Bacabal, Maranhão, Brazil presents an excellent location for year-round solar energy generation. Located in the tropical region at coordinates -3.9856, -44.7418, this area benefits from consistent sunlight throughout the year, with seasons characterized more by wet and dry periods rather than significant temperature variations.

Solar Energy Output Performance

The solar energy production data shows remarkably consistent and strong performance across all seasons. Summer generates 5.32 kWh per day per kW of installed solar capacity, while autumn increases to 5.74 kWh/day. Winter performance reaches 5.83 kWh/day, and spring delivers the highest output at 6.01 kWh/day per kW installed. This seasonal pattern indicates that Bacabal experiences its peak solar generation during spring months, followed closely by winter. The relatively small variation between seasons (only 0.69 kWh/day difference between the lowest and highest performing seasons) demonstrates the location's reliability for consistent solar energy production throughout the year.

Optimal Panel Installation

For fixed panel installations at this location, the ideal tilt angle to maximize total year-round solar production is 5 degrees North. This shallow angle reflects Bacabal's proximity to the equator, where panels need only minimal tilting to capture optimal sunlight throughout the year.

Environmental and Weather Considerations

Several local factors could potentially impact solar energy production in Bacabal:

• Wet season impacts: The tropical climate brings distinct wet seasons with heavy rainfall and increased cloud cover, which can reduce solar irradiance during certain months
• High humidity levels: Consistent tropical humidity can lead to moisture-related issues with electrical components and may affect panel efficiency
• Dust and debris accumulation: Dry seasons can result in dust buildup on panels, while wet seasons may leave organic debris
• Intense UV exposure: The tropical location means equipment faces constant, intense ultraviolet radiation that can degrade materials over time

Preventative Measures for Optimal Performance

To maximize solar energy production and system longevity in Bacabal's tropical environment, several preventative measures should be implemented:

• Enhanced weatherproofing: Use marine-grade electrical connections and components rated for high-humidity tropical environments
• Regular cleaning schedules: Establish routine panel cleaning protocols to remove dust during dry seasons and organic matter after heavy rains
• Proper ventilation design: Install panels with adequate air circulation underneath to prevent overheating and moisture buildup
• UV-resistant materials: Select mounting systems, wiring, and components specifically rated for intense tropical UV exposure
• Drainage considerations: Ensure proper water drainage around installations to prevent flooding during heavy tropical rains

Despite these environmental considerations, Bacabal's consistent high solar output throughout the year makes it an ideal location for solar PV installations, provided proper planning and maintenance protocols 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 Bacabal

Seasonal solar PV output for Latitude: -3.9856, Longitude: -44.7418 (Bacabal, 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 Bacabal, Brazil

To maximize your solar PV system's energy output in Bacabal, Brazil (Lat/Long -3.9856, -44.7418) 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 Bacabal, 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 Bacabal, 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
12° South in Summer	11° North in Autumn	20° 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 Bacabal, 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 Bacabal, 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 Bacabal, Brazil

Topographical Features of Bacabal Region

Bacabal sits within the Maranhão state of northeastern Brazil, positioned in a transitional zone between the Amazon basin to the west and the Brazilian Highlands to the south. The surrounding landscape is characterized by relatively gentle topography, with elevations typically ranging from 50 to 150 meters above sea level. This creates a predominantly flat to gently rolling terrain that extends across much of the region.

The area forms part of the larger Tocantins-Araguaia river basin system, with numerous small streams and seasonal watercourses threading through the landscape. These waterways have carved shallow valleys and created subtle undulations in what is otherwise fairly level terrain. The soil composition consists primarily of lateritic soils typical of tropical regions, with areas of sandy and clay-rich deposits depending on local drainage patterns.

Vegetation in the immediate vicinity transitions from cerrado savanna characteristics to areas of secondary forest growth, reflecting the region's position between major Brazilian biomes. The landscape shows evidence of agricultural conversion, with cleared areas interspersed with remaining forest patches and regenerating vegetation.

Optimal Areas for Large-Scale Solar Development

The most suitable locations for extensive solar photovoltaic installations would be the elevated plateaus and gentle ridges that rise above the immediate floodplains of local waterways. These areas offer several advantages including better drainage, reduced flood risk, and more consistent ground conditions for foundation work. The higher elevations also tend to experience better air circulation, which can help with equipment cooling and maintenance access.

Areas to the southeast and southwest of Bacabal present particularly favorable conditions, where the terrain rises gradually toward the Brazilian Highlands. These locations combine relatively flat topography suitable for large arrays with sufficient elevation to avoid seasonal flooding concerns. The soil composition in these areas tends to be more stable, reducing foundation challenges for mounting systems.

Previously cleared agricultural lands would represent ideal candidates for solar development, as they already have established access routes and minimal vegetation clearing requirements. These areas often feature the gentle slopes that are optimal for solar panel orientation while maintaining good drainage characteristics. The existing infrastructure in former agricultural zones, including access roads and sometimes electrical connections, can significantly reduce development costs and environmental impact.

Locations with southern-facing slopes of 5-15 degrees would be particularly advantageous, as they naturally optimize panel positioning while maintaining manageable construction and maintenance conditions. Areas that avoid the immediate vicinity of wetlands and seasonal flood zones would ensure consistent operation and reduce environmental permitting complications.

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.