en.Wedoany.com Reported - The power grid in Minas Gerais is receiving two investments totaling billions of reais, aimed at enhancing supply reliability and modernization. Among them, AXIA has outlined a plan to invest R$1.979 billion in substations within the state by 2030, designated for reinforcement, improvements, and large-scale expansion. This plan, already approved by the Brazilian National Electric Energy Agency (ANEEL), will increase the operational reliability of transmission assets and strengthen project safety, further consolidating the power supply to the Southeast region and the National Interconnected System (SIN).
In terms of expansion, AXIA Energia is investing R$542.27 million in a synchronous compensator for the Nova Ponte 3 Substation, a project already underway and expected to generate an Allowed Annual Revenue (RAP) of R$43.64 million. The Paracatu 4 Substation expansion involves an investment of R$282.82 million to improve power factor and voltage regulation, which will generate an RAP of R$24.04 million. The Poços de Caldas Substation received the largest single investment of R$236.7 million for the installation of the first 345kV bus reactor, the addition of a second autotransformer, and the replacement of the main and backup reactors.
Robson Campos, Vice President of Expansion Projects at AXIA Energia, stated: "The improvements made to the transmission assets in Minas Gerais reaffirm the company's commitment to delivering excellent projects, increasing efficiency, and expanding the renewable energy matrix. This equipment will drive excellence in the company's infrastructure and bring new opportunities to the entire Southeast region and the Brazilian power system."
Cemig has completed the deployment of dual-source power supply systems in 700 cities within its concession area, improving power supply reliability for approximately 90% of the cities served. Since 2023, this program has accumulated investments of R$243 million by the end of this year, effectively reducing the impact of power outages by providing two independent power sources for the same area. Over the past three years, Cemig has built 442 kilometers of distribution network to enable dual-source power supply.
Dual-source power supply connects the distribution network to two independent circuits. When one circuit fails or requires maintenance, the load can be quickly transferred to the other circuit, significantly reducing customer outage duration. Hernane Salvador Braga, Expansion Planning Manager at Cemig Distribuição, noted: "By providing two power sources for the same location, we can reduce the impact of incidents and restore power more quickly. This type of investment improves service reliability and strengthens energy security."
The company plans to extend the dual-source technology to another 19 cities in 2026. This year alone, Cemig will invest over R$150 million. The dual-source expansion is part of its largest investment cycle in history, which plans to invest over R$59 billion in Minas Gerais between 2019 and 2029, covering the construction of new substations, expansion of the distribution network, and installation of automation equipment and remote operation systems to enhance fault recovery speed.
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