Solar Energy Potential in Porto Feliz, São Paulo, Brazil
Porto Feliz, São Paulo, Brazil, located at latitude -23.2145 and longitude -47.5278, offers favorable conditions for solar energy generation throughout the year. This tropical location benefits from relatively consistent sunlight patterns, though with seasonal variations in energy output. The solar production data shows a clear seasonal pattern. Summer months yield the highest energy output at 6.55kWh per day for each kilowatt of installed solar capacity. Spring follows as the second most productive season with 5.89kWh/day, while autumn generates 5.28kWh/day. Winter, though less productive, still maintains a respectable 4.39kWh/day per installed kilowatt. For maximizing year-round solar energy production in Porto Feliz, São Paulo, fixed solar panels should be installed at a tilt angle of 21 degrees facing North. This carefully calculated angle optimizes the capture of available sunlight throughout the changing seasons, balancing the higher sun angles of summer with the lower sun positions during winter months.Environmental and Weather Considerations
Several factors could potentially impact solar energy production in Porto Feliz:- Seasonal rainfall patterns: The region experiences distinct wet and dry seasons. Heavy rainfall during the wet season (typically summer) may reduce solar efficiency due to cloud cover, despite this being when the sun is most intense.
- Dust and pollen accumulation: Agricultural activities in surrounding areas can generate airborne particles that settle on panels, reducing efficiency.
- High humidity levels: The tropical climate brings elevated humidity that can accelerate degradation of system components if not properly protected.
Preventative Measures
To maximize solar energy production in Porto Feliz, São Paulo, several preventative measures are recommended: Installing self-cleaning panel systems or implementing regular cleaning schedules can mitigate dust accumulation issues. Using weather-resistant components with proper IP (Ingress Protection) ratings will help systems withstand the humid conditions and seasonal heavy rainfall. Considering a slight adjustment to the standard 21-degree tilt angle might be beneficial during installation if the primary goal is maximizing production during the drier winter months, though this would come at the expense of optimal year-round performance. The consistent solar resource throughout the year makes Porto Feliz well-suited for solar PV installation, with even the least productive winter season delivering reasonable energy output. This makes the location viable for year-round solar energy generation, with only modest seasonal adjustments needed in energy planning.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 Porto Feliz
Seasonal solar PV output for Latitude: -23.2145, Longitude: -47.5278 (Porto Feliz, 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 21° North in Porto Feliz, Brazil
To maximize your solar PV system's energy output in Porto Feliz, Brazil (Lat/Long -23.2145, -47.5278) throughout the year, you should tilt your panels at an angle of 21° 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 Porto Feliz, 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 Porto Feliz, Brazil. As mentioned earlier, for fixed-panel solar PV installations, it is optimal to maintain a 21° North tilt angle throughout the year.
| Overall Best Summer Angle | Overall Best Autumn Angle | Overall Best Winter Angle | Overall Best Spring Angle |
|---|---|---|---|
| 7° North in Summer | 29° North in Autumn | 39° North in Winter | 16° 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 Porto Feliz, 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 Porto Feliz, 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 Porto Feliz, Brazil
The topography around Porto Feliz, Brazil presents a varied landscape characterized by gentle rolling hills, plateaus, and river valleys. Located in the interior of São Paulo state, the region sits within the Paraná River Basin, with the Tietê River flowing through it - a waterway historically significant for the exploration and settlement of Brazil's interior. The terrain generally exhibits moderate elevation changes rather than dramatic mountainous features, with altitudes typically ranging between 500-650 meters above sea level. The area surrounding Porto Feliz is part of the larger Paulista Plateau (Planalto Paulista), a geological formation that covers much of São Paulo state. This plateau has been shaped by millions of years of erosion, creating a landscape of undulating hills with rounded tops and gradual slopes. The soil composition tends to be predominantly red latosols, which are weathered, clay-rich soils typical of tropical regions with good drainage characteristics.
Vegetation and Land Use
The natural vegetation of the region historically consisted of Atlantic Forest (Mata Atlântica) and patches of cerrado (tropical savanna). However, much of the original vegetation has been modified through centuries of agricultural development. Today, the landscape is a mosaic of agricultural fields, pastures, scattered forest fragments, and urban areas. Sugarcane plantations, citrus orchards, and cattle ranching are common agricultural activities that have shaped the contemporary landscape.Solar PV Potential Areas
For large-scale solar photovoltaic installations, several areas around Porto Feliz offer favorable conditions. The most suitable locations would be: The elevated plateaus to the north and northwest of Porto Feliz present excellent opportunities for solar development. These areas feature relatively flat terrain with good solar exposure throughout the day. The higher elevation reduces the risk of morning fog that can sometimes affect lower-lying areas near the river. The gently sloping hills to the east and southeast also offer promising sites. These locations have favorable topographical orientation, often with north-facing slopes that maximize sun exposure in the Southern Hemisphere. The moderate slopes provide natural drainage while not being steep enough to complicate construction. Agricultural lands that are less productive or underutilized, particularly in the western portions of the region, could be repurposed for solar installations. These areas often already have access roads and are relatively clear of dense vegetation, reducing development costs. Areas to avoid include the immediate riparian zones along the Tietê River and its tributaries, which may be subject to flooding and have higher ecological sensitivity. Additionally, the more densely forested patches that remain should be preserved for their biodiversity value. The region's overall topography provides good drainage, reducing concerns about water accumulation that could affect solar installations. The moderate relief also means that earthworks required for creating level surfaces for solar arrays would be manageable in most locations. The combination of gently rolling terrain, adequate elevation, and extensive areas of already-cleared land makes the Porto Feliz region generally well-suited for solar PV development, with specific site selection depending on detailed local assessments of slope, aspect, and existing land use.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: Thursday 29th of May 2025
Last Updated: Monday 21st of July 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.
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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.




