Solar Energy Potential in Bom Jesus, Piauí, Brazil

Bom Jesus, Piauí, Brazil, located in the tropical region at coordinates -9.1626, -44.6018, offers excellent conditions for solar energy generation throughout the year. This location benefits from the typical tropical characteristic of consistent sunlight, with seasons defined more by rainfall patterns than temperature variations. The solar energy production potential at this location shows impressive consistency across all seasons. Winter actually presents the highest daily electricity generation at 6.60kWh per kilowatt of installed capacity, closely followed by Spring with 6.56kWh/day. Summer yields 5.78kWh/day, while Autumn produces 6.00kWh/day. This pattern indicates that Bom Jesus experiences optimal solar conditions during the traditionally drier winter months when skies are typically clearer.

Optimal Panel Installation

For maximizing year-round solar energy production in Bom Jesus, Piauí, fixed solar panels should be installed at a 10-degree tilt facing North. This specific angle has been calculated to capture the most sunlight throughout the year, accounting for the location's proximity to the equator and the Earth's elliptical orbit. The relatively small tilt angle reflects Bom Jesus's tropical location, where the sun passes nearly overhead throughout much of the year. This makes the location particularly favorable for solar energy generation compared to locations further from the equator that require steeper panel angles.

Environmental Considerations

Despite the favorable conditions, several environmental factors could potentially affect solar production in Bom Jesus:

• Seasonal rainfall: The region experiences a distinct wet season that can reduce solar efficiency through cloud cover and rain. Installing panels at the recommended angle helps shed water quickly and minimize production losses.
• Dust accumulation: The region's dry seasons can lead to dust buildup on panels. Implementing regular cleaning schedules and possibly automated cleaning systems can maintain optimal efficiency.
• High temperatures: Tropical heat can reduce photovoltaic efficiency. Using panels with good temperature coefficients and ensuring adequate airflow beneath the installation can mitigate this effect.

To maximize energy production in Bom Jesus, Piauí, installations should include elevated mounting systems that promote airflow, regular maintenance schedules aligned with seasonal patterns, and possibly tracking systems for larger installations to capture even more of the abundant solar resource available at this promising location.

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 Bom Jesus

Seasonal solar PV output for Latitude: -9.1626, Longitude: -44.6018 (Bom Jesus, 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 10° North in Bom Jesus, Brazil

To maximize your solar PV system's energy output in Bom Jesus, Brazil (Lat/Long -9.1626, -44.6018) throughout the year, you should tilt your panels at an angle of 10° 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 Bom Jesus, 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 Bom Jesus, Brazil. As mentioned earlier, for fixed-panel solar PV installations, it is optimal to maintain a 10° North tilt angle throughout the year.

Overall Best Summer Angle	Overall Best Autumn Angle	Overall Best Winter Angle	Overall Best Spring Angle
7° South in Summer	16° North in Autumn	25° North in Winter	4° 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 Bom Jesus, 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 Bom Jesus, 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 Bom Jesus, Brazil

The topography around Bom Jesus, Brazil is characterized by a diverse landscape that transitions between the Brazilian Highlands and the semi-arid interior. Located in the state of Piauí in northeastern Brazil, this region sits at the edge of what is known as the Chapada das Mangabeiras, a plateau formation that creates significant topographical variation. The terrain features gently rolling hills interspersed with more pronounced elevations, particularly to the west and south of Bom Jesus. The elevation generally ranges from approximately 300 to 600 meters above sea level, creating a landscape of undulating plains punctuated by occasional higher ridges and plateaus. These elevated areas often present as flat-topped formations with steeper escarpments along their edges.

Hydrological Features

The area is part of the Parnaíba River basin, with several smaller rivers and seasonal streams cutting through the landscape. These waterways have, over time, carved shallow valleys that add texture to the otherwise rolling terrain. During the dry season, many of these smaller waterways diminish significantly or dry up completely, highlighting the region's seasonal precipitation patterns. The southeastern portion of the region transitions toward the more arid Caatinga biome, while areas to the west and north share characteristics with the Cerrado savanna. This ecological transition zone influences both the vegetation and the exposed soil types, which in turn affects the visual and physical characteristics of the topography.

Soil and Surface Characteristics

The soils around Bom Jesus tend to be lateritic in nature - reddish, iron-rich soils that are typical of tropical regions with distinct wet and dry seasons. In higher elevation areas, the soil is often thinner with occasional rock outcroppings, while lower-lying regions may have deeper soil accumulations.

Optimal Areas for Solar PV Development

For large-scale solar photovoltaic development, the most suitable areas near Bom Jesus would be the elevated plateau regions to the west and southwest. These areas offer several advantages: The higher elevation plateaus provide relatively flat terrain that requires minimal grading for installation of solar arrays. These plateau areas typically have fewer trees and less dense vegetation than lower-lying regions, reducing clearance requirements and environmental impact. The elevated positions experience less localized fog or mist that might occur in river valleys during early morning periods. Additionally, these areas are less prone to seasonal flooding that can affect lower elevation sites near waterways. Specifically, the areas extending approximately 15-30 kilometers southwest of Bom Jesus offer an optimal balance of favorable topography, accessibility, and solar exposure conditions. These plateau regions maintain relatively consistent elevation profiles with gradual slopes that are ideal for solar array placement. The northeastern areas, while still suitable, present more varied terrain that would require additional site preparation. Areas directly east tend to have more pronounced depressions associated with drainage patterns, potentially increasing development costs. The southwestern plateau region also benefits from existing road infrastructure that connects to Bom Jesus, facilitating both construction access and ongoing maintenance requirements for large-scale solar installations. These elevated areas also typically experience less dust accumulation from agricultural activities that are more common in the lower-lying regions to the east.

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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