Barreiros, Brazil offers a promising location for solar PV energy generation, situated in the tropical region where sunlight remains relatively consistent throughout the year. This coastal municipality in Pernambuco state experiences seasonal variations in solar energy production that follow patterns somewhat different from temperate regions.

Seasonal Solar Production

Solar panels in Barreiros generate their highest electricity output during Spring, producing approximately 6.73 kWh per day for each kilowatt of installed capacity. Summer follows closely behind with 6.27 kWh/day. Production decreases somewhat during Autumn (5.36 kWh/day) and reaches its lowest point during Winter (4.72 kWh/day).

Even during the least productive season, Winter, the output remains substantial compared to many non-tropical locations worldwide. This relatively small seasonal variation makes Barreiros a favorable location for year-round solar energy production.

Optimal Panel Installation

For fixed solar panel installations in Barreiros, the ideal tilt angle to maximize year-round production is 7 degrees facing North. This slight tilt optimizes exposure to the sun's path throughout the year, accounting for the location's proximity to the equator and the Earth's elliptical orbit.

Environmental and Weather Considerations

Several factors could potentially impact solar production in Barreiros:

• Coastal humidity and salt spray may accelerate corrosion of solar equipment, particularly mounting hardware and electrical connections.
• The region experiences a distinct rainy season (typically May through August), which coincides with the winter months when solar production is already at its lowest.
• Occasional tropical storms and heavy rainfall events could temporarily reduce production and potentially damage improperly secured installations.

Preventative Measures

To maximize solar energy production in Barreiros, several practical steps should be considered:

• Use marine-grade materials and corrosion-resistant mounting hardware to withstand coastal conditions.
• Install panels with sufficient drainage and self-cleaning capabilities to handle heavy rainfall periods.
• Consider slightly oversizing the system to compensate for reduced winter/rainy season output.
• Implement robust mounting systems designed to withstand tropical storm conditions.
• Schedule more frequent maintenance during and after the rainy season to remove any debris and check for salt accumulation.

With proper installation and maintenance, Barreiros presents an excellent opportunity for solar energy production throughout the year, with its high and relatively consistent solar radiation levels making it well-suited for both residential and commercial applications.

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 Barreiros

Seasonal solar PV output for Latitude: -8.8099, Longitude: -35.2413 (Barreiros, 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 Barreiros, Brazil

To maximize your solar PV system's energy output in Barreiros, Brazil (Lat/Long -8.8099, -35.2413) 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 Barreiros, 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 Barreiros, 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
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 Barreiros, 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 Barreiros, 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 Barreiros, Brazil

Topography of Barreiros, Brazil

Barreiros is situated in the northeastern Brazilian state of Pernambuco, nestled along the Atlantic coastline. The topography of this region is characterized by a diverse landscape that transitions from coastal plains to gently rolling hills as one moves inland. The coastal area features sandy beaches and small lagoons, with elevations near sea level. Moving slightly inland, the terrain begins to undulate with low hills typically ranging from 20 to 100 meters above sea level. The municipality sits at the southern portion of Pernambuco's coastal zone, where the terrain is influenced by the remnants of the Atlantic Forest biome. This landscape has been significantly altered by human activity, particularly for sugarcane cultivation, which has been the dominant agricultural activity in the region for centuries. The natural vegetation that once covered these rolling hills has been largely replaced by agricultural land, though some patches of secondary forest remain in steeper areas. Several small rivers and streams dissect the landscape, creating valleys between the hills. The most significant water feature is the Una River, which flows through the region before emptying into the Atlantic Ocean. These waterways have carved gentle valleys throughout the area, creating a patchwork of different elevation levels.

Solar PV Potential Areas

For large-scale solar photovoltaic installations, the gently rolling inland hills of Barreiros offer promising potential. These areas benefit from several favorable characteristics: The inland hills, situated approximately 5-15 kilometers from the coast, provide relatively flat plateaus and gentle slopes that would require minimal grading for solar array installation. These areas typically range between 50-100 meters above sea level and offer good exposure to sunlight throughout the day. Former sugarcane plantations on these hills represent particularly suitable locations for solar development. These areas have already been cleared of native vegetation and have existing access roads, minimizing the environmental impact and infrastructure costs of new solar installations. The northern portions of the municipality, which feature slightly higher elevations and less fragmented land ownership patterns, would be especially conducive to large-scale development. These areas generally have fewer settlements and provide the contiguous land area necessary for utility-scale solar farms. Areas to avoid would include the immediate coastal zone, which has higher population density, tourism value, and potential for salt spray that could degrade solar equipment. Similarly, the steeper hillsides and remaining forest fragments should be preserved for their ecological value and erosion control functions. The western boundary areas of the municipality, where the topography begins to rise more significantly toward the interior plateau of Pernambuco, offer a good balance of favorable solar exposure, existing infrastructure access, and sufficient distance from coastal influences. These transitional zones between the coastal plain and the higher interior elevations present some of the most promising locations for large-scale solar development in the Barreiros region.

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

Tell Us About Your Work

We love seeing how our research helps others! If you've cited this article in your work, we'd be delighted to hear about it. Drop us a line via our Contact Us page or on X, to share where you've used our information - we may feature a link to your work on our site. This helps create a network of valuable resources for others in the solar energy community and helps us understand how our research is contributing to the field. Plus, we occasionally highlight exceptional works that reference our research on our social media channels.

Feeling generous?

Share this with your friends!

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.