Garanhuns, Pernambuco, Brazil, located at latitude -8.9317 and longitude -36.5162, offers a promising environment for solar energy generation throughout the year. This tropical location benefits from consistent sunlight, with seasons characterized more by wet and dry periods than temperature variations.

Seasonal Solar Performance

The solar energy potential in Garanhuns demonstrates strong year-round performance, with some seasonal fluctuations. Spring emerges as the most productive season, yielding an impressive 7.26 kWh per day for each kilowatt of installed solar capacity. Summer follows closely with 6.58 kWh/day, while autumn and winter show slightly lower but still substantial outputs of 5.84 kWh/day and 5.05 kWh/day, respectively.

Optimal Panel Tilt

For fixed solar panel installations in Garanhuns, Pernambuco, the ideal tilt angle to maximize year-round energy production is 8 degrees facing North. This angle takes into account the location's proximity to the equator and the sun's path throughout the year, ensuring optimal sunlight capture across all seasons.

Environmental Considerations

While Garanhuns presents favorable conditions for solar energy production, there are a few environmental factors to consider: 1. Rainfall: The region experiences a rainy season, typically from March to August. Heavy cloud cover during this period may slightly reduce solar panel efficiency. 2. Dust and pollen: The area's agricultural activities and natural vegetation can lead to dust and pollen accumulation on solar panels. To mitigate these factors, consider implementing the following measures: • Install a reliable cleaning system or schedule regular manual cleaning to remove dust and pollen from panel surfaces. • Use high-quality, weather-resistant solar panels designed to perform well in humid conditions.

Conclusion

Overall, Garanhuns presents an ideal location for solar PV installations. Its consistent sunlight throughout the year, coupled with strong seasonal performance, makes it a prime candidate for solar energy production. By addressing minor environmental challenges through proper maintenance and equipment selection, solar installations in this area can achieve excellent energy yields year-round.

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 Garanhuns

Seasonal solar PV output for Latitude: -8.9317, Longitude: -36.5162 (Garanhuns, 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 8° North in Garanhuns, Brazil

To maximize your solar PV system's energy output in Garanhuns, Brazil (Lat/Long -8.9317, -36.5162) throughout the year, you should tilt your panels at an angle of 8° 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 Garanhuns, 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 Garanhuns, Brazil. As mentioned earlier, for fixed-panel solar PV installations, it is optimal to maintain a 8° 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	15° North in Autumn	25° North in Winter	3° 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 Garanhuns, 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 Garanhuns, 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 Garanhuns, Brazil

The topography around Garanhuns, Brazil, is characterized by its unique position in the Borborema Plateau region. This area is known for its hilly terrain and higher elevation compared to the surrounding coastal plains. Garanhuns itself sits at an altitude of approximately 900 meters (2,950 feet) above sea level, making it one of the highest cities in northeastern Brazil. The landscape surrounding Garanhuns features a series of rolling hills and valleys, creating a picturesque and varied terrain. These hills are part of the larger Borborema Plateau, which extends across several northeastern Brazilian states. The area's elevation contributes to its milder climate compared to the hot and humid conditions typical of much of northeastern Brazil. Vegetation in the region is diverse, with a mix of Atlantic Forest remnants and more open, grassy areas. The higher parts of the hills often have less dense vegetation, while the valleys and lower slopes may have more lush plant life. This varied topography has earned Garanhuns the nickname "Swiss City of the Northeast" due to its hilly nature and pleasant climate.

Suitability for Large-Scale Solar PV

When considering areas nearby Garanhuns for large-scale solar photovoltaic (PV) installations, several factors come into play. The most suitable locations would likely be found on the higher, more open areas of the surrounding hills. These elevated spots typically receive more direct sunlight throughout the day and are less likely to be shaded by nearby terrain or vegetation. The gently sloping hillsides facing south or southwest would be particularly advantageous for solar PV installations. These orientations allow for optimal sun exposure throughout the day, maximizing energy generation potential. Additionally, areas with minimal vegetation and easy access for construction and maintenance would be preferable. It's worth noting that while the hilly terrain provides good options for solar exposure, it may also present challenges in terms of infrastructure development. Flat or gently sloping areas that are large enough to accommodate substantial solar arrays while still being easily accessible might be somewhat limited. Areas to the east and northeast of Garanhuns, where the terrain begins to flatten out towards the coast, could also offer suitable locations for large-scale solar projects. These regions might provide larger contiguous areas of land with good sun exposure, although they would be at lower elevations than Garanhuns itself. Before any large-scale solar PV project could be implemented, detailed site surveys would be necessary to assess factors such as exact topography, soil conditions, existing land use, and proximity to electrical grid infrastructure. Environmental impact assessments would also be crucial to ensure that such developments do not negatively affect the local ecosystem or communities.

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.