Solar Energy Potential at Itacoatiara, Amazonas, Brazil

Itacoatiara, Amazonas, Brazil, located at latitude -3.1407 and longitude -58.4495, presents a promising location for solar energy production throughout the year. This Amazon region site benefits from its tropical position, where sunlight remains fairly consistent across seasons that are primarily distinguished by wet and dry periods rather than temperature variations. The seasonal solar electricity generation potential shows a favorable pattern. During spring, panels can generate approximately 5.51 kWh per day for each kilowatt of installed capacity, making it the most productive season. Winter follows closely with 5.33 kWh/day, while autumn yields 4.83 kWh/day, and summer produces 4.54 kWh/day per installed kilowatt. For fixed solar panel installations at this location, the ideal tilt angle to maximize year-round energy production is 4 degrees facing North. This slight tilt helps optimize solar capture across seasonal sun path variations while accounting for the site's proximity to the equator.

Environmental and Weather Considerations

Several significant factors could impact solar production at this Amazonian location:

• Seasonal rainfall: The region experiences a pronounced wet season that can reduce solar efficiency through cloud cover and direct rainfall. Installing panels with excellent drainage systems and water-resistant components is essential.
• High humidity: The consistently humid climate can accelerate corrosion of mounting hardware and electrical connections. Using marine-grade stainless steel components and sealed junction boxes helps mitigate this issue.
• Vegetation growth: The rapid growth of vegetation in this tropical environment requires regular maintenance to prevent shading. Establishing a vegetation management plan and potentially raising panel height can reduce this concern.
• Dust and pollen accumulation: Organic matter can accumulate on panels, particularly during dry periods. Implementing automated cleaning systems or regular maintenance schedules can maintain optimal performance.

Despite these challenges, the consistent year-round solar radiation makes Itacoatiara an attractive location for solar PV installations. The relatively small seasonal variation in output (with less than 1 kWh/day difference between the highest and lowest producing seasons) suggests reliable energy production throughout the year, with slightly better performance during spring and winter months.

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 Itacoatiara

Seasonal solar PV output for Latitude: -3.1407, Longitude: -58.4495 (Itacoatiara, 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 4° North in Itacoatiara, Brazil

To maximize your solar PV system's energy output in Itacoatiara, Brazil (Lat/Long -3.1407, -58.4495) throughout the year, you should tilt your panels at an angle of 4° 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 Itacoatiara, 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 Itacoatiara, Brazil. As mentioned earlier, for fixed-panel solar PV installations, it is optimal to maintain a 4° North tilt angle throughout the year.

Overall Best Summer Angle	Overall Best Autumn Angle	Overall Best Winter Angle	Overall Best Spring Angle
13° South in Summer	10° North in Autumn	19° North in Winter	2° South 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 Itacoatiara, 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 Itacoatiara, 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 Itacoatiara, Brazil

The terrain surrounding Itacoatiara, Brazil, located in the Amazonas state, is predominantly characterized by lowland Amazon rainforest topography. Situated on the northern bank of the Amazon River (locally known as the Solimões River), Itacoatiara lies in a region where the landscape is largely defined by the river's influence.

Riverine Landscape

Itacoatiara's immediate surroundings feature relatively flat alluvial plains that have been formed by the Amazon River's dynamic processes over millennia. The elevation is generally low, typically ranging between 30 to 60 meters above sea level across most of the area. The riverbanks experience seasonal flooding, creating várzea (floodplain) ecosystems that transition into terra firme (upland forest) as one moves away from the river. The Amazon River itself is a dominant topographical feature, with its width spanning several kilometers in this section. The river's course includes numerous islands, channels, and sandbars that shift over time due to the constant deposition and erosion of sediments.

Forest and Vegetation Cover

Beyond the immediate riverbanks, the landscape is covered in dense tropical rainforest vegetation, which creates an undulating canopy surface when viewed from above. While the terrain may appear uniformly flat on maps, there are subtle variations in elevation that create a gently rolling landscape in many areas. Small tributaries and streams (igarapés) crisscross the region, creating natural drainage systems that flow toward the main river. These waterways often create slight valleys and depressions in the otherwise gentle topography.

Potential Areas for Solar PV Development

For large-scale solar photovoltaic development, several factors related to topography must be considered. The most suitable areas near Itacoatiara would be:

Cleared Agricultural Lands

Areas that have already been cleared for agriculture or pasture, particularly those on slightly elevated terrain south of the city, offer potential for solar development. These lands typically have reduced flood risk and minimal shading from forest vegetation. Some agricultural clearings exist along the highways that connect Itacoatiara to other regional centers.

Elevated Terra Firme Areas

The non-flooding upland areas (terra firme) that lie beyond the várzea floodplains provide more stable ground for infrastructure development. These areas, found primarily to the north and northeast of Itacoatiara, feature slightly higher elevations that remain dry year-round, making them more suitable for permanent installations.

Areas Along Transportation Routes

The terrain along the AM-010 highway, which connects Itacoatiara to Manaus, includes some higher ground with existing clearings that could accommodate solar installations while benefiting from proximity to existing infrastructure. These corridor areas often feature a mix of agricultural land and secondary forest growth on gently sloping terrain.

Topographical Challenges

Despite these potential areas, several topographical challenges exist for solar development in the region. The seasonal flooding patterns of the Amazon River affect large portions of the surrounding lowlands, making many areas unsuitable without significant engineering interventions. Additionally, the high forest cover creates potential shading issues and would require clearing, which raises environmental concerns in this ecologically sensitive region. The soil composition in much of the area consists of nutrient-poor oxisols and ultisols that, while stable in some locations, can present drainage challenges during the intense rainfall periods typical of the Amazon basin. Areas with lateritic soils (rich in iron oxides) on higher ground tend to provide better structural support for large installations. In conclusion, while the generally flat topography around Itacoatiara might seem ideal for solar development at first glance, the combination of seasonal flooding, dense forest cover, and specific soil conditions means that careful site selection focusing on elevated, already-cleared areas would be essential for successful large-scale solar PV implementation.

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

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