Fortaleza, Ceará, Brazil, situated at latitude -3.7138 and longitude -38.5285, offers a promising location for solar energy generation. Located in the tropics, this coastal city experiences consistent sunlight throughout the year, making it an attractive option for solar PV installations.

Seasonal Solar Performance

Solar energy production in Fortaleza remains relatively stable across seasons, with slight variations:

• Spring: 7.26 kWh/day (highest output)
• Winter: 6.43 kWh/day
• Summer: 6.39 kWh/day
• Autumn: 5.78 kWh/day (lowest output)

The minimal fluctuation between seasons indicates that Fortaleza is well-suited for year-round solar energy generation. Spring stands out as the most productive season, while autumn sees a slight dip in output.

Optimal Panel Positioning

For fixed panel installations in Fortaleza, Ceará, the ideal tilt angle to maximize year-round solar production is 4 degrees North. This slight tilt helps optimize energy capture throughout the year, accounting for the city's proximity to the equator and the Earth's elliptical orbit.

Environmental Considerations

While Fortaleza's climate is generally favorable for solar energy production, there are a few factors to consider:

Coastal location: Fortaleza's proximity to the ocean may expose solar panels to salt spray, potentially leading to corrosion over time. To mitigate this, installers should use corrosion-resistant materials and apply protective coatings to the panels and mounting systems.

Rainy season: Fortaleza experiences a rainy season from February to May, which could temporarily reduce solar output. Installing panels at the optimal angle helps with water runoff, and regular cleaning can prevent dirt accumulation that might impact efficiency.

Overall, Fortaleza's tropical location and consistent sunlight make it an excellent choice for solar PV installations. With proper planning and maintenance, the city's environmental factors can be effectively managed to ensure optimal energy production 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 Fortaleza

Seasonal solar PV output for Latitude: -3.7138, Longitude: -38.5285 (Fortaleza, 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 Fortaleza, Brazil

To maximize your solar PV system's energy output in Fortaleza, Brazil (Lat/Long -3.7138, -38.5285) 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 Fortaleza, 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 Fortaleza, 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
12° 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 Fortaleza, 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 Fortaleza, 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 Fortaleza, Brazil

Fortaleza, located on Brazil's northeastern coast, is characterized by a relatively flat topography with some gentle undulations. The city itself sits on a coastal plain, with elevations generally ranging from sea level to about 30 meters above sea level. The immediate surroundings of Fortaleza feature a mix of urban development, sandy beaches, and coastal vegetation. As you move inland from the coast, the terrain gradually becomes more varied. To the south and southwest of Fortaleza, the landscape transitions into a region known as the sertão, which is characterized by a semi-arid climate and more rugged terrain. This area features low hills, rocky outcrops, and dry riverbeds that fill during the rainy season.

Potential Areas for Large-Scale Solar PV

The regions surrounding Fortaleza offer several promising locations for large-scale solar photovoltaic (PV) installations. The most suitable areas would be found in the inland regions to the south and southwest of the city, where the semi-arid climate provides ample sunlight throughout the year. The sertão region, with its sparse vegetation and relatively flat to gently rolling terrain, presents ideal conditions for solar farms. These areas receive high levels of solar radiation and have lower land costs compared to urban or coastal zones. Additionally, the reduced cloud cover in this semi-arid climate ensures more consistent solar energy production. Specific locations that might be particularly well-suited for large-scale solar PV installations include the municipalities of Quixadá, Quixeramobim, and Tauá. These areas, located between 150 to 300 kilometers from Fortaleza, offer expansive, open landscapes with minimal obstructions to sunlight. It's worth noting that while these inland areas are most suitable for large-scale installations, smaller solar projects could also be implemented closer to Fortaleza. Rooftop solar systems on large industrial buildings or shopping centers in the city's outskirts could contribute significantly to local energy production. When considering potential sites for solar PV installations, factors such as proximity to existing power infrastructure, environmental impact, and local land use regulations would need to be carefully evaluated. Despite these considerations, the region around Fortaleza offers significant potential for harnessing solar energy on a large scale.

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.