Marechal Deodoro in Brazil presents a highly favorable location for year-round solar energy generation. Located in the tropical zone at coordinates -9.7122, -35.9037, this area benefits from consistent sunlight throughout most of the year, with seasonal variations characterized more by wet and dry periods than traditional temperature-based seasons.

Solar Energy Production Potential

The solar energy output at Marechal Deodoro shows excellent potential across all seasons. Spring delivers the highest production at 7.27 kWh per day per kW of installed solar capacity, closely followed by summer at 7.02 kWh per day. Even during the lower-producing seasons, the location maintains strong output with autumn generating 6.10 kWh per day and winter producing 5.28 kWh per day per kW installed. The most productive periods for solar generation occur during spring and summer months, when the sun's position maximizes energy capture. However, the relatively modest seasonal variation means that solar installations remain productive throughout the entire year, making this an ideal location for consistent renewable energy generation.

Optimal Panel Configuration

For maximum year-round solar production at this location, fixed solar panels should be tilted at 8 degrees toward the north. This optimal angle is calculated by analyzing daily solar elevation angles at the specific latitude, determining daily optimal panel positioning, and weighting these angles using solar irradiance data while accounting for Earth's elliptical orbit around the sun.

Environmental and Weather Challenges

Several local factors could potentially impact solar energy production at Marechal Deodoro:

• High humidity and salt air exposure due to coastal proximity
• Intense tropical rainfall during wet seasons
• Strong coastal winds
• Dust and debris accumulation on panels

The coastal location means solar panels will face exposure to salt-laden air, which can accelerate corrosion of metal components and reduce panel efficiency over time. The tropical climate brings periods of heavy rainfall that, while helpful for natural panel cleaning, can also lead to water damage if installations aren't properly sealed.

Preventative Measures for Optimal Performance

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

• Use marine-grade aluminum mounting systems and stainless steel hardware resistant to salt corrosion
• Apply protective coatings to all metal components
• Ensure proper drainage systems to handle heavy tropical rainfall
• Install panels with adequate spacing for air circulation to reduce humidity buildup
• Implement regular cleaning schedules to remove salt deposits and accumulated debris

Regular maintenance becomes particularly important in this environment. Monthly inspections should check for signs of corrosion, loose connections, and panel cleanliness. The intense tropical sun, while beneficial for energy production, can also accelerate wear on system components, making quality equipment selection and professional installation essential for long-term reliability. Despite these considerations, Marechal Deodoro's consistent high solar output throughout the year makes it an excellent location for solar energy investment, provided that proper installation techniques and maintenance practices are followed to address the local environmental conditions.

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 Marechal Deodoro

Seasonal solar PV output for Latitude: -9.7122, Longitude: -35.9037 (Marechal Deodoro, 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 Marechal Deodoro, Brazil

To maximize your solar PV system's energy output in Marechal Deodoro, Brazil (Lat/Long -9.7122, -35.9037) 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 Marechal Deodoro, 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 Marechal Deodoro, 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	16° 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 Marechal Deodoro, 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 Marechal Deodoro, 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 Marechal Deodoro, Brazil

Topographical Features of Marechal Deodoro

Marechal Deodoro sits in the coastal lowlands of Alagoas state in northeastern Brazil, positioned along the Atlantic Ocean shoreline. The terrain around this historic city is characterized by relatively flat to gently rolling topography, with elevations typically ranging from sea level to modest hills reaching approximately 100 meters above sea level. The landscape features a mix of coastal plains, lagoons, and low-lying areas that extend inland from the ocean. The region forms part of the broader Atlantic coastal plain that stretches along much of Brazil's northeastern coastline. Sandy soils dominate much of the area, interspersed with patches of clay and organic matter near water bodies. The topography includes several lagoons and wetland areas, most notably the Mundaú Lagoon system that borders the municipality. These water features create a complex mosaic of land and water that influences the local microclimate and drainage patterns. Moving inland from the coast, the terrain gradually transitions from flat coastal areas to gently undulating hills. The elevation changes are generally gradual rather than steep, creating a landscape that appears relatively uniform when viewed from a distance. Small valleys and depressions dot the countryside, often containing seasonal streams or supporting agricultural activities.

Optimal Areas for Large-Scale Solar Development

The most suitable locations for large-scale solar photovoltaic installations around Marechal Deodoro would be the elevated inland areas that rise above the coastal floodplains. These higher elevations, typically found 10 to 20 kilometers inland from the coast, offer several advantages for solar development. The terrain in these areas tends to be more stable and less prone to flooding, while still maintaining the relatively flat to gently sloping characteristics ideal for solar panel installation. The agricultural areas southwest and west of Marechal Deodoro present particularly promising opportunities for solar development. These zones feature well-drained soils on slightly elevated terrain that avoids the wetland complexes closer to the coast. The land use in these areas is predominantly pastoral or devoted to small-scale agriculture, making it potentially available for alternative uses without conflicting with sensitive ecological areas. Areas to avoid for solar installations include the immediate coastal zone, which faces challenges from salt air corrosion, potential storm surge, and sandy soils that may not provide adequate foundation support. The wetland areas and regions adjacent to the lagoon systems should also be avoided due to environmental sensitivity, potential flooding, and unstable ground conditions. Additionally, the lowest-lying areas throughout the region may experience seasonal water accumulation that could interfere with solar facility operations. The northwestern sections of the municipality, where the terrain begins to rise toward the interior highlands of Alagoas, offer the best combination of stable ground conditions, adequate drainage, and minimal environmental constraints. These areas typically feature gentle slopes that can be easily graded for solar panel installation while maintaining good drainage characteristics essential for long-term facility operation.

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.