Mateus Leme, Minas Gerais, Brazil is located in an excellent position for year-round solar energy generation. This tropical location benefits from consistent sunlight throughout most of the year, with seasons typically defined by wet and dry periods rather than dramatic temperature variations.

Solar Energy Production Potential

The solar energy output at this location shows strong performance across all seasons. Summer delivers the highest production at 6.37 kWh per day for each kilowatt of installed solar capacity. Spring follows closely with 5.97 kWh/day, while autumn produces 5.77 kWh/day. Even during winter, the location maintains solid output at 5.16 kWh/day per kilowatt installed. For maximum year-round energy production, solar panels should be installed at a fixed tilt angle of 19 degrees facing north. This angle has been calculated to optimize total annual solar output by accounting for the sun's position throughout the year and Earth's orbital patterns.

Environmental and Weather Challenges

Being in a tropical climate with distinct wet and dry seasons, Mateus Leme faces several factors that could impact solar panel performance:

• Heavy rainfall during wet seasons can reduce sunlight reaching panels
• High humidity levels may cause moisture-related equipment issues
• Dust accumulation during dry periods can significantly reduce panel efficiency
• Tropical storms and strong winds pose potential structural risks
• High temperatures can reduce panel efficiency despite abundant sunlight

Preventative Installation Measures

Several strategies can help maximize solar energy production despite these challenges. Installing panels with adequate spacing and ventilation helps manage heat buildup and maintains better efficiency in high temperatures. Using corrosion-resistant mounting systems and electrical components specifically rated for tropical climates prevents moisture damage. Regular cleaning schedules become essential, particularly during dry seasons when dust accumulation peaks. Installing panels at the optimal 19-degree angle also helps with natural rain washing, reducing maintenance needs. Robust mounting systems designed to withstand tropical storm conditions ensure long-term system reliability. Choosing high-quality inverters with good heat tolerance and proper ventilation extends equipment life in this climate. Additionally, installing monitoring systems helps identify performance issues quickly, allowing for prompt maintenance that keeps energy production at optimal levels 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 Mateus Leme

Seasonal solar PV output for Latitude: -20.0165, Longitude: -44.4339 (Mateus Leme, 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 19° North in Mateus Leme, Brazil

To maximize your solar PV system's energy output in Mateus Leme, Brazil (Lat/Long -20.0165, -44.4339) throughout the year, you should tilt your panels at an angle of 19° 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 Mateus Leme, 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 Mateus Leme, Brazil. As mentioned earlier, for fixed-panel solar PV installations, it is optimal to maintain a 19° North tilt angle throughout the year.

Overall Best Summer Angle	Overall Best Autumn Angle	Overall Best Winter Angle	Overall Best Spring Angle
4° North in Summer	26° North in Autumn	35° North in Winter	14° 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 Mateus Leme, 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 Mateus Leme, 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.

Topography for solar PV around Mateus Leme, Brazil

Topographical Features of the Mateus Leme Region

The landscape around Mateus Leme in Minas Gerais presents a characteristic Brazilian highland topography, situated within the broader context of the Serra do Espinhaço mountain system. This region features rolling hills and moderate elevation changes typical of the Minas Gerais plateau, with the terrain generally sloping from higher elevations in the east toward lower areas in the west. The area sits at approximately 800 to 900 meters above sea level, creating a temperate highland climate despite its tropical latitude. The immediate vicinity displays a mosaic of gentle slopes interspersed with steeper hillsides and occasional flat-topped ridges known locally as chapadas. These elevated plateaus represent some of the most stable geological formations in the region, having been shaped over millions of years by weathering and erosion. The underlying geology consists primarily of crystalline rocks from the Precambrian era, including granite and gneiss formations that create relatively stable foundations. Drainage patterns in the area follow the natural topographical gradients, with several small streams and tributaries flowing westward toward the São Francisco River basin. These waterways have carved modest valleys through the landscape, creating a gently undulating terrain that alternates between ridgelines and shallow depressions. The vegetation transitions from patches of Atlantic Forest remnants in the more protected valleys to cerrado savanna on the exposed hilltops and slopes.

Optimal Areas for Large-Scale Solar Development

The most promising locations for extensive solar photovoltaic installations lie on the elevated plateau areas and gentle south-facing slopes that characterize much of the region. These chapada formations offer several advantages for solar development, including relatively flat terrain that minimizes grading requirements and reduces installation costs. The stable geological foundation of these areas also provides excellent support for mounting systems and reduces long-term maintenance concerns. Areas with gradual slopes of less than five degrees present ideal conditions for solar arrays, as they allow for optimal panel orientation while maintaining good drainage characteristics. The higher elevation zones, particularly those above 850 meters, benefit from clearer atmospheric conditions and reduced heat buildup compared to lower-lying areas. These elevated positions also tend to experience more consistent wind patterns that help maintain optimal operating temperatures for photovoltaic panels. The western-facing slopes of the region show particular promise for solar development due to their exposure patterns and the absence of significant topographical barriers that might create shading issues. These areas typically feature well-drained soils derived from weathered crystalline rocks, which provide stable foundations while allowing proper water management around solar installations. Agricultural areas with gentle topography represent another category of suitable land, particularly those currently used for extensive cattle grazing or crop production on flatter terrain. These locations often have existing access infrastructure and electrical grid connections that can facilitate solar project development. The transition zones between the higher chapadas and lower valley areas frequently offer the best combination of suitable topography, accessibility, and proximity to existing infrastructure.

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

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.