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Flag of BrazilSolar PV Analysis of Senador Firmino, Brazil

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

Senador Firmino, Minas Gerais, Brazil, located at latitude -20.8968 and longitude -43.1103, presents a favorable environment for solar energy generation throughout the year. This tropical location benefits from consistent sunlight, with seasons characterized more by wet and dry periods than significant temperature variations.

Seasonal Solar Performance

The solar energy output at this location remains relatively stable across all seasons. Summer yields the highest production at 5.96 kWh per day for each kilowatt of installed solar capacity. Spring and autumn follow closely, with 5.47 kWh/day and 5.44 kWh/day respectively. Even during winter, the output remains substantial at 4.83 kWh/day. This consistent performance throughout the year makes Senador Firmino an ideal location for solar PV installations. The minimal fluctuation between seasons ensures a reliable energy supply, reducing the need for alternative power sources during less productive periods.

Optimal Panel Positioning

For fixed solar panel installations in Senador Firmino, Minas Gerais, the ideal tilt angle to maximize year-round energy production is 20 degrees facing North. This orientation allows the panels to capture the most sunlight throughout the year, accounting for the location's position in the Southern Hemisphere and the Earth's elliptical orbit.

Environmental Considerations

While Senador Firmino's tropical climate is generally conducive to solar energy production, there are a few factors to consider: 1. Rainfall: The region experiences a wet season, which could temporarily reduce solar output due to cloud cover. 2. Dust and pollen: These can accumulate on panels, potentially decreasing efficiency. To mitigate these issues, consider implementing the following measures:
  • Install panels at the recommended 20-degree tilt to facilitate natural cleaning by rainwater
  • Use self-cleaning panels or schedule regular cleaning, especially during drier periods
  • Employ weather-resistant equipment suitable for tropical climates
By addressing these factors, solar installations in Senador Firmino can maintain high efficiency and capitalize on the location's excellent solar potential throughout the year.

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 Senador Firmino

Seasonal solar PV output for Latitude: -20.8968, Longitude: -43.1103 (Senador Firmino, 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 5.96kWh/day in Summer.
Autumn
Average 5.44kWh/day in Autumn.
Winter
Average 4.83kWh/day in Winter.
Spring
Average 5.47kWh/day in Spring.

 

Ideally tilt fixed solar panels 20° North in Senador Firmino, Brazil

To maximize your solar PV system's energy output in Senador Firmino, Brazil (Lat/Long -20.8968, -43.1103) 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: -20.8968, Longitude: -43.1103, the ideal angle to tilt panels is 20° North

Seasonally adjusted solar panel tilt angles for Senador Firmino, 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 Senador Firmino, 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
5° North in Summer 26° North in Autumn 36° 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 Senador Firmino, Brazil as follows: In Summer, set the angle of your panels to 5° facing North. In Autumn, tilt panels to 26° facing North for maximum generation. During Winter, adjust your solar panels to a 36° 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 Senador Firmino, 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 Senador Firmino, 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 Senador Firmino, 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 Senador Firmino, Brazil

The topography around Senador Firmino, Brazil, is characterized by rolling hills and undulating terrain typical of the Atlantic Forest region. This small municipality is situated in the state of Minas Gerais, in southeastern Brazil, and is part of the larger Zona da Mata mesoregion. The landscape is a mix of low mountains, valleys, and gentle slopes, with elevations ranging from approximately 500 to 1,000 meters above sea level. The area surrounding Senador Firmino is predominantly rural, with a mosaic of agricultural lands, pastures, and remnants of the original Atlantic Forest. The terrain is dissected by numerous small streams and rivers, which have carved shallow valleys over time. This creates a varied topography with alternating ridges and depressions.

Potential for Solar PV Development

When considering areas nearby that would be most suited to large-scale solar PV installations, several factors come into play. The ideal locations would be relatively flat or gently sloping areas with good sun exposure throughout the day. Some of the cleared agricultural lands or degraded pastures in the vicinity of Senador Firmino could potentially be suitable for solar development. The northern and western outskirts of the municipality, where the terrain tends to be less rugged, might offer promising sites for solar farms. These areas generally have fewer obstructions that could cast shadows on solar panels, allowing for maximum sunlight capture. Additionally, locations on south-facing slopes (in the Southern Hemisphere) could be advantageous for solar PV installations, as they receive more direct sunlight throughout the year. However, it's important to note that any large-scale solar development would need to carefully consider environmental impacts, particularly given the ecological importance of the Atlantic Forest region. Detailed site assessments, including soil stability studies and environmental impact evaluations, would be necessary to identify the most appropriate locations for solar PV projects while minimizing ecological disruption. Furthermore, proximity to existing power infrastructure and accessibility for construction and maintenance should be taken into account when selecting potential sites. Areas close to main roads and with existing grid connections would likely be more feasible for large-scale solar development in the region around Senador Firmino.

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 Senador Firmino, Brazil
Author: Aaron Robinson
Publisher: profileSOLAR.com
First Published: Friday 18th of April 2025
Last Updated: Saturday 16th of August 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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