Carolina, Maranhão, Brazil presents an excellent location for year-round solar energy generation, with consistently strong solar output throughout all seasons. Located in the tropical region of Brazil, this area benefits from reliable sunlight patterns that make it highly suitable for solar photovoltaic installations.

Solar Energy Production Performance

The solar energy output at Carolina demonstrates remarkable consistency across all seasons. Winter emerges as the peak production period, generating 6.46 kWh per day for each kilowatt of installed solar capacity. This is followed by autumn at 5.74 kWh/day, spring at 5.64 kWh/day, and summer at 5.05 kWh/day. The winter months represent the ideal time for solar generation at this location, producing nearly 28% more energy than the lowest-performing summer period. This seasonal pattern is typical for locations in the southern hemisphere tropics, where winter brings clearer skies and optimal sun angles.

Optimal Panel Configuration

For maximum year-round energy production, solar panels should be installed at a fixed tilt angle of 9 degrees facing north. This relatively shallow angle is calculated to optimize total annual output by accounting for the sun's path throughout the year and weighting the angles based on actual solar potential at this specific latitude.

Environmental and Weather Challenges

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

• Tropical rainfall and humidity: The wet season can bring heavy rains and high humidity levels that may reduce solar panel efficiency and create more frequent cleaning requirements
• Dust and debris accumulation: Dry periods may lead to dust buildup on panel surfaces, reducing light transmission and energy output
• Vegetation growth: The tropical climate promotes rapid plant growth that could create shading issues if not properly managed

Preventative Installation Measures

To maximize energy production despite these challenges, several installation strategies should be considered. Panels should be mounted with adequate spacing and ventilation to promote air circulation and reduce moisture-related issues. Installing panels at the recommended 9-degree tilt will also help with natural rain-washing to keep surfaces cleaner. Regular maintenance schedules become particularly important in this tropical environment. Easy access pathways should be incorporated into the installation design to facilitate routine cleaning and inspection. Additionally, vegetation management around the solar array should be planned from the installation phase, with appropriate clearance distances maintained to prevent future shading problems. The consistently high solar output throughout the year makes Carolina an ideal location for solar energy generation, with proper installation and maintenance practices ensuring optimal performance despite the tropical environmental factors.

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 Carolina

Seasonal solar PV output for Latitude: -7.5079, Longitude: -47.1491 (Carolina, 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 9° North in Carolina, Brazil

To maximize your solar PV system's energy output in Carolina, Brazil (Lat/Long -7.5079, -47.1491) throughout the year, you should tilt your panels at an angle of 9° 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 Carolina, 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 Carolina, Brazil. As mentioned earlier, for fixed-panel solar PV installations, it is optimal to maintain a 9° North tilt angle throughout the year.

Overall Best Summer Angle	Overall Best Autumn Angle	Overall Best Winter Angle	Overall Best Spring Angle
8° South in Summer	14° North in Autumn	23° North in Winter	2° North 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 Carolina, 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 Carolina, 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 Carolina, Brazil

Topographical Features of Carolina, Brazil

Carolina sits in the northern portion of Maranhão state, positioned within the expansive Brazilian Cerrado savanna region. The landscape around Carolina is characterized by gently rolling hills and broad plateaus that rise gradually from the surrounding lowlands. This area forms part of the Central Brazilian Plateau system, where elevations typically range from 200 to 500 meters above sea level.

The terrain features extensive flat-topped mesas and gentle slopes covered primarily by tropical savanna vegetation. These elevated tablelands, known locally as chapadas, provide excellent drainage and are interspersed with shallow valleys that carry seasonal waterways toward the Tocantins River basin. The underlying geology consists mainly of sedimentary rock formations that have created relatively stable, well-drained soils across much of the region.

Vegetation in the area is dominated by the characteristic Cerrado landscape, featuring scattered trees and shrubs over grassland, with gallery forests following the watercourses. The open nature of this savanna environment means that large areas receive unobstructed exposure to sunlight throughout the day, with minimal shading from topographical features or dense forest cover.

Optimal Areas for Large-Scale Solar Development

The broad, flat-topped plateaus surrounding Carolina present ideal conditions for extensive solar photovoltaic installations. These elevated areas offer several key advantages including stable ground conditions, excellent natural drainage, and minimal slope variations that would complicate panel installation and maintenance. The chapada formations extend for many kilometers in all directions, providing ample space for utility-scale solar farms without significant terrain modifications.

Areas to the east and southeast of Carolina are particularly well-suited for solar development, where the plateau surfaces are most extensive and uniform. These locations benefit from relatively high elevations that provide good air circulation for cooling solar panels while maintaining easy access via existing rural roads. The sparse vegetation cover in these areas would require minimal clearing, reducing both environmental impact and development costs.

The gentle slopes leading down from the main plateau areas could also accommodate solar installations, particularly those with southern exposures that would maximize solar collection efficiency. These slightly inclined surfaces often provide natural drainage advantages while still maintaining the stable soil conditions necessary for large-scale infrastructure development.

Transportation access represents another significant advantage for solar development in this region, as Carolina is connected to major highways that link to both regional population centers and the national electrical grid infrastructure. The combination of favorable topography, abundant available land, and existing transportation networks makes the area around Carolina particularly attractive for renewable energy investment and development.

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.