Solar energy advances in Northern Minas Gerais; multi-million dollar complex receives approval and begins selling electricity on the free market

Published 30/12/2025 às 08:56

Solar power complex in Northern Minas Gerais receives authorization from Aneel, totals 80 MW of installed capacity, and begins commercial operation in the free market.

Solar energy has once again gained prominence in Brazilian electric sector With authorization for commercial operation of one of the largest photovoltaic projects in Northern Minas Gerais, the Grande Sertão GSII Photovoltaic Complex, located in the municipality of Várzea da Palma, received the green light from the National Electric Energy Agency (Aneel) and will begin supplying electricity immediately.

The project brings together three solar power plants and represents an investment of R$ 388 million. Together, the units total 80 megawatts (MW) of installed capacity, reinforcing the region’s role as a strategic hub for solar power generation in the country.

Aneel’s approval marks the final stage of the project.

The authorization granted by Aneel was published in the Official Gazette of the Union on Friday, the 26th. With this, the complex completes the last regulatory phase necessary to begin full commercial operation.

Before final approval, the GSII Solar 1, GSII Solar 2, and GSII Solar 3 plants underwent a testing period, which began on December 5th. This phase evaluated the performance of the equipment, protection systems, and energy measurement mechanisms.

Commercial clearance indicates that all structures comply with technical and safety requirements, as well as current legislation in the electricity sector.

The structure of the power plants reinforces the capacity of the complex.

In terms of infrastructure, the complex has a diverse configuration. The first two plants have 90 generating modules each, reaching 25 MW of power per unit. The third plant has 116 modules, with a maximum injection power of 30 MW into the system.

This combination ensures operational flexibility and greater efficiency in delivering the solar energy produced. The system reinforces the trend of large-scale projects focused on centralized generation.

Production will be destined for the free energy market.

All the energy generated by the Grande Sertão GSII Photovoltaic Complex will be sold in the Free Contracting Environment (ACL). In this model, generators and large consumers negotiate contracts directly, without the intermediation of traditional distributors.

The free market is gaining ground in Brazil, especially among companies seeking cost predictability and access to renewable energy sources. The entry of new solar energy projects expands supply and increases competitiveness in this segment.

Jobs and regional impact during implementation

In addition to its energy contribution, the project also had a significant impact on the local economy. During the implementation phase, approximately 3,6 direct and indirect jobs were generated in the Várzea da Palma region.

The operation involved local labor, specialized services, logistics, and the supply of inputs, strengthening the regional production chain associated with solar energy.

Environmental licensing ensures compliance.

The complex also has an Operating License issued by the State Secretariat for the Environment and Sustainable Development of Minas Gerais (Semad). The document ensures that the project meets the environmental requirements necessary for energy activity in the state.

The licensing, combined with federal authorization, reinforces the legal security of the project and enables its definitive integration into the national electricity grid.

Solar energy consolidates its leading role in the electricity sector.

With the commissioning of the GSII complex, solar energy is expanding its presence in the Brazilian energy mix. Projects of this scale demonstrate the sector’s maturity and its capacity to attract robust investments, while simultaneously meeting the growing demand for clean electricity in the free market.

The progress of the project in Northern Minas Gerais confirms the region as a strategic area for photovoltaic expansion, boosting generation, jobs, and new businesses linked to the energy transition in the country.