Itapevi, Brazil, located in the Southern Sub Tropics at latitude -23.5583 and longitude -46.9735, offers generally favorable conditions for solar PV energy generation throughout the year, though with seasonal variations.

Seasonal Solar Production

Solar energy production at this location shows clear seasonal patterns. Summer delivers the highest energy output at 6.06kWh per day for each kilowatt of installed capacity. Spring follows as the second most productive season with 5.33kWh/day, while autumn provides a respectable 5.06kWh/day. Winter shows the lowest production at 4.16kWh/day per kW installed, but still maintains reasonable generation capacity.

This seasonal variation means that a solar installation in Itapevi will produce about 45% more energy during peak summer days compared to the winter minimum. However, even during winter months, the production remains sufficient for many household and commercial applications.

Optimal Panel Positioning

For fixed solar panel installations in Itapevi, the ideal tilt angle to maximize year-round energy production is 22 degrees facing North. This specific angle optimizes the annual solar harvest by accounting for the location's position in the Southern Hemisphere and the Earth's elliptical orbit.

Environmental and Weather Considerations

Several factors could potentially impact solar production at this location. The subtropical climate of Itapevi brings a rainy season that typically occurs during summer months (December through March). While summer offers the highest solar potential, frequent afternoon thunderstorms during this period can temporarily reduce generation.

Air pollution from the greater São Paulo metropolitan area, of which Itapevi is part, may occasionally reduce solar irradiance reaching panels. Additionally, morning fog can be common during winter months, potentially delaying peak production until later in the day.

To mitigate these challenges, consider these preventative measures:

• Install self-cleaning panels or implement regular cleaning schedules to remove dust and pollution deposits
• Use micro-inverters or power optimizers to minimize production losses when parts of the array are shaded
• Consider slightly west-facing orientation (northwest) to capture more afternoon sun after morning fog clears
• Ensure proper drainage systems around ground-mounted installations to manage heavy seasonal rainfall
• Use corrosion-resistant mounting hardware suitable for the occasionally high humidity

Despite these considerations, Itapevi remains a viable location for solar energy production with good year-round potential and particularly strong performance from spring through autumn.

Note: The Southern Sub Tropics extend from -23.5° latitude South down to -35° latitude.

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 Itapevi

Seasonal solar PV output for Latitude: -23.5583, Longitude: -46.9735 (Itapevi, 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 22° North in Itapevi, Brazil

To maximize your solar PV system's energy output in Itapevi, Brazil (Lat/Long -23.5583, -46.9735) throughout the year, you should tilt your panels at an angle of 22° 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 Itapevi, 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 Itapevi, Brazil. As mentioned earlier, for fixed-panel solar PV installations, it is optimal to maintain a 22° North tilt angle throughout the year.

Overall Best Summer Angle	Overall Best Autumn Angle	Overall Best Winter Angle	Overall Best Spring Angle
8° North in Summer	29° North in Autumn	39° North in Winter	17° 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 Itapevi, 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 Itapevi, 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 Itapevi, Brazil

Itapevi, located in the state of São Paulo, Brazil, presents a diverse topographical landscape characterized by rolling hills, valleys, and varying elevations. The terrain around Itapevi is part of the Atlantic Plateau region, which extends across much of southeastern Brazil. This area features undulating topography with elevations generally ranging between 700 and 900 meters above sea level. The landscape surrounding Itapevi includes numerous small hills and ridges interspersed with shallow valleys and small streams. The region is situated on the western edge of the São Paulo metropolitan area, where the urban sprawl begins to transition into more rural settings. This transitional zone exhibits a mix of developed areas and natural terrain, with some remaining patches of Atlantic Forest vegetation on steeper slopes and protected areas. The Serra do Itaqui, a modest mountain range, lies to the west and northwest of Itapevi, creating more pronounced elevation changes in those directions. These higher elevations contribute to the variable terrain that defines the region. Water features are also present throughout the area, including the Tietê River basin which influences the local topography through its tributary streams and associated valleys.

Solar PV Potential Areas

For large-scale solar photovoltaic installations, several areas around Itapevi show promising characteristics based on topographical considerations. The most suitable locations would be: The gently sloping hillsides facing north, northeast, and northwest would be particularly advantageous for solar energy collection in the southern hemisphere. These areas receive more consistent solar exposure throughout the year due to their orientation. Several such hillsides can be found in the western and southwestern outskirts of Itapevi, where urban development becomes less dense. Plateau areas with relatively flat terrain also present excellent opportunities for large-scale solar installations. These locations, found primarily to the west and southwest of Itapevi's urban center, offer sufficient space for extensive arrays while minimizing the need for significant terrain modifications. The reduced shadowing effect on flat terrain also contributes to more consistent energy production. Areas that have already been cleared for agricultural use, particularly in the more rural western sections beyond Itapevi proper, represent practical options for solar development. These locations typically have reduced environmental impact concerns compared to forested areas and often feature the open, accessible terrain ideal for large installations. It's worth noting that while steeper slopes and densely vegetated areas are less suitable for large-scale solar development due to installation challenges and environmental considerations, the diverse topography around Itapevi provides numerous viable options for solar PV implementation. The most promising zones combine favorable orientation, minimal shadowing from surrounding terrain features, and accessible, stable ground conditions.

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.