Solar Energy Potential in Birigui, São Paulo, Brazil

Birigui, São Paulo, Brazil, located at latitude -21.2397 and longitude -50.3368, offers promising conditions for solar energy production throughout the year. This tropical location benefits from consistent sunlight patterns, with seasons defined more by rainfall variations than temperature extremes. The solar energy generation potential in Birigui follows a predictable seasonal pattern. During summer months, solar panels can produce an impressive 6.98 kWh per day for each kilowatt of installed capacity. Spring follows as the second most productive season with 6.44 kWh/day, while autumn yields 5.78 kWh/day. Winter, though less productive, still maintains a respectable output of 4.93 kWh/day per kilowatt installed.

Seasonal Variations and Optimal Installation

This seasonal pattern reveals that Birigui experiences approximately 40% more solar energy production in summer compared to winter. Despite this variation, the region's year-round production remains strong compared to many global locations, making it an excellent candidate for solar PV installations. For fixed solar panel installations in Birigui, São Paulo, the ideal tilt angle to maximize year-round energy production is 19 degrees facing North. This specific angle optimizes the panels' exposure to the sun's path throughout the year, accounting for the Earth's elliptical orbit and Birigui's position in the Southern Hemisphere.

Environmental Considerations

Several environmental factors could potentially impact solar production in Birigui:

• Dust accumulation during dry seasons can reduce panel efficiency by 5-15% if not regularly maintained
• Heavy rainfall during wet seasons may temporarily reduce production, though it helps naturally clean panels
• Potential for occasional hail storms, particularly during transition seasons

Preventative Measures

To maximize energy production in Birigui, São Paulo, several preventative measures are recommended: Installing panels with self-cleaning hydrophobic coatings can help mitigate dust accumulation issues during dry periods. Scheduling quarterly professional cleanings, particularly before and after the wet season, will maintain optimal efficiency. Additionally, using hail-resistant panels with tempered glass can protect the investment from weather damage. Incorporating a monitoring system that tracks daily production can help quickly identify any unexpected drops in efficiency, allowing for prompt maintenance. This is particularly valuable during seasonal transitions when weather patterns may be less predictable. Overall, Birigui presents an excellent location for solar energy production with strong year-round potential and manageable environmental challenges that can be addressed through proper installation and maintenance practices.

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 Birigui

Seasonal solar PV output for Latitude: -21.2397, Longitude: -50.3368 (Birigui, 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 Birigui, Brazil

To maximize your solar PV system's energy output in Birigui, Brazil (Lat/Long -21.2397, -50.3368) 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 Birigui, 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 Birigui, 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	27° North in Autumn	37° 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 Birigui, 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 Birigui, 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 Birigui, Brazil

The region surrounding Birigui in the state of São Paulo, Brazil, features a predominantly flat to gently undulating landscape. Situated in the northwestern portion of São Paulo state, Birigui lies within the Paraná River basin, characterized by modest elevation changes and wide, open terrain. The topography consists mainly of low rolling hills with gradual slopes rather than steep mountains or dramatic valleys.

Local Terrain Features

The area around Birigui sits at an average elevation of approximately 400 meters above sea level. The landscape was formed by ancient geological processes that created the broad plateaus of the region. The terrain gradually slopes toward the northwest, where the Paraná River flows. Several smaller rivers and streams traverse the area, including the Tietê River to the south, creating shallow valleys within the otherwise level landscape. Native vegetation in undeveloped areas consists primarily of cerrado (tropical savanna) and remnants of Atlantic Forest, though much of the natural landscape has been converted to agricultural use. The soil composition is predominantly clay-rich with areas of sandy loam, resulting from the weathering of the underlying basaltic rock formations.

Optimal Areas for Solar PV Development

The relatively flat terrain throughout the region surrounding Birigui presents favorable conditions for large-scale solar photovoltaic installations. Several characteristics make specific nearby areas particularly suitable: The northwestern sectors of the region, extending toward the municipalities of Araçatuba and Santo Antônio do Aracanguá, offer especially promising locations. These areas feature extensive tracts of level land with minimal shading obstacles and good drainage properties. The gentle slopes in these locations are typically oriented toward the north, which in the Southern Hemisphere maximizes solar exposure throughout the year. Agricultural lands southwest of Birigui, particularly in the direction of Coroados and Glicério, also present excellent potential for solar development. These areas combine favorable topography with proximity to existing electrical infrastructure, potentially reducing interconnection costs for large installations. The plateau regions extending east toward Penápolis feature slightly higher elevations with consistent, moderate slopes. These areas benefit from reduced atmospheric interference and minimal fog occurrence, conditions that enhance solar irradiance capture efficiency. Areas to avoid include the immediate riparian zones along the region's rivers and streams, which may be subject to seasonal flooding and often host the remaining fragments of native forest. Additionally, the more densely populated urban centers would be less suitable due to space limitations and higher land costs. The region's climate complements its favorable topography, with minimal cloud cover during most of the year and relatively low precipitation compared to other parts of Brazil, especially during the winter months (June to August).

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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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.