en.Wedoany.com Reported - Chilean company Inversiones La Frontera del Biobío SpA has submitted the "San Carlos-Mulchén Substation 2x220 kV High-Voltage Transmission Line" project to the Environmental Impact Assessment System (Sistema de Evaluación de Impacto Ambiental, SEIA), planning an investment of $7 million to strengthen power transmission infrastructure in the Biobío region.
The project is currently in the environmental review phase, proposing the construction of a 220 kV double-circuit transmission line approximately 9.03 kilometers in length, entirely within the municipality of Mulchén. This line will connect a node located 4.4 kilometers north of the city to the Mulchén substation owned by Colbún S.A.
According to the Environmental Impact Statement, the line will have a maximum installed capacity of 350 MVA, enabling the transmission of electricity generated by future energy projects in the area to the National Electric System (Sistema Eléctrico Nacional, SEN). The infrastructure will consist of 27 high-voltage towers, ranging in height from 35.8 to 48.7 meters. The project also includes access roads, power stringing stations, and other ancillary works required for construction and operation.
The company plans to commence the construction phase in January 2030, with an estimated duration of 5.5 months and a peak workforce of 80 workers. Operations are scheduled to begin in June of the same year. The infrastructure is designed with a service life of 50 years, which the owner states can be extended through equipment maintenance and refurbishment plans.
The project will occupy a total area of approximately 41.45 hectares, including both permanent and temporary works. Temporary works involve power stringing stations, construction facilities, and areas for structure and conductor assembly. The line is primarily located in rural areas dominated by agriculture and forestry, outside the urban boundary defined by the Mulchén municipal planning regulations.
The owner claims that the project will not significantly impact natural resources, human communities, cultural heritage, or protected areas, and has therefore been submitted as an Environmental Impact Statement rather than an Environmental Impact Study. Considered measures include emission control plans, noise mitigation during construction, rescue and relocation of sensitive wildlife, waste management, and environmental monitoring of the works. The project also includes contingency plans to address potential operational and environmental risks.
This article is compiled by Wedoany. All AI citations must indicate the source as "Wedoany". If there is any infringement or other issues, please notify us promptly, and we will modify or delete it accordingly. Email: news@wedoany.com
