Solar PV Analysis of Catarina, Brazil
Catarina, Ceará, Brazil presents an excellent location for year-round solar PV energy generation. The seasonal electricity output data shows consistently high performance throughout all seasons, with production ranging from 5.87 kWh per day per kW of installed solar capacity in summer up to an impressive 7.22 kWh per day per kW in spring.
Seasonal Performance Analysis
The location demonstrates remarkable consistency in solar energy production across all seasons. Spring emerges as the peak production period at 7.22 kWh/day per kW, followed by winter at 6.41 kWh/day per kW. Even the lowest-producing season (summer) still delivers a robust 5.87 kWh/day per kW, indicating reliable energy generation year-round.
This seasonal pattern is typical for tropical locations where consistent sunlight availability means solar installations can maintain high productivity regardless of the time of year. The relatively small variation between seasons (only about 1.35 kWh difference between peak and lowest production) makes this location particularly attractive for solar investments.
Optimal Installation Configuration
For maximum year-round energy production at Catarina, Ceará, solar panels should be installed at a 6-degree tilt facing north. This optimal angle has been calculated by analyzing daily solar elevation angles at this specific latitude, weighting them by solar irradiance potential, and accounting for Earth's elliptical orbit patterns throughout the year.
Environmental and Weather Considerations
Several local factors could potentially impact solar production efficiency at this tropical location:
- High humidity and moisture - Can reduce panel efficiency and promote corrosion of electrical components
- Heavy rainfall during wet seasons - May temporarily reduce output and create maintenance challenges
- Dust and debris accumulation - Tropical environments often have high levels of organic matter that can coat panels
- Intense heat - Can reduce panel efficiency as photovoltaic cells perform less efficiently at very high temperatures
Preventative Measures for Optimal Performance
To maximize energy production and system longevity, several installation strategies should be implemented. Proper ventilation spacing behind panels helps manage heat buildup and maintains optimal operating temperatures. Using marine-grade electrical components and corrosion-resistant mounting systems protects against the high humidity environment.
Regular cleaning schedules become particularly important in tropical locations to remove dust, organic debris, and any residue from heavy rains. Installing panels with adequate drainage and easy access for maintenance will ensure consistent performance throughout both wet and dry seasons.
Overall, despite these environmental considerations, Catarina's location offers exceptional potential for solar energy generation with relatively straightforward mitigation strategies to address local challenges.
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 Catarina
Seasonal solar PV output for Latitude: -6.2502, Longitude: -39.9487 (Catarina, 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 6° North in Catarina, Brazil
To maximize your solar PV system's energy output in Catarina, Brazil (Lat/Long -6.2502, -39.9487) throughout the year, you should tilt your panels at an angle of 6° 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 Catarina, 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 Catarina, Brazil. As mentioned earlier, for fixed-panel solar PV installations, it is optimal to maintain a 6° North tilt angle throughout the year.
| Overall Best Summer Angle | Overall Best Autumn Angle | Overall Best Winter Angle | Overall Best Spring Angle |
|---|---|---|---|
| 10° South in Summer | 12° North in Autumn | 22° North in Winter | 0° 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 Catarina, 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 Catarina, 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 Catarina, Brazil
Topographical Features of the Catarina Region
Catarina is situated in the northeastern state of Ceará, Brazil, within the semi-arid Caatinga biome. The terrain in this region is characterized by relatively flat to gently rolling plains with occasional low hills and scattered rocky outcrops. The elevation around Catarina typically ranges from 200 to 400 meters above sea level, creating a landscape that is neither mountainous nor completely level.
The area features the typical topography of Brazil's northeastern interior, with broad, open spaces interrupted by seasonal riverbeds known as "riachos" that flow intermittently during the rainy season. These waterways have carved shallow valleys and depressions across the landscape over time. The soil composition includes patches of exposed bedrock, sandy areas, and clay deposits, with sparse vegetation consisting primarily of drought-resistant shrubs and small trees adapted to the semi-arid climate.
Rocky formations and small mesas dot the landscape, creating some variation in the otherwise predominantly flat terrain. These geological features, while adding character to the region, occupy relatively small portions of the total land area. The majority of the surrounding territory consists of open plains with gentle undulations that provide good drainage during the wet season.
Optimal Areas for Large-Scale Solar Development
The extensive flat plains surrounding Catarina present excellent opportunities for large-scale solar photovoltaic installations. The areas to the north and northwest of the town offer particularly suitable terrain, featuring broad expanses of level ground with minimal vegetation and few topographical obstacles. These zones provide the consistent, unobstructed surfaces necessary for efficient solar panel deployment and maintenance access.
The southeastern plains also demonstrate strong potential for solar development, with their gentle slopes providing natural drainage while maintaining the flat orientation ideal for solar arrays. The sparse vegetation in these areas reduces land clearing requirements, and the stable soil conditions can support the foundation systems needed for large solar installations.
Areas near the seasonal waterways should generally be avoided for solar development due to potential flooding risks and the slightly more undulating terrain found in these drainage zones. Similarly, the scattered rocky outcrops and small hills, while not covering extensive areas, would require additional site preparation costs and could create shading issues for solar panels.
The open nature of the landscape around Catarina provides excellent access for construction equipment and ongoing maintenance operations. The relatively uniform elevation across most of the region means that large solar installations can be developed without significant grading or earthwork, reducing both environmental impact and development costs. The absence of significant forested areas or sensitive ecological zones in the immediate vicinity further enhances the development potential for renewable energy projects in this region.
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
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.
