Solar PV Potential in Assis, São Paulo, Brazil

Assis, São Paulo, Brazil, located at latitude -22.5864 and longitude -50.4303, offers promising conditions for solar photovoltaic (PV) energy generation throughout the year. This tropical location benefits from relatively consistent sunlight patterns across seasons, though with notable seasonal variations in energy output. The solar production potential shows a clear seasonal pattern. During summer, solar panels can generate an impressive 7.07 kWh per day for each kilowatt of installed capacity. Spring follows as the second most productive season with 6.31 kWh/day. Autumn sees a moderate decrease to 5.63 kWh/day, while winter represents the lowest output period with 4.65 kWh/day per kilowatt installed.

Optimal Panel Positioning

For fixed solar panel installations in Assis, São Paulo, the ideal tilt angle to maximize year-round energy production is 20 degrees facing North. This specific angle has been calculated to optimize solar capture throughout the year, accounting for the Earth's elliptical orbit and Assis's position in the Southern Hemisphere.

Environmental and Weather Considerations

Several environmental factors may impact solar production in Assis:

• Seasonal rainfall: The region experiences a distinct wet season which can temporarily reduce solar output due to cloud cover. Installing slightly elevated panels with good drainage systems can minimize the impact of heavy rainfall.
• Dust accumulation: During dry periods, dust can build up on panel surfaces, potentially reducing efficiency by 5-15%. Regular cleaning schedules and possibly automated cleaning systems are recommended.
• Temperature considerations: High tropical temperatures can slightly reduce panel efficiency. Ensuring adequate airflow beneath panels through proper mounting techniques can help mitigate this effect.

Best Periods for Solar Generation

The summer months (December through February) represent the peak generation period in Assis, São Paulo, with daily output exceeding 7 kWh per installed kilowatt. The spring months (September through November) also offer excellent generation potential above 6 kWh/day. While winter shows reduced output, it's worth noting that even during this "low" season, the 4.65 kWh/day generation capacity remains substantial compared to many non-tropical locations globally. This relatively consistent year-round production makes Assis an attractive location for solar PV installations with good return on investment potential throughout the year.

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 Assis

Seasonal solar PV output for Latitude: -22.5864, Longitude: -50.4303 (Assis, 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 Assis, Brazil

To maximize your solar PV system's energy output in Assis, Brazil (Lat/Long -22.5864, -50.4303) 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 Assis, 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 Assis, 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
7° North in Summer	28° North in Autumn	38° 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 Assis, 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 Assis, 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 Assis, Brazil

The city of Assis is situated in the southwestern region of São Paulo state, Brazil. The topography in this area is characterized by gently rolling hills and plateaus, typical of the broader Paranapanema Valley region. The terrain around Assis features modest elevation changes, with the city itself positioned at approximately 560 meters above sea level. This undulating landscape is part of the larger Paraná Basin, a significant geological formation in South America. The surrounding countryside consists primarily of open spaces with scattered vegetation, transitioning between the Atlantic Forest and Cerrado biomes. The regional landscape has been significantly transformed by agricultural activities, with extensive areas dedicated to crops such as soybeans, corn, and sugarcane. These agricultural modifications have created large open expanses with minimal shading obstacles.

Solar PV Suitability in the Region

The areas surrounding Assis present several favorable conditions for large-scale solar photovoltaic installations. The most suitable locations would be the gently sloping terrains facing northward (in the Southern Hemisphere, north-facing slopes receive more direct sunlight). These areas maximize solar exposure throughout the day and across seasons. Particularly promising are the elevated plateaus to the north and northeast of Assis. These higher elevation areas typically experience less morning fog and atmospheric interference. The relatively flat terrain requires minimal grading for installation, reducing construction costs for large-scale solar facilities. The agricultural lands surrounding the city, especially those currently used for annual crops, could be ideal candidates for solar development. These areas already have reduced tree cover and often have existing access to roads and electrical infrastructure. The soil in many of these agricultural zones is well-drained, which helps prevent flooding issues that could compromise solar array foundations. Areas to avoid would include the steeper slopes along river valleys, particularly along the Paranapanema River to the south, and any remaining forest fragments which have environmental protection status. Additionally, low-lying areas near water bodies may experience more frequent fog conditions and higher humidity, potentially reducing solar efficiency. The western portions of the municipality generally feature more consistent topography with fewer steep variations, making these areas technically simpler for large-scale installations. However, any specific site selection would require detailed ground-level assessment of local drainage patterns, soil stability, and access to transmission infrastructure.

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.