Sobradinho, Brazil presents an excellent location for year-round solar energy generation, with consistently high electricity output throughout all seasons. Located in the tropical region where sunlight remains relatively stable year-round, this area experiences predictable energy production patterns that make it highly suitable for solar PV installations.

Seasonal Solar Performance

The solar energy output at Sobradinho shows impressive consistency across all seasons. Spring emerges as the peak production period, generating 7.03 kWh per day for each kW of installed solar capacity. Summer follows closely with 6.29 kWh/day, while autumn maintains strong performance at 6.06 kWh/day. Even during winter, the lowest production season, the location still delivers a robust 5.85 kWh/day per kW installed. This seasonal variation of only about 1.2 kWh/day between peak and minimum production demonstrates the location's reliability for solar energy generation. The relatively small seasonal fluctuation means solar installations can provide dependable energy output throughout the entire year.

Optimal Panel Configuration

For maximum year-round energy production at Sobradinho, solar panels should be installed at a fixed tilt angle of 9 degrees facing north. This optimal angle is calculated by analyzing daily solar elevation angles at this specific latitude, determining daily optimal panel positioning, and weighting these angles according to solar irradiance data while accounting for Earth's elliptical orbit around the sun.

Environmental and Weather Considerations

Several local factors could potentially impact solar energy production in Sobradinho and require careful consideration during installation:

• Dust and sand accumulation: The semi-arid climate typical of this region of Brazil can lead to significant dust buildup on solar panels, reducing their efficiency over time
• Intense UV exposure: The tropical location means solar equipment faces constant high-intensity ultraviolet radiation, which can accelerate degradation of panel materials and mounting systems
• Seasonal rainfall patterns: While wet and dry seasons are characteristic of tropical regions, extended dry periods can increase dust accumulation, while intense rainfall during wet seasons may cause temporary shading from storm clouds
• High ambient temperatures: Tropical heat can reduce solar panel efficiency, as photovoltaic cells typically produce less electricity as temperatures rise

Preventative Measures for Optimal Performance

To maximize energy production and system longevity, several installation strategies should be implemented:

• Regular cleaning systems: Install automated cleaning mechanisms or establish frequent manual cleaning schedules to remove dust and debris, particularly during dry seasons
• Enhanced ventilation: Design mounting systems with adequate air circulation beneath panels to reduce operating temperatures and maintain efficiency
• UV-resistant materials: Select solar panels and mounting hardware specifically rated for high UV exposure and tropical conditions
• Robust drainage: Ensure proper water drainage around installations to prevent water damage during intense rainfall periods
• Quality inverters with cooling: Choose inverters designed for high-temperature operation with adequate cooling systems

Despite these considerations, Sobradinho's consistent solar output throughout the year makes it an ideal location for solar energy investment, with relatively straightforward mitigation strategies available to address potential challenges.

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 Sobradinho, Bahia

Seasonal solar PV output for Latitude: -9.5904, Longitude: -40.7752 (Sobradinho, Bahia, 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 Sobradinho, Bahia, Brazil

To maximize your solar PV system's energy output in Sobradinho, Bahia, Brazil (Lat/Long -9.5904, -40.7752) 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 Sobradinho, Bahia, 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 Sobradinho, Bahia, 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
6° South in Summer	15° North in Autumn	25° North in Winter	4° 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 Sobradinho, Bahia, 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 Sobradinho, Bahia, Brazil.

Our calculation method

1. Solar Position:
   We determine the Sun's position on the Winter solstice using the location's latitude and solar declination.
2. Shadow Projection:
   We calculate the shadow length cast by panels using trigonometry, considering panel tilt and the Sun's elevation angle.
3. 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 Sobradinho, Bahia, Brazil

Topography Around Sobradinho

The region surrounding Sobradinho in northeastern Brazil features a predominantly flat to gently rolling landscape characteristic of the Caatinga biome. This semi-arid terrain sits within the São Francisco River valley, creating a relatively stable topographical foundation with minimal dramatic elevation changes. The area consists mainly of sedimentary plateaus and low hills that rarely exceed modest heights, making it part of the broader Chapada Diamantina geological formation that extends across this portion of Bahia state. The local topography is marked by weathered rock formations and scattered inselbergs - isolated rocky hills that rise from the surrounding plains. These geological features create a varied but generally accessible landscape with gentle slopes and wide valleys. The terrain shows evidence of long-term erosion processes that have smoothed many of the sharper geographical features, resulting in expansive areas of relatively uniform elevation. Seasonal water courses, known locally as intermittent streams, cut shallow channels through the landscape during the rainy season but remain dry for much of the year. These drainage patterns create subtle undulations in the terrain without presenting significant topographical obstacles. The soil composition varies between sandy and clay-rich areas, with rocky outcrops appearing intermittently across the region.

Optimal Areas for Large-Scale Solar Development

The most suitable locations for large-scale solar photovoltaic installations would be the extensive flat plains that stretch southeast and southwest of Sobradinho. These areas offer the ideal combination of minimal slope variation and expansive open spaces necessary for utility-scale solar farms. The relatively uniform elevation across these plains eliminates the need for extensive site preparation or grading work that would increase project costs. Areas with stable sedimentary bedrock provide excellent foundations for solar mounting systems, particularly where the terrain shows minimal seasonal flooding risk. The higher elevation plateaus to the west and northwest of Sobradinho present another attractive option, as these locations benefit from consistent wind patterns that help maintain optimal panel temperatures while offering good drainage characteristics. The region's sparse vegetation coverage means fewer environmental obstacles for development, though careful site selection should avoid areas with significant rocky outcrops that could complicate installation processes. Flat valleys between the low hills offer protected locations that remain accessible for construction equipment while providing natural windbreaks that can reduce dust accumulation on solar panels. Transportation access becomes a crucial factor in site selection, with areas near existing road infrastructure offering significant advantages for construction logistics and ongoing maintenance operations. The relatively stable geological conditions throughout the region mean that most flat areas can support the structural requirements of large solar installations without requiring specialized foundation engineering.

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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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.