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Flag of BrazilSolar PV Analysis of Vargem Grande Do Rio Pardo, Brazil

Graph of hourly avg kWh electricity output per kW of Solar PV installed in Vargem Grande Do Rio Pardo, Brazil (by season)

Solar Energy Potential in Vargem Grande do Rio Pardo, Brazil

Vargem Grande do Rio Pardo, Brazil offers promising conditions for solar power generation throughout the year. Located in the tropical region, this location benefits from consistent sunlight patterns that make it suitable for photovoltaic (PV) energy production. The seasonal electricity output shows relatively stable performance across the year. Spring delivers the highest production at 6.32kWh per day for each kilowatt of installed solar capacity. Summer follows closely with 6.14kWh/day, while autumn yields 5.92kWh/day. Winter shows the lowest production at 5.33kWh/day, but this figure remains substantial compared to many other global locations.

Seasonal Variations and Optimal Generation Periods

The modest variation between seasons indicates reliable year-round solar potential. The difference between the highest-producing season (spring) and lowest-producing season (winter) is less than 1kWh per day, representing approximately 15% variation. This consistency is advantageous for solar installations as it ensures dependable energy production throughout the year. Spring and summer clearly represent peak production periods, making these ideal times for maximum solar energy harvesting. However, the relatively small seasonal differences mean that solar remains viable even during autumn and winter months.

Optimal Panel Installation

For fixed panel installations at this location, the ideal angle to maximize total year-round production is 15 degrees facing North. This specific tilt optimizes the capture of solar radiation throughout the year, accounting for the site's tropical latitude and seasonal sun positions.

Environmental and Weather Considerations

Several environmental factors could potentially impact solar production at this location. The tropical climate brings a distinct wet season with increased cloud cover and rainfall, which may temporarily reduce solar efficiency. Dust accumulation during dry periods can also diminish panel performance if not addressed. Preventative measures to optimize solar production include:
  • Installing panels with sufficient spacing to allow for natural cleaning by rainfall
  • Implementing regular cleaning schedules, particularly during dry seasons
  • Using anti-soiling coatings on panels to reduce dust adhesion
  • Considering tracking systems to improve efficiency, though the consistent year-round production may make fixed installations more cost-effective
  • Ensuring proper drainage systems around ground-mounted installations to prevent flooding during heavy tropical rains
With appropriate installation techniques and maintenance practices, Vargem Grande do Rio Pardo presents favorable conditions for solar energy production throughout the year, with only minor seasonal variations affecting overall output.

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 Vargem Grande Do Rio Pardo

Seasonal solar PV output for Latitude: -15.3391, Longitude: -42.2994 (Vargem Grande Do Rio Pardo, 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 6.14kWh/day in Summer.
Autumn
Average 5.92kWh/day in Autumn.
Winter
Average 5.33kWh/day in Winter.
Spring
Average 6.32kWh/day in Spring.

 

Ideally tilt fixed solar panels 15° North in Vargem Grande Do Rio Pardo, Brazil

To maximize your solar PV system's energy output in Vargem Grande Do Rio Pardo, Brazil (Lat/Long -15.3391, -42.2994) throughout the year, you should tilt your panels at an angle of 15° 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: -15.3391, Longitude: -42.2994, the ideal angle to tilt panels is 15° North

Seasonally adjusted solar panel tilt angles for Vargem Grande Do Rio Pardo, 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 Vargem Grande Do Rio Pardo, Brazil. As mentioned earlier, for fixed-panel solar PV installations, it is optimal to maintain a 15° North tilt angle throughout the year.

Overall Best Summer Angle Overall Best Autumn Angle Overall Best Winter Angle Overall Best Spring Angle
0° in Summer 21° North in Autumn 31° North in Winter 10° 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 Vargem Grande Do Rio Pardo, Brazil as follows: In Summer, set the angle of your panels to 0° facing . In Autumn, tilt panels to 21° facing North for maximum generation. During Winter, adjust your solar panels to a 31° angle towards the North for optimal energy production. Lastly, in Spring, position your panels at a 10° angle facing North to capture the most solar energy in Vargem Grande Do Rio Pardo, 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 Vargem Grande Do Rio Pardo, 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 Vargem Grande Do Rio Pardo, 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 Vargem Grande Do Rio Pardo, Brazil

The topography surrounding Vargem Grande do Rio Pardo in the Brazilian state of Minas Gerais is characterized by a varied landscape of rolling hills, plateaus, and river valleys. This municipality sits within the broader geographic context of the Brazilian Highlands, a vast region of elevated terrain that dominates much of eastern Brazil. The area features moderate elevation changes, with terrain typically ranging between 700-900 meters above sea level. The landscape has been shaped by the weathering of ancient rock formations and the erosive action of the Rio Pardo river system, which has carved valleys throughout the region. The topography generally presents a pattern of undulating hills interspersed with flatter plateau areas, creating a mosaic of different landforms. Vegetation in the region reflects the transition between the Cerrado (tropical savanna) and Caatinga (semi-arid) biomes, with varying density depending on elevation, soil conditions, and proximity to water sources. The natural vegetation has been significantly modified in many areas due to agricultural activities, livestock grazing, and human settlement.

Optimal Areas for Solar PV Development

The most suitable areas for large-scale solar photovoltaic installations near Vargem Grande do Rio Pardo would be the relatively flat plateau regions that offer several advantages for solar development. These elevated, level areas typically experience minimal shadowing effects and provide excellent solar exposure throughout the day. The gently sloping hillsides with southern, eastern, or western aspects also present viable options, though they may require some terrain modification to optimize panel placement. Areas with northern exposure (in the Southern Hemisphere) would generally be less ideal due to reduced direct sunlight. The plateaus located several kilometers to the east and northeast of the town center present particularly favorable conditions, as they combine relatively flat terrain with good drainage characteristics and reduced vegetation density. These areas would minimize the need for extensive land clearing while providing stable ground for mounting structures. Areas to avoid would include the steeper slopes within river valleys, locations with dense tree cover that would require significant clearing, and low-lying areas that might be subject to seasonal flooding from the Rio Pardo and its tributaries. The riparian zones along waterways should also be preserved for ecological reasons and due to potential flooding risks. Soil stability is another important consideration, with the lateritic soils common to the region generally providing good foundation conditions for solar infrastructure, though site-specific geotechnical assessment would be necessary before development. Access to existing road infrastructure and proximity to electrical transmission infrastructure would further enhance the suitability of potential sites, with the areas along the main highways that connect to Vargem Grande do Rio Pardo offering logistical advantages for construction and maintenance of solar facilities.

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 Vargem Grande Do Rio Pardo, Brazil
Author: Aaron Robinson
Publisher: profileSOLAR.com
First Published: Sunday 29th of June 2025
Last Updated: Monday 21st of July 2025

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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.

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Calculate Your Optimal Solar Panel Tilt Angle