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Graph of hourly avg kWh electricity output per kW of Solar PV installed in Santa Rosa De Viterbo, Brazil (by season)

Solar Energy Potential in Santa Rosa de Viterbo, Brazil

Santa Rosa de Viterbo, Brazil offers promising conditions for solar energy generation throughout the year. Located in the tropics at latitude -21.4976 and longitude -47.3593, this location benefits from relatively consistent sunlight patterns that make it suitable for solar photovoltaic (PV) installations. The seasonal solar production shows a favorable pattern with moderate variation throughout the year. Summer months yield the highest energy output at 6.78 kWh per day for each kilowatt of installed capacity. Spring follows as the second most productive season with 6.21 kWh/day, while autumn provides 5.67 kWh/day. Even during winter, which is the least productive season, panels still generate a respectable 5.04 kWh/day per installed kilowatt.

Optimal Panel Installation

For fixed solar panel installations in Santa Rosa de Viterbo, the ideal tilt angle is 20 degrees facing North. This specific angle maximizes year-round energy production by optimizing the panel's exposure to the sun's path across the sky throughout the year. Unlike locations in the Northern Hemisphere, panels here should face north because the location is in the Southern Hemisphere.

Environmental and Weather Considerations

Several environmental factors could potentially impact solar production at this location:
  • Seasonal rainfall: The region experiences distinct wet and dry seasons typical of tropical climates. During the wet season, increased cloud cover may temporarily reduce solar output. Installing panels at the optimal angle helps shed water quickly after rain events.
  • Dust accumulation: During dry periods, dust can settle on panels and reduce efficiency. Regular cleaning maintenance or installing automated cleaning systems can mitigate this issue.
  • High temperatures: Excessive heat can slightly reduce solar panel efficiency. Ensuring adequate airflow beneath the panels with proper mounting systems can help dissipate heat.

Preventative Measures

To maximize solar production in Santa Rosa de Viterbo, several preventative measures are recommended: 1. Install panels with sufficient spacing and elevation to allow for airflow cooling. 2. Implement a regular cleaning schedule, especially before and after the dry season. 3. Consider weather-resistant panel technologies that perform well in tropical conditions. 4. Use inverters rated for high-temperature environments. Despite these considerations, the consistent year-round production figures indicate that Santa Rosa de Viterbo is a highly favorable location for solar PV installations, with even the lowest-producing winter months delivering substantial energy 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 Santa Rosa De Viterbo

Seasonal solar PV output for Latitude: -21.4976, Longitude: -47.3593 (Santa Rosa De Viterbo, 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 6.78kWh/day in Summer.
Autumn
Average 5.67kWh/day in Autumn.
Winter
Average 5.04kWh/day in Winter.
Spring
Average 6.21kWh/day in Spring.

 

Ideally tilt fixed solar panels 20° North in Santa Rosa De Viterbo, Brazil

To maximize your solar PV system's energy output in Santa Rosa De Viterbo, Brazil (Lat/Long -21.4976, -47.3593) throughout the year, you should tilt your panels at an angle of 20° 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: -21.4976, Longitude: -47.3593, the ideal angle to tilt panels is 20° North

Seasonally adjusted solar panel tilt angles for Santa Rosa De Viterbo, 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 Santa Rosa De Viterbo, Brazil. As mentioned earlier, for fixed-panel solar PV installations, it is optimal to maintain a 20° North tilt angle throughout the year.

Overall Best Summer Angle Overall Best Autumn Angle Overall Best Winter Angle Overall Best Spring Angle
6° North in Summer 27° North in Autumn 37° North in Winter 15° 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 Santa Rosa De Viterbo, Brazil as follows: In Summer, set the angle of your panels to 6° facing North. In Autumn, tilt panels to 27° facing North for maximum generation. During Winter, adjust your solar panels to a 37° angle towards the North for optimal energy production. Lastly, in Spring, position your panels at a 15° angle facing North to capture the most solar energy in Santa Rosa De Viterbo, 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 Santa Rosa De Viterbo, 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 Santa Rosa De Viterbo, 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 Santa Rosa De Viterbo, Brazil

The topography around Santa Rosa de Viterbo in São Paulo state, Brazil presents a diverse landscape characterized by gently rolling hills, shallow valleys, and plateaus typical of the interior region of southeastern Brazil. This municipality sits within the Paraná Basin physiographic province, with elevations generally ranging between 600 and 800 meters above sea level. The area features a combination of undulating terrain interspersed with relatively flat stretches, creating a mosaic of topographical features. The local relief is part of the broader São Paulo plateau region, which gradually slopes toward the Paraná River basin. Small streams and tributaries have carved modest valleys throughout the landscape, contributing to the gentle undulating character of the region.

Geological Context

Geologically, Santa Rosa de Viterbo sits upon the extensive basaltic formations of the Serra Geral, overlaid in many areas with sandstone and siltstone sediments. This geological foundation has weathered over millions of years to form the characteristic reddish-brown soils (latosols) that dominate the region. These soils, while fertile for agriculture, also provide stable foundations for infrastructure development. The terrain exhibits moderate to low relief energy, meaning the transitions between higher and lower elevations occur gradually rather than abruptly. This characteristic creates extended hillsides with gentle slopes rather than steep escarpments.

Vegetation and Land Use

Originally covered by transitional vegetation between Atlantic Forest and Cerrado (Brazilian savanna), much of the natural landscape has been transformed by agricultural activities. Today, the topography supports extensive sugarcane plantations, coffee farms, and pastureland, with fragments of native vegetation primarily preserved along watercourses and steeper terrain.

Optimal Areas for Solar PV Development

For large-scale solar photovoltaic installations, several nearby areas present favorable topographical conditions: The gently sloping plateaus to the north and northeast of Santa Rosa de Viterbo offer ideal conditions for solar farms. These areas feature minimal shadowing effects due to their open exposure and gradual inclines facing northward (optimal for the Southern Hemisphere). The stable geological foundation provides good load-bearing capacity for solar infrastructure. The slightly elevated terrain approximately 5-10 kilometers to the east of the urban center presents another promising location. This area combines favorable slope aspects (predominantly north-facing) with minimal flood risk and good drainage characteristics. The moderate elevation also potentially reduces fog exposure that might occur in lower-lying areas. Certain agricultural plateaus to the southwest, currently dominated by extensive farming operations, could be suitable for dual-use solar installations. These locations feature relatively flat terrain with minimal vegetation obstacles and established access routes. Areas to avoid include the more dissected terrain along river valleys, particularly toward the western portions of the municipality, where increased slope angles and potential erosion issues could complicate installation and maintenance of solar infrastructure. The southeastern quadrant, while topographically suitable in parts, contains more fragmented land parcels and somewhat more complex terrain features that might require additional site preparation. Overall, the predominantly gentle topography surrounding Santa Rosa de Viterbo provides numerous suitable locations for large-scale solar PV development, with the northern and eastern plateaus offering the most favorable combination of slope, aspect, and accessibility characteristics.

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 Santa Rosa De Viterbo, Brazil
Author: Aaron Robinson
Publisher: profileSOLAR.com
First Published: Sunday 29th of June 2025
Last Updated: Tuesday 22nd 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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