Terra Rica, Paraná, Brazil presents a moderately favorable location for year-round solar photovoltaic energy generation, though with notable seasonal variations that potential solar installers should carefully consider.
Seasonal Solar Performance
The solar energy output at Terra Rica shows significant seasonal fluctuation throughout the year. Summer delivers the strongest performance at 6.98 kWh per day per kW of installed capacity, making it the peak season for solar generation. Spring follows as the second-best performing season with 6.28 kWh per day per kW, while autumn drops to 5.72 kWh per day per kW. Winter presents the most challenging period for solar generation, producing only 4.51 kWh per day per kW of installed capacity. This represents a substantial 35% decrease compared to summer output, which is quite significant for a tropical location and indicates that seasonal weather patterns substantially impact solar irradiance during the cooler months.Optimal Installation Configuration
For maximum year-round energy production at Terra Rica, Paraná, solar panels should be installed at a fixed tilt angle of 20 degrees facing North. This angle has been calculated to optimize total annual solar output by accounting for the sun's varying elevation throughout the year and weighting these angles according to actual solar irradiance potential at this specific latitude.Environmental and Weather Factors
Several local factors could potentially impede solar production at Terra Rica and require careful consideration during installation planning. The most significant concern is the pronounced seasonal variation in solar output, with winter production dropping dramatically compared to summer levels. This substantial seasonal difference suggests that cloud cover, atmospheric moisture, or other weather patterns during winter months significantly reduce solar irradiance. When designing a solar system, installers should account for this winter performance dip by potentially oversizing the array if consistent year-round power is required. Tropical locations like Terra Rica often experience intense rainfall during wet seasons, which can create several challenges for solar installations. Heavy rains can deposit dirt, debris, and organic matter on panel surfaces, reducing their efficiency. Additionally, high humidity levels common in tropical climates can accelerate corrosion of electrical components and mounting hardware if not properly protected.Preventative Measures for Optimal Performance
To maximize energy production despite these environmental challenges, several preventative measures should be implemented during installation:- Install panels with adequate spacing and ventilation to prevent moisture buildup and allow for proper air circulation
- Use marine-grade or tropical-rated electrical components and mounting systems specifically designed to resist corrosion in high-humidity environments
- Design the mounting system with appropriate drainage to prevent water accumulation around panel frames and electrical connections
- Plan for regular cleaning and maintenance schedules, particularly important during and after wet seasons when debris accumulation is highest
- Consider installing monitoring systems to quickly identify performance issues related to soiling or equipment degradation
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 Terra Rica
Seasonal solar PV output for Latitude: -22.7327, Longitude: -52.6846 (Terra Rica, 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 Terra Rica, Brazil
To maximize your solar PV system's energy output in Terra Rica, Brazil (Lat/Long -22.7327, -52.6846) 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 Terra Rica, 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 Terra Rica, 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 Terra Rica, 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 Terra Rica, Brazil.
Our calculation method
- Solar Position:
We determine the Sun's position on the Winter solstice using the location's latitude and solar declination. - Shadow Projection:
We calculate the shadow length cast by panels using trigonometry, considering panel tilt and the Sun's elevation angle. - 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 Terra Rica, Brazil
Topographical Features of Terra Rica Region
Terra Rica is situated in the northwestern region of Paraná state, Brazil, within an area characterized by gently rolling terrain and relatively modest elevation changes. The landscape around this municipality consists primarily of undulating plains and low hills, with elevations typically ranging between 300 and 500 meters above sea level. This region forms part of the broader Paraná Plateau, which extends across much of the state and creates a predominantly flat to gently sloping topographical profile.
The terrain surrounding Terra Rica features expansive areas of agricultural land, with large fields that have been cleared and leveled for crop production, particularly soybeans, corn, and sugarcane. These agricultural areas demonstrate the relatively flat nature of the landscape, as mechanized farming operations require terrain that is not excessively steep or irregular. The natural vegetation in undeveloped areas consists of remnants of Atlantic Forest and Cerrado savanna, though much of the original forest cover has been converted to agricultural use over the past several decades.
Water features in the region include several small rivers and streams that flow through gentle valleys, creating minor topographical variations in an otherwise consistent landscape. The drainage patterns follow the natural slope of the land, which generally trends toward the Paraná River system to the west. These waterways have carved shallow valleys into the terrain, but the overall relief remains quite subdued compared to other regions of Brazil.
Optimal Areas for Large-Scale Solar Development
The topographical characteristics around Terra Rica present several advantages for large-scale solar photovoltaic installations. The extensive flat to gently rolling terrain provides ideal conditions for solar panel arrays, as these areas require minimal grading and site preparation compared to steeper or more irregular landscapes. The agricultural plains that dominate the region offer vast expanses of relatively uniform elevation, which facilitates the installation of ground-mounted solar systems with consistent orientation and minimal shading issues.
Areas immediately to the south and southeast of Terra Rica appear particularly well-suited for solar development, where the terrain is especially flat and consists of large, contiguous parcels of land. These zones benefit from minimal topographical obstacles and possess the gentle slopes necessary for proper drainage while maintaining optimal solar panel positioning. The existing agricultural infrastructure in these areas, including access roads and electrical connections, could potentially support the development of utility-scale solar facilities.
The northwestern and western portions of the Terra Rica area also present favorable conditions for solar installations, particularly where the landscape transitions into broader agricultural plains. These areas feature consistent elevations and minimal vegetation that would require clearing, making them economically attractive for large-scale development. The gentle topography in these zones allows for efficient panel layout designs and reduces the complexity of construction and maintenance operations.
Regions near existing transportation corridors and electrical infrastructure would be most practical for solar development, as the flat terrain facilitates both construction access and grid connection. The agricultural nature of much of the surrounding landscape means that large parcels of suitable land are potentially available, and the existing land use patterns demonstrate that the terrain can support large-scale industrial activities without significant environmental constraints related to slope stability or erosion concerns.
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!
Citation Guide
Article Details for Citation
Author: Aaron Robinson
Publisher: profileSOLAR.com
First Published: Monday 30th of June 2025
Last Updated: Tuesday 5th of August 2025
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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
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