Solar Energy Potential in Barrinha, São Paulo, Brazil
Barrinha, São Paulo, Brazil, located in the tropical region at latitude -21.224 and longitude -48.0839, offers promising conditions for solar photovoltaic (PV) energy generation throughout the year. This location benefits from its tropical positioning, where sunlight remains relatively consistent across seasons, though with notable variations between wet and dry periods. The solar energy production potential in Barrinha demonstrates seasonal fluctuations while maintaining good overall output. During summer months, the location yields its highest production at 6.85kWh per day for each kilowatt of installed solar capacity. Spring follows closely with 6.34kWh/day, while autumn sees a moderate decrease to 5.69kWh/day. Winter represents the lowest production period, though still respectable at 4.97kWh/day per installed kilowatt.Optimal Installation Considerations
For fixed solar panel installations in Barrinha, São Paulo, the ideal tilt angle to maximize year-round energy production is 20 degrees facing North. This specific angle optimizes solar capture throughout the year, accounting for the location's position in the Southern Hemisphere and the sun's seasonal path variations. The most productive periods for solar generation in Barrinha occur during summer and spring, making these seasons particularly advantageous for energy production. However, the relatively small difference between the highest and lowest seasonal outputs (less than 2kWh/day variation) indicates that this location maintains good solar potential year-round, a characteristic advantage of its tropical setting.Environmental and Weather Considerations
Several environmental factors could potentially impact solar production in Barrinha:- Seasonal rainfall patterns during the wet season may reduce solar exposure through increased cloud cover
- Dust accumulation during dry periods can diminish panel efficiency if not properly maintained
- Higher temperatures in summer months might slightly reduce panel efficiency
Note: The Tropics are located between 23.5° North and -23.5° South of the equator.
So far, we have conducted calculations to evaluate the solar photovoltaic (PV) potential in 3161 locations across Brazil. This analysis provides insights into each city/location's potential for harnessing solar energy through PV installations.
Link: Solar PV potential in Brazil by location
Solar output per kW of installed solar PV by season in Barrinha
Seasonal solar PV output for Latitude: -21.224, Longitude: -48.0839 (Barrinha, Brazil), based on our analysis of 8760 hourly intervals of solar and meteorological data (one whole year) retrieved for that set of coordinates/location from NASA POWER (The Prediction of Worldwide Energy Resources) API:
 
Ideally tilt fixed solar panels 20° North in Barrinha, Brazil
To maximize your solar PV system's energy output in Barrinha, Brazil (Lat/Long -21.224, -48.0839) throughout the year, you should tilt your panels at an angle of 20° North for fixed panel installations.
As the Earth revolves around the Sun each year, the maximum angle of elevation of the Sun varies by +/- 23.45 degrees from its equinox elevation angle for a particular latitude. Finding the exact optimal angle to maximise solar PV production throughout the year can be challenging, but with careful consideration of historical solar energy and meteorological data for a certain location, it can be done precisely.
We use our own calculation, which incorporates NASA solar and meteorological data for the exact Lat/Long coordinates, to determine the ideal tilt angle of a solar panel that will yield maximum annual solar output. We calculate the optimal angle for each day of the year, taking into account its contribution to the yearly total PV potential at that specific location.
Seasonally adjusted solar panel tilt angles for Barrinha, Brazil
If you can adjust the tilt angle of your solar PV panels, please refer to the seasonal tilt angles below for optimal solar energy production in Barrinha, Brazil. As mentioned earlier, for fixed-panel solar PV installations, it is optimal to maintain a 20° North tilt angle throughout the year.
| Overall Best Summer Angle | Overall Best Autumn Angle | Overall Best Winter Angle | Overall Best Spring Angle |
|---|---|---|---|
| 5° North in Summer | 27° North in Autumn | 37° North in Winter | 15° North in Spring |
Our recommendations take into account more than just latitude and Earth's position in its elliptical orbit around the Sun. We also incorporate historical solar and meteorological data from NASA's Prediction of Worldwide Energy Resources (POWER) API to assign a weight to each ideal angle for each day based on its historical contribution to overall solar PV potential during a specific season.
This approach allows us to provide much more accurate recommendations than relying solely on latitude, as it considers unique weather conditions in different locations sharing the same latitude worldwide.
Calculate solar panel row spacing in Barrinha, Brazil
We've added a feature to calculate minimum solar panel row spacing by location. Enter your panel size and orientation below to get the minimum spacing in Barrinha, Brazil.
Our calculation method
- Solar Position:
We determine the Sun's position on the Winter solstice using the location's latitude and solar declination. - Shadow Projection:
We calculate the shadow length cast by panels using trigonometry, considering panel tilt and the Sun's elevation angle. - Minimum Spacing:
We add the shadow length to the horizontal space occupied by tilted panels.
This approach ensures maximum space efficiency while avoiding shading during critical times, as the Winter solstice represents the worst-case scenario for shadow length.
Topography for solar PV around Barrinha, Brazil
The topography around Barrinha, Brazil is characterized by gently rolling terrain typical of the interior São Paulo state region. Situated in the Paraná River basin, this area features modest elevation changes with altitudes generally ranging between 500-600 meters above sea level. The landscape consists primarily of low, undulating hills interspersed with shallow valleys formed by local drainage systems. These terrain features have been shaped over time by the weathering of the underlying basaltic rock formations common to this part of Brazil. The region surrounding Barrinha exhibits a predominantly agricultural landscape, with much of the natural vegetation having been converted to farmland over the decades. Sugar cane plantations dominate the rural areas, taking advantage of the fertile soils and relatively flat terrain. The natural drainage pattern includes several small streams and tributaries that eventually connect to larger river systems in the region.
Solar PV Suitability in Surrounding Areas
For large-scale solar photovoltaic development, the areas to the north and northwest of Barrinha present particularly favorable conditions. These zones feature more extensive flat plateaus with minimal shading obstacles and good solar exposure throughout the day. The gently sloping terrain in these directions would require less grading and site preparation, reducing initial development costs for utility-scale installations. The southwestern regions, extending toward Jaboticabal, also offer promising topographical conditions for solar development. These areas contain expansive agricultural plateaus with consistent elevation profiles that minimize construction challenges. The natural contours of the land in these sectors provide adequate drainage while maintaining the even surfaces ideal for solar array installation. Areas to avoid would include the more steeply inclined sections to the southeast, where the terrain becomes more variable with deeper valleys and pronounced slopes. These topographical features would increase construction complexity and potentially create shading issues that could reduce overall system efficiency. The existing agricultural use of much of the surrounding land presents both challenges and opportunities. While converting productive farmland might face regulatory hurdles, the already cleared nature of these areas means minimal vegetation removal would be required for solar development. The established road network serving agricultural operations would also benefit solar facility construction and maintenance access. Overall, the relatively modest topographical relief throughout the region makes much of the area surrounding Barrinha technically suitable for solar PV development, with the flatter northern and southwestern zones offering the most favorable natural conditions for large-scale installations.Brazil solar PV Stats as a country
Brazil ranks 13th in the world for cumulative solar PV capacity, with 13,708 total MW's of solar PV installed. This means that 2.50% of Brazil's total energy as a country comes from solar PV (that's 31st in the world). Each year Brazil is generating 64 Watts from solar PV per capita (Brazil ranks 47th in the world for solar PV Watts generated per capita). [source]
Are there incentives for businesses to install solar in Brazil?
Yes, there are several incentives for businesses wanting to install solar energy in Brazil. The Brazilian government offers a range of tax credits and other financial incentives to encourage the adoption of renewable energy sources such as solar power. These include reduced import taxes on solar equipment, accelerated depreciation of investments in renewable energy projects, and preferential financing from public banks. Additionally, some states offer additional incentives such as subsidies or grants for businesses that install solar systems.
Do you have more up to date information than this on incentives towards solar PV projects in Brazil? Please reach out to us and help us keep this information current. Thanks!
Citation Guide
Article Details for Citation
Author: Aaron Robinson
Publisher: profileSOLAR.com
First Published: Sunday 29th of June 2025
Last Updated: Tuesday 5th of August 2025
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Compare this location to others worldwide for solar PV potential
The solar PV analyses available on our website, including this one, are offered as a free service to the global community. Our aim is to provide education and aid informed decision-making regarding solar PV installations.
However, please note that these analyses are general guidance and may not meet specific project requirements. For in-depth, tailored forecasts and analysis crucial for feasibility studies or when pursuing maximum ROI from your solar projects, feel free to contact us; we offer comprehensive consulting services expressly for this purpose.
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Calculate Your Optimal Solar Panel Tilt Angle: A Comprehensive Guide
Enhance your solar panel's performance with our in-depth guide. Determine the best tilt angle using hard data, debunk common misunderstandings, and gain insight into how your specific location affects solar energy production.




