Pedreiras, Maranhão, Brazil, situated at latitude -4.5866 and longitude -44.5995, offers an excellent location for solar PV energy generation throughout the year. Located in the tropical region of Brazil, this site benefits from consistent sunlight patterns with relatively small seasonal variations in solar energy production.

The solar electricity output at this location shows impressive generation capacity across all seasons. Winter actually provides the highest daily production at 6.13kWh per kW of installed capacity, closely followed by spring with 6.02kWh/day. Autumn yields 5.78kWh/day, while summer produces a still substantial 5.39kWh/day per kW of installed capacity.

Optimal Panel Positioning

For fixed solar panel installations in Pedreiras, Maranhão, the ideal tilt angle to maximize year-round energy production is 5 degrees facing North. This shallow angle reflects the location's proximity to the equator, where the sun passes nearly overhead throughout much of the year.

Seasonal Considerations

Unlike temperate regions with dramatic seasonal variations, Pedreiras experiences relatively consistent solar production throughout the year. Interestingly, the winter season actually provides the highest solar output, making this an exceptionally reliable location for consistent solar energy generation across all seasons.

Environmental Factors and Mitigation

Several environmental factors could potentially impact solar production in Pedreiras:

• High rainfall during the wet season may reduce solar efficiency due to cloud cover and direct precipitation on panels. Installing panels with good drainage systems and water-resistant components is advisable.
• Dust accumulation during the dry season can diminish panel efficiency. Regular cleaning schedules and possibly automated cleaning systems would help maintain optimal performance.

High humidity levels in this tropical location may accelerate component degradation over time. Using humidity-resistant components and proper sealing of electrical connections can extend system lifespan. Additionally, implementing lightning protection systems is important given the frequency of thunderstorms in tropical regions.

Despite these considerations, the consistently high solar output across all seasons makes Pedreiras an ideal location for solar PV installations, with year-round production levels that would be envied in many other parts of the world.

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 Pedreiras

Seasonal solar PV output for Latitude: -4.5866, Longitude: -44.5995 (Pedreiras, 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 5° North in Pedreiras, Brazil

To maximize your solar PV system's energy output in Pedreiras, Brazil (Lat/Long -4.5866, -44.5995) throughout the year, you should tilt your panels at an angle of 5° 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 Pedreiras, 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 Pedreiras, Brazil. As mentioned earlier, for fixed-panel solar PV installations, it is optimal to maintain a 5° North tilt angle throughout the year.

Overall Best Summer Angle	Overall Best Autumn Angle	Overall Best Winter Angle	Overall Best Spring Angle
11° South in Summer	11° North in Autumn	20° North in Winter	1° 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 Pedreiras, 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 Pedreiras, 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 Pedreiras, Brazil

The topography around Pedreiras, Brazil presents a diverse landscape characterized by gently rolling hills, modest elevations, and river valleys. Located in the state of Maranhão in northeastern Brazil, Pedreiras sits within the transition zone between the Amazon Basin and the drier regions of northeastern Brazil. The elevation in the area generally ranges from approximately 50 to 200 meters above sea level, creating a moderately undulating terrain rather than dramatic mountainous features. The Mearim River is a defining geographical feature of the region, flowing near Pedreiras and carving a broad valley through the landscape. This river system has shaped much of the local topography, creating alluvial plains in some areas and more dissected terrain in others. The river valleys tend to have fertile soils due to periodic flooding and sediment deposition, while the higher ground consists of more weathered soils typical of tropical regions.

Vegetation and Land Cover

The natural vegetation around Pedreiras reflects its position in a transitional ecological zone. The region historically featured a mix of tropical forest and cerrado (savanna-like) vegetation, though much of this has been modified by human activity. Today, the landscape includes patches of secondary forest, agricultural land, pastures, and areas of more open vegetation. This mosaic of land cover types contributes to the varied topographical character of the region.

Climate Influence on Topography

The climate has played a significant role in shaping the topography around Pedreiras. The region experiences a tropical climate with distinct wet and dry seasons. Rainfall is moderate to high, particularly during the wet season (typically December to May), which contributes to erosion processes that have helped form the current landscape. The combination of warm temperatures and seasonal precipitation has led to deep weathering of soils and relatively smooth landforms compared to more tectonically active regions.

Optimal Areas for Solar PV Development

For large-scale solar photovoltaic development, the most suitable areas near Pedreiras would be the higher elevation plateaus and gently sloping hillsides that can be found to the east and southeast of the town. These areas offer several advantages for solar installation: The elevated terrain typically experiences less flooding risk compared to the river valleys, providing more stable ground conditions for infrastructure development. Many of these higher areas have already been cleared for agriculture or grazing, meaning less vegetation clearance would be required for solar farm establishment. The gentle slopes facing north, northeast, and northwest would be particularly advantageous for solar panel placement, as they receive consistent sunlight exposure throughout the day. Areas with slopes between 1-5% offer a good balance between drainage and construction feasibility for large arrays of solar panels. The plateaus approximately 15-20 kilometers east of Pedreiras present perhaps the most promising locations, as they combine favorable topography with proximity to existing roads and power infrastructure. These areas feature relatively flat terrain at elevations of 100-150 meters, providing good drainage while minimizing the engineering challenges that would come with more rugged terrain. Areas to avoid would include the immediate floodplains of the Mearim River and its tributaries, as well as any remaining densely forested patches that would require significant clearing. Additionally, the more steeply dissected terrain found in some parts of the region would present construction challenges that could substantially increase development costs for large-scale solar installations.

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.