.Wedoany.com Reported - The Brazilian Institute of Environment and Renewable Natural Resources (Ibama) has issued Installation License No. 1563/2026, officially approving the construction of the Graça Aranha–Silvânia ±800 kV transmission line. The project is expected to require a total investment of approximately 18 billion Brazilian reais to complete the entire circuit, substations, and synchronous compensators. The project is considered a key asset of the National Interconnected System (SIN) and will directly reduce transmission constraints for wind and solar power generation.

The transmission line traverses the states of Maranhão, Tocantins, and Goiás, with a total length of approximately 1,500 kilometers. The project employs ultra-high voltage direct current transmission technology (±800 kV HVDC), designed to achieve long-distance, large-capacity power transmission with minimal electrical losses, addressing structural technical challenges.

This project configuration helps alleviate operational bottlenecks and improve overall grid efficiency, thereby facilitating the integration of new power plants awaiting transmission capacity.

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