Seringueiras, Brazil presents an excellent location for year-round solar energy generation, with consistently high solar output throughout all seasons. Located in the tropical region of Rondônia state, this area benefits from the stable solar conditions typical of equatorial zones.
Solar Energy Production Performance
The solar energy output at Seringueiras remains remarkably consistent across all seasons, with daily electricity generation ranging from 5.01 to 5.56 kWh per kW of installed solar capacity. Spring emerges as the most productive season at 5.56 kWh/day, followed closely by winter at 5.40 kWh/day. Summer and autumn show slightly lower but still excellent production rates of 5.08 and 5.01 kWh/day respectively. This seasonal variation of only about 11% between the highest and lowest production periods demonstrates exceptional stability for solar energy planning. The higher production during winter and spring months helps offset any increased energy demands during these periods.Optimal Panel Installation
For fixed panel installations at this location, the ideal tilt angle is 12 degrees facing North to maximize total year-round solar production. This relatively shallow angle reflects the location's proximity to the equator, where the sun maintains a high position in the sky throughout the year.Environmental and Weather Challenges
Several factors could potentially impact solar energy production in Seringueiras:- Heavy rainfall and storms during wet season months can reduce solar irradiance and create temporary production drops
- High humidity levels typical of tropical climates may lead to increased soiling of panels and potential corrosion issues
- Dense vegetation growth in the surrounding rainforest environment could create shading issues if not properly managed
- Dust and organic debris from the forest canopy may accumulate on panel surfaces more rapidly than in drier climates
Preventative Measures for Optimal Performance
To maximize solar energy production despite these challenges, several installation strategies should be considered:- Elevated mounting systems that position panels well above ground level to minimize shading from vegetation and improve air circulation
- Regular cleaning schedules during dry periods to remove accumulated dust, pollen, and organic matter
- Corrosion-resistant materials and proper sealing to withstand high humidity and occasional flooding
- Strategic site clearing to maintain clear solar access while preserving necessary windbreaks
- Drainage systems around installations to prevent water pooling during heavy rains
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 Seringueiras
Seasonal solar PV output for Latitude: -11.9249, Longitude: -63.1894 (Seringueiras, 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 12° North in Seringueiras, Brazil
To maximize your solar PV system's energy output in Seringueiras, Brazil (Lat/Long -11.9249, -63.1894) throughout the year, you should tilt your panels at an angle of 12° 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 Seringueiras, 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 Seringueiras, Brazil. As mentioned earlier, for fixed-panel solar PV installations, it is optimal to maintain a 12° North tilt angle throughout the year.
| Overall Best Summer Angle | Overall Best Autumn Angle | Overall Best Winter Angle | Overall Best Spring Angle |
|---|---|---|---|
| 4° South in Summer | 18° North in Autumn | 28° North in Winter | 6° 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 Seringueiras, 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 Seringueiras, 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 Seringueiras, Brazil
Topography Around Seringueiras
Seringueiras sits in the western portion of Rondônia state in Brazil's Amazon region, positioned within a landscape characterized by gently rolling terrain and relatively low elevations. The area forms part of the broader Amazon Basin, where the topography consists primarily of undulating plains interspersed with low hills that rarely exceed 300 meters above sea level. The terrain gradually slopes toward the Guaporé River valley to the west, creating a natural drainage pattern that has shaped the local landscape over millennia.
The region displays typical characteristics of the Brazilian Shield's western edge, where ancient geological formations have been weathered into a relatively stable platform. Small streams and tributaries carve shallow valleys through the landscape, creating a network of waterways that flow generally westward toward the Guaporé River system. Between these watercourses, broad interfluves provide expanses of higher ground that remain well-drained throughout much of the year.
Dense tropical rainforest originally covered this entire region, though significant portions have been cleared for agriculture and cattle ranching since the 1970s. The remaining forest areas typically occupy the steeper slopes along stream valleys and areas with poorer drainage, while cleared lands tend to concentrate on the better-drained upland areas between watercourses.
Optimal Areas for Large-Scale Solar Development
The most suitable locations for large-scale solar photovoltaic installations would be found on the cleared upland areas that extend northeast and southeast of Seringueiras. These interfluves between the various tributary valleys offer several advantages for solar development, including relatively flat to gently sloping terrain that minimizes grading requirements and reduces installation costs. The elevation differences across these areas rarely exceed 50 meters, providing stable foundations for large arrays.
Areas that have already been converted to pasture or agriculture would be particularly attractive for solar development, as they avoid the environmental concerns and clearing costs associated with forested land. These cleared uplands typically feature good drainage characteristics, reducing concerns about seasonal flooding that might affect ground-mounted installations. The existing road network that serves the agricultural areas would also facilitate construction and maintenance access.
The region immediately east of Seringueiras toward the BR-429 highway corridor presents especially favorable conditions, where the terrain remains relatively flat and much of the land has been cleared for cattle ranching. This area benefits from proximity to existing electrical infrastructure and transportation networks while maintaining the topographical advantages necessary for efficient solar installations.
Areas closer to the Guaporé River valley to the west would be less suitable due to their lower elevation and greater susceptibility to seasonal flooding. Similarly, the remaining forested areas along stream valleys would present both environmental obstacles and practical challenges related to terrain complexity and access limitations.
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.




