Alto Piquiri, Paraná, Brazil, located in the Southern Sub Tropics, offers good potential for year-round solar energy generation with some seasonal variation in output. The location experiences its highest solar production during summer months and lowest during winter, which is typical for locations in the Southern Hemisphere.

Seasonal Solar Performance

The solar energy output at Alto Piquiri varies significantly throughout the year. Summer delivers the strongest performance at 7.14 kWh per day per kW of installed solar capacity, making it the ideal time for maximum energy generation. Spring follows as the second-best season with 6.09 kWh per day per kW, while autumn produces 5.41 kWh per day per kW. Winter presents the most challenging period for solar generation, dropping to 4.08 kWh per day per kW of installed capacity. Despite this seasonal low, the winter output still represents a reasonable level of solar production that makes year-round solar viable at this location.

Optimal Panel Configuration

For fixed panel installations at Alto Piquiri, Paraná, the ideal tilt angle is 21 degrees facing North to maximize total year-round solar production. This angle is calculated by analyzing daily solar elevation angles throughout the year and weighting them according to solar irradiance data to determine the optimal compromise for consistent annual output.

Environmental and Weather Factors

Several local factors could potentially impact solar energy production at Alto Piquiri:

• Seasonal rainfall patterns: The subtropical climate typically brings wet summers and drier winters, which could reduce solar output during peak production months due to increased cloud cover
• High humidity levels: Subtropical conditions often create humid environments that can lead to moisture accumulation on solar panels, reducing their efficiency
• Agricultural dust and particles: Being in a rural Brazilian location, airborne dust from farming activities and unpaved roads could settle on solar panels
• Vegetation growth: The favorable subtropical growing conditions may cause rapid vegetation growth that could create shading issues if not properly managed

Preventative Measures for Optimal Performance

Several installation strategies can help maximize solar energy production despite these environmental challenges:

• Regular cleaning schedule: Implement monthly panel cleaning during dry periods and more frequent cleaning during dusty agricultural seasons
• Proper drainage design: Install panels with adequate spacing and drainage to prevent water accumulation and promote quick drying after rainfall
• Strategic site selection: Choose installation locations away from major dust sources and ensure clear sight lines to prevent shading from growing vegetation
• Quality mounting systems: Use corrosion-resistant mounting hardware suitable for humid subtropical conditions to ensure long-term structural integrity

Overall, Alto Piquiri represents a viable location for solar energy generation throughout the year, with proper planning and maintenance helping to overcome the environmental challenges typical of subtropical agricultural regions.

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 Alto Piquiri

Seasonal solar PV output for Latitude: -24.1297, Longitude: -53.3466 (Alto Piquiri, 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 Alto Piquiri, Brazil

To maximize your solar PV system's energy output in Alto Piquiri, Brazil (Lat/Long -24.1297, -53.3466) 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 Alto Piquiri, 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 Alto Piquiri, 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 Alto Piquiri, 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 Alto Piquiri, 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 Alto Piquiri, Brazil

Regional Topography and Landscape

Alto Piquiri sits in the western region of Paraná state, Brazil, within a landscape characterized by gently rolling hills and extensive agricultural plains. The terrain around this municipality represents part of the broader Paraná Plateau, where elevations typically range from 200 to 600 meters above sea level. The topography is predominantly flat to moderately undulating, with occasional low hills and shallow valleys carved by small streams and tributaries that eventually feed into the Piquiri River system. The region exhibits the classic features of Brazil's agricultural heartland, where vast expanses of relatively level terrain have been shaped by both geological processes and decades of intensive farming. Natural vegetation has been largely replaced by cultivated fields, creating an open landscape with minimal tree cover across much of the area. The gentle slopes and broad interfluves provide excellent drainage while maintaining stable soil conditions.

Geological Foundation and Surface Features

The underlying geology consists primarily of sedimentary rocks from the Paraná Basin, overlain by fertile soils that have developed from weathered basaltic materials. This geological foundation creates a stable platform with minimal risk of significant ground movement or subsidence. The surface is characterized by deep, well-drained soils that support intensive agriculture, indicating good structural stability for infrastructure development. Small watercourses meander through the landscape, creating shallow valleys that break up the otherwise uniform terrain. These drainage features are typically gentle and do not create significant topographical barriers. The overall relief is modest, with most elevation changes occurring gradually over considerable distances.

Optimal Areas for Large-Scale Solar Development

The most suitable locations for large-scale solar photovoltaic installations would be found on the broad, flat to gently sloping interfluves between the drainage valleys. These elevated areas offer several advantages including excellent drainage, stable ground conditions, and minimal shading from surrounding terrain features. The open agricultural landscape provides extensive areas of relatively level ground that could accommodate large solar arrays with minimal site preparation. Areas with south-facing slopes of less than 10 degrees would be particularly well-suited for solar installations, as they provide optimal orientation while maintaining manageable construction and maintenance conditions. The existing agricultural infrastructure, including road networks and electrical transmission lines, would facilitate development and grid connection for solar facilities. The absence of significant forest cover or protected natural areas across much of the agricultural zone means that large tracts of suitable land could potentially be available for solar development. Areas currently used for extensive cattle grazing or annual crop production would be most easily converted to solar use, as they typically have fewer permanent improvements and established infrastructure compared to more intensive agricultural operations.

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.