Solar Energy Potential in Barro, Ceará, Brazil

Barro, Ceará, Brazil, located at latitude -7.1354 and longitude -38.7337, presents an excellent location for solar energy production throughout the year. Situated in the tropics, this location benefits from consistent sunlight patterns that make it highly suitable for photovoltaic (PV) solar installations. The seasonal solar energy production at this location shows remarkable consistency across most of the year, with a notable peak during spring. For each kilowatt of installed solar capacity, the site generates 6.28 kWh per day in summer, 6.13 kWh per day in autumn, and 6.03 kWh per day in winter. Spring stands out as the most productive season, yielding an impressive 7.43 kWh per day for each kilowatt installed.

Optimal Panel Configuration

For fixed solar panel installations in Barro, Ceará, the ideal tilt angle to maximize year-round energy production is 7 degrees facing North. This specific angle has been calculated to optimize solar collection throughout the year, accounting for the site's tropical location and the Earth's elliptical orbit.

Seasonal Variations and Production Patterns

Spring clearly emerges as the peak production period in Barro, Ceará, with energy generation approximately 20% higher than during winter months. While the difference between summer, autumn, and winter production is relatively minor (less than 5% variation), the consistent output across these seasons demonstrates the location's reliability for solar energy generation.

Environmental and Weather Considerations

Despite the excellent solar potential, Barro faces some environmental challenges that could affect solar production. Being in a tropical region, the area experiences a distinct wet season that can bring heavy rainfall and increased cloud cover, potentially reducing solar efficiency temporarily. Dust accumulation during the dry season can also gradually decrease panel performance if not addressed. To mitigate these challenges, solar installations in Barro should incorporate:

• Self-cleaning panel technologies or regular maintenance schedules to address dust buildup
• Slightly increased tilt angles in areas prone to dust accumulation to facilitate natural cleaning during rainfall
• Robust mounting systems designed to withstand potential heavy rainfall events
• High-quality inverters that perform efficiently even during periods of variable sunlight intensity

With proper installation techniques addressing these considerations, Barro remains an ideal location for solar PV deployment, offering consistent and substantial energy production throughout the year with minimal seasonal fluctuation.

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 Barro

Seasonal solar PV output for Latitude: -7.1354, Longitude: -38.7337 (Barro, 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 7° North in Barro, Brazil

To maximize your solar PV system's energy output in Barro, Brazil (Lat/Long -7.1354, -38.7337) throughout the year, you should tilt your panels at an angle of 7° 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 Barro, 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 Barro, Brazil. As mentioned earlier, for fixed-panel solar PV installations, it is optimal to maintain a 7° North tilt angle throughout the year.

Overall Best Summer Angle	Overall Best Autumn Angle	Overall Best Winter Angle	Overall Best Spring Angle
9° South in Summer	13° North in Autumn	23° North in Winter	1° 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 Barro, 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 Barro, 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 Barro, Brazil

The topography around Barro, Brazil, located in the northeastern state of Ceará, is characterized by a semi-arid landscape typical of Brazil's interior Northeast region. This area sits within what is known locally as the "Sertão," a backlands region marked by distinctive geographical features that have been shaped by centuries of geological processes and climate patterns. The terrain surrounding Barro consists predominantly of rolling hills and modest plateaus, with elevations generally ranging between 300 to 600 meters above sea level. The landscape features a mixture of gentle slopes and occasional more pronounced elevations, creating a moderately undulating topography rather than steep mountainous terrain. This area is part of the Brazilian Highland, which forms much of the country's interior plateau system.

Soil and Surface Characteristics

The soil composition around Barro is typically thin and rocky in many places, with areas of exposed crystalline bedrock common throughout the region. These soils are often reddish or yellowish in color, indicating their high mineral content but relatively low organic matter. The surface is frequently dotted with drought-resistant vegetation including cacti, thorny shrubs, and scattered drought-adapted trees that comprise the Caatinga biome - Brazil's unique dry forest ecosystem. During the dry season, which constitutes most of the year, the landscape takes on a distinctly arid appearance with sparse vegetation. However, during brief rainy periods, the same terrain can transform dramatically with temporary greening of the vegetation.

Hydrography

The hydrographic network around Barro is characterized by predominantly intermittent rivers and streams that contain water only during and shortly after the rainy season. The region falls within the upper basin of the Jaguaribe River, one of Ceará's most important waterways. Small reservoirs and artificial ponds (locally known as "açudes") dot the landscape, constructed to capture and store rainwater for dry periods.

Climate Context

The topographical features of the area exist within a semi-arid climate context, with extended dry periods and concentrated rainfall seasons. The relatively flat to gently rolling terrain, combined with minimal natural shade and vegetation cover, contributes to the region receiving substantial solar radiation throughout the year.

Areas Suitable for Solar PV Development

For large-scale solar photovoltaic installations, several areas around Barro present advantageous conditions: The gently sloping plateaus to the east and southeast of Barro offer ideal conditions for solar development. These areas combine favorable terrain with minimal shading concerns and good accessibility via existing road networks. The modest incline of these plateaus actually provides an advantage for solar panel placement, as slight north-facing slopes (in the Southern Hemisphere) can optimize panel orientation. The flatter terrain extending southwest from Barro toward neighboring municipalities presents another promising zone for solar development. These areas feature expanses of open land with minimal competing land uses and relatively stable soil conditions that would support the infrastructure required for large installations. Areas of degraded pastureland, which are common in the region due to historical agricultural practices, represent opportunities for land repurposing. These locations often have already been cleared of native vegetation and have existing access routes, minimizing the environmental impact of new solar developments. The higher elevation areas approximately 10-15 kilometers north of Barro also merit consideration. These locations benefit from slightly cooler temperatures compared to lower elevations, which can improve photovoltaic efficiency, as solar panels typically perform better in cooler conditions despite needing maximum sun exposure. It's worth noting that areas immediately adjacent to the intermittent waterways should generally be avoided due to potential flooding during intense rain events, despite their infrequency. Similarly, the steeper hillsides present in some parts of the region would require more extensive grading and preparation, increasing development costs and environmental impacts.

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

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