Resplendor, Minas Gerais, Brazil offers excellent conditions for year-round solar energy generation, making it a highly suitable location for solar PV installations. Located in the tropics at coordinates -19.2027, -41.1434, this area benefits from consistent sunlight throughout most of the year, with seasons characterized more by wet and dry periods rather than dramatic temperature variations.
Seasonal Solar Performance
The solar energy output at Resplendor varies moderately across seasons, demonstrating the location's reliable solar potential. Summer provides the highest energy generation at 6.11 kWh per day per kW of installed solar capacity. Spring follows as the second-best season with 5.19 kWh/day per kW, while autumn produces 5.57 kWh/day per kW. Winter shows the lowest output at 4.44 kWh/day per kW, though this remains a respectable level for solar generation. The ideal times for solar generation at this location are summer and autumn, when the sun's position and intensity provide optimal conditions. However, even during the winter months, the solar output remains substantial enough to justify year-round solar installations. For maximum energy production from a fixed panel installation at Resplendor, Minas Gerais, solar panels should be tilted at 18 degrees toward the North. This angle has been calculated to optimize total year-round production by accounting for the sun's varying elevation angles throughout the year, weighted by daily solar potential and considering Earth's elliptical orbit.Environmental and Weather Factors
Several local factors could potentially impact solar production at Resplendor, Minas Gerais, though most can be effectively managed with proper installation techniques. The tropical climate brings significant rainfall during wet seasons, which can temporarily reduce solar output due to cloud cover. However, rain also provides a natural cleaning effect for solar panels, helping maintain their efficiency by washing away dust and debris. Humidity levels in tropical regions can be high, potentially leading to moisture-related issues with electrical components if not properly sealed. The combination of heat and humidity may also accelerate the degradation of certain panel materials over time. Dust accumulation during dry periods can reduce panel efficiency, particularly given Brazil's varied terrain and potential for airborne particles. Strong winds during storm seasons, while less common, could pose structural challenges for solar installations.Preventative Installation Measures
To maximize energy production despite these environmental factors, several installation strategies should be implemented:- Use high-quality, weatherproof electrical enclosures and connections rated for tropical conditions
- Install panels with adequate ventilation spacing to prevent overheating and moisture buildup
- Design mounting systems to withstand potential wind loads and seasonal weather variations
- Implement regular cleaning schedules during dry periods to maintain optimal panel efficiency
- Choose panels with anti-reflective coatings and robust frame materials suitable for humid conditions
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 Resplendor
Seasonal solar PV output for Latitude: -19.2027, Longitude: -41.1434 (Resplendor, 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 18° North in Resplendor, Brazil
To maximize your solar PV system's energy output in Resplendor, Brazil (Lat/Long -19.2027, -41.1434) throughout the year, you should tilt your panels at an angle of 18° 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 Resplendor, 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 Resplendor, Brazil. As mentioned earlier, for fixed-panel solar PV installations, it is optimal to maintain a 18° North tilt angle throughout the year.
| Overall Best Summer Angle | Overall Best Autumn Angle | Overall Best Winter Angle | Overall Best Spring Angle |
|---|---|---|---|
| 3° North in Summer | 25° North in Autumn | 35° North in Winter | 13° 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 Resplendor, 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 Resplendor, 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 Resplendor, Brazil
Topographical Features of Resplendor
Resplendor sits in the eastern portion of Minas Gerais state, Brazil, within the Doce River valley system. The landscape around this municipality is characterized by rolling hills and gentle valleys that are typical of the Brazilian Highlands region. The terrain features moderate elevation changes with most areas ranging between 200 to 600 meters above sea level, creating a undulating topography that transitions between river valleys and highland plateaus.
The Doce River forms a significant geographical feature in the region, flowing eastward toward the Atlantic Ocean. This river system has carved broad valleys through the landscape, creating relatively flat bottomlands interspersed with higher ridges and hills. The surrounding terrain includes a mix of agricultural lands, pastures, and remnant Atlantic Forest vegetation on steeper slopes and hilltops.
The climate in this region is classified as tropical semi-humid, with distinct wet and dry seasons. The topography influences local weather patterns, with valleys often experiencing slightly different conditions than the surrounding elevated areas. The landscape shows evidence of both natural erosion processes and human modification through agriculture and development over many decades.
Optimal Areas for Large-Scale Solar Development
The most suitable locations for extensive solar photovoltaic installations around Resplendor would be the elevated plateaus and gentle slopes that characterize much of the surrounding countryside. These areas offer several advantages including relatively stable ground conditions, good drainage, and minimal shading from surrounding terrain features.
The broad valley floors near the Doce River present excellent opportunities for large solar farms due to their flat topography and expansive open areas. These locations typically require minimal grading and earthwork, reducing installation costs while providing ample space for extensive panel arrays. The stable soil conditions in these valley areas also provide good foundations for mounting systems.
Hillsides with southern exposure would be particularly valuable for solar development, as they can capture optimal sun angles throughout the day. However, slopes should be moderate rather than steep to ensure practical installation and maintenance access. Areas with gradients between 0 and 15 degrees are generally most suitable for large-scale solar projects.
The region's existing agricultural lands, particularly those used for cattle grazing, could be excellent candidates for solar development or agrivoltaic systems. These areas often have established road access, electrical infrastructure nearby, and land use patterns that could accommodate solar installations with minimal environmental disruption.
Transportation access is another crucial factor, and areas near existing highways and rural roads would be preferable for large solar installations. The proximity to transmission lines and electrical infrastructure around Resplendor would also make certain locations more economically viable for utility-scale solar development.
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: Sunday 6th of July 2025
Last Updated: Wednesday 6th 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.




