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Solar energy in Brazil fell 3% in Q4 2024, despite the increase in the cost of photovoltaic inputs; the Center-West is the most affordable region.
A solar energy has revolutionized the energy scenario, gaining prominence as a viable solution to face environmental challenges. In 2024, photovoltaic energy showed a drop in prices for the end consumer, even with the increase in equipment costs. It is estimated that the Central-West region will continue to lead as the most accessible national region for the installation of solar systems. Investment funds such as Solfácil have shown that the need to maintain competitiveness prevented the increase from being passed on to customers.
With sustainable initiatives gaining traction, mining increasingly adopts electricity generated from renewable sources. This movement is pushing the industry to review its practices and adopt more environmentally friendly standards. By 2025, the mining sector will see a significant increase in the incorporation of clean energies, not only to reduce costs, but also to mitigate the environmental impact of operations. Experts indicate that cities in Brazil that invest more in solar energy will be better positioned to lead the global market.
Increasing Solar Energy in Mining Operations
The July 2025 issue of Energia & Mineração Magazine highlights that the integration of solar energy into the daily operations of mining companies is already a tangible reality. The report mentions that, by replacing part of their traditional energy consumption with solar, companies hope to reduce their carbon footprint by up to 25%. The same publication highlighted that the State of Minas Gerais is leading this trend, establishing favorable policies and tax incentives to boost the use of solar energy in the mining sector.
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Mining is also benefiting from technological advances in energy storage. Cutting-edge battery technologies are enabling mining operations to more effectively utilize solar energy captured during the day. In early 2026, project planners are focusing on implementing hybrid systems, which combine solar energy with other renewable sources to increase energy efficiency.
It is estimated that increased investment in solar energy will contribute not only to cost reduction, but also to a greater commitment to ESG (environmental, social and governance) practices. Studies by the International Renewable Energy Agency, carried out in 2023, suggest that countries that strengthen their capacities in photovoltaic energy sees returns fast in terms of sustainability and innovation.
In conclusion, solar energy is not only shaping the future of industries that have traditionally relied on natural resources, but it is also setting a new standard for greener, more cost-effective operations. As noted in reports from the National Institute of Energy, the strategic adoption of renewable energy in mining means a lasting positive impact, cementing a long-overdue environmental responsibility. With trends indicating continued growth through 2025, it is clear that Mining is at the forefront of the energy transition.
Falling Solar Energy Costs by 2024
In Brazil, even with the increase in prices of inputs, the cost of solar energy for homes showed a 3% reduction during the fourth quarter of 2024. The value fell from R$2,53 to R$2,46 per Watt-peak (Wp) compared to the previous quarter. This data was extracted from Solfácil Radar, an indicator prepared quarterly by Soleasy, which is recognized as the largest solar energy ecosystem in Latin America. According to the research, the main reason for this reduction was the need for integrators adapt to a market characterized by high competitiveness.
Challenges for Solar Energy Integrators and Consumers
The increase in prices of photovoltaic inputs led many companies to renegotiate values with end consumers to remain attractive. In addition, prolonged negotiations have made it difficult to pass on the increased costs in full to buyers. Thus, solar energy integrators are in a situation where keeping prices at a competitive level is vital to avoid losing market share. Fabio Carrara, CEO of Solfácil, highlights that this situation ends up benefiting consumers, who can access solar energy at more affordable prices, but affects the profitability of companies in the sector.
Trends and Challenges for 2025 in Solar Energy
Although there was a decrease in costs for consumers in the fourth quarter of 2024, the scenario looks different for 2025 due to possible tax changes that could increase input prices. This would inevitably have a direct impact on the final cost for those who choose to install solar energy. In the current survey, only projects up to 4 kWp saw a slowdown in the fall in prices, with a modest 2% drop compared to the immediately previous period.
Regional Variation of Solar Energy Prices
In most states in the country, a reduction in the price of solar energy was observed. Paraná and Tocantins stood out as leaders in reducing costs, with a significant drop of 7%. Close behind, Rio de Janeiro and Piauí recorded decreases of 6%, while São Paulo, Acre, Mato Grosso do Sul and Rio Grande do Sul registered reductions of 5% each. On the other hand, states such as Espírito Santo and Sergipe, both recording a 2% increase, and Amapá with 1%, experienced increases in average prices.
Central-West: the Most Accessible Region
Among Brazilian regions, the Central-West remains the most economical for solar energy, recording an average cost of R$2,36 per watt-peak (Wp), after decreasing 2% compared to the previous quarter. The list continues with the South with R$2,44 (Wp), which saw a 4% drop. The Southeast reached R$2,48 (Wp), above the national average, despite a 3% reduction. The Northeast recorded R$2,45 (Wp), also with a 2% drop. The North region, on the other hand, positioned itself as the most expensive for solar projects, despite registering a 4% drop in the period, remaining at R$2,60 (Wp).
Source: SOLFACIL Press
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