Governador Nunes Freire, Maranhão, Brazil represents an excellent location for year-round solar energy generation. Located in the tropics at coordinates -2.0099, -45.8428, this area benefits from consistent sunlight throughout most of the year, with seasons characterized more by wet and dry periods rather than dramatic temperature variations.

Solar Energy Production Potential

The solar energy output at this location shows strong performance across all seasons. During summer, solar panels can be expected to generate 5.06 kWh per day for each kW of installed capacity. Production increases through autumn at 5.23 kWh/day per kW, continues to improve in winter at 5.55 kWh/day per kW, and reaches its peak during spring at 5.79 kWh/day per kW. Spring emerges as the ideal time for solar generation at this location, followed closely by winter. This pattern is typical for locations in the Southern Hemisphere tropics, where the sun's angle becomes more favorable during these seasons. For maximum year-round energy production, fixed solar panels at this location should be tilted at just 2 degrees toward the north. This shallow angle reflects the location's proximity to the equator, where the sun remains relatively high in the sky throughout the year.

Environmental and Weather Challenges

Several factors could potentially impact solar energy production in this tropical Brazilian location:

• High humidity levels typical of tropical climates can reduce panel efficiency
• Frequent rainfall during wet seasons may temporarily reduce solar output and require regular panel cleaning
• Dense cloud cover during rainy periods can significantly decrease energy generation
• Salt air from coastal proximity may cause corrosion of equipment over time
• Extreme heat can reduce panel efficiency despite abundant sunlight

Preventative Measures for Optimal Performance

To maximize solar energy production despite these challenges, several installation strategies should be considered. Proper ventilation around panels helps combat efficiency losses from extreme heat by allowing air circulation to cool the equipment naturally. Regular maintenance schedules become crucial in this environment. Panels should be cleaned frequently to remove dust, debris, and residue from heavy rainfall. Using corrosion-resistant mounting hardware and electrical components designed for marine environments helps combat the effects of humid, salty air. Installing panels with adequate drainage prevents water accumulation, while choosing high-quality inverters with robust weatherproofing ensures reliable operation during intense tropical weather. Monitoring systems can help identify performance issues quickly, allowing for prompt maintenance when needed. Despite these environmental considerations, the consistently high solar output throughout all seasons makes Governador Nunes Freire an attractive location for solar energy investment, provided proper installation and maintenance practices are followed.

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 Governador Nunes Freire

Seasonal solar PV output for Latitude: -2.0099, Longitude: -45.8428 (Governador Nunes Freire, 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 2° North in Governador Nunes Freire, Brazil

To maximize your solar PV system's energy output in Governador Nunes Freire, Brazil (Lat/Long -2.0099, -45.8428) throughout the year, you should tilt your panels at an angle of 2° 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 Governador Nunes Freire, 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 Governador Nunes Freire, Brazil. As mentioned earlier, for fixed-panel solar PV installations, it is optimal to maintain a 2° North tilt angle throughout the year.

Overall Best Summer Angle	Overall Best Autumn Angle	Overall Best Winter Angle	Overall Best Spring Angle
14° South in Summer	9° North in Autumn	18° North in Winter	4° 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 Governador Nunes Freire, 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 Governador Nunes Freire, 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 Governador Nunes Freire, Brazil

Topographical Features of the Governador Nunes Freire Region

The area surrounding Governador Nunes Freire in Maranhão state sits within Brazil's expansive coastal lowlands, characterized by relatively flat terrain that gradually transitions from interior plains toward the Atlantic Ocean. This municipality lies in a region where the landscape is predominantly composed of gentle rolling hills and broad valleys, with elevations rarely exceeding 200 meters above sea level. The topography reflects the underlying geological formations typical of this part of northeastern Brazil, where sedimentary deposits have created a landscape of modest relief. The terrain becomes increasingly flat as one moves toward the coast, creating extensive areas of level ground interrupted only by occasional low ridges and shallow depressions. These coastal plains extend inland for considerable distances, forming part of the broader Maranhão lowlands that characterize much of the state's geography. The region's drainage patterns follow the gentle slopes, with numerous small streams and seasonal watercourses meandering through the landscape toward larger river systems. Vegetation in the area consists primarily of cerrado savanna and transitional forest formations, with patches of more dense woodland occurring in areas with better water retention. The relatively open nature of much of the landscape, combined with the gentle topography, creates conditions where large areas remain naturally clear or require minimal clearing for development purposes.

Optimal Areas for Large-Scale Solar Development

The extensive flat to gently rolling terrain throughout the Governador Nunes Freire region presents numerous opportunities for large-scale solar photovoltaic installations. The most suitable areas lie on the broader plateau surfaces and gentle slopes where the land remains relatively level across significant distances. These locations offer the dual advantages of minimal grading requirements and reduced infrastructure costs for solar panel installation. Areas positioned on slightly elevated terrain above the immediate floodplains of local watercourses would be particularly well-suited for solar development. These locations provide natural drainage while avoiding the potential complications associated with seasonal flooding or excessive moisture retention. The gentle slopes found throughout much of the region can actually benefit solar installations by providing optimal panel orientation opportunities. The coastal plains extending toward the Atlantic Ocean represent some of the most promising terrain for utility-scale solar projects. These areas combine extensive flat surfaces with good accessibility and proximity to potential transmission infrastructure. The open nature of much of this landscape reduces the environmental impact and cost associated with site preparation. Interior areas where the cerrado vegetation predominates also offer excellent potential for solar development. The naturally sparse tree cover in these regions minimizes clearing requirements, while the firm, well-drained soils provide stable foundations for solar mounting systems. The gentle undulating character of much of this terrain allows for flexible site design that can accommodate natural drainage patterns while maximizing solar exposure.

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.