Solar Energy Potential in Atalaia, Alagoas, Brazil

Atalaia, Alagoas, Brazil, located at latitude -9.5338 and longitude -36.0748, offers promising conditions for solar energy generation throughout the year. This tropical location benefits from relatively consistent sunlight patterns, though with some seasonal variations between wet and dry periods rather than the more dramatic temperature shifts seen in temperate regions. The solar electricity production data shows significant potential across all seasons. Spring delivers the highest output at 7.02 kWh per day for each kilowatt installed, closely followed by summer at 6.86 kWh/day. Autumn shows a moderate decrease to 5.67 kWh/day, while winter represents the lowest production period with 4.87 kWh/day per kilowatt installed. For fixed solar panel installations in Atalaia, Alagoas, the ideal tilt angle to maximize year-round energy production is 8 degrees facing North. This specific angle has been calculated by analyzing solar elevation patterns at this latitude, weighted by the daily photovoltaic potential throughout the year.

Seasonal Considerations

The spring and summer months clearly represent the peak production periods in Atalaia, Alagoas, making these seasons particularly valuable for solar energy generation. While winter shows a reduction in output, it's worth noting that even this "low" season produces nearly 5 kWh per day per kilowatt installed, which remains substantial compared to many non-tropical locations worldwide. The relatively modest variation between seasons (approximately 2.15 kWh/day difference between the highest and lowest producing seasons) demonstrates the advantage of Atalaia's tropical location for consistent solar production throughout the year.

Potential Challenges and Mitigation Strategies

Several environmental factors could potentially impact solar production in Atalaia:

• Heavy rainfall during wet seasons may reduce solar exposure and efficiency. Installing panels with proper drainage systems and water-resistant components can minimize these effects.
• High humidity levels can accelerate corrosion of mounting hardware and electrical connections. Using marine-grade materials and protective coatings can significantly extend system lifespan.
• Tropical dust and pollen accumulation may gradually reduce panel efficiency. Implementing regular cleaning schedules and potentially automated cleaning systems can maintain optimal performance.

Additionally, the region may experience occasional tropical storms that could physically damage installations. Robust mounting systems designed to withstand high winds, combined with comprehensive insurance coverage, provide important protection against such events. Despite these considerations, Atalaia's consistent solar radiation throughout the year makes it an excellent candidate for solar PV installations, with even the lowest-producing season delivering meaningful energy output.

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 Atalaia

Seasonal solar PV output for Latitude: -9.5338, Longitude: -36.0748 (Atalaia, 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 8° North in Atalaia, Brazil

To maximize your solar PV system's energy output in Atalaia, Brazil (Lat/Long -9.5338, -36.0748) throughout the year, you should tilt your panels at an angle of 8° 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 Atalaia, 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 Atalaia, Brazil. As mentioned earlier, for fixed-panel solar PV installations, it is optimal to maintain a 8° 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	3° 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 Atalaia, 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 Atalaia, 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 Atalaia, Brazil

The region around Atalaia, Brazil showcases a diverse topographical landscape characteristic of northeastern Brazil's transition between coastal and interior zones. Located in the state of Alagoas, Atalaia sits approximately 48 kilometers inland from the Atlantic coast. The terrain is predominantly characterized by gently rolling hills and shallow valleys, with elevation gradually increasing as one moves westward from the coastal plains. The immediate vicinity of Atalaia features modest elevations ranging from approximately 50 to 150 meters above sea level. The landscape has been significantly shaped by the regional river systems, particularly the Paraíba River and its tributaries, which have carved shallow valleys throughout the area. These waterways have created natural divisions in the topography, resulting in a patchwork of elevated plateaus and lowland areas.

Soil and Surface Characteristics

The soil composition around Atalaia varies but generally consists of clay-rich soils in the lowlands and more sandy, well-drained soils in elevated areas. Much of the native Atlantic Forest vegetation has been historically cleared for agriculture, particularly sugarcane cultivation, which dominates the rural landscape. This agricultural development has modified the natural contours of the land through decades of farming activities. The region experiences a tropical climate with distinct wet and dry seasons, which has influenced erosion patterns and surface water distribution. During rainy periods, the numerous small streams and drainage channels become active, while many remain dry during other parts of the year.

Optimal Areas for Solar PV Development

For large-scale solar photovoltaic installations, the gently elevated plateaus to the west and northwest of Atalaia present the most favorable conditions. These areas combine several advantageous characteristics: The higher elevation terrains approximately 10-15 kilometers northwest of Atalaia offer relatively flat plateaus with minimal shading from surrounding topographical features. These plateaus, ranging from 100-200 meters in elevation, provide excellent exposure to solar radiation throughout the day. The drier, less fertile lands that extend toward the interior of Alagoas state also present opportunities for solar development with minimal displacement of productive agricultural activities. These areas typically have sparse vegetation and reduced agricultural value compared to the more fertile river valleys. The northeastern corridors leading toward Flexeiras and the southwestern zones approaching Capela also feature suitable topography for solar installations, with adequate drainage and stable geological foundations. These areas have sufficient space for large-scale developments while maintaining reasonable proximity to existing electrical infrastructure. Areas to avoid include the immediate river valleys, which may be subject to seasonal flooding, and the more densely vegetated sections that would require significant clearing. Additionally, the steeper hillsides, though limited in this region, would present construction challenges and increased costs for solar array installation. The relatively stable geological conditions of the region also mean minimal risk of landslides or significant ground shifting, creating favorable conditions for the long-term stability of solar infrastructure. The predominantly clay and sandy soils provide adequate support for standard solar mounting systems without requiring extraordinary foundational work.

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.