Aurora, Ceará, Brazil is an excellent location for year-round solar energy generation, situated in the tropical region where consistent sunlight makes it highly suitable for solar PV installations.

Solar Energy Production Throughout the Year

The solar energy output at Aurora remains remarkably consistent across all seasons, with only modest seasonal variation. The location produces strong energy yields in every season:

• Spring delivers the highest output at 7.43 kWh per day per kW of installed solar capacity
• Summer maintains excellent production at 6.28 kWh per day per kW
• Autumn continues strong performance with 6.13 kWh per day per kW
• Winter shows the lowest but still substantial output at 6.03 kWh per day per kW

This consistent performance throughout the year makes Aurora an ideal location for solar installations, as property owners can rely on steady energy production regardless of the season. The relatively small difference between the highest and lowest producing seasons (just 1.4 kWh difference) demonstrates the reliability of solar energy at this tropical location.

Optimal Panel Installation

For maximum year-round energy production at Aurora, Ceará, solar panels should be installed at a fixed tilt angle of 7 degrees facing North. This optimal angle is calculated based on the location's specific latitude and accounts for seasonal sun path variations throughout the year.

Environmental and Weather Considerations

Being located in the tropics, Aurora experiences distinct wet and dry seasons rather than traditional temperature-based seasons. The wet season presents the most significant challenge to solar energy production, as frequent cloud cover and heavy rainfall can temporarily reduce solar panel efficiency. During periods of intense rainfall, water and debris accumulation on solar panels can block sunlight and reduce energy output. The high humidity typical of tropical climates can also contribute to faster degradation of electrical components if not properly protected.

Preventative Measures for Optimal Performance

Several installation strategies can help maximize solar energy production at Aurora despite tropical weather challenges. Installing panels with adequate tilt (the recommended 7 degrees) helps rainwater naturally wash away dust and debris, providing a self-cleaning effect during the wet season. Proper drainage systems around solar installations prevent water pooling that could damage electrical components. Using marine-grade wiring and weatherproof enclosures protects against the high humidity and occasional heavy rains typical of tropical climates. Regular maintenance scheduling becomes particularly important during and after the wet season to ensure panels remain clean and free of any vegetation growth that might cause shading. Installing panels with sufficient spacing allows for proper air circulation, helping to prevent moisture buildup and maintain optimal operating temperatures.

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 Aurora

Seasonal solar PV output for Latitude: -7.0008, Longitude: -38.9704 (Aurora, 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 Aurora, Brazil

To maximize your solar PV system's energy output in Aurora, Brazil (Lat/Long -7.0008, -38.9704) 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 Aurora, 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 Aurora, 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
9° South in Summer	13° North in Autumn	23° North in Winter	1° 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 Aurora, 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 Aurora, 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 Aurora, Brazil

Topographical Features of Aurora, Brazil

Aurora is situated in the interior of Ceará state in northeastern Brazil, positioned within the Caatinga biome that characterizes much of the region's semi-arid landscape. The terrain around Aurora consists primarily of gently rolling hills and plateaus typical of the Brazilian Northeast's crystalline basement complex. Elevations in the immediate vicinity range from approximately 200 to 400 meters above sea level, creating a moderately undulating topography without extreme variations in relief.

The landscape is dominated by scattered low hills and broad valleys, with occasional inselbergs - isolated rocky outcrops that rise abruptly from the surrounding plains. These geological formations are remnants of ancient crystalline rocks that have been weathered over millions of years. The soil composition consists largely of shallow, rocky soils with patches of deeper alluvial deposits in valley bottoms where seasonal water flow has deposited sediments.

Drainage patterns in the region are characterized by intermittent streams and seasonal watercourses that flow only during the rainy season. The area lacks permanent rivers of significant size, with most waterways being temporary channels that remain dry for much of the year. This creates a network of shallow valleys and depressions across the landscape that could influence the placement of large infrastructure projects.

Optimal Areas for Large-Scale Solar Development

The most suitable locations for extensive solar photovoltaic installations around Aurora would be the broad, relatively flat plateau areas that extend to the north and east of the municipality. These elevated plains offer several advantages including consistent terrain gradients, minimal shading from topographical features, and reduced risk of seasonal flooding that can affect lower-lying areas.

The gently sloping hillsides with southern exposure present excellent opportunities for solar development, as they naturally orient panels toward optimal sun angles while providing good drainage during the rainy season. These slopes typically have gradients between 2-8 degrees, which is ideal for solar panel installation as it allows for natural cleaning by rainfall while maintaining structural stability.

Areas to avoid for large-scale solar development include the narrow valleys between hills where seasonal water accumulation occurs, and the steeper rocky outcrops where construction would be challenging and expensive. The scattered inselbergs throughout the region, while unsuitable for development themselves, can actually provide beneficial wind patterns that help cool solar panels and improve their efficiency.

The eastern and southeastern areas surrounding Aurora offer particularly promising terrain, with extensive flat to gently rolling surfaces that would accommodate large solar arrays with minimal grading requirements. These locations benefit from stable geological conditions and are generally above the seasonal flood zones that can affect lower elevations during periods of heavy rainfall.

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.