Oliveira dos Brejinhos, Brazil represents an excellent location for year-round solar energy generation. Located in the tropics at coordinates -12.3063, -42.6963, this area benefits from consistent sunlight throughout most of the year, with seasons characterized more by wet and dry periods rather than significant temperature variations.
Solar Energy Production Performance
The solar energy output at this location demonstrates remarkably consistent performance across all seasons. Spring emerges as the peak production period, generating 6.95 kWh per day for each kW of installed solar capacity. Summer follows closely with 6.54 kWh/day per kW, while autumn produces 6.44 kWh/day per kW. Even during winter, the lowest production season, the location still generates a substantial 6.19 kWh/day per kW. This seasonal variation of only 0.76 kWh between the highest and lowest producing seasons highlights the location's exceptional stability for solar energy generation. Spring represents the ideal time for maximum solar production, though the consistently high output throughout the year makes this location suitable for reliable renewable energy systems regardless of season.Optimal Panel Installation
For fixed panel installations at Oliveira dos Brejinhos, the ideal tilt angle to maximize total year-round solar production is 12 degrees North. This angle is calculated by analyzing daily solar elevation angles at this specific latitude, determining optimal panel tilt for each day, and weighting these angles according to daily photovoltaic potential using solar irradiance data while accounting for Earth's elliptical orbit.Environmental and Weather Challenges
Several significant environmental factors could potentially impede solar production at this location, requiring careful consideration during installation planning. The tropical climate brings intense seasonal rainfall during wet periods, which can reduce solar irradiance and create challenges for system maintenance. Heavy rains may also lead to increased humidity levels that can affect electrical components over time. Additionally, the region's tropical location means exposure to strong ultraviolet radiation, which can accelerate degradation of solar panel materials and mounting systems. Dust accumulation presents another significant challenge, particularly during dry seasons when reduced rainfall means less natural cleaning of panel surfaces. The tropical environment also increases the risk of vegetation growth that could create shading issues if not properly managed.Preventative Measures for Optimal Performance
Several preventative measures can help ensure maximum energy production despite these environmental challenges:- Install panels with enhanced drainage systems and corrosion-resistant mounting hardware designed for high-humidity tropical environments
- Implement regular cleaning schedules, particularly during dry seasons, to prevent dust buildup that reduces panel efficiency
- Use UV-resistant materials and coatings on all system components to minimize degradation from intense tropical sunlight
- Establish comprehensive vegetation management around installations to prevent shading from fast-growing tropical plants
- Install monitoring systems that can detect performance drops due to environmental factors, enabling prompt maintenance responses
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 Oliveira Dos Brejinhos
Seasonal solar PV output for Latitude: -12.3063, Longitude: -42.6963 (Oliveira Dos Brejinhos, 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 12° North in Oliveira Dos Brejinhos, Brazil
To maximize your solar PV system's energy output in Oliveira Dos Brejinhos, Brazil (Lat/Long -12.3063, -42.6963) throughout the year, you should tilt your panels at an angle of 12° 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 Oliveira Dos Brejinhos, 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 Oliveira Dos Brejinhos, Brazil. As mentioned earlier, for fixed-panel solar PV installations, it is optimal to maintain a 12° North tilt angle throughout the year.
| Overall Best Summer Angle | Overall Best Autumn Angle | Overall Best Winter Angle | Overall Best Spring Angle |
|---|---|---|---|
| 3° South in Summer | 18° North in Autumn | 28° North in Winter | 7° 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 Oliveira Dos Brejinhos, 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 Oliveira Dos Brejinhos, 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 Oliveira Dos Brejinhos, Brazil
Topographical Features of Oliveira dos Brejinhos Region
Oliveira dos Brejinhos sits within the distinctive landscape of Brazil's Bahia state, positioned in the semi-arid interior region known as the Caatinga. The terrain around this municipality is characterized by gently rolling hills and low-lying valleys, with elevations typically ranging between 400 and 600 meters above sea level. The topography features a series of undulating plains punctuated by scattered rocky outcrops and small mountain ranges that create a varied but generally accessible landscape.
The region displays the classic features of the Brazilian Northeast's interior, with broad plateaus and shallow depressions that form natural drainage basins. These areas often contain seasonal streams and small reservoirs that fill during the rainy season. The terrain is predominantly composed of crystalline basement rocks covered by thin soils, creating relatively stable ground conditions with minimal risk of significant geological instability.
Vegetation and Land Use Patterns
The natural vegetation consists primarily of Caatinga scrubland, featuring drought-resistant trees and shrubs that have adapted to the semi-arid climate. This sparse vegetation coverage means that large areas of land remain relatively open, with scattered thorny bushes and small trees that lose their leaves during dry periods. Agricultural activities in the region focus mainly on cattle ranching and small-scale farming, utilizing the flatter areas and valley floors where soil conditions are more favorable.
Much of the surrounding landscape consists of open rangeland with minimal tree coverage, creating extensive areas of relatively flat or gently sloping terrain. The existing land use patterns typically involve low-intensity agriculture and livestock grazing, which means that large tracts of land could potentially be repurposed without significant environmental disruption.
Optimal Areas for Large-Scale Solar Development
The most suitable locations for major solar photovoltaic installations would be the extensive plateau areas located to the north and northeast of Oliveira dos Brejinhos. These elevated plains offer several advantages including consistent gentle slopes of less than five degrees, minimal vegetation that would require clearing, and stable geological conditions suitable for supporting large arrays of solar panels.
The broad valley systems found throughout the region also present excellent opportunities for solar development. These areas typically feature flat to gently rolling terrain with good accessibility for construction and maintenance vehicles. The valleys benefit from being naturally sheltered from strong winds while maintaining excellent exposure to solar radiation throughout the day.
Areas with existing cleared land used for cattle grazing would be particularly well-suited for solar installations, as they already have established access roads and minimal environmental barriers to development. The relatively sparse population density in the surrounding countryside means that large-scale solar projects could be developed with minimal impact on local communities while taking advantage of the region's favorable topographical conditions.
The terrain south and west of the municipality offers additional promising locations, where the landscape opens into broader plains with excellent southern exposure. These areas combine the ideal topographical features of gentle slopes, stable soils, and minimal existing development, making them prime candidates for utility-scale solar photovoltaic projects.
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: Friday 18th of July 2025
Last Updated: Wednesday 6th 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.




