Faxinal, Paraná, Brazil, located in the Southern Sub Tropics at coordinates -24.0251, -51.3021, offers reasonably good conditions for year-round solar energy generation, though with notable seasonal variations that potential solar installers should consider.

Seasonal Solar Production Performance

The location shows strong seasonal patterns in solar energy output. Summer delivers the highest production at 6.90 kWh per day per kW of installed solar capacity, making it the peak season for energy generation. Spring follows as the second-best performing season with 6.04 kWh per day per kW, while autumn drops to 5.31 kWh per day per kW. Winter represents the lowest production period at 4.23 kWh per day per kW of installed capacity. This seasonal variation means that solar installations in Faxinal will generate approximately 63% more electricity during summer compared to winter months. The shoulder seasons of spring and autumn provide moderate production levels, with spring performing notably better than autumn.

Optimal Panel Configuration

For maximum year-round energy production at this location, solar panels should be installed at a fixed tilt angle of 21 degrees facing North. This angle has been calculated to optimize total annual output by accounting for the sun's changing position throughout the year and weighting the optimal daily angles by actual solar energy potential.

Local Environmental and Weather Factors

Several regional factors in Faxinal could potentially impact solar energy production and should be considered during installation planning:

• Subtropical humidity and moisture: The Southern Sub Tropical climate brings high humidity levels that can cause moisture buildup on panels, reducing light transmission and energy output
• Heavy rainfall periods: Intense seasonal rains can leave water spots and debris on panels, while also creating periods of extended cloud cover
• Agricultural dust and particles: Rural Brazilian locations often experience dust from farming activities and unpaved roads that can accumulate on panel surfaces
• Vegetation growth: The warm, humid climate promotes rapid plant growth that could create shading issues if not properly managed

Preventative Measures for Enhanced Performance

To maximize solar energy production despite these environmental challenges, several installation strategies can be implemented: Regular cleaning systems should be incorporated into the solar installation design. This includes planning for easy access to panels and considering automated cleaning systems in areas with heavy dust or agricultural activity. The subtropical climate makes frequent cleaning particularly important during humid seasons. Proper drainage and ventilation around panel installations help prevent moisture-related issues. Panels should be mounted with adequate clearance from roofing surfaces to allow air circulation, reducing humidity buildup and helping panels operate at optimal temperatures. Strategic vegetation management around solar installations prevents shading issues. This involves selecting installation sites away from large trees and implementing regular trimming schedules for nearby vegetation that could grow to interfere with sunlight access. Investing in high-quality panel coatings and materials designed for humid subtropical environments can improve long-term performance. Anti-reflective coatings that resist water spotting and panels with robust sealing against moisture intrusion are particularly valuable in this climate zone.

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 Faxinal

Seasonal solar PV output for Latitude: -24.0251, Longitude: -51.3021 (Faxinal, 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 21° North in Faxinal, Brazil

To maximize your solar PV system's energy output in Faxinal, Brazil (Lat/Long -24.0251, -51.3021) throughout the year, you should tilt your panels at an angle of 21° 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 Faxinal, 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 Faxinal, Brazil. As mentioned earlier, for fixed-panel solar PV installations, it is optimal to maintain a 21° 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	30° 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 Faxinal, 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 Faxinal, 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 Faxinal, Brazil

Topographical Features of Faxinal, Brazil

The region around Faxinal in Paraná state sits within the Second Plateau of Paraná, characterized by gently rolling hills and undulating terrain typical of Brazil's southern interior. This area forms part of the broader Paraná Basin, where sedimentary rock formations create a landscape of moderate elevation changes and well-drained valleys. The topography consists primarily of rounded hills separated by shallow valleys, with elevations generally ranging between 800 and 1,200 meters above sea level. The terrain exhibits a characteristic pattern of long, gentle slopes interspersed with flatter ridge tops and broader valley floors. These landforms result from millions of years of erosion acting on the underlying sandstone and basalt formations. The landscape lacks dramatic elevation changes, making it relatively stable and accessible for development projects. Local drainage patterns follow the natural topographical gradients, with small streams and tributaries flowing through the valleys toward larger river systems. The rolling nature of the terrain creates natural water collection points in the lower-lying areas, while the higher elevations typically offer better drainage and less risk of flooding.

Optimal Areas for Large-Scale Solar Development

The most suitable locations for extensive solar photovoltaic installations would be the elevated ridge areas and gently sloping hillsides that face north or northeast. These positions take advantage of the natural topography to maximize solar exposure throughout the day while maintaining reasonable construction costs. The broader hilltops provide substantial flat or gently sloping areas that can accommodate large arrays without requiring extensive grading or earthwork. South-facing slopes should generally be avoided for solar installations in this southern hemisphere location, as they receive significantly less direct sunlight. Similarly, the narrow valley bottoms, while often flatter, may experience shading from surrounding hills during parts of the day and could be subject to fog formation or moisture accumulation. The intermediate slopes between the valley floors and ridge crests often present the best compromise between available land area, solar exposure, and construction practicality. These areas typically offer sufficient space for large installations while avoiding the potential drainage issues of valley locations and the wind exposure challenges of the highest elevations. Areas with gradual slopes of less than 15 degrees are particularly well-suited for solar development, as they require minimal grading while still providing good drainage. The region's relatively stable geology also reduces concerns about ground movement or foundation issues that might affect long-term solar installations.

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.