Solar Energy Potential in Crissiumal, Rio Grande do Sul, Brazil
Crissiumal, Rio Grande do Sul, Brazil, located in the Southern Sub Tropics, offers varying potential for solar PV energy generation throughout the year. This location experiences significant seasonal fluctuations in solar energy production that prospective solar installers should consider. The solar energy output in Crissiumal follows a predictable seasonal pattern. Summer months are the most productive, generating approximately 7.39kWh per day for each kilowatt of installed solar capacity. Spring follows as the second most productive season with 5.93kWh/day per kW. Autumn yields a moderate 5.02kWh/day, while winter shows the lowest production at just 3.72kWh/day per kW installed. This seasonal variation means that Crissiumal residents can expect approximately twice the solar energy production in summer compared to winter months. This pattern is typical for locations in the Southern Sub Tropics, where the sun's position changes significantly throughout the year.Optimal Panel Installation
For fixed solar panel installations in Crissiumal, Rio Grande do Sul, the ideal tilt angle to maximize year-round energy production is 24 degrees facing North. This specific angle has been calculated taking into account the location's latitude, the earth's elliptical orbit, and weighted by the daily PV potential using NASA's solar irradiance data. This optimal angle represents a compromise that balances energy production across all seasons. While a steeper angle might improve winter production and a flatter angle might favor summer, the 24-degree north-facing tilt provides the best overall annual energy harvest.Environmental and Weather Considerations
Several environmental factors could potentially impact solar production in Crissiumal:- Seasonal rainfall patterns may reduce solar efficiency during wetter periods
- Dust and agricultural particulate matter in this rural region can accumulate on panels
- Occasional hail storms in the region pose a physical risk to installations
- Morning fog or mist in valley areas could delay peak production hours
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 Crissiumal
Seasonal solar PV output for Latitude: -27.4787, Longitude: -54.1454 (Crissiumal, 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 24° North in Crissiumal, Brazil
To maximize your solar PV system's energy output in Crissiumal, Brazil (Lat/Long -27.4787, -54.1454) throughout the year, you should tilt your panels at an angle of 24° 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 Crissiumal, 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 Crissiumal, Brazil. As mentioned earlier, for fixed-panel solar PV installations, it is optimal to maintain a 24° North tilt angle throughout the year.
| Overall Best Summer Angle | Overall Best Autumn Angle | Overall Best Winter Angle | Overall Best Spring Angle |
|---|---|---|---|
| 11° North in Summer | 33° North in Autumn | 42° North in Winter | 20° 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 Crissiumal, 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 Crissiumal, 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 Crissiumal, Brazil
Crissiumal is located in the northwestern part of Rio Grande do Sul state in southern Brazil. The topography around Crissiumal is characterized by gently rolling hills and plateaus, typical of the transition zone between the southern Brazilian highlands and the Uruguayan pampa. The terrain features moderate elevation changes with altitudes generally ranging between 200 and 400 meters above sea level. The landscape is dissected by numerous small rivers and streams that form part of the Uruguay River basin, with the Uruguay River itself flowing approximately 30 kilometers to the west of Crissiumal. These waterways have carved shallow valleys throughout the region, creating a pattern of ridges and depressions that define the local topography.
Vegetation and Land Use
The natural vegetation of the area was originally a mix of Atlantic Forest and grasslands, though much of this has been converted to agricultural land. Today, the countryside around Crissiumal displays a patchwork of crop fields, pastures, and remnant forest fragments, particularly along watercourses and on steeper slopes.Potential Areas for Solar PV Development
For large-scale solar photovoltaic installations, the gently sloping plateaus to the east and northeast of Crissiumal present the most favorable topography. These areas offer relatively flat terrain with good drainage and minimal shading from surrounding features. The elevated nature of these plateaus also means they receive consistent solar radiation throughout the day. The northwestern sector beyond Crissiumal, extending toward the Uruguay River, also contains extensive areas of open, gently sloping land that would be conducive to solar development. These areas benefit from good exposure to the northern sun path, which is optimal for solar generation in the Southern Hemisphere. Areas to avoid for solar development include the steeper slopes found in some of the river valleys, particularly those with north-facing aspects (which receive less direct sunlight in the Southern Hemisphere), and locations with remnant forest cover that would require significant clearing.Infrastructure Considerations
The existing road network around Crissiumal provides reasonable access to many of the potentially suitable areas for solar development. The municipality is connected to regional highways that could facilitate the transportation of equipment and materials needed for large-scale installations. It's worth noting that the regional topography, while varied, does not present extreme challenges for solar development as might be found in more mountainous regions of Brazil. The moderate relief of the landscape means that extensive earthworks would generally not be required for solar farm construction in the more favorable areas identified above.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!
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Article Details for Citation
Author: Aaron Robinson
Publisher: profileSOLAR.com
First Published: Saturday 19th of July 2025
Last Updated: Monday 21st of July 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.




