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Graph of hourly avg kWh electricity output per kW of Solar PV installed in Ladainha, Brazil (by season)

Ladainha, Minas Gerais, Brazil is located in a tropical region where solar energy generation shows strong potential throughout most of the year. This location benefits from the consistent sunlight typical of tropical areas, though there are notable seasonal variations in energy output.

Solar Energy Production Potential

The solar energy output at Ladainha varies significantly across the seasons. Summer delivers the highest production at 5.92 kWh per day for each kilowatt of installed solar capacity. Spring and autumn show nearly identical performance at 5.41 kWh and 5.43 kWh respectively, making these seasons quite reliable for solar generation. Winter presents the lowest output at 4.39 kWh per day per kilowatt installed. This represents about a 26% decrease compared to peak summer production, which is still relatively modest compared to many locations outside the tropics.

Optimal Installation Configuration

For maximum year-round solar production at Ladainha, Minas Gerais, solar panels should be installed at a fixed tilt angle of 17 degrees facing north. This angle has been calculated to optimize total annual energy output by accounting for the sun's path throughout the year and the location's specific latitude.

Environmental and Weather Factors

Several local factors could potentially impact solar energy production at this tropical location:
  • Heavy rainfall during wet seasons can reduce solar irradiance and create periods of lower energy generation
  • High humidity levels typical of tropical climates may lead to more frequent condensation on panel surfaces
  • Dust and organic debris accumulation during dry periods can reduce panel efficiency
  • Tropical vegetation growth may create shading issues if not properly managed

Preventative Measures for Optimal Performance

To maximize solar energy production despite these challenges, several installation strategies should be considered:
  • Install panels with adequate drainage systems to prevent water pooling during heavy rains
  • Ensure proper ventilation behind panels to reduce heat buildup and improve efficiency
  • Plan for regular cleaning schedules, particularly during dry seasons when dust accumulation is highest
  • Maintain clear sight lines by trimming vegetation regularly around the installation area
  • Use anti-reflective coatings and self-cleaning panel surfaces where possible
Overall, Ladainha presents a favorable location for year-round solar energy generation, with the main considerations being proper installation techniques to handle tropical weather conditions and regular maintenance to ensure optimal performance throughout the varying wet and dry seasons.

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 Ladainha

Seasonal solar PV output for Latitude: -17.6437, Longitude: -41.8326 (Ladainha, 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:

Summer
Average 5.92kWh/day in Summer.
Autumn
Average 5.43kWh/day in Autumn.
Winter
Average 4.39kWh/day in Winter.
Spring
Average 5.41kWh/day in Spring.

 

Ideally tilt fixed solar panels 17° North in Ladainha, Brazil

To maximize your solar PV system's energy output in Ladainha, Brazil (Lat/Long -17.6437, -41.8326) throughout the year, you should tilt your panels at an angle of 17° 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.

The sun
At Latitude: -17.6437, Longitude: -41.8326, the ideal angle to tilt panels is 17° North

Seasonally adjusted solar panel tilt angles for Ladainha, 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 Ladainha, Brazil. As mentioned earlier, for fixed-panel solar PV installations, it is optimal to maintain a 17° North tilt angle throughout the year.

Overall Best Summer Angle Overall Best Autumn Angle Overall Best Winter Angle Overall Best Spring Angle
2° North in Summer 23° North in Autumn 33° North in Winter 12° North in Spring

Assuming you can modify the tilt angle of your solar PV panels throughout the year, you can optimize your solar generation in Ladainha, Brazil as follows: In Summer, set the angle of your panels to 2° facing North. In Autumn, tilt panels to 23° facing North for maximum generation. During Winter, adjust your solar panels to a 33° angle towards the North for optimal energy production. Lastly, in Spring, position your panels at a 12° angle facing North to capture the most solar energy in Ladainha, Brazil.

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 Ladainha, 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 Ladainha, 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.






Please enter information above to calculate panel spacing.

Topography for solar PV around Ladainha, Brazil

Topographical Features of Ladainha Region

Ladainha is situated in the eastern portion of Minas Gerais state, nestled within the Brazilian Highlands. The terrain around this municipality is characterized by rolling hills and moderate elevation changes typical of the Atlantic Plateau region. The landscape consists of undulating topography with elevations generally ranging between 600 and 900 meters above sea level, creating a series of gentle ridges and valleys that extend across the region.

The area exhibits the classic features of the Mata Atlântica transition zone, where the original Atlantic Forest once dominated. Today, much of the natural vegetation has been replaced by agricultural activities, particularly cattle ranching and coffee cultivation on the hillsides. The terrain is dissected by numerous small streams and tributaries that flow toward larger river systems, creating a network of shallow valleys between the rounded hilltops.

Rocky outcrops and exposed granite formations occasionally punctuate the landscape, remnants of the ancient geological processes that shaped this part of the Brazilian Shield. These formations create local variations in the otherwise relatively uniform topography. The soil composition varies from clay-rich areas in the valleys to more sandy compositions on the elevated areas, reflecting the weathering patterns of the underlying crystalline rocks.

Optimal Areas for Large-Scale Solar Development

The most suitable locations for large-scale solar photovoltaic installations around Ladainha would be the plateau areas and gentle south-facing slopes that offer relatively flat terrain with minimal shading from surrounding topographical features. These elevated areas provide excellent exposure to solar radiation throughout the day while avoiding the complications associated with steep terrain or valley locations where morning and evening shadows could reduce energy generation.

The agricultural lands that currently support cattle grazing represent particularly attractive opportunities for solar development. These areas have already been cleared of native vegetation and typically feature gentle slopes that would require minimal grading for solar panel installation. The existing ranch roads and cleared access routes would facilitate construction and maintenance activities without requiring extensive new infrastructure development.

Areas to the north and west of the town center offer some of the most promising topographical conditions, where the terrain opens up into broader, less dissected plateau surfaces. These locations combine favorable slope angles with reduced interference from local topographical features that might create shading issues. The relatively stable soil conditions in these areas would also provide good foundations for solar mounting systems.

Valley floors and areas near watercourses should generally be avoided for large installations due to potential flooding concerns, higher humidity levels, and the increased likelihood of morning fog formation. Similarly, the steeper hillsides and areas with significant rocky outcrops would present engineering challenges and increased installation costs that might make projects less economically viable.

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!

Citation Guide

Article Details for Citation

Article: Solar PV Analysis of Ladainha, Brazil
Author: Aaron Robinson
Publisher: profileSOLAR.com
First Published: Monday 21st of July 2025
Last Updated: Thursday 7th of August 2025

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Compare this location to others worldwide for solar PV potential

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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.

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