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Aneel Authorizes Start of Test Operation of Mercatto Energia Power Plants Strengthening Distributed Generation with Solar Energy in Tangará and Campo Novo
On January 6, 2026, the National Electric Energy Agency (Aneel) authorized the start of the test operation of two photovoltaic generation units from Mercatto Energia, reinforcing the expansion of distributed generation and solar energy in Mato Grosso. The decision was published in the Official Gazette of the Union (DOU) and marks a strategic advance for the company in the Brazilian electric sector.
According to a report published by the MegaWhat website, the authorizations involve the Pedreira Tangará power plant, with an installed capacity of 0.600 megawatts (MW), and Silvana Maria Vizzoto Varnie, with 0.960 MW. Located in the municipalities of Tangará da Serra and Campo Novo do Parecis, both will be used to account for the company’s own energy under the solar GD power plants model, in accordance with the current distributed generation rules.
Aneel Authorization Marks Advancement of Distributed Generation
The authorization granted by Aneel allows the units to enter test operation, a mandatory step before final authorization for commercial operation. In this phase, technical, operational, and safety criteria are evaluated to ensure that the plants are fully integrated into the electrical system.
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In the case of Mercatto Energia, the authorization demonstrates compliance with the regulatory and technical requirements demanded by the regulatory body. This process is essential to ensure stability in the electrical system, especially in a scenario of accelerated growth in distributed generation in the country.
The publication of the dispatches in the DOU provides transparency and legal validity to the decision, in addition to serving as an official reference for the market, investors, and sector agents.
GD Solar Power Plants Boost Solar Energy in Mato Grosso
The new authorized GD solar power plants are located in strategic regions of Mato Grosso, a state that stands out nationally for its growth in photovoltaic generation. The combination of high solar irradiation, territorial availability, and increasing energy demand favors the implementation of such projects.
The Pedreira Tangará plant in Tangará da Serra has a capacity of 0.600 MW, while the Silvana Maria Vizzoto Varnie unit in Campo Novo do Parecis has 0.960 MW.
Both were designed to meet the distributed generation model, in which the energy produced is used to offset the consumption of the company itself. This model reduces costs, decreases losses in transmission, and increases energy efficiency, in addition to encouraging the large-scale use of renewable sources.
Mercatto Energia Expands Operations Beyond Marketing
Mercatto has been operating as an energy trader in the free market since 2011. Based in Farroupilha, Rio Grande do Sul, the company has built its operations by offering management, negotiation, and optimization solutions for energy contracts for consumers and generators.
In recent years, the company has diversified its activities, investing directly in generation assets, focusing on solar energy and distributed generation. This strategy can reduce exclusive dependence on marketing, strengthen the portfolio, and increase cost predictability.
Entering its own generation projects follows a trend observed among various market agents who seek greater control over their energy matrix.
Solar Energy and Distributed Generation as Long-Term Strategy
The expansion of solar energy in Brazil has been driven by technological advancement, decreasing implementation costs, and a regulatory environment that favors distributed generation. In this context, GD solar power plants gain importance by allowing greater proximity between generation and consumption.
For companies like Mercatto Energia, distributed generation represents a long-term strategy capable of increasing competitiveness, mitigating risks, and aligning operations with environmental sustainability criteria.
Moreover, the decentralization of electrical production helps relieve the national interconnected system, especially during periods of high demand or water restrictions.
The Role of Aneel in the Regulatory Security of the Sector
Aneel plays a central role in regulating distributed generation in Brazil, defining technical, commercial, and operational rules for the connection of power plants to the electrical grid. The agency’s actions ensure balance among generators, distributors, and consumers.
In the case of GD solar power plants, regulation establishes clear criteria for energy compensation, access to the grid, and safe operation. Regulatory predictability is essential to attract investments, especially in medium- and long-term projects. The authorization granted to Mercatto Energia reinforces market confidence in the Brazilian regulatory framework.
Economic and Operational Impacts of GD Solar Power Plants
The commissioning of the power plants in Mato Grosso brings direct benefits to Mercatto Energia, such as reduced costs for energy purchases, greater operational autonomy, and optimized energy management.
From a systemic standpoint, the expansion of distributed solar energy contributes to diversifying the electric matrix, reducing greenhouse gas emissions, and increasing system resilience. This model aligns with global energy transition guidelines, which prioritize renewable and decentralized sources.
Perspectives for Mercatto Energia and Distributed Generation
With the authorization from Aneel, Mercatto Energia advances in its consolidation strategy in the distributed generation segment. The expectation is that, after the completion of the testing phase, the units will be released for full commercial operation. The national scenario remains favorable for new GD solar power plant projects, driven by the demand for energy efficiency, sustainability, and cost predictability.
States like Mato Grosso are expected to continue attracting investments, increasing their share in the Brazilian photovoltaic matrix. The authorization granted on January 6, 2026, represents more than just the entry into operation of two power plants. It symbolizes the continuous advancement of distributed generation and solar energy in Brazil.
By investing in its own power plants in Mato Grosso, Mercatto Energia strengthens its business strategy, contributes to diversifying the electrical matrix, and reinforces the importance of a regulated, secure, and sustainability-oriented sector. The expansion of GD solar power plants confirms that the energy transition is moving from being a trend to becoming a reality in the country.
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