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The average cost of photovoltaic systems in Brazil increased by 7% between January and June 2026 for projects of up to 300 kW, according to a strategic study by Greeners on distributed energy solutions. The study examined final system prices, which combine the equipment kit with integration services, drawing kit costs from price mapping and distributor inquiries while collecting final system prices from integrators across the country.
For 2 kW systems, the average price reached BRL 3.62 per watt in June, compared with BRL 3.44 per watt in January, corresponding to a total system price of roughly BRL 7,200. The lowest per-watt prices among the surveyed sizes were recorded for 30 kW and 50 kW systems at BRL 2.02 per watt, equivalent to total system prices of approximately BRL 60,600 and BRL 101,000 respectively.
Larger projects carried a lower price per watt but demanded a higher overall investment. A 300 kW system averaged BRL 2.40 per watt, or around BRL 720,000, while a ground-mounted system of the same capacity averaged approximately BRL 834,000.
The rise in final system prices occurred alongside a sharper increase in equipment costs. Average kit prices for 4 kW systems climbed 18.3% between January and June 2026, from BRL 1.42 per watt to BRL 1.68 per watt. The increase varied by system size: 300 kW kits rose 2.0%, from BRL 1.02 per watt to BRL 1.04 per watt, and 50 kW kits rose 8.8%, from BRL 1.14 per watt to BRL 1.24 per watt.
Historical data from Greeners indicates that current prices remain well below levels seen in the earlier stages of Brazil’s distributed solar market. The average price of a 4 kW residential system declined from BRL 7.74 per watt in January 2017 to BRL 2.91 per watt in June 2026, while a 50 kW commercial system fell from BRL 6.06 per watt to BRL 2.02 per watt over the same period.
The price trends emerged as Brazil’s distributed generation market slowed in the first half of 2026. New connections declined 16% year on year, from 488,000 to 411,000, and the number of new consumer units receiving credits dropped 43%, from 951,000 to 541,000.
Residential systems meanwhile accounted for a growing share of new installations, representing 65% of added capacity in the first half of 2026, up from 39% in 2019, while the commercial segment’s share fell to 19%.
The concentration of sales in smaller systems highlights the importance of pricing for residential consumers. In a survey of system integrators, 80% identified residential systems of up to 12 kW as their best-selling category. Commercial systems from 12 kW to 75 kW accounted for 16%, while systems above 75 kW represented 4%.
Financing may also influence purchasing decisions. Only 33% of integrators’ sales involved financing in the first half of 2026, down eight percentage points from 2025 and the lowest share recorded during the period analyzed.
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