Carira, Sergipe, Brazil presents an excellent location for year-round solar energy generation through photovoltaic panels. Located in the tropical region of northeastern Brazil, this area benefits from consistent sunlight throughout most of the year, with seasonal variations typically defined by wet and dry periods rather than dramatic temperature changes.

Solar Energy Production Potential

The solar energy output data for Carira demonstrates strong performance across all seasons. Spring emerges as the most productive period, generating 6.68 kWh per day per kW of installed solar capacity. Summer follows closely with 6.25 kWh per day per kW, while autumn produces 5.50 kWh per day per kW. Even during the least productive season of winter, the location still generates a respectable 4.81 kWh per day per kW of installed capacity. For optimal year-round energy production, solar panels should be installed at a fixed tilt angle of 9 degrees facing north. This angle has been calculated to maximize total annual solar output by accounting for the sun's path throughout the year and the Earth's elliptical orbit around the sun.

Environmental and Weather Challenges

Several local factors could potentially impact solar energy production in Carira and require careful consideration during installation planning. The tropical climate brings distinct wet and dry seasons, with the rainy period potentially reducing solar output due to increased cloud cover and atmospheric moisture. Heavy rainfall can also lead to dust and debris accumulation on panel surfaces, which significantly reduces efficiency. Additionally, the region may experience occasional tropical storms or severe weather events that could damage solar installations. High humidity levels common in tropical areas can accelerate corrosion of metal components and electrical connections. The intense solar radiation that makes this location ideal for energy generation can also cause faster degradation of panel materials and mounting systems over time.

Preventative Installation Measures

Several strategies can help maximize solar energy production and system longevity in Carira's tropical environment:

• Install panels with adequate spacing and ventilation to prevent overheating and allow air circulation
• Use corrosion-resistant materials and protective coatings on all metal components
• Design mounting systems to withstand high winds and potential storm conditions
• Implement proper drainage systems to prevent water accumulation around installations
• Plan for regular cleaning schedules to remove dust, pollen, and debris from panel surfaces

Regular maintenance becomes particularly important in this environment. Establishing a routine cleaning program, especially during and after the rainy season, will help maintain optimal energy production. Choosing high-quality panels and components designed for tropical conditions will also ensure better long-term performance and return on investment. Despite these considerations, Carira's consistently strong solar output throughout the year makes it an highly suitable location for solar energy generation, with proper planning and maintenance ensuring excellent results.

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 Carira

Seasonal solar PV output for Latitude: -10.3655, Longitude: -37.7499 (Carira, 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 9° North in Carira, Brazil

To maximize your solar PV system's energy output in Carira, Brazil (Lat/Long -10.3655, -37.7499) throughout the year, you should tilt your panels at an angle of 9° 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 Carira, 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 Carira, Brazil. As mentioned earlier, for fixed-panel solar PV installations, it is optimal to maintain a 9° North tilt angle throughout the year.

Overall Best Summer Angle	Overall Best Autumn Angle	Overall Best Winter Angle	Overall Best Spring Angle
5° South in Summer	16° North in Autumn	26° North in Winter	4° 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 Carira, 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 Carira, 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 Carira, Brazil

Topographical Features of the Carira Region

The landscape around Carira in Sergipe state, Brazil, is characterized by gently rolling terrain typical of the northeastern Brazilian interior. This semi-arid region sits within the Caatinga biome, where the topography consists primarily of low hills and broad valleys carved by seasonal waterways. The elevation varies modestly across the area, creating a series of undulating plains that stretch toward the horizon. The terrain around Carira features relatively stable geological formations with gradual slopes that rarely exceed steep gradients. Much of the landscape consists of weathered crystalline rock formations covered by thin soils, creating natural platforms and gentle ridges. These formations provide excellent foundation conditions for large infrastructure projects while maintaining accessibility for construction and maintenance activities. Seasonal streams and dry creek beds, known locally as riachos, cut through the landscape in predictable patterns. During the dry season, these waterways become corridors of slightly lower elevation, while the surrounding higher ground remains well-drained and stable. The overall drainage pattern creates natural boundaries between different elevation zones without presenting significant obstacles to development.

Optimal Areas for Large-Scale Solar Development

The elevated plateaus and gentle ridges surrounding Carira present the most favorable conditions for extensive solar photovoltaic installations. These higher elevation areas benefit from consistent air circulation that helps maintain optimal operating temperatures for solar panels while providing natural drainage during the brief rainy season. The stable geological foundation in these zones minimizes ground preparation requirements and reduces long-term maintenance concerns. The broad valley floors between the low hills offer extensive flat areas that can accommodate large arrays with minimal grading or site preparation. These locations provide excellent access for construction equipment and ongoing operations while maintaining sufficient distance from seasonal water flow patterns. The natural spacing between elevated areas also allows for proper array spacing to minimize shading effects. Areas to the north and east of Carira show particularly promising characteristics, where the terrain opens into wider plains with consistent elevation patterns. These zones combine the stability of the crystalline basement rock with gentle topography that extends for considerable distances without significant obstacles. The natural wind patterns in these areas provide additional cooling benefits while the geological stability ensures long-term structural integrity. The western approaches to Carira feature similar advantages, with broad terraces that step gradually toward the interior. These natural platforms offer pre-formed development sites that require minimal earthwork while providing excellent drainage characteristics. The consistent elevation changes create natural boundaries for different project phases while maintaining overall site connectivity.

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.