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Graph of hourly avg kWh electricity output per kW of Solar PV installed in Juazeiro Do Norte, Brazil (by season)

Solar Energy Potential in Juazeiro do Norte, Brazil

Juazeiro do Norte, Brazil offers excellent conditions for solar energy production throughout the year, with consistent and high electricity generation potential across all seasons. Located in the tropics, this location benefits from relatively stable sunlight patterns, with seasonal variations defined more by rainfall than temperature or daylight hours. The energy production data shows impressive solar performance, with daily electricity output per kilowatt of installed capacity reaching 5.83kWh in summer, 5.87kWh in autumn, 5.99kWh in winter, and a remarkable 7.27kWh in spring. This pattern indicates that spring represents the peak solar generation season in Juazeiro do Norte, delivering approximately 24% more energy than the summer months.

Optimal Panel Installation

For fixed solar panel installations in Juazeiro do Norte, the ideal tilt angle to maximize year-round energy production is 7 degrees facing North. This slight tilt optimizes the capture of solar radiation throughout the year, accounting for the location's proximity to the equator and the sun's seasonal position variations.

Seasonal Considerations

Spring stands out as the most productive season for solar generation in this location. The significantly higher output during spring months suggests this would be an ideal time for energy-intensive activities or for feeding excess electricity back to the grid if net metering is available. Winter and autumn also perform admirably, with slightly higher production than summer. This consistent performance across seasons makes Juazeiro do Norte an excellent location for year-round solar dependability, unlike locations in higher latitudes that experience dramatic seasonal variations.

Environmental Considerations

Despite the favorable conditions, several environmental factors could potentially impact solar production in Juazeiro do Norte:
  • Dust accumulation: The region's dry seasons can lead to dust buildup on panels, reducing efficiency. Regular cleaning schedules should be implemented, potentially with automated cleaning systems for larger installations.
  • Heavy rainfall during wet seasons: While brief, tropical downpours typically clean panels naturally, extended cloud cover during these periods can temporarily reduce generation. System sizing should account for these predictable fluctuations.
  • Heat degradation: High tropical temperatures can slightly reduce panel efficiency. Installing panels with sufficient airflow underneath and using temperature-resistant models can mitigate this effect.
To maximize production, installations should incorporate elevated mounting systems with good ventilation, regular maintenance schedules aligned with dry season dust patterns, and potentially tracking systems for larger commercial installations to take full advantage of the consistent sunlight throughout the year.

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 Juazeiro Do Norte

Seasonal solar PV output for Latitude: -7.1467, Longitude: -39.247 (Juazeiro Do Norte, 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:

Summer
Average 5.83kWh/day in Summer.
Autumn
Average 5.87kWh/day in Autumn.
Winter
Average 5.99kWh/day in Winter.
Spring
Average 7.27kWh/day in Spring.

 

Ideally tilt fixed solar panels 7° North in Juazeiro Do Norte, Brazil

To maximize your solar PV system's energy output in Juazeiro Do Norte, Brazil (Lat/Long -7.1467, -39.247) 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.

The sun
At Latitude: -7.1467, Longitude: -39.247, the ideal angle to tilt panels is 7° North

Seasonally adjusted solar panel tilt angles for Juazeiro Do Norte, 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 Juazeiro Do Norte, 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

Assuming you can modify the tilt angle of your solar PV panels throughout the year, you can optimize your solar generation in Juazeiro Do Norte, Brazil as follows: In Summer, set the angle of your panels to 9° facing South. In Autumn, tilt panels to 13° facing North for maximum generation. During Winter, adjust your solar panels to a 23° angle towards the North for optimal energy production. Lastly, in Spring, position your panels at a 1° angle facing North to capture the most solar energy in Juazeiro Do Norte, Brazil.

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 Juazeiro Do Norte, 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 Juazeiro Do Norte, 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.






Please enter information above to calculate panel spacing.

Topography for solar PV around Juazeiro Do Norte, Brazil

The landscape surrounding Juazeiro do Norte in northeastern Brazil presents a fascinating topographical profile characteristic of Brazil's interior semi-arid region. Situated in the state of Ceará, this urban center nestles within the Chapada do Araripe region, which forms part of the broader geographical context of Brazil's sertão.

Topographical Features

Juazeiro do Norte sits at an elevation of approximately 400 meters above sea level. The city is positioned at the base of the impressive Chapada do Araripe, a large plateau formation that dominates the regional landscape. This plateau rises dramatically from the surrounding lowlands, with escarpments reaching heights of up to 900 meters in places. The terrain around Juazeiro do Norte exhibits considerable variation. To the south lies the imposing wall of the Chapada do Araripe, with its steep slopes and flat-topped summit. This plateau extends for approximately 180 kilometers in an east-west direction, creating a significant natural boundary. The northern aspects of the region present a more undulating landscape, characterized by gentler hills and occasional rocky outcrops typical of the Caatinga biome. Water features include the Salgado River, which flows near the city and forms part of the extensive Jaguaribe River basin. The hydrography of the region is notably affected by seasonal variations, with watercourses showing significant differences between the rainy and dry seasons.

Vegetation and Climate Context

The natural vegetation around Juazeiro do Norte consists primarily of Caatinga, Brazil's unique semi-arid ecosystem. This vegetation adapts to the region's climate conditions, with drought-resistant species predominating. The Chapada do Araripe itself hosts more lush vegetation, forming an "island" of greater biodiversity within the broader semi-arid landscape. The climate complements the topography, with the region experiencing high solar radiation levels throughout the year. The relatively stable weather patterns feature minimal cloud cover during much of the year, particularly outside the rainy season.

Optimal Areas for Solar PV Development

When considering large-scale solar photovoltaic installations near Juazeiro do Norte, several areas stand out as particularly suitable based on topographical considerations: The northern plains extending from Juazeiro do Norte offer excellent potential for solar development. These areas feature relatively flat terrain with minimal shading concerns, allowing for efficient array layout and installation. The gentle undulations present minimal challenges for construction while providing adequate drainage during seasonal rains. The elevated sections of land between Juazeiro do Norte and the neighboring municipality of Crato also present favorable conditions. These slightly elevated areas benefit from consistent exposure to solar radiation while avoiding the flood-prone lower sections near watercourses. Areas to the east of the city, extending toward Barbalha, combine favorable topography with proximity to existing transmission infrastructure. The gently sloping terrain in this direction provides natural advantages for solar panel orientation while minimizing earthwork requirements. Regions to avoid include the steeper slopes of the Chapada do Araripe itself, where construction challenges and potential environmental impacts would be significant. Similarly, the immediate floodplains of the Salgado River and its tributaries present periodic flooding risks that would complicate solar installation. The western approach to the city, with its combination of stable geological foundations and minimal slope, represents another promising zone for development. This area benefits from the full daily arc of solar exposure without significant topographical obstructions. In conclusion, the diverse topography surrounding Juazeiro do Norte creates several promising opportunities for solar PV development, particularly in the flatter northern, eastern, and western approaches to the city. These areas combine favorable terrain characteristics with the region's natural solar resource advantages.

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

Article: Solar PV Analysis of Juazeiro Do Norte, Brazil
Author: Aaron Robinson
Publisher: profileSOLAR.com
First Published: Sunday 29th of June 2025
Last Updated: Monday 21st of July 2025

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