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Flag of BrazilSolar PV Analysis of Formosa Da Serra Negra, Brazil

Graph of hourly avg kWh electricity output per kW of Solar PV installed in Formosa Da Serra Negra, Brazil (by season)

Solar Energy Potential in Formosa da Serra Negra, Brazil

Formosa da Serra Negra, Brazil, located at latitude -6.6954 and longitude -46.1954, offers excellent conditions for solar PV energy generation throughout the year. This tropical location benefits from consistent sunlight patterns, making it a promising site for solar energy investments. The seasonal solar production data reveals strong performance across all seasons. Winter stands out as the most productive period with an impressive 6.39 kWh per day for each kilowatt of installed capacity. Autumn follows with 5.74 kWh/day, while Spring delivers 5.58 kWh/day. Summer shows the lowest but still substantial output at 5.05 kWh/day per installed kilowatt. This seasonal pattern indicates that, contrary to many locations worldwide, winter is actually the optimal time for solar generation in Formosa da Serra Negra. The region's tropical climate means that "winter" doesn't bring the reduced sunlight hours typical of higher latitudes, but instead offers clear skies and optimal solar radiation conditions.

Optimal Panel Installation

For fixed solar panel installations in this location, the ideal tilt angle is 8 degrees facing North. This specific angle has been calculated to maximize year-round energy production based on the location's proximity to the equator. The relatively small tilt angle reflects the region's tropical position where the sun passes nearly overhead throughout much of the year.

Environmental Considerations

Several environmental factors could potentially impact solar production in this region:
  • Seasonal rainfall: The tropical location experiences distinct wet and dry seasons, with heavy rains potentially reducing solar output during wet periods. Installing panels with adequate drainage and water-resistant components is essential.
  • Dust and pollen: During dry seasons, accumulation of dust and organic matter can reduce panel efficiency. Regular cleaning schedules and possibly automated cleaning systems should be considered.
  • High humidity: The tropical climate brings high humidity levels that can accelerate degradation of electrical components. Using corrosion-resistant materials and proper sealing is recommended.
To maximize production, installations should incorporate elevated mounting systems with proper ventilation to reduce heat buildup, which can decrease panel efficiency. Additionally, investing in monitoring systems to quickly identify performance issues will help maintain optimal generation throughout the year. The consistent year-round production makes this location ideal for solar energy development, with only minor seasonal fluctuations compared to non-tropical regions. With proper installation techniques addressing the local environmental conditions, Formosa da Serra Negra presents an excellent opportunity for reliable solar energy generation.

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 Formosa Da Serra Negra

Seasonal solar PV output for Latitude: -6.6954, Longitude: -46.1954 (Formosa Da Serra Negra, 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:

Summer
Average 5.05kWh/day in Summer.
Autumn
Average 5.74kWh/day in Autumn.
Winter
Average 6.39kWh/day in Winter.
Spring
Average 5.58kWh/day in Spring.

 

Ideally tilt fixed solar panels 8° North in Formosa Da Serra Negra, Brazil

To maximize your solar PV system's energy output in Formosa Da Serra Negra, Brazil (Lat/Long -6.6954, -46.1954) 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.

The sun
At Latitude: -6.6954, Longitude: -46.1954, the ideal angle to tilt panels is 8° North

Seasonally adjusted solar panel tilt angles for Formosa Da Serra Negra, 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 Formosa Da Serra Negra, 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
9° South in Summer 13° North in Autumn 22° North in Winter 1° North in Spring

Assuming you can modify the tilt angle of your solar PV panels throughout the year, you can optimize your solar generation in Formosa Da Serra Negra, Brazil as follows: In Summer, set the angle of your panels to 9° facing South. In Autumn, tilt panels to 13° facing North for maximum generation. During Winter, adjust your solar panels to a 22° angle towards the North for optimal energy production. Lastly, in Spring, position your panels at a 1° angle facing North to capture the most solar energy in Formosa Da Serra Negra, Brazil.

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 Formosa Da Serra Negra, 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 Formosa Da Serra Negra, 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.






Please enter information above to calculate panel spacing.

Topography for solar PV around Formosa Da Serra Negra, Brazil

Topography of Formosa da Serra Negra Region

Formosa da Serra Negra is situated in the northeastern Brazilian state of Maranhão, in a region characterized by diverse topographical features. The area sits at the transition zone between the Amazon rainforest and the drier Cerrado savanna biome, creating a unique ecological and topographical landscape. The terrain around Formosa da Serra Negra features a combination of rolling hills, plateaus, and valleys. The "Serra Negra" in its name refers to the dark mountain range that defines much of the local landscape. These hills rise gradually from the surrounding areas, with elevations typically ranging between 200 and 500 meters above sea level. The hillsides often display a gentle to moderate slope, creating natural drainage systems that feed into the regional river networks. The region experiences a tropical climate with distinct wet and dry seasons, which has shaped the topography through erosional processes. During the rainy season, water runoff carves small valleys and gullies into the hillsides, while the dry season allows for consolidation of these features. This seasonal cycle has created a landscape of undulating terrain with occasional flat-topped plateaus. Vegetation coverage varies with elevation and exposure, with denser forest cover typically found in the valleys and along watercourses, while the higher elevations and exposed slopes often support more sparse savanna-type vegetation. This variation in vegetative cover influences soil stability and erosion patterns throughout the region.

Solar PV Suitability in the Region

The topographical characteristics of the Formosa da Serra Negra region create several promising areas for large-scale solar photovoltaic (PV) development. The most suitable locations would be the gently sloping plateaus and elevated flat areas that receive consistent solar exposure throughout the day. The higher elevation areas, particularly those on the south-facing slopes of the Serra Negra range, offer excellent potential for solar PV installations. These locations benefit from reduced atmospheric interference due to their elevation and typically experience less cloud cover than the lower valleys. The natural gradient of these slopes also helps minimize shadow interference between solar panels when properly oriented. Areas where the Cerrado vegetation dominates are particularly advantageous for solar development, as the naturally sparse tree cover requires less clearing and creates fewer shading issues. These savanna-like regions typically feature well-drained soils that provide stable foundations for solar infrastructure with minimal preparation. The plateaus north and east of the main Serra Negra formation present especially favorable conditions for large-scale solar projects. These areas combine relatively flat terrain with good drainage characteristics, reducing the risk of flooding during the rainy season while maintaining structural stability throughout the year. Their elevated position also minimizes the risk of shading from surrounding topographical features. Less suitable areas include the steeper hillsides, densely forested valleys, and low-lying regions prone to seasonal flooding. These locations would require significant land modification and vegetation clearing, increasing both the environmental impact and development costs of solar installations. The accessibility of potential solar sites must also be considered within the topographical context. The rolling nature of the landscape means that some otherwise suitable areas may present challenges for transportation and infrastructure development. The most practical locations would balance optimal solar exposure with reasonable access to existing roads and transmission 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!

Citation Guide

Article Details for Citation

Article: Solar PV Analysis of Formosa Da Serra Negra, Brazil
Author: Aaron Robinson
Publisher: profileSOLAR.com
First Published: Sunday 29th of June 2025
Last Updated: Monday 4th 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.

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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.

Calculate Your Optimal Solar Panel Tilt Angle