Solar Energy Potential in Itamari, Bahia, Brazil

Itamari, Bahia, Brazil, located at latitude -13.7859 and longitude -39.6842, offers excellent conditions for solar energy production throughout the year. This tropical location benefits from consistent sunlight patterns, making it a promising site for solar photovoltaic (PV) installations. The seasonal energy production data shows impressive output levels across all seasons. During spring, solar panels can generate approximately 5.92 kWh per day for each kilowatt installed, which represents the highest seasonal output. Autumn follows closely with 5.90 kWh/day, while summer yields 5.76 kWh/day. Even during winter, which shows the lowest production, panels still generate a substantial 4.73 kWh/day per installed kilowatt.

Optimal Panel Installation

For fixed solar panel installations in Itamari, Bahia, the ideal tilt angle to maximize year-round energy production is 13 degrees facing North. This specific angle has been calculated to optimize solar capture throughout the year, accounting for the Earth's elliptical orbit and the site's tropical location. The relatively consistent production across seasons is characteristic of tropical locations like Itamari, Bahia, where the distinction between seasons is often more about rainfall patterns (wet and dry seasons) than significant variations in sunlight availability.

Environmental and Weather Considerations

Despite the favorable conditions, several factors could potentially impact solar production in Itamari:

• Heavy rainfall during the wet season may reduce solar efficiency due to cloud cover and potential panel soiling.
• High humidity levels typical of tropical regions can cause condensation on panels, potentially reducing their efficiency.
• Potential for tropical storms or extreme weather events that could physically damage installations.

Preventative Measures

To maximize energy production and protect your investment, consider these preventative measures:

• Install panels with self-cleaning technologies or implement regular cleaning schedules, especially during the dry season when dust accumulation is higher.
• Use corrosion-resistant mounting hardware and panels designed for humid tropical environments.
• Consider slightly increasing the tilt angle in areas prone to heavy rainfall to facilitate natural cleaning by rainwater runoff.
• Install robust mounting systems designed to withstand tropical storm conditions.
• Implement lightning protection systems, as tropical regions often experience frequent thunderstorms.

With proper installation and maintenance, Itamari's consistent solar resources can provide reliable renewable energy throughout the year, with only modest seasonal variations in output.

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 Itamari

Seasonal solar PV output for Latitude: -13.7859, Longitude: -39.6842 (Itamari, 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 13° North in Itamari, Brazil

To maximize your solar PV system's energy output in Itamari, Brazil (Lat/Long -13.7859, -39.6842) throughout the year, you should tilt your panels at an angle of 13° 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 Itamari, 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 Itamari, Brazil. As mentioned earlier, for fixed-panel solar PV installations, it is optimal to maintain a 13° North tilt angle throughout the year.

Overall Best Summer Angle	Overall Best Autumn Angle	Overall Best Winter Angle	Overall Best Spring Angle
2° South in Summer	19° North in Autumn	29° 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 Itamari, 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 Itamari, 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 Itamari, Brazil

The topography around Itamari, Brazil presents a diverse landscape characteristic of the coastal region of southern Bahia state. Located approximately 300 kilometers south of Salvador, Itamari sits in a transitional zone between the coastal plains to the east and more elevated terrain to the west. The immediate surroundings of Itamari feature gently rolling hills with moderate elevation changes, typically ranging from 100 to 300 meters above sea level. The terrain becomes increasingly undulating as one moves westward, with occasional steeper slopes and small valleys carved by seasonal watercourses. These hills are part of the eastern Brazilian highlands that gradually rise from the Atlantic coastal plain.

Hydrography and Vegetation

The area is crossed by several small rivers and streams that flow generally eastward toward the Atlantic Ocean. The Rio de Contas watershed influences the region, with numerous tributaries creating natural divisions in the landscape. These waterways have shaped the topography over time, carving valleys and creating natural drainage patterns. Vegetation in the region transitions between Atlantic Forest remnants and more open areas that have been modified for agricultural use. The natural forest cover has been significantly reduced over centuries of human occupation, with current vegetation consisting of secondary growth forests, agricultural lands, and pastures.

Suitability for Solar PV Development

For large-scale solar photovoltaic development, several nearby areas present favorable conditions based on topographical considerations: The gently sloping areas to the northeast of Itamari, extending toward Ibirataia, offer some of the most suitable terrain for solar installations. These areas feature relatively flat expanses with southern exposure, minimal shadowing effects from surrounding hills, and good accessibility via existing road networks. Similarly, the cleared agricultural lands to the southwest, in the direction of Gongogi, present opportunities for solar development. These areas have already undergone land conversion, reducing potential environmental impacts, and feature favorable topography with minimal flooding risk. The slightly elevated plateaus found approximately 10-15 kilometers to the west of Itamari also merit consideration. These areas benefit from reduced morning fog compared to lower-lying areas and offer expansive, relatively flat terrain that would minimize grading requirements for installation.

Topographical Challenges

Despite these opportunities, certain topographical features present challenges for solar development. The more steeply sloped areas to the northwest would require significant grading, increasing construction costs and environmental impacts. Additionally, the low-lying areas near rivers and streams experience periodic flooding during the rainy season, making them less suitable for permanent infrastructure. The region's soil composition varies, with some areas featuring more stable, compacted soils ideal for supporting mounting structures, while others have looser, more erosion-prone soils that would require additional site preparation and drainage considerations. Accessibility represents another topographical consideration, as some potentially suitable areas may be located away from existing transportation infrastructure, requiring additional development costs to create access roads capable of supporting construction equipment and ongoing maintenance activities.

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.