Barretos, São Paulo, Brazil, located at latitude -20.5252 and longitude -48.6768, offers a promising environment for solar energy generation throughout the year. This tropical location benefits from consistent sunlight, with seasons primarily characterized by wet and dry periods rather than significant temperature variations.

Seasonal Solar Performance

The solar energy potential in Barretos demonstrates a favorable year-round profile. Summer stands out as the most productive season, with an impressive daily output of 6.92 kWh per kW of installed solar capacity. Spring follows closely, generating 6.37 kWh/day. Autumn maintains a solid performance at 5.85 kWh/day, while winter, though slightly less productive, still yields a respectable 5.23 kWh/day. This relatively small variation between seasons indicates that Barretos is an excellent location for consistent solar energy production throughout the year. The peak generation period spans from late spring through summer, making it an ideal time for maximizing solar output.

Optimal Panel Positioning

For fixed solar panel installations in Barretos, São Paulo, the ideal tilt angle to maximize year-round energy production is 19 degrees facing North. This angle takes into account the location's latitude and the Earth's elliptical orbit, ensuring optimal exposure to sunlight throughout the year.

Environmental Considerations

While Barretos presents favorable conditions for solar energy generation, there are a few environmental factors to consider: 1. Rainfall: The region experiences a wet season, typically from October to March. Heavy rains can temporarily reduce solar panel efficiency. 2. Dust and pollen: During dry periods, accumulation of dust and pollen on panels may slightly decrease their performance. To mitigate these factors, consider implementing the following measures: - Install panels at the recommended 19-degree tilt to promote natural cleaning during rainfall. - Schedule regular cleaning and maintenance, especially during drier months. - Use anti-soiling coatings on panels to minimize dust accumulation. Overall, Barretos offers an excellent location for solar PV installations, with consistent year-round energy production potential and manageable environmental challenges.

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 Barretos

Seasonal solar PV output for Latitude: -20.5252, Longitude: -48.6768 (Barretos, 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 19° North in Barretos, Brazil

To maximize your solar PV system's energy output in Barretos, Brazil (Lat/Long -20.5252, -48.6768) throughout the year, you should tilt your panels at an angle of 19° 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 Barretos, 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 Barretos, Brazil. As mentioned earlier, for fixed-panel solar PV installations, it is optimal to maintain a 19° 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	26° North in Autumn	36° North in Winter	14° 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 Barretos, 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 Barretos, Brazil.

Our calculation method

1. Solar Position:
   We determine the Sun's position on the Winter solstice using the location's latitude and solar declination.
2. Shadow Projection:
   We calculate the shadow length cast by panels using trigonometry, considering panel tilt and the Sun's elevation angle.
3. 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 Barretos, Brazil

The region surrounding Barretos, Brazil, located at latitude -20.5252 and longitude -48.6768, is characterized by a relatively flat to gently rolling landscape. This area is part of the larger São Paulo state and sits within the Brazilian Plateau, a vast expanse of elevated terrain that covers much of eastern and central Brazil. The topography around Barretos features wide, open spaces with occasional low hills and shallow valleys. The terrain is predominantly composed of expansive plains, known locally as "cerrado," which is a type of tropical savanna ecosystem. These plains are interspersed with patches of woodland and gallery forests along the banks of rivers and streams that meander through the region.

Suitability for Large-Scale Solar PV

The topographical characteristics of the Barretos region make it particularly well-suited for large-scale solar photovoltaic (PV) installations. Several factors contribute to its potential as an ideal location for solar energy projects: Firstly, the flat to gently sloping terrain provides ample space for the installation of extensive solar panel arrays without the need for significant land modification. This reduces construction costs and environmental impact. Secondly, the open nature of the landscape means there are fewer natural obstacles, such as tall trees or steep hills, that could cast shadows on solar panels and reduce their efficiency. The lack of shading allows for optimal sun exposure throughout the day. The areas most suited for large-scale solar PV installations would be the expansive cerrado plains to the north and east of Barretos. These regions offer vast, uninterrupted stretches of land with minimal vegetation and human development. The flat topography in these directions extends for many kilometers, providing numerous potential sites for solar farms. Additionally, the areas to the southwest of Barretos, where the terrain remains relatively level but with slight undulations, could also be suitable for solar PV projects. These gentle slopes can be advantageous for solar panel placement, as they can be oriented to maximize sun exposure throughout the year. It's worth noting that while the topography is favorable, other factors such as proximity to power grid infrastructure, local environmental regulations, and land ownership patterns would also need to be considered when selecting specific sites for large-scale solar PV installations in the Barretos region.

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

Tell Us About Your Work

We love seeing how our research helps others! If you've cited this article in your work, we'd be delighted to hear about it. Drop us a line via our Contact Us page or on X, to share where you've used our information - we may feature a link to your work on our site. This helps create a network of valuable resources for others in the solar energy community and helps us understand how our research is contributing to the field. Plus, we occasionally highlight exceptional works that reference our research on our social media channels.

Feeling generous?

Share this with your friends!

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.