Assis Chateaubriand, Paraná, Brazil, located in the Southern Sub Tropics, shows strong potential for year-round solar energy generation, though with notable seasonal variations that make certain times of the year significantly more productive than others.
Seasonal Solar Performance
The location demonstrates excellent summer performance, generating 7.14 kWh per day per kW of installed solar capacity during the peak season. This represents the ideal time for solar generation at this location, when the sun's angle and intensity are most favorable for energy production. Spring offers the second-best performance at 6.09 kWh per day per kW, making it another highly productive season. Autumn drops to 5.41 kWh per day per kW, which is still reasonable for solar generation, while winter shows the lowest output at 4.08 kWh per day per kW. For optimal year-round performance, fixed solar panels at this location should be tilted at 22 degrees North. This angle maximizes total annual production by accounting for the sun's path throughout the year and the location's specific latitude.Environmental and Weather Factors
Several local factors could potentially impact solar production at Assis Chateaubriand and require consideration during installation planning. The subtropical climate brings high humidity levels, which can reduce solar panel efficiency and create condensation issues. Additionally, this region experiences significant rainfall during certain periods, which can temporarily reduce solar output and create maintenance challenges. Strong winds are common in this area of Brazil and can pose structural risks to solar installations. The combination of high humidity and temperature fluctuations can also accelerate equipment degradation over time.Preventative Measures for Optimal Performance
To maximize energy production despite these environmental challenges, several installation strategies should be implemented:- Install panels with adequate ventilation spacing underneath to improve air circulation and reduce heat buildup
- Use corrosion-resistant mounting hardware and frames designed for high-humidity environments
- Implement robust structural mounting systems capable of withstanding strong winds
- Choose panels with anti-reflective coatings that perform well in humid conditions
- Establish regular cleaning schedules to remove dust and debris that accumulate more quickly in humid climates
Note: The Southern Sub Tropics extend from -23.5° latitude South down to -35° latitude.
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 Assis Chateaubriand
Seasonal solar PV output for Latitude: -24.4049, Longitude: -53.5308 (Assis Chateaubriand, 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 22° North in Assis Chateaubriand, Brazil
To maximize your solar PV system's energy output in Assis Chateaubriand, Brazil (Lat/Long -24.4049, -53.5308) throughout the year, you should tilt your panels at an angle of 22° 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 Assis Chateaubriand, 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 Assis Chateaubriand, Brazil. As mentioned earlier, for fixed-panel solar PV installations, it is optimal to maintain a 22° North tilt angle throughout the year.
| Overall Best Summer Angle | Overall Best Autumn Angle | Overall Best Winter Angle | Overall Best Spring Angle |
|---|---|---|---|
| 8° North in Summer | 30° North in Autumn | 40° North in Winter | 17° 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 Assis Chateaubriand, 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 Assis Chateaubriand, 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 Assis Chateaubriand, Brazil
Topographical Features of Assis Chateaubriand
Assis Chateaubriand sits within the gently rolling landscape of western Paraná state in Brazil, characterized by relatively flat to moderately undulating terrain. The region forms part of the Paraná Plateau, a vast elevated plain that extends across much of southern Brazil. Elevations in the immediate area typically range between 400 and 500 meters above sea level, with gradual slopes and broad, open valleys that create an accessible landscape for development. The topography consists primarily of low hills and wide plateaus separated by shallow valleys carved by small streams and tributaries. These waterways flow generally westward toward the Paraná River system, creating a drainage pattern that has shaped the land into gentle ridges and broad interfluves. The terrain lacks dramatic elevation changes, with most slopes remaining under 10 degrees, making the area highly suitable for various land uses including agriculture and infrastructure development.Soil and Land Use Characteristics
The underlying geology consists of basaltic rock formations from ancient lava flows, which have weathered over millions of years to create the region's characteristic red soils known as terra roxa. These fertile soils have made the area highly productive for agriculture, with extensive soybean, corn, and wheat cultivation dominating the landscape. Large agricultural fields stretch across the rolling terrain, creating vast open spaces with minimal natural vegetation remaining. The agricultural nature of the land use has resulted in relatively few obstacles to large-scale development projects. Most of the original Atlantic Forest that once covered this region has been cleared for farming, leaving a landscape of cultivated fields interspersed with small woodlots and riparian forests along waterways.Optimal Areas for Solar Development
The most suitable locations for large-scale solar photovoltaic installations would be found on the elevated plateaus and gentle south-facing slopes throughout the region. These areas offer several advantages including stable, well-drained soils, minimal slope gradients that reduce construction complexity, and excellent accessibility via the existing network of rural roads developed to serve the agricultural sector. The broad plateau areas extending north and east of Assis Chateaubriand present particularly favorable conditions. These locations typically feature expansive flat to gently rolling terrain with minimal shading from topographical features. The agricultural fields in these areas often span several hundred hectares of continuous, relatively level ground that could accommodate large solar arrays with minimal site preparation. Areas along the higher ridgelines and interfluves between drainage basins would be especially well-suited for solar development. These elevated positions benefit from consistent air circulation that helps maintain optimal panel temperatures, while the gentle slopes provide natural drainage and reduce the risk of flooding during heavy rainfall periods common in the region. The western portions of the municipality, where the terrain begins its gradual descent toward the Paraná River valley, also offer excellent potential. Here, the landscape opens into broad, gently sloping plains with minimal topographical barriers and good access to existing electrical transmission infrastructure that serves the agricultural operations and nearby urban centers.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: Saturday 26th of July 2025
Last Updated: Thursday 7th 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.
Helping you assess viability of solar PV for your site
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.




