Entre Rios de Minas, Brazil represents a highly favorable location for year-round solar photovoltaic energy generation. Located in the tropics at coordinates -20.703, -44.1103, this region benefits from consistent sunlight throughout most of the year, with seasonal variations characterized more by wet and dry periods rather than dramatic temperature changes.
Solar Energy Production Performance
The solar energy output data demonstrates excellent year-round performance at this location. Summer delivers the highest production at 6.37kWh per day per kW of installed solar capacity, making it the optimal season for solar generation. Spring follows as the second-best performing season with 5.97kWh/day per kW, while autumn produces 5.77kWh/day per kW. Even during winter, the lowest production period, the location still generates a respectable 5.16kWh/day per kW. This consistent performance across all seasons makes Entre Rios de Minas an ideal location for solar installations, with relatively modest seasonal variation compared to locations at higher latitudes. The difference between peak summer and lowest winter production is only about 23%, indicating reliable energy generation throughout the year.Optimal Installation Configuration
For maximum year-round solar production at Entre Rios de Minas, fixed solar panels should be tilted at an angle of 20 degrees facing north. This optimal angle is calculated by analyzing daily solar elevation angles at this latitude, determining daily optimal panel tilts, and weighting these angles by daily photovoltaic potential using solar irradiance data while accounting for Earth's elliptical orbit.Environmental and Weather Challenges
Several local factors could potentially impact solar production efficiency at this Brazilian location, though most can be effectively managed with proper installation techniques.Tropical Weather Patterns
The tropical climate brings distinct wet and dry seasons, with the wet season potentially creating challenges for solar production. Heavy rainfall and increased cloud cover during wet periods can temporarily reduce solar irradiance. However, the frequent rain also provides a natural cleaning mechanism for solar panels, helping to maintain their efficiency by washing away dust and debris.Dust and Atmospheric Particles
During dry seasons, dust accumulation on solar panels can become a significant issue, potentially reducing energy output by creating a barrier between sunlight and the photovoltaic cells. The agricultural nature of many areas in Minas Gerais can contribute to airborne particles that settle on panel surfaces.High Humidity and Temperature
Tropical conditions mean consistently high humidity levels and elevated temperatures, which can affect solar panel efficiency and longevity. High temperatures can reduce the electrical output of photovoltaic cells, while humidity may contribute to corrosion of metal components over time.Preventative Measures for Optimal Performance
Several installation strategies can help maximize solar energy production despite these environmental challenges:- Install panels with adequate ventilation spacing underneath to promote air circulation and reduce operating temperatures
- Use high-quality mounting systems with corrosion-resistant materials suitable for humid tropical conditions
- Implement regular cleaning schedules, particularly during dry seasons when dust accumulation is highest
- Choose solar panels with good high-temperature performance coefficients to minimize efficiency losses during hot periods
- Ensure proper drainage around installation areas to prevent water pooling during heavy rains
Maintenance Considerations
Establishing a proactive maintenance routine becomes particularly important in this tropical environment. During the dry season, more frequent cleaning may be necessary to remove dust buildup. Conversely, the wet season provides an opportunity to inspect systems for any weather-related damage and ensure all sealing remains intact. The combination of consistent solar irradiance and manageable environmental challenges makes Entre Rios de Minas an excellent location for solar energy projects, provided that installations are designed and maintained with the local tropical conditions in mind.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 Entre Rios De Minas
Seasonal solar PV output for Latitude: -20.703, Longitude: -44.1103 (Entre Rios De Minas, 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 20° North in Entre Rios De Minas, Brazil
To maximize your solar PV system's energy output in Entre Rios De Minas, Brazil (Lat/Long -20.703, -44.1103) 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.
Seasonally adjusted solar panel tilt angles for Entre Rios De Minas, 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 Entre Rios De Minas, 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 |
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 Entre Rios De Minas, 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 Entre Rios De Minas, Brazil.
Our calculation method
- Solar Position:
We determine the Sun's position on the Winter solstice using the location's latitude and solar declination. - Shadow Projection:
We calculate the shadow length cast by panels using trigonometry, considering panel tilt and the Sun's elevation angle. - 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 Entre Rios De Minas, Brazil
Topographical Features of Entre Rios de Minas
Entre Rios de Minas sits within the southeastern highlands of Minas Gerais state, positioned in a region characterized by rolling hills and moderate elevation changes typical of the Brazilian Highlands. The terrain around this municipality features a combination of gentle slopes, undulating valleys, and scattered higher ridges that form part of the broader Serra da Mantiqueira mountain system's foothills. The landscape displays the classic features of ancient crystalline rock formations that have been weathered over millions of years, creating a topography of rounded hills separated by shallow valleys. Elevation changes are generally gradual rather than steep, with most slopes ranging from gentle to moderate inclines. The area's geological foundation consists primarily of Precambrian rocks, including gneiss and granite formations that contribute to the region's stable, well-drained terrain. Water features play an important role in shaping the local topography, with several small rivers and streams carving shallow valleys through the landscape. These waterways create natural drainage patterns that flow generally eastward toward larger river systems. The presence of these water sources also influences the distribution of vegetation and agricultural activities across the region.Optimal Areas for Large-Scale Solar Development
The most suitable locations for extensive solar photovoltaic installations would be found on the broader hilltops and gentle south-facing slopes that characterize much of the surrounding countryside. These elevated areas typically offer several advantages including consistent exposure to sunlight throughout the day, natural drainage that prevents water accumulation, and relatively stable ground conditions for large-scale construction projects. The rolling plateau areas extending northwest and southwest of Entre Rios de Minas present particularly favorable conditions for solar development. These zones feature expansive areas of gently sloping terrain with minimal obstruction from trees or buildings, allowing for efficient panel placement and maintenance access. The moderate elevation changes in these areas also facilitate natural air circulation, which helps maintain optimal operating temperatures for photovoltaic equipment. Areas with southern exposure on the region's numerous hills would be especially well-suited for solar installations, as these locations receive optimal sun angles throughout most of the year. The stable geological conditions underlying these elevated areas provide solid foundations for mounting systems, while the natural drainage patterns help prevent issues with water accumulation that could affect equipment performance. Valley floors and areas near water sources would generally be less suitable for large-scale solar development due to potential flooding risks, higher humidity levels, and possible shading from surrounding hills during certain parts of the day. The most practical locations for significant solar installations would be those elevated areas where the terrain remains relatively flat or gently sloping across substantial distances, allowing for efficient use of space and standardized installation techniques.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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Article Details for Citation
Author: Aaron Robinson
Publisher: profileSOLAR.com
First Published: Monday 30th of June 2025
Last Updated: Tuesday 5th 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.
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.




