Solar PV Analysis of Guariba, Brazil
Guariba, São Paulo, Brazil, situated at latitude -21.3957 and longitude -48.2043, offers a promising location for solar energy generation throughout the year. This tropical setting benefits from consistent sunlight, with seasons primarily characterized by wet and dry periods rather than significant temperature fluctuations.
The solar potential in Guariba demonstrates a favorable year-round profile. During the summer months, solar panels can be expected to produce an impressive 6.80 kWh per day for each kilowatt of installed capacity. Spring follows closely behind with 6.33 kWh/day, while autumn yields 5.72 kWh/day. Even during the winter, which sees the lowest output, panels still generate a respectable 5.02 kWh/day.
For those considering fixed panel installations in Guariba, São Paulo, the ideal tilt angle to maximize year-round solar production is 20 degrees facing North. This angle has been carefully calculated to optimize energy capture across all seasons, taking into account the Earth's elliptical orbit and the location's specific solar elevation angles.
Seasonal Variations and Optimal Times
While Guariba enjoys relatively consistent solar potential throughout the year, there are still some seasonal variations to consider. The summer months (December to February) offer the highest energy yield, making this the prime time for solar generation. Spring (September to November) follows closely, providing excellent conditions for solar power production.
Although winter (June to August) sees a slight dip in output, it's important to note that the reduction is not as dramatic as in regions farther from the equator. This means that even during the "least ideal" time of year, solar panels in Guariba can still produce a significant amount of energy.
Environmental and Weather Considerations
While Guariba's location is generally favorable for solar energy production, there are a few factors to consider:
- Rainfall: The region experiences a wet season, typically from October to March. Heavy rains can temporarily reduce solar output and may require more frequent panel cleaning.
- Dust and pollen: During drier periods, dust accumulation on panels can slightly decrease efficiency.
To mitigate these issues, consider implementing an automated cleaning system or scheduling regular manual cleaning. Additionally, using high-quality, weather-resistant panels and ensuring proper drainage around the installation can help maintain optimal performance throughout the year.
Overall, Guariba presents an excellent location for solar PV installations, with consistent year-round energy production potential and manageable environmental factors.
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 Guariba
Seasonal solar PV output for Latitude: -21.3957, Longitude: -48.2043 (Guariba, 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 20° North in Guariba, Brazil
To maximize your solar PV system's energy output in Guariba, Brazil (Lat/Long -21.3957, -48.2043) throughout the year, you should tilt your panels at an angle of 20° 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 Guariba, 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 Guariba, Brazil. As mentioned earlier, for fixed-panel solar PV installations, it is optimal to maintain a 20° North tilt angle throughout the year.
| Overall Best Summer Angle | Overall Best Autumn Angle | Overall Best Winter Angle | Overall Best Spring Angle |
|---|---|---|---|
| 5° North in Summer | 27° North in Autumn | 37° North in Winter | 15° 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 Guariba, 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 Guariba, 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 Guariba, Brazil
The area around Guariba, Brazil, located at latitude -21.3957 and longitude -48.2043, is characterized by gently rolling terrain typical of the interior of São Paulo state. This region is part of the Brazilian Plateau, which features a mix of low hills, shallow valleys, and relatively flat expanses.
The landscape is predominantly rural, with a patchwork of agricultural fields interspersed with patches of remnant vegetation. The topography is generally not very steep, with gradual elevation changes across the area. The average elevation in this region is around 500 to 600 meters above sea level.
Rivers and streams crisscross the terrain, creating a network of small watersheds. These waterways have, over time, carved gentle depressions in the landscape, but dramatic cliffs or deep canyons are not typical features of this area.
For large-scale solar PV installations, the most suitable areas nearby would be the relatively flat or gently sloping open spaces that are currently used for agriculture or are otherwise undeveloped. Ideal locations would have the following characteristics:
- Minimal shading from surrounding vegetation or structures
- South-facing slopes (in the Southern Hemisphere) for optimal sun exposure
- Proximity to existing power infrastructure for easier grid connection
- Areas with lower agricultural productivity to minimize land-use conflicts
- Locations away from environmentally sensitive areas or protected habitats
The region's abundant sunshine and generally clear skies make it potentially well-suited for solar energy production. However, specific site assessments would be necessary to determine the most appropriate locations for large-scale solar PV installations, taking into account factors such as local zoning regulations, environmental impact, and access to transmission lines.
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!
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Article Details for Citation
Author: Aaron Robinson
Publisher: profileSOLAR.com
First Published: Saturday 3rd of August 2024
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.
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.
