Buriti, Maranhão, Brazil presents an excellent location for year-round solar energy generation. Located in the tropical region at coordinates -3.9475, -42.8601, this area benefits from consistent sunlight throughout most of the year, with seasons typically defined by wet and dry periods rather than significant temperature variations.

Solar Energy Production Potential

The solar energy output data for Buriti demonstrates strong and consistent performance across all seasons. Spring emerges as the most productive season, generating 6.80 kWh per day per kW of installed solar capacity. Winter follows closely with 6.29 kWh/day, while autumn produces 5.95 kWh/day and summer generates 5.85 kWh/day. This seasonal pattern is particularly favorable for solar installations, as the variation between the best and worst performing seasons is relatively modest - only about 16% difference between spring and summer output. The consistently high production levels throughout the year make Buriti an ideal location for solar PV systems.

Optimal Panel Configuration

For maximum year-round energy production at this location, solar panels should be installed at a fixed tilt angle of 4 degrees facing North. This optimal angle is calculated by analyzing daily solar elevation angles at the latitude, determining daily optimal panel tilt, and weighting these angles by daily photovoltaic potential using solar irradiance data while accounting for Earth's elliptical orbit.

Environmental and Weather Considerations

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

• Heavy rainfall during wet seasons - Can reduce solar irradiance and create temporary shading
• High humidity levels - May cause condensation on panels and reduce efficiency
• Dust accumulation - Particularly during dry seasons when precipitation is minimal
• Tropical storms - Can damage equipment and create extended periods of cloud cover

Preventative Measures for Optimal Performance

To maximize energy production despite these challenges, several installation strategies should be implemented. Panels should be mounted with adequate drainage systems and slight tilting to prevent water pooling during heavy rains. Regular cleaning schedules become essential, particularly during dry seasons when dust accumulation is most problematic. Installing panels with anti-reflective coatings can help maintain efficiency during humid conditions, while robust mounting systems designed to withstand tropical weather conditions will ensure long-term reliability. Proper ventilation around panels helps reduce the impact of high humidity and heat on system performance. Additionally, incorporating monitoring systems allows for quick identification of performance issues, enabling prompt maintenance responses. Strategic placement of panels to avoid areas prone to flooding during wet seasons, combined with elevated mounting where necessary, helps protect the investment and maintain consistent energy production throughout the year.

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 Buriti

Seasonal solar PV output for Latitude: -3.9475, Longitude: -42.8601 (Buriti, 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 4° North in Buriti, Brazil

To maximize your solar PV system's energy output in Buriti, Brazil (Lat/Long -3.9475, -42.8601) throughout the year, you should tilt your panels at an angle of 4° 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 Buriti, 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 Buriti, Brazil. As mentioned earlier, for fixed-panel solar PV installations, it is optimal to maintain a 4° North tilt angle throughout the year.

Overall Best Summer Angle	Overall Best Autumn Angle	Overall Best Winter Angle	Overall Best Spring Angle
12° South in Summer	11° North in Autumn	19° North in Winter	2° South 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 Buriti, 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 Buriti, 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 Buriti, Brazil

Topographical Features of the Buriti Region

The area surrounding Buriti in Piauí state, Brazil, is characterized by relatively flat to gently rolling terrain typical of the Brazilian Northeast's interior plateau region. This landscape forms part of the broader Caatinga biome, where elevation changes are generally modest and the topography creates favorable conditions for large-scale development projects. The terrain around Buriti sits at a moderate elevation on the Brazilian plateau, with the land gradually sloping toward river valleys and seasonal watercourses. The region features expansive areas of relatively level ground interspersed with low hills and gentle undulations. These topographical characteristics result from geological processes that have created a stable, weathered landscape over millions of years. Local relief is typically minimal, with most elevation changes occurring gradually over considerable distances. The area lacks significant mountain ranges, deep valleys, or other dramatic topographical features that might complicate large-scale infrastructure development. Instead, the landscape consists primarily of broad, open spaces with gentle contours that follow the natural drainage patterns of the region.

Optimal Areas for Large-Scale Solar Development

The most suitable locations for extensive solar photovoltaic installations would be the expansive flat to gently sloping areas that dominate the landscape south and southeast of Buriti. These zones offer the ideal combination of minimal terrain variation and adequate space for large solar arrays without requiring extensive earthwork or grading operations. Areas with slight southern-facing slopes would be particularly advantageous, as they naturally optimize panel orientation for maximum solar exposure throughout the day. The gentle topography in these locations would minimize installation costs while providing excellent accessibility for construction equipment and ongoing maintenance operations. The relatively stable geological conditions underlying the region's flat terrain make it well-suited for the foundation requirements of large solar installations. The absence of steep slopes, rocky outcroppings, or unstable soil conditions reduces both construction complexity and long-term maintenance concerns. Areas near existing road networks would offer additional advantages for solar development, as the flat topography makes it economically feasible to extend access roads to potential installation sites. The open nature of the landscape also facilitates the electrical infrastructure needed to connect solar facilities to the regional power grid. The most promising zones for development would be those large, continuous flat areas that can accommodate substantial solar arrays without fragmentation by natural obstacles such as waterways or significant elevation changes. These characteristics make the Buriti region particularly attractive for utility-scale solar projects that require extensive, uninterrupted installation areas.

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.