Brazil stands as a global leader in solar thermal energy, ranking third worldwide in newly installed collector area in 2023, following China and India. The country added 1.83 million m² of solar thermal collectors—equivalent to 1,281 MW—marking a 2.8% increase over the previous year. This growth is primarily driven by the residential sector, which accounts for approximately 73% of installations, with the commercial (12%) and industrial (3%) sectors also contributing.
Brazil's high solar irradiation, ranging from 4.25 to 6.5 sun hours per day, provides an ideal environment for solar thermal applications. The southeastern region dominates the market, representing 65% of sales, followed by the south (20%), central-west (7%), northeast (5%), and north (3%).
A significant development is the enactment of Law PL3492/2023, which mandates the installation of solar water heaters in designated areas under the federal social housing program, Minha Casa, Minha Vida. This legislation is expected to boost the market by 12% in 2024, as it aims to reduce reliance on electric showers, which account for about 7% of the country's electricity consumption.
The industry is also witnessing a shift towards integrating solar thermal systems with photovoltaic (PV) technology enhancing energy efficiency and providing both electricity and hot water solutions for households.
In the industrial sector, solar thermal applications remain limited, comprising only 3% of the market. Notable projects, such as PepsiCo Brazil's installation of 1,150 m² of collectors for process heat, demonstrate the potential for industrial adoption. However, broader implementation faces challenges due to the need for short payback periods and lack of targeted incentives.
Opportunities for growth include expanding into commercial sectors like hospitality and healthcare, where solar thermal systems can significantly reduce energy costs. Additionally, developing solar district heating projects in urban areas could further diversify applications. Government support through financing options and public awareness campaigns will be crucial in realizing this potential.
In summary, Brazil's solar thermal industry is poised for continued growth, supported by favorable climatic conditions, legislative initiatives, and a trend towards integrated renewable energy solutions. Strategic investments and supportive policies will be key to unlocking the full market potential across residential, commercial, and industrial sectors.
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