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Cemig Announces Record Investment of R$ 4.7 Billion for Modernization of Distribution System in 774 Municipalities and Reduction of Power Outages

Written by Hilton Libório
Published on 11/11/2025 at 14:51
Sistema moderno de distribuição de energia elétrica com o logotipo da Cemig em destaque central, sobre fundo levemente desfocado de subestação e torres de transmissão.
Foto: Cemig anuncia investimento recorde de R$ 4,7 bilhões para modernização do sistema de distribuição em 774 municípios e redução de interrupções de energia
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Cemig Accelerates Modernization of Distribution System with Investment of R$ 4.7 Billion, Enhancing Electrical Network Reliability and Benefiting Hundreds of Municipalities in Minas Gerais

The Minas Gerais Electric Company (Cemig) announced a record investment of R$ 4.7 billion to modernize the distribution system of electricity in 774 municipalities in Minas Gerais. According to a report published by the website MegaWhat this Tuesday (11), the main objective is to reduce power interruptions during the rainy season, which historically affects the stability of the electrical network in various regions of the state.

Cemig’s Investment Strengthens Infrastructure for the Rainy Season

According to Alisson Chagas, superintendent of planning and engineering at Cemig, the plan is strategic and necessary to serve a concession area equivalent to the territory of France, with over 9.5 million customers. This initiative represents the largest investment ever made by the company in distribution infrastructure.

Cemig’s investment plan has been structured to face the climatic challenges of summer, especially intense rains that cause flooding, fallen trees, and damage to the electrical network. The company intends to:

  • Build new substations
  • Replace old structures
  • Convert overhead lines to underground
  • Install automation equipment

These actions aim to ensure the continuity of energy supply, even in adverse weather conditions. It is expected that the impacts of the rains will be significantly reduced, with fewer interruptions and greater agility in restoring service.

Cemig Brings Modernization to 774 Municipalities in Minas Gerais

The scope of the plan is one of its main differentiators. With 774 municipalities covered, about 90% of Cemig’s concession area will be benefited. This includes everything from large urban centers to small towns in the countryside, promoting equity in access to quality energy.

The modernization of the distribution system will be carried out based on technical criteria and historical failure records, prioritizing regions more vulnerable to weather events. The expectation is that the electrical network will become more robust, safe, and efficient.

Automation is one of the pillars of the modernization proposed by Cemig. The installation of sensors and smart devices will enable real-time monitoring of the electrical network, with benefits such as:

  • Immediate fault detection
  • Automatic response to interruptions
  • Reduced restoration time

Furthermore, the conversion of overhead lines to underground in critical areas increases protection against weather events, such as strong winds and fallen trees. This measure is especially relevant in dense urban areas where aerial infrastructure is more susceptible to damage.

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Energy Efficiency and Reduction of Losses

With the modernization of the distribution system, Cemig expects a significant reduction in technical and commercial losses, in addition to operational gains. Improving energy efficiency contributes to:

  • Financial sustainability of the company
  • Quality of service provided
  • Lower environmental impact

These advancements are also aligned with the regulatory goals of the National Electric Energy Agency (ANEEL), which requires distributors to have robust expansion and maintenance plans to ensure system reliability.

Strategic Planning and Long-Term Vision

Superintendent Alisson Chagas emphasized that the plan was developed based on technical studies and climate projections. He highlights that it is essential to be prepared for critical periods.

This program stands out for both its scope and its effectiveness. Cemig is also investing in preventive and corrective maintenance. By the end of 2025, R$ 1.377 billion will be allocated to these actions.

By September, R$ 993 million had already been invested in overhead, underground, and high-voltage networks. This long-term planning is essential to ensure the resilience of the electrical network and the safety of consumers.

Direct Impact for Consumers and Local Economy

The modernization of the distribution system will bring direct benefits to consumers, such as:

  • Fewer power outages
  • Greater stability in supply
  • Quicker response in case of failure

These advancements are especially important for essential sectors such as health, education, and industry. Energy reliability is a critical factor for the economic and social development of the served regions.

Additionally, the plan provides for the hiring of specialized labor, generating direct and indirect jobs. The expectation is that the electrical engineering and construction sectors will be strongly boosted, energizing the economy of Minas Gerais.

Cemig and the Leadership in Energy Innovation

Cemig has distinguished itself nationally for its strategic and innovative actions. The investment of R$ 4.7 billion reinforces this position, placing the company as a reference in the planning and execution of large-scale projects.

The adoption of advanced technologies, such as smart grids and automation, demonstrates Cemig’s commitment to innovation and operational excellence. These factors are decisive in facing the challenges of the electrical sector, which increasingly demands efficiency, sustainability, and agility.

Relevance of Investment for the Future of Energy in Minas Gerais

The announcement represents a turning point in the history of energy distribution in Minas Gerais. With a record investment, Cemig demonstrates its commitment to modernizing electrical infrastructure, reducing interruptions, and improving service quality.

The scope of the plan, which covers 774 municipalities, combined with the adoption of advanced technologies and preventive maintenance, positions Cemig as a national reference in energy planning. For consumers, this means greater security, efficiency, and reliability.

The energy of the future begins with strategic decisions in the present. And Cemig is leading this movement with responsibility and innovation.

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Hilton Libório

Hilton Fonseca Liborio é redator, com experiência em produção de conteúdo digital e habilidade em SEO. Atua na criação de textos otimizados para diferentes públicos e plataformas, buscando unir qualidade, relevância e resultados. Especialista em Indústria Automotiva, Tecnologia, Carreiras, Energias Renováveis, Mineração e outros temas. Contato e sugestões de pauta: hiltonliborio44@gmail.com

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