Palmas de Monte Alto, Brazil represents an excellent location for year-round solar energy generation. Located in the tropics at coordinates -13.9629, -43.2459, this area benefits from consistent sunlight throughout the year, with seasonal variations characterized more by wet and dry periods rather than dramatic temperature changes.
Solar Energy Output Performance
The solar energy production data for this location shows remarkably consistent performance across all seasons. Winter produces the lowest output at 6.16 kWh per day per kW of installed solar capacity, while spring delivers the highest at 6.85 kWh per day per kW. Summer and autumn fall in between at 6.47 kWh and 6.41 kWh respectively. This relatively small variation between seasons - only about 11% difference between the best and worst performing seasons - makes Palmas de Monte Alto highly suitable for solar installations. The spring months emerge as the optimal time for solar generation, likely due to favorable atmospheric conditions and sun positioning.Optimal Panel Configuration
For maximum year-round energy production at this location, solar panels should be installed at a fixed tilt angle of 14 degrees facing north. This angle has been calculated to optimize total annual solar output by accounting for the sun's path throughout the year, Earth's elliptical orbit, and daily solar irradiance patterns specific to this latitude.Environmental and Weather Challenges
Several local factors could potentially impact solar energy production in this tropical Brazilian location:- Seasonal rainfall patterns: The wet season can bring heavy rains and increased cloud cover, reducing solar irradiance
- High humidity levels: Tropical humidity can lead to moisture buildup on panels and potential corrosion issues
- Dust and debris accumulation: Dry periods may result in dust settling on panels, reducing efficiency
- Intense UV exposure: Strong tropical sunlight can accelerate degradation of panel materials over time
Preventative Measures for Optimal Performance
To maximize solar energy production despite these challenges, several installation strategies should be considered: Regular cleaning schedules become essential, particularly during dry periods when dust accumulation is highest. Installing panels with adequate spacing allows for proper air circulation, helping to reduce moisture buildup and improve cooling efficiency. Choosing high-quality panels with robust anti-reflective coatings and UV-resistant materials will help withstand the intense tropical sun exposure. Additionally, ensuring proper drainage around panel installations prevents water pooling during heavy rains. Implementing monitoring systems can help identify performance drops quickly, allowing for prompt maintenance. Given the consistent year-round production potential, investing in these preventative measures will help ensure the solar installation operates at peak efficiency throughout its lifespan.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 Palmas De Monte Alto
Seasonal solar PV output for Latitude: -13.9629, Longitude: -43.2459 (Palmas De Monte Alto, 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 14° North in Palmas De Monte Alto, Brazil
To maximize your solar PV system's energy output in Palmas De Monte Alto, Brazil (Lat/Long -13.9629, -43.2459) throughout the year, you should tilt your panels at an angle of 14° 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 Palmas De Monte Alto, 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 Palmas De Monte Alto, Brazil. As mentioned earlier, for fixed-panel solar PV installations, it is optimal to maintain a 14° North tilt angle throughout the year.
| Overall Best Summer Angle | Overall Best Autumn Angle | Overall Best Winter Angle | Overall Best Spring Angle |
|---|---|---|---|
| 2° South in Summer | 20° North in Autumn | 29° North in Winter | 8° 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 Palmas De Monte Alto, 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 Palmas De Monte Alto, 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 Palmas De Monte Alto, Brazil
Topographical Features of Palmas de Monte Alto Region
The area surrounding Palmas de Monte Alto in Bahia, Brazil is characterized by gently rolling hills and elevated plateaus that form part of the broader Chapada Diamantina region. This landscape sits at a moderate elevation, creating a terrain that transitions between the higher mountain ranges to the east and the lower-lying areas toward the São Francisco River valley to the west. The topography consists primarily of undulating terrain with gradual slopes and broad, open areas that extend across the countryside. These elevated plains are interspersed with shallow valleys and occasional rocky outcroppings typical of the Brazilian highlands. The region features relatively stable geological formations with well-drained soils that have developed over ancient crystalline bedrock.Climate and Environmental Conditions
This semi-arid region experiences a tropical savanna climate with distinct wet and dry seasons. The elevated position contributes to relatively consistent weather patterns throughout the year, with clear skies being particularly common during the extended dry season. The combination of altitude and latitude creates favorable atmospheric conditions with minimal cloud cover for much of the year. The vegetation consists mainly of caatinga scrubland and cerrado grasslands, with sparse tree coverage that does not create significant shading issues. Wind patterns in the area are generally stable, with consistent breezes flowing across the open landscape due to the elevated topographical position.Optimal Areas for Large-Scale Solar Development
The most suitable locations for extensive solar photovoltaic installations would be the broad, gently sloping plateaus that extend north and northwest of Palmas de Monte Alto. These areas offer several key advantages including relatively flat terrain that minimizes grading requirements and construction costs while maximizing panel efficiency through optimal positioning. The elevated plains to the southwest also present excellent opportunities for solar development. These locations feature stable ground conditions with minimal risk of flooding or erosion, essential factors for long-term infrastructure investments. The sparse vegetation and minimal tree coverage in these areas reduce land clearing requirements and eliminate concerns about future shading from growing vegetation. Areas with southern-facing slopes of less than five degrees would be particularly well-suited for solar installations, as they provide natural optimal positioning for panel arrays while maintaining accessibility for construction and maintenance equipment. The consistent elevation changes across these zones are gradual enough to allow for large, continuous installations rather than requiring segmented smaller projects. The region's distance from major population centers, while presenting some transmission challenges, also offers advantages in terms of land availability and cost. Large tracts of suitable terrain remain undeveloped, providing opportunities for utility-scale projects that can take advantage of economies of scale in both construction and operation.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: Friday 25th of July 2025
Last Updated: Thursday 7th 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.




