Saubara, Bahia, Brazil presents an excellent location for year-round solar photovoltaic energy generation. Located in the tropics at coordinates -12.7652, -38.805, this area benefits from consistent sunlight throughout most of the year, with seasonal variations characterized more by wet and dry periods rather than dramatic temperature changes.

Solar Energy Production Potential

The solar energy output data for Saubara demonstrates strong year-round production capabilities. Summer delivers the highest energy generation at 6.19 kWh per day per kW of installed solar capacity, followed closely by spring at 5.98 kWh per day. Autumn maintains solid production levels at 5.59 kWh per day, while winter shows the lowest but still substantial output at 4.53 kWh per day per kW installed. The most productive periods for solar generation occur during summer and spring months, when energy output exceeds nearly 6 kWh per day per kW. Even during the least productive winter season, the location still generates over 4.5 kWh per day per kW, indicating reliable year-round solar potential. For optimal performance, solar panels should be installed at a fixed tilt angle of 12 degrees facing north. This angle maximizes total year-round energy production by accounting for the sun's varying elevation throughout the seasons and the Earth's elliptical orbit pattern.

Environmental and Weather Challenges

Several local factors could potentially impact solar energy production in Saubara. The tropical climate brings distinct wet and dry seasons, with the rainy period potentially reducing solar irradiance due to increased cloud cover and atmospheric moisture. Extended periods of heavy rainfall and overcast skies during wet months can temporarily decrease energy output. High humidity levels common in coastal tropical regions can lead to moisture-related issues with solar equipment. Salt air from the nearby Atlantic coast may cause corrosion of metal components and degradation of electrical connections over time. The tropical environment also supports vegetation growth that could create shading issues if not properly managed.

Preventative Installation Measures

To maximize energy production despite these challenges, several installation strategies should be implemented:

• Use corrosion-resistant materials and marine-grade components designed for coastal environments
• Apply protective coatings to metal frames and mounting hardware to prevent salt air damage
• Install panels with adequate spacing for air circulation to reduce moisture buildup
• Implement proper drainage systems to prevent water accumulation around equipment
• Plan regular cleaning schedules to remove salt deposits, dust, and organic matter from panel surfaces

Vegetation management around the solar installation site is crucial. Regular trimming of nearby trees and bushes prevents shading that could significantly reduce energy output. Additionally, choosing high-quality inverters and electrical components rated for tropical conditions ensures reliable operation in high humidity and temperature variations. Proper grounding and surge protection systems become especially important in tropical locations prone to thunderstorms during wet seasons. These protective measures help safeguard the solar installation from lightning strikes and electrical surges that are more common in tropical climates.

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 Saubara

Seasonal solar PV output for Latitude: -12.7652, Longitude: -38.805 (Saubara, 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 Saubara, Brazil

To maximize your solar PV system's energy output in Saubara, Brazil (Lat/Long -12.7652, -38.805) 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 Saubara, 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 Saubara, 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	19° 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 Saubara, 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 Saubara, 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 Saubara, Brazil

Topographical Features of Saubara Region

Saubara is situated in the state of Bahia, Brazil, positioned along the eastern shore of Todos os Santos Bay. The municipality sits on relatively flat coastal terrain that transitions from sea level to gently rolling hills as one moves inland. The immediate coastal area features low-lying plains and tidal flats, with elevations rarely exceeding 50 meters above sea level within the first few kilometers from the shoreline.

The landscape is characterized by a mix of coastal lowlands and modest undulating terrain typical of the Recôncavo Baiano region. Small streams and seasonal waterways create shallow valleys that cut through the otherwise gentle topography. The soil composition varies from sandy coastal deposits near the bay to clay-rich soils further inland, reflecting the area's geological history as part of the larger sedimentary basin.

Moving away from the immediate coastline, the terrain gradually rises into low hills and plateaus that form part of the broader Atlantic coastal plain. These elevated areas typically reach heights of 100 to 200 meters above sea level and offer expansive views across the surrounding countryside. The vegetation transitions from coastal scrubland and mangrove areas near the water to mixed agricultural lands and patches of Atlantic Forest remnants on the higher ground.

Optimal Areas for Large-Scale Solar Development

The most suitable locations for extensive solar photovoltaic installations would be found on the elevated plateaus and gentle slopes located 5 to 15 kilometers inland from Saubara's coastline. These areas combine several advantageous characteristics: relatively flat or gently sloping terrain that minimizes grading requirements, stable soil conditions for foundation work, and sufficient elevation to avoid potential flooding issues.

The rolling hills to the northwest and west of Saubara present particularly promising opportunities. These locations offer large contiguous areas of open land with minimal existing development, reducing land acquisition complexities. The terrain in these areas typically features gradual slopes of less than 10 degrees, which is ideal for solar panel installation while still providing natural drainage.

Areas along the BR-324 highway corridor, which passes through the broader region, would also be well-suited for solar development due to their accessibility and relatively flat topography. The proximity to existing transportation infrastructure would facilitate construction logistics and ongoing maintenance operations. Additionally, these inland locations are removed from the more humid coastal microclimate while still benefiting from the region's favorable solar resource.

The eastern portions of the municipality, where the terrain rises into low plateaus, offer another excellent opportunity for solar development. These areas typically feature stable, well-drained soils and minimal vegetation cover, reducing environmental impact concerns. The elevated position also provides natural advantages for electrical transmission connections to the regional grid infrastructure.

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.