Mathias Lobato, 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 -18.6048, -41.9619, this region benefits from consistent sunlight throughout most of the year, with seasonal variations primarily driven by wet and dry periods rather than dramatic temperature changes.
Solar Energy Output Performance
The solar energy production at this location shows strong performance across all seasons, though with notable seasonal variation. Summer delivers the highest output at 6.08 kWh per day per kW of installed solar capacity, making it the peak generation period. Spring follows as the second-best season with 5.25 kWh/day per kW, while autumn produces 5.51 kWh/day per kW. Winter shows the lowest output at 4.39 kWh/day per kW, though this still represents respectable production levels. The optimal summer and spring periods make these seasons ideal for maximizing solar energy harvest. Even during the lower-production winter months, the output remains substantial enough to provide reliable energy generation throughout the year.Optimal Panel Installation
For fixed panel installations at Mathias Lobato, Minas Gerais, the ideal tilt angle to maximize total year-round solar production is 17 degrees North. This angle has been calculated by analyzing daily solar elevation angles at this latitude, determining optimal panel tilt for each day, and weighting these angles according to daily photovoltaic potential using solar irradiance data. The calculation accounts for Earth's elliptical orbit to provide the most effective annual average positioning.Environmental and Weather Challenges
Several local factors could potentially impact solar production at this location and require careful consideration during installation:- Tropical rainfall and humidity: The wet season brings heavy rains and high humidity levels that can reduce panel efficiency and create maintenance challenges
- Dust and particulate accumulation: Dry periods can lead to significant dust buildup on panels, substantially reducing their energy output
- Vegetation growth: The tropical climate promotes rapid plant growth that could create shading issues if not properly managed
Preventative Measures for Maximum Production
To ensure optimal energy production despite these environmental challenges, several preventative measures should be implemented: Regular cleaning schedules become essential, particularly during dry seasons when dust accumulation peaks. Installing panels with adequate spacing allows for proper air circulation and easier maintenance access. Proper drainage systems around the installation site prevent water pooling during heavy rains. Vegetation management requires ongoing attention, with regular trimming of nearby trees and bushes to prevent shading. Consider the mature size of local flora when initially positioning panels to avoid future obstruction issues. Panel mounting systems should be designed to withstand tropical weather conditions, including heavy rainfall and potential strong winds. Using corrosion-resistant materials becomes particularly important in the humid tropical environment to ensure long-term system reliability and performance.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 Mathias Lobato
Seasonal solar PV output for Latitude: -18.6048, Longitude: -41.9619 (Mathias Lobato, 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 17° North in Mathias Lobato, Brazil
To maximize your solar PV system's energy output in Mathias Lobato, Brazil (Lat/Long -18.6048, -41.9619) throughout the year, you should tilt your panels at an angle of 17° 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 Mathias Lobato, 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 Mathias Lobato, Brazil. As mentioned earlier, for fixed-panel solar PV installations, it is optimal to maintain a 17° 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 | 24° North in Autumn | 34° 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 Mathias Lobato, 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 Mathias Lobato, 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 Mathias Lobato, Brazil
Topographical Features Around Mathias Lobato
The region surrounding Mathias Lobato in eastern Brazil presents a diverse topographical landscape characterized by rolling hills and moderate elevation changes typical of the Minas Gerais interior. This area sits within the Brazilian Highlands, where the terrain consists of undulating countryside with gentle slopes and occasional steeper inclines. The elevation in this region generally ranges from approximately 200 to 600 meters above sea level, creating a varied but manageable landscape for development projects.
The local topography features a mix of agricultural lands, pastures, and scattered woodland areas. Many of the hills have been cleared for cattle grazing and crop cultivation, resulting in open spaces with relatively gentle gradients. The soil composition includes weathered granite and gneiss formations, which provide stable foundations for construction while maintaining good drainage characteristics.
Small valleys and drainage channels weave through the landscape, directing seasonal water flow toward larger river systems. These natural water courses create pockets of slightly lower elevation that remain relatively flat and accessible. The overall terrain shows the influence of long-term erosion patterns that have smoothed many of the sharper geographical features, leaving behind rounded hilltops and gradual slope transitions.
Optimal Areas for Large-Scale Solar Development
The most suitable locations for extensive solar photovoltaic installations in this region would be the gently sloping hillsides with southern and southeastern exposures. These areas offer excellent solar access throughout the day while maintaining slopes gradual enough to minimize grading and foundation costs. The cleared agricultural lands on these slopes provide immediate access without requiring extensive vegetation removal.
The broader valley floors and plateau areas present another excellent opportunity for solar development. These relatively flat expanses offer the advantage of simplified installation procedures and reduced engineering challenges. Many of these areas are currently used for pasture land, making them potentially available for alternative uses while maintaining some agricultural compatibility through agrivoltaic approaches.
Areas with elevations between 300 and 500 meters above sea level appear particularly promising, as they benefit from clearer atmospheric conditions while remaining accessible for construction and maintenance activities. The stable geological foundation in these zones reduces concerns about ground settling or structural issues that might affect long-term solar array performance.
The proximity to existing agricultural infrastructure, including farm roads and electrical connections, makes many of these locations even more attractive for solar development. Transportation access for equipment delivery and ongoing maintenance operations would be facilitated by the existing network of rural roads that serve the farming communities in the region.
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
Author: Aaron Robinson
Publisher: profileSOLAR.com
First Published: Tuesday 1st of July 2025
Last Updated: Wednesday 6th of August 2025
Tell Us About Your Work
We love seeing how our research helps others! If you've cited this article in your work, we'd be delighted to hear about it. Drop us a line via our Contact Us page or on X, to share where you've used our information - we may feature a link to your work on our site. This helps create a network of valuable resources for others in the solar energy community and helps us understand how our research is contributing to the field. Plus, we occasionally highlight exceptional works that reference our research on our social media channels.
Feeling generous?
Share this with your friends!

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.




