Solar Energy Production in Aracaju, Sergipe, Brazil

Aracaju, Sergipe, Brazil, located at latitude -10.9823 and longitude -37.1033, offers generally favorable conditions for solar photovoltaic (PV) energy generation throughout the year. This tropical location benefits from relatively consistent sunlight patterns compared to regions at higher latitudes, though with some seasonal variations. The seasonal electricity output from solar PV in Aracaju shows interesting patterns. Spring yields the highest production at 6.68 kWh per day for each kilowatt of installed capacity. Summer follows closely with 6.25 kWh/day, while autumn sees a moderate decrease to 5.50 kWh/day. Winter represents the lowest production period with 4.81 kWh/day per installed kilowatt. For those considering fixed solar panel installations in Aracaju, Sergipe, the optimal tilt angle to maximize year-round energy production is 10 degrees facing North. This specific angle has been calculated based on the location's position relative to the sun's path throughout the year, accounting for Earth's elliptical orbit and seasonal variations in solar elevation.

Environmental and Weather Considerations

Several environmental factors in Aracaju may affect solar production efficiency:

• High humidity levels, particularly during the rainy season, can reduce panel efficiency due to increased cloud cover and atmospheric moisture.
• Coastal salt spray from the nearby Atlantic Ocean may accelerate corrosion of mounting hardware and electrical connections if not properly protected.
• Seasonal dust accumulation, especially during drier periods, can gradually reduce panel efficiency if not addressed.

To mitigate these challenges, solar installations in Aracaju should incorporate marine-grade components with enhanced corrosion resistance. Regular cleaning schedules are advisable, particularly toward the end of dry periods when dust accumulation peaks. Additionally, installing panels with slightly steeper angles than the optimal 10 degrees may help with natural cleaning during rainfall events, though this represents a trade-off with maximum energy capture. The region's occasional tropical storms may also pose risks to solar installations, making robust mounting systems essential. High-quality surge protection devices should be incorporated to safeguard against lightning strikes, which are more common during the region's wet season.

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 Aracaju

Seasonal solar PV output for Latitude: -10.9823, Longitude: -37.1033 (Aracaju, 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 10° North in Aracaju, Brazil

To maximize your solar PV system's energy output in Aracaju, Brazil (Lat/Long -10.9823, -37.1033) throughout the year, you should tilt your panels at an angle of 10° 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 Aracaju, 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 Aracaju, Brazil. As mentioned earlier, for fixed-panel solar PV installations, it is optimal to maintain a 10° 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	5° 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 Aracaju, 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 Aracaju, 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 Aracaju, Brazil

The topography surrounding Aracaju, Brazil presents a diverse landscape characterized by coastal plains, gentle hills, river valleys, and estuarine systems. Aracaju itself sits at the mouth of the Sergipe River where it meets the Atlantic Ocean, creating a predominantly flat coastal terrain with minimal elevation changes near the city center. Moving slightly inland from Aracaju, the landscape gradually transitions to rolling hills with modest elevation gains. These undulations become more pronounced as one travels westward away from the coast. The region features the Atlantic coastal plain which extends several kilometers inland before giving way to more varied topography. This coastal zone includes beaches, sand dunes, and mangrove ecosystems, particularly along the river mouths.

Hydrological Features

The area is notably influenced by several river systems. The Sergipe and Vaza-Barris rivers are prominent waterways that have shaped the local terrain through erosion and sediment deposition over millennia. These rivers create valleys that cut through the otherwise gentle landscape, forming natural boundaries and ecological corridors. The estuaries where these rivers meet the ocean create dynamic wetland environments that are continuously reshaped by tidal influences.

Vegetation and Land Cover

The native vegetation around Aracaju has been significantly modified by human settlement and agriculture. Originally covered by Atlantic Forest ecosystems, much of the area has been converted to urban development, pasture, and agricultural land. Remnants of natural vegetation include coastal restinga (sandy coastal forest), mangroves along the estuaries, and patches of tropical forest in less developed areas.

Solar PV Suitability

For large-scale solar photovoltaic development, several areas near Aracaju show promising characteristics. The inland regions west and northwest of the city, where the terrain begins to rise into gently rolling hills, offer particularly suitable conditions. These areas typically feature: Clear land with minimal shading from mountains or tall vegetation, providing maximum exposure to the sun throughout the day. The modest slopes found in these areas can actually be advantageous for solar installations, as they can be oriented to optimize solar radiation capture while minimizing the land area required. The municipalities of Nossa Senhora do Socorro, São Cristóvão, and Itaporanga d'Ajuda, all within 30km of Aracaju, contain expanses of converted agricultural land that could be repurposed for solar development. These areas benefit from existing road infrastructure, relatively flat to gently rolling terrain, and proximity to transmission infrastructure. Areas to avoid would include the immediate coastal zone with its environmentally sensitive mangroves and wetlands, flood-prone river valleys, and any remaining protected forest areas. Additionally, the northeastern coastal areas experience more frequent cloud cover from oceanic influences, potentially reducing solar efficiency compared to inland sites. The semi-arid regions further inland, though outside Aracaju's immediate vicinity, present even more favorable conditions for solar PV with their lower humidity, reduced cloud cover, and abundant open space. These areas, beginning approximately 50-70km from the coast, feature a more pronounced dry season and greater solar intensity, making them particularly attractive for utility-scale solar development despite being further from major population centers.

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.