Solar Energy Potential in Ribeira do Pombal, Brazil
Ribeira do Pombal, Brazil, located at latitude -10.6326 and longitude -38.5047, presents a highly favorable location for solar photovoltaic (PV) energy generation throughout the year. This tropical location benefits from consistent sunlight patterns that make solar energy a reliable resource across all seasons. The seasonal energy production patterns show impressive consistency. During summer months, each kilowatt of installed solar capacity produces approximately 6.49 kWh per day. Spring offers nearly identical performance with 6.50 kWh per day. Autumn sees a slight decrease to 5.71 kWh per day, while winter represents the annual low point with 5.00 kWh per day per installed kilowatt.Seasonal Variations and Optimal Production Periods
The relatively small variation between seasons indicates that Ribeira do Pombal enjoys reliable solar energy potential year-round. The highest production occurs during spring and summer, making these seasons particularly advantageous for solar energy harvesting. Even during winter, which shows the lowest output, the production remains substantial at 5.00 kWh per day. For fixed solar panel installations in this location, the ideal tilt angle is 9 degrees facing North. This specific angle has been calculated to maximize total year-round energy production based on the location's position in the Southern Hemisphere. This modest tilt helps optimize energy capture across all seasons while accounting for the region's proximity to the equator.Environmental and Weather Considerations
Several environmental factors could potentially impact solar production in Ribeira do Pombal:- Seasonal rainfall patterns during the wet season may reduce solar efficiency due to cloud cover and precipitation. Installing panels with high-efficiency ratings that perform better in diffuse light conditions can help mitigate this issue.
- Dust accumulation is a concern in tropical regions, particularly during dry seasons. Implementing regular cleaning schedules or automated cleaning systems can prevent significant production losses.
- High temperatures in tropical regions can reduce panel efficiency. Using panels with lower temperature coefficients and ensuring proper ventilation behind panels can minimize temperature-related losses.
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 Ribeira Do Pombal
Seasonal solar PV output for Latitude: -10.6326, Longitude: -38.5047 (Ribeira Do Pombal, 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 9° North in Ribeira Do Pombal, Brazil
To maximize your solar PV system's energy output in Ribeira Do Pombal, Brazil (Lat/Long -10.6326, -38.5047) throughout the year, you should tilt your panels at an angle of 9° 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 Ribeira Do Pombal, 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 Ribeira Do Pombal, Brazil. As mentioned earlier, for fixed-panel solar PV installations, it is optimal to maintain a 9° North tilt angle throughout the year.
| Overall Best Summer Angle | Overall Best Autumn Angle | Overall Best Winter Angle | Overall Best Spring Angle |
|---|---|---|---|
| 5° South in Summer | 16° North in Autumn | 26° North in Winter | 5° 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 Ribeira Do Pombal, 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 Ribeira Do Pombal, 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 Ribeira Do Pombal, Brazil
The topography around Ribeira do Pombal, Brazil reveals a diverse landscape characterized by undulating terrain with moderate hills and valleys typical of northeastern Brazil's interior. Located in the state of Bahia, this region sits within what is known as the agreste zone, a transitional area between the more humid coastal zone (zona da mata) and the arid sertão interior. The elevation around Ribeira do Pombal generally ranges between 200-400 meters above sea level, creating a gently rolling landscape. The area features numerous small rivers and streams that have carved shallow valleys through the terrain over time. The Itapicuru River basin influences much of the local hydrology, with seasonal water flows dependent on the region's rainfall patterns.
Landforms and Vegetation
The natural vegetation in this region consists primarily of caatinga, a distinctive type of dry forest and scrubland native to northeastern Brazil. This vegetation adapts to the semi-arid climate, with plants that have evolved to withstand extended dry periods. The landscape includes scattered rock outcroppings and exposed soil in some areas, particularly on hillsides. The soil composition tends to be relatively thin and sometimes rocky, especially on higher elevations and slopes. Lower-lying areas may have accumulated deeper soil deposits suitable for agriculture, though fertility varies considerably across the region.Potential for Solar PV Development
Several areas near Ribeira do Pombal present favorable conditions for large-scale solar photovoltaic installations. The most suitable locations would include: The elevated plateaus to the west and southwest of the town offer ideal conditions for solar development. These areas typically feature relatively flat terrain at higher elevations, minimizing shadowing effects while providing good exposure to sunlight throughout the day. The soil in these locations is often less productive for agriculture, making them appropriate for alternative land use. The gently sloping lands to the northeast also present opportunities for solar development, particularly where the gradient faces south or southwest. These areas generally have good drainage characteristics, reducing flood risks that could potentially damage infrastructure.Topographical Considerations
When evaluating specific sites for solar installations, several topographical factors merit consideration. Areas with slopes greater than 10% would require additional engineering considerations and potentially increased construction costs. The steeper hills scattered throughout the region, particularly to the southeast, would generally be less suitable due to increased shadowing and construction challenges. Low-lying areas near water courses should be avoided due to potential flooding during the rainy season. While the region experiences extended dry periods, seasonal rains can be intense, creating flash flood risks in certain valleys and depressions. The accessibility of potential sites is another important consideration influenced by topography. The existing road network tends to follow natural contours of the land, with better access to areas of moderate elevation. The more rugged terrain may require significant infrastructure development to support construction and maintenance of solar facilities. Overall, the topography around Ribeira do Pombal offers numerous viable options for solar PV development, with the western plateaus and northeastern slopes representing the most promising areas when considering the balance of solar exposure, land suitability, and accessibility.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 28th of June 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.




