Solar Energy Potential in Aracoiaba, Ceará, Brazil
Aracoiaba, Ceará, Brazil, located at latitude -4.4905, longitude -38.6776, offers excellent conditions for solar energy generation throughout the year. This tropical location benefits from consistent sunlight patterns, making it highly suitable for photovoltaic (PV) installations. The seasonal electricity output data shows remarkably stable production across all seasons, with only minor fluctuations. During spring, solar panels produce their highest output at 7.09 kWh per day for each kilowatt installed. Winter follows with 6.23 kWh/day, then summer with 6.06 kWh/day, and autumn with 5.90 kWh/day. This consistency is typical of tropical locations where seasonal variations are less pronounced than in temperate regions. For fixed solar panel installations in Aracoiaba, Ceará, the ideal tilt angle is 4 degrees facing North. This slight tilt optimizes year-round energy capture by accounting for the location's proximity to the equator, where the sun passes nearly directly overhead throughout much of the year.Environmental and Weather Considerations
Several environmental factors could affect solar production in Aracoiaba:- Heavy rainfall during the wet season can temporarily reduce solar output due to cloud cover and direct precipitation on panels
- Dust accumulation is common in tropical regions, particularly during dry seasons
- High humidity levels may contribute to faster degradation of equipment if not properly protected
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 Aracoiaba
Seasonal solar PV output for Latitude: -4.4905, Longitude: -38.6776 (Aracoiaba, 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 4° North in Aracoiaba, Brazil
To maximize your solar PV system's energy output in Aracoiaba, Brazil (Lat/Long -4.4905, -38.6776) throughout the year, you should tilt your panels at an angle of 4° 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 Aracoiaba, 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 Aracoiaba, Brazil. As mentioned earlier, for fixed-panel solar PV installations, it is optimal to maintain a 4° North tilt angle throughout the year.
| Overall Best Summer Angle | Overall Best Autumn Angle | Overall Best Winter Angle | Overall Best Spring Angle |
|---|---|---|---|
| 11° South in Summer | 11° North in Autumn | 20° North in Winter | 2° South 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 Aracoiaba, 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 Aracoiaba, 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 Aracoiaba, Brazil
The topography around Aracoiaba, Brazil presents a diverse landscape characterized by gently rolling hills interspersed with relatively flat areas. Located in the northeastern state of Ceará, Aracoiaba sits approximately 74 kilometers from the state capital of Fortaleza. The region features elevations that typically range between 100 and 250 meters above sea level, creating a moderately undulating terrain. The area surrounding Aracoiaba falls within Brazil's semi-arid region known as the Sertão. This landscape is marked by a mixture of caatinga vegetation—a distinctive type of desert vegetation featuring thorny shrubs and small trees that have adapted to the dry conditions. During rainy seasons, these areas transform dramatically with bursts of greenery, while in dry periods the landscape takes on more muted tones.
Geographical Features
To the east of Aracoiaba, the terrain gradually descends toward the coastal plains of Ceará. In contrast, moving westward, the landscape becomes progressively more rugged with higher elevations. The municipality itself is situated in a transitional zone between these two distinct topographical regions. Water bodies in the vicinity include several small reservoirs and seasonal streams that flow more vigorously during the rainy season (typically January to May). The Aracoiaba River, though not substantial, influences local topography by creating small valleys and floodplains. Soil composition in the region consists primarily of sandy and clay-like materials, with rocky outcroppings visible in some areas, particularly in higher elevations. These geological features contribute to the varied texture of the landscape.Solar PV Potential Areas
For large-scale solar photovoltaic installations, several areas around Aracoiaba present favorable conditions. The most suitable locations would be the gently sloping plains to the south and southeast of the municipality. These areas benefit from minimal shadowing effects due to their open exposure and gradual inclines facing northward (optimal for the Southern Hemisphere). The relatively flat plateaus found approximately 10-15 kilometers west of Aracoiaba's center also present excellent opportunities for solar development. These elevated areas experience minimal obstruction from surrounding terrain and vegetation, allowing for maximum solar exposure throughout the day. Areas to avoid would include the more densely vegetated sections to the north, where the caatinga becomes thicker, and the steeper hillsides that could increase installation costs and maintenance challenges. Similarly, the seasonal floodplains near water bodies would present unnecessary risks to infrastructure. The soil stability in the recommended areas generally provides good foundation conditions for solar array mounting systems. The moderate elevation also helps mitigate dust accumulation compared to lower-lying areas, potentially reducing maintenance requirements for panel cleaning. Additionally, these preferred areas tend to have fewer competing land uses such as intensive agriculture, making them more readily available for development while minimizing potential conflicts with food production or conservation priorities.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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Article Details for Citation
Author: Aaron Robinson
Publisher: profileSOLAR.com
First Published: Sunday 29th 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.




