Vila Rica, Mato Grosso, Brazil represents an excellent location for year-round solar energy generation. Located in the tropical region at coordinates -10.1341, -51.4137, this area 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 for Vila Rica demonstrates strong and reliable performance across all seasons. Winter emerges as the peak production period, generating 6.44 kWh per day per kW of installed solar capacity. Spring follows as the second-best season with 5.91 kWh/day, while autumn produces 5.63 kWh/day. Even summer, the lowest-producing season, still delivers a solid 5.27 kWh/day per kW installed. This seasonal pattern is typical for tropical locations, where winter months often provide clearer skies and optimal sun angles. The relatively small variation between seasons—only about 1.17 kWh difference between the highest and lowest producing seasons—indicates excellent year-round reliability for solar installations. For fixed panel installations at this location, the ideal tilt angle to maximize total annual production is 11 degrees facing North. This angle optimization takes into account the weighted daily solar elevation angles throughout the year and NASA solar irradiance data to ensure maximum energy capture.Environmental and Weather Challenges
Several environmental factors in Vila Rica could potentially impact solar energy production, though most can be effectively managed with proper installation practices. The tropical climate brings significant rainfall during wet seasons, which can reduce solar output during heavy precipitation periods. However, rain also provides a natural cleaning benefit for solar panels, washing away accumulated dust and debris that would otherwise reduce efficiency. Dust accumulation represents a more persistent challenge, particularly during dry seasons when rainfall is minimal. The combination of agricultural activities and unpaved roads in rural areas can generate significant dust that settles on panel surfaces, potentially reducing energy output by 10-20% if left unaddressed. High humidity levels, common in tropical regions, can accelerate corrosion of metal components and electrical connections if not properly protected. Additionally, the intense tropical sun can cause thermal stress on panels and mounting systems over time.Preventative Installation Measures
Several strategies can help maximize solar energy production in Vila Rica's tropical environment:- Install panels with adequate ventilation spacing to prevent overheating and allow air circulation
- Use corrosion-resistant materials for all mounting hardware and electrical connections
- Implement a regular cleaning schedule, particularly during dry seasons when natural rainfall is insufficient
- Choose high-quality panels with robust weatherproofing designed for tropical climates
- Install proper drainage systems to prevent water accumulation around mounting points
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 Vila Rica
Seasonal solar PV output for Latitude: -10.1341, Longitude: -51.4137 (Vila Rica, 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 11° North in Vila Rica, Brazil
To maximize your solar PV system's energy output in Vila Rica, Brazil (Lat/Long -10.1341, -51.4137) throughout the year, you should tilt your panels at an angle of 11° 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 Vila Rica, 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 Vila Rica, Brazil. As mentioned earlier, for fixed-panel solar PV installations, it is optimal to maintain a 11° North tilt angle throughout the year.
| Overall Best Summer Angle | Overall Best Autumn Angle | Overall Best Winter Angle | Overall Best Spring Angle |
|---|---|---|---|
| 6° South in Summer | 17° North in Autumn | 26° North in Winter | 4° 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 Vila Rica, 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 Vila Rica, 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 Vila Rica, Brazil
Topographical Features of Vila Rica
Vila Rica sits within the expansive Mato Grosso state in central Brazil, positioned on the southern edge of the Amazon Basin transitional zone. The terrain around this municipality is characterized by gently rolling hills and broad plateaus that form part of the Brazilian Central Plateau system. The landscape represents a transitional area between the flat Amazon lowlands to the north and the more elevated central Brazilian highlands. The region features relatively modest elevation changes, with the terrain gradually undulating across vast distances. Most of the surrounding area consists of savanna-like cerrado vegetation interspersed with gallery forests along waterways. The topography is generally stable and well-drained, with numerous small streams and seasonal watercourses creating shallow valleys that cut through the landscape.Geological Foundation and Terrain Stability
The underlying geology consists primarily of sedimentary rocks and ancient crystalline formations that provide excellent foundation stability. The soils are typically well-drained lateritic compositions common to the Brazilian cerrado, offering good structural support for infrastructure development. The terrain shows minimal signs of erosion or geological instability, making it suitable for large-scale construction projects. Natural drainage patterns follow gentle gradients toward regional river systems, with the landscape featuring broad interfluves between drainage basins. These elevated areas between valleys typically offer the most stable and accessible terrain for development purposes.Climate and Environmental Conditions
Vila Rica experiences a tropical savanna climate with distinct wet and dry seasons. The dry season typically extends from May through September, providing extended periods of clear skies and minimal precipitation. During these months, atmospheric conditions remain relatively stable with low humidity and minimal cloud cover. The wet season brings increased rainfall and humidity, though the well-drained terrain handles moisture effectively. Temperature variations remain relatively modest throughout the year, with the region experiencing warm conditions that support consistent solar radiation reception.Optimal Areas for Large-Scale Solar Development
The most suitable locations for extensive solar photovoltaic installations lie on the elevated plateau areas southwest and southeast of Vila Rica. These zones offer several advantages including gentle slopes that facilitate proper panel orientation, excellent drainage characteristics, and minimal vegetation density that reduces land clearing requirements. The broad interfluves between major drainage systems provide extensive flat to gently sloping terrain ideal for large solar arrays. These elevated areas typically feature consistent wind patterns that help maintain optimal panel temperatures while offering good accessibility for construction and maintenance activities. Areas along the higher elevations of the regional watershed divides present particularly attractive opportunities. These locations combine optimal terrain characteristics with proximity to existing transportation corridors, making them practical choices for utility-scale solar development.Infrastructure and Access Considerations
The terrain around Vila Rica generally supports road construction and utility infrastructure development with minimal engineering challenges. The stable geological foundation and well-drained soils reduce construction complications while the gentle topography minimizes the need for extensive grading or earthwork. Existing agricultural areas that have already been cleared and developed often present ready opportunities for solar installations, as the land has proven suitable for mechanized operations and infrastructure access. These previously developed areas typically feature established road networks and utility connections that can support large-scale renewable energy projects.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: 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.




