Matinha, Maranhão, Brazil represents an excellent location for year-round solar energy generation. Located in the tropical region at coordinates -3.092, -44.9923, this area benefits from consistent sunlight throughout the year, with seasons characterized more by wet and dry periods rather than dramatic temperature variations.

Solar Energy Production Performance

The solar energy output at Matinha demonstrates impressive consistency across all seasons. During summer, solar panels can be expected to generate 5.32 kWh per day for each kW of installed capacity. Production increases through autumn (5.74 kWh/day per kW) and winter (5.83 kWh/day per kW), reaching its peak during spring at 6.01 kWh/day per kW. This seasonal pattern shows that spring offers the optimal conditions for solar energy generation, making it the ideal time of year for maximum production. However, the relatively small variation between seasons - with only about 13% difference between the lowest and highest production periods - indicates excellent year-round reliability for solar installations.

Optimal Panel Configuration

For fixed panel installations at this location, the ideal tilt angle to maximize total year-round production is 4 degrees North. This shallow angle reflects Matinha's proximity to the equator, where the sun passes nearly overhead throughout the year.

Environmental and Weather Considerations

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

• Heavy rainfall during wet seasons: Extended periods of cloud cover and precipitation can significantly reduce solar irradiance
• High humidity levels: Tropical humidity can lead to moisture buildup and potential corrosion of electrical components
• Dust and debris accumulation: The combination of dry periods followed by heavy rains can create cycles of dust buildup and washing
• Intense UV exposure: Strong tropical sunlight can accelerate degradation of panel materials and mounting systems

Preventative Measures for Optimal Performance

To ensure maximum energy production despite these challenges, several installation strategies should be implemented. Regular cleaning schedules become essential, particularly after dust storms or before the wet season begins. Installing panels with adequate spacing allows for proper air circulation, reducing moisture buildup and helping components stay cooler. Choosing corrosion-resistant mounting materials, such as marine-grade aluminum or stainless steel, helps combat the effects of high humidity. Additionally, selecting panels and inverters specifically rated for tropical climates ensures better long-term performance under intense UV exposure and temperature fluctuations. Proper drainage around installations prevents water accumulation during heavy rains, while strategic positioning can take advantage of natural wind patterns to keep panels clean and cool. These measures, combined with Matinha's excellent solar resource, make it a highly suitable location for reliable solar energy generation 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 Matinha

Seasonal solar PV output for Latitude: -3.092, Longitude: -44.9923 (Matinha, 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 Matinha, Brazil

To maximize your solar PV system's energy output in Matinha, Brazil (Lat/Long -3.092, -44.9923) 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 Matinha, 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 Matinha, 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
13° South in Summer	10° North in Autumn	19° North in Winter	3° 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 Matinha, 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 Matinha, 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 Matinha, Brazil

Topographical Characteristics of Matinha, Brazil

Matinha is situated in the northeastern region of Brazil, within the state of Maranhão. The topography surrounding this location is characterized by relatively flat to gently undulating terrain, which is typical of the Maranhão lowlands. The area sits at a modest elevation, forming part of the broader coastal plain that extends inland from the Atlantic Ocean.

The landscape around Matinha features predominantly low-lying terrain with gradual elevation changes rather than steep hills or mountainous formations. This gentle topography is interspersed with seasonal wetlands and floodplains, particularly during the rainy season when water levels rise across the region. The terrain consists mainly of sedimentary deposits that have created expansive flat areas broken by occasional low ridges and shallow depressions.

The region experiences a transition between different ecological zones, with areas of cerrado savanna vegetation mixed with patches of tropical forest. The topographical variation is generally minimal, with most elevation changes occurring gradually over large distances rather than through dramatic shifts in terrain height.

Optimal Areas for Large-Scale Solar Development

The flat to gently rolling topography around Matinha presents several advantages for large-scale solar photovoltaic installations. The most suitable areas would be those elevated sections of the landscape that remain above seasonal flood levels while maintaining relatively level ground for efficient panel installation and maintenance access.

Areas situated on the slightly higher ground within the regional topography would be particularly well-suited for solar development. These locations offer natural drainage advantages and reduced risk of flooding during wet seasons, while still maintaining the flat characteristics necessary for cost-effective solar array construction. The gentle slopes found in these areas, typically ranging from nearly flat to very modest inclines, would allow for optimal panel orientation without requiring extensive site preparation or grading.

The most promising zones for solar installations would be those sections of higher ground that extend in continuous patches large enough to accommodate utility-scale projects. These areas would benefit from consistent elevation levels that minimize the need for complex mounting systems while ensuring adequate drainage. The relatively stable geological conditions of the sedimentary terrain also provide suitable foundations for solar infrastructure.

Areas closer to existing transportation infrastructure would offer additional advantages for large-scale solar development, as the flat topography facilitates easier construction access and maintenance operations. The combination of appropriate elevation, minimal slope variation, and accessibility makes certain portions of the regional landscape particularly attractive for substantial solar energy projects.

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.