Solar Energy Potential in Itagi, Bahia, Brazil

Itagi, Bahia, Brazil, located in the tropics at coordinates -14.1943, -40.0359, presents a promising location for solar photovoltaic (PV) energy generation. This region benefits from the tropical climate where sunlight remains relatively consistent throughout the year, with weather patterns typically divided between wet and dry seasons rather than the four distinct seasons experienced in temperate regions. The solar energy production potential in Itagi demonstrates strong year-round performance. During summer, solar panels can generate approximately 5.78 kWh per day for each kilowatt of installed capacity. Autumn shows even better performance with 6.13 kWh/day per installed kilowatt. Winter represents the least productive season, though still substantial, with 4.96 kWh/day. Spring emerges as the most productive season with an impressive 6.24 kWh/day per installed kilowatt. For maximizing solar energy capture in Itagi, Bahia, fixed solar panels should be installed at a tilt angle of 14 degrees facing North. This specific angle has been calculated to optimize year-round energy production based on the location's latitude and seasonal solar patterns.

Seasonal Considerations

Spring and autumn represent the peak production seasons in Itagi, Bahia, with spring slightly outperforming all other seasons. This pattern differs from what might be expected in non-tropical regions, where summer typically dominates production. The relatively strong performance across all seasons indicates that solar PV systems in Itagi can provide consistent energy throughout the year, without the dramatic seasonal fluctuations seen in locations farther from the equator. Winter, while showing the lowest output, still maintains nearly 80% of the production capacity of the best season. This relatively small seasonal variation is a significant advantage for solar energy systems in Itagi, Bahia, allowing for more predictable annual energy production and potentially reducing the need for seasonal energy storage solutions.

Potential Challenges and Mitigation

The tropical location of Itagi presents some challenges that should be considered when installing solar PV systems. High humidity and seasonal heavy rainfall could potentially impact solar production through increased cloud cover during the wet season. Additionally, tropical regions often experience intense heat, which can reduce the efficiency of solar panels, as most panels lose efficiency when operating at temperatures above 25°C. To mitigate these challenges, installations should incorporate adequate spacing between panels and the mounting surface to allow for airflow and cooling. Using panels with lower temperature coefficients (those that lose less efficiency as temperature rises) would be advantageous in this tropical climate. Dust accumulation from dry seasons followed by muddy residue during rainy periods can also reduce panel efficiency. Implementing a regular cleaning schedule and potentially installing automated cleaning systems would help maintain optimal performance. Additionally, elevating panels sufficiently off the ground can reduce exposure to dust and potential flooding during heavy tropical downpours. Despite these considerations, the consistent year-round solar radiation in Itagi makes it an excellent location for solar PV installations, with proper system design and maintenance practices addressing the tropical climate challenges effectively.

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 Itagi

Seasonal solar PV output for Latitude: -14.1943, Longitude: -40.0359 (Itagi, 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 14° North in Itagi, Brazil

To maximize your solar PV system's energy output in Itagi, Brazil (Lat/Long -14.1943, -40.0359) throughout the year, you should tilt your panels at an angle of 14° 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 Itagi, 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 Itagi, Brazil. As mentioned earlier, for fixed-panel solar PV installations, it is optimal to maintain a 14° North tilt angle throughout the year.

Overall Best Summer Angle	Overall Best Autumn Angle	Overall Best Winter Angle	Overall Best Spring Angle
1° South in Summer	20° North in Autumn	30° North in Winter	8° 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 Itagi, 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 Itagi, 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 Itagi, Brazil

The topography surrounding Itagi, Brazil, is characterized by a diverse landscape that reflects the broader geographical features of Bahia state in northeastern Brazil. Itagi is situated in a region with undulating terrain, featuring a mix of rolling hills and valleys. The elevation in this area typically ranges between 200 and 600 meters above sea level, creating a moderately varied topographical profile. The landscape around Itagi is part of the Brazilian Highlands, a vast plateau region that covers much of eastern Brazil. This area has been shaped over millions of years by erosion processes, resulting in the current pattern of gently rolling hills interspersed with occasional more pronounced elevations. The soil composition tends to be lateritic in nature, with reddish coloration due to the high iron oxide content typical of tropical regions.

Vegetation and Land Cover

The natural vegetation around Itagi transitions between different ecological zones. The region historically featured areas of Atlantic Forest, though much of this has been cleared for agriculture and other human activities. Today, the landscape includes patches of secondary forest growth, agricultural lands, and areas of caatinga—a distinctive type of dry forest and thorny scrubland native to northeastern Brazil that has adapted to the seasonal rainfall patterns. The caatinga elements become more pronounced as one moves further into the interior from Itagi, while more humid forest characteristics can be found in areas with better water access. This vegetation pattern follows the topographical variations, with denser vegetation often corresponding to valleys and water courses.

Hydrography

The hydrography of the Itagi region is influenced by its position in the broader watershed systems of Bahia. Small to medium-sized streams and rivers cut through the landscape, creating natural drainage patterns that follow the topographical contours. These waterways typically experience seasonal fluctuations in flow, corresponding to the wet and dry seasons characteristic of the region.

Potential for Solar PV Development

The topographical characteristics of the Itagi region offer several promising areas for large-scale solar photovoltaic (PV) development. The most suitable locations would be the gently sloping hillsides with southern, eastern, or western exposures that receive abundant direct sunlight throughout the year. These areas combine favorable orientation with minimal shadowing effects from surrounding terrain features. Particularly promising are the slightly elevated plateaus and broader hilltops that can be found within approximately 20-30 kilometers of Itagi. These locations offer relatively flat terrain that would minimize grading requirements during construction while maintaining good drainage characteristics to prevent water accumulation during rainy periods. The areas to the west and northwest of Itagi, where the terrain begins to flatten somewhat while maintaining sufficient elevation to avoid flooding concerns, present especially favorable conditions for solar PV installations. These locations offer the combination of stable ground conditions, minimal competing land uses (in some cases), and topographical features that would support efficient array layouts with minimal shadowing effects. Areas to avoid would include the steeper slopes found in some parts of the region, particularly those with northern exposures (in the Southern Hemisphere, north-facing slopes receive less direct sunlight), as well as low-lying areas near watercourses that might be subject to seasonal flooding or have higher humidity levels that could affect equipment longevity. The soil stability in the recommended areas is generally sufficient for the foundation requirements of solar mounting systems, though site-specific geotechnical assessment would be necessary during project planning phases to confirm suitability and determine optimal foundation designs.

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!

Citation Guide

Article Details for Citation

Tell Us About Your Work

We love seeing how our research helps others! If you've cited this article in your work, we'd be delighted to hear about it. Drop us a line via our Contact Us page or on X, to share where you've used our information - we may feature a link to your work on our site. This helps create a network of valuable resources for others in the solar energy community and helps us understand how our research is contributing to the field. Plus, we occasionally highlight exceptional works that reference our research on our social media channels.

Feeling generous?

Share this with your friends!

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.