Solar Energy Potential in Alagoinhas, Bahia, Brazil

Alagoinhas, Bahia, Brazil, located at latitude -12.0049 and longitude -38.3587, offers a promising location for solar photovoltaic (PV) energy generation throughout the year. This tropical location benefits from relatively consistent sunlight patterns compared to regions at higher latitudes. The seasonal solar energy production shows some variation but remains strong year-round. During summer, solar panels at this location can generate approximately 6.19 kWh per day for each kilowatt of installed capacity. This drops slightly to 5.59 kWh/day during autumn. Winter sees the lowest production at 4.53 kWh/day, while spring rebounds to 5.98 kWh/day per kilowatt installed. For fixed solar panel installations in Alagoinhas, Bahia, the ideal tilt angle to maximize year-round energy production is 11 degrees facing North. This carefully calculated angle optimizes solar capture across seasonal variations, accounting for the location's position in the Southern Hemisphere.

Seasonal Considerations

The most productive season for solar generation in Alagoinhas is summer, when panels can capture over 6 kWh per day for each kilowatt installed. While winter shows reduced output, it still maintains reasonable production at 4.53 kWh/day, which is higher than winter production in many non-tropical regions. The relatively small variation between seasons (approximately 27% difference between summer and winter) demonstrates the advantage of Alagoinhas' tropical location, where seasonal differences in solar potential are less pronounced than in temperate regions.

Environmental and Weather Factors

Several factors could potentially impact solar production in Alagoinhas:

• Heavy rainfall during wet seasons may reduce solar efficiency due to cloud cover and direct precipitation on panels
• High humidity levels common in tropical regions can cause slight reductions in panel efficiency
• Dust accumulation, particularly during dry seasons, can gradually diminish panel performance

To mitigate these challenges, several preventative measures can be implemented during solar installation. Regular cleaning schedules should be established, particularly before and after dry seasons when dust accumulation is highest. Installing panels at the optimal 11-degree tilt not only maximizes production but also facilitates natural cleaning during rainfall. Self-cleaning coatings on panels can reduce maintenance needs, while quality inverters with high humidity tolerance will ensure system longevity. Additionally, slightly oversizing the system can compensate for efficiency losses during particularly cloudy or rainy periods. Overall, Alagoinhas presents a favorable location for solar PV installations, with strong year-round production potential despite some seasonal variations and environmental considerations.

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 Alagoinhas

Seasonal solar PV output for Latitude: -12.0049, Longitude: -38.3587 (Alagoinhas, 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 11° North in Alagoinhas, Brazil

To maximize your solar PV system's energy output in Alagoinhas, Brazil (Lat/Long -12.0049, -38.3587) throughout the year, you should tilt your panels at an angle of 11° 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 Alagoinhas, 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 Alagoinhas, Brazil. As mentioned earlier, for fixed-panel solar PV installations, it is optimal to maintain a 11° North tilt angle throughout the year.

Overall Best Summer Angle	Overall Best Autumn Angle	Overall Best Winter Angle	Overall Best Spring Angle
4° South in Summer	18° North in Autumn	28° North in Winter	6° 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 Alagoinhas, 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 Alagoinhas, 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 Alagoinhas, Brazil

The area surrounding Alagoinhas, Brazil, presents a varied topography characteristic of the northeastern Brazilian landscape. Located in the state of Bahia, approximately 120 kilometers north of Salvador, Alagoinhas sits in a transitional zone between the coastal plains and the more elevated interior highlands. The terrain around Alagoinhas features gently rolling hills with moderate elevation changes, typically ranging from 150 to 250 meters above sea level. The landscape is punctuated by shallow valleys and occasional plateaus, creating a somewhat undulating profile. This topographical variation is partly due to the region's geological history, with sedimentary formations predominating.

Hydrological Features

The name "Alagoinhas" itself translates roughly to "little lagoons," hinting at the water features historically present in the region. Several small rivers and streams traverse the area, including tributaries of the Paraguaçu River basin. These waterways have carved subtle depressions in the landscape over time, contributing to the gentle rolling character of the terrain.

Vegetation and Land Cover

The natural vegetation around Alagoinhas consists primarily of transitional ecosystems between the Atlantic Forest and the drier caatinga biome. Much of the original forest cover has been altered by human activity, with significant areas converted to agricultural use, urban development, and scattered secondary growth. The remaining natural vegetation tends to be more dense in the lower-lying areas along watercourses.

Potential for Solar PV Development

For large-scale solar photovoltaic development, the most suitable areas near Alagoinhas would be the gently sloping highlands and plateaus found primarily to the west and northwest of the city. These areas offer several advantages: The elevated plateaus to the west of Alagoinhas, extending toward the municipalities of Aramari and Ouriçangas, provide relatively flat terrain with good exposure to sunlight throughout the day. The moderate elevation helps minimize morning fog issues that can sometimes affect lower-lying areas. The northwestern corridor toward Inhambupe offers expansive areas of consistent, gently sloping terrain that would require minimal grading for solar installation. This region also tends to have less intensive agricultural use than other surrounding areas, potentially simplifying land acquisition. The southern reaches toward Terra Nova, while somewhat more fragmented by small valleys, contain numerous suitable plateau sections that could accommodate substantial solar arrays. These areas benefit from good drainage characteristics, reducing flood risk during the rainy season. Areas to potentially avoid include the more dissected terrain to the immediate east, where the landscape begins to transition toward the coastal plains. These sections typically have more pronounced slopes and greater vegetation density, which would increase site preparation costs. The northeastern corridor toward Aramari contains some promising sites, though careful evaluation would be needed to avoid areas with seasonal flooding concerns, particularly near the various small tributaries and drainage channels that cross this region. Overall, the topography around Alagoinhas presents numerous viable options for large-scale solar PV development, with the western and northwestern sectors offering the most favorable combination of terrain characteristics, accessibility, and environmental conditions.

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.