Solar Energy Production in Iguaraci, Pernambuco, Brazil
Iguaraci, Pernambuco, Brazil, located at latitude -7.8432 and longitude -37.411, offers excellent conditions for solar photovoltaic (PV) energy generation throughout the year. This tropical location benefits from consistent sunlight patterns that make it highly suitable for solar power installations. The seasonal solar energy production data reveals strong performance across all four meteorological seasons. Spring stands out as the most productive period, with an impressive 7.48 kWh per day for each kilowatt of installed solar capacity. Summer follows with 6.58 kWh/day, while autumn delivers 6.25 kWh/day. Even during winter, which represents the least productive season, the output remains substantial at 5.78 kWh/day per kW installed.Optimal Panel Installation
For fixed solar panel installations in Iguaraci, Pernambuco, the ideal tilt angle to maximize year-round energy production is 7 degrees facing North. This specific angle has been calculated to optimize solar capture throughout the year, taking into account the location's proximity to the equator and seasonal solar patterns.Environmental and Weather Considerations
Several environmental factors could potentially affect solar production in Iguaraci:- Dust accumulation during dry seasons can reduce panel efficiency by creating a film that blocks sunlight absorption
- Intense tropical rainfall during wet seasons may temporarily reduce solar output
- High temperatures common in tropical regions can slightly decrease panel efficiency
Preventative Measures
To maximize solar energy production in Iguaraci, Pernambuco, several preventative measures can be implemented: Regular panel cleaning schedules should be established, particularly during dry seasons when dust accumulation is highest. Installing panels with a minimum tilt of 7 degrees not only optimizes sun exposure but also promotes natural cleaning during rainfall events. Temperature-related efficiency losses can be mitigated by ensuring adequate airflow beneath panels. Mounting systems that allow air circulation between the roof and panels can help dissipate heat and maintain higher efficiency levels. Additionally, investing in high-quality inverters designed to perform well in tropical conditions will help maximize energy harvest throughout the year, particularly during the highly productive spring months when output reaches 7.48 kWh/day per kW installed.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 Iguaraci
Seasonal solar PV output for Latitude: -7.8432, Longitude: -37.411 (Iguaraci, 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 7° North in Iguaraci, Brazil
To maximize your solar PV system's energy output in Iguaraci, Brazil (Lat/Long -7.8432, -37.411) throughout the year, you should tilt your panels at an angle of 7° 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 Iguaraci, 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 Iguaraci, Brazil. As mentioned earlier, for fixed-panel solar PV installations, it is optimal to maintain a 7° North tilt angle throughout the year.
| Overall Best Summer Angle | Overall Best Autumn Angle | Overall Best Winter Angle | Overall Best Spring Angle |
|---|---|---|---|
| 8° South in Summer | 14° North in Autumn | 24° North in Winter | 2° 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 Iguaraci, 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 Iguaraci, 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 Iguaraci, Brazil
The region surrounding Iguaraci in Pernambuco state, northeastern Brazil, presents a diverse topographical landscape characteristic of the Brazilian semi-arid interior. Located at approximately 7.8 degrees south latitude and 37.4 degrees west longitude, Iguaraci sits in a transitional zone between the humid coastal areas and the drier sertão (backlands) of Brazil's Northeast. The terrain around Iguaraci is predominantly characterized by rolling hills and modest plateaus, with elevations typically ranging between 500-700 meters above sea level. The landscape features a mix of gentle slopes interspersed with occasional more rugged terrain. This undulating topography is part of the Borborema Plateau system, a major geographical feature of northeastern Brazil that influences the local climate and hydrology.
Geological Features
The geological foundation of the area consists primarily of crystalline rocks, typical of Brazil's ancient shield formations. These Pre-Cambrian formations are often exposed in areas where erosion has worn away the soil cover, creating distinctive outcroppings known locally as "lajedos." The soil tends to be relatively thin and rocky in many places, particularly on higher ground and steeper slopes. Seasonal waterways, known as "riachos," cut through the landscape, forming small valleys. These watercourses typically flow during the rainy season (approximately March to June) and remain dry for much of the year. The Ipanema River, though not immediately adjacent to Iguaraci, influences the broader regional drainage pattern.Vegetation and Land Cover
The natural vegetation around Iguaraci is predominantly caatinga, a distinctive biome found only in Brazil's Northeast. This ecosystem features drought-resistant shrubs, cacti, and small trees that have adapted to the semi-arid conditions. The vegetation density varies seasonally, appearing sparse and dormant during dry periods but transforming dramatically with the arrival of rains. Human activity has modified significant portions of the landscape, with areas cleared for agriculture, livestock raising, and settlements. These anthropogenic changes have created a patchwork of natural vegetation interspersed with cultivated fields and pastures.Solar PV Suitability
For large-scale solar photovoltaic development, several areas near Iguaraci present favorable conditions. The most suitable locations would be: The gently sloping plains to the south and southwest of Iguaraci offer extensive relatively flat terrain with minimal shading concerns. These areas receive consistent solar radiation throughout the year due to limited cloud cover during most seasons. The stable geological foundation provides good conditions for the installation of mounting structures. Elevated plateaus in the region, particularly those with northward-facing aspects, would maximize exposure to the sun's path across the northern sky (given the southern hemisphere location). These higher areas also tend to experience less dust than lower valleys, potentially reducing maintenance requirements for solar panels. Areas with sparse caatinga vegetation represent lower-cost development opportunities, as they would require minimal clearing while also having less ecological impact. These zones are typically found on the drier, more elevated portions of the landscape.Topographical Considerations
When evaluating specific sites for solar development, several topographical factors warrant consideration. Areas with slopes exceeding 10-15 degrees generally present increased installation costs and engineering challenges, though modern mounting systems can accommodate moderate gradients. South-facing slopes (in this southern hemisphere location) receive less direct sunlight and would be less optimal. Low-lying areas near seasonal watercourses should be approached with caution due to potential flooding risks during intense rainfall events. While rare, these episodes can cause significant damage to infrastructure. The crystalline bedrock in many areas provides solid foundation conditions, though site-specific geotechnical assessment would be necessary to identify any localized concerns such as fracture zones or areas of excessive weathering. The semi-arid climate minimizes concerns about excessive vegetation growth that might shade panels, representing an advantage over more humid regions. However, dust accumulation during dry periods would require consideration in maintenance planning.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: Saturday 19th of July 2025
Last Updated: Monday 21st of July 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.




