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Flag of BrazilSolar PV Analysis of Morretes, Brazil

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

Solar Energy Production in Morretes, Paraná, Brazil

Morretes, Paraná, Brazil, located in the Southern Sub Tropics at coordinates -25.5308, -48.8743, offers moderately favorable conditions for solar PV energy generation throughout the year. The location experiences seasonal variations in solar energy production that follow typical patterns for the southern hemisphere. The energy output from solar panels in Morretes fluctuates across the four seasons. Summer (December to February) provides the highest energy yield at 5.58kWh per day for each kilowatt of installed capacity. Spring (September to November) follows with 4.36kWh/day, while autumn (March to May) produces 4.14kWh/day. Winter (June to August) shows the lowest output at 3.33kWh/day per kilowatt installed.

Optimal Panel Positioning

For fixed solar panel installations in Morretes, Paraná, the ideal tilt angle to maximize year-round energy production is 23 degrees facing North. This angle optimizes the capture of solar energy across all seasons, accounting for the location's position in the southern hemisphere.

Seasonal Considerations

The summer months clearly represent the peak production period in Morretes, Paraná, with nearly 68% more energy generation compared to winter. This makes December through February an excellent time for solar energy harvesting. The transition seasons of spring and autumn offer moderate production levels, with spring slightly outperforming autumn.

Environmental and Weather Challenges

Several environmental factors in Morretes may impact solar energy production:
  • High humidity and frequent rainfall in the region can reduce panel efficiency through cloud cover
  • The Atlantic Forest vegetation surrounding Morretes may create partial shading issues if not properly accounted for during installation
  • The coastal proximity brings salt spray concerns that can gradually degrade panel surfaces

Preventative Measures

To maximize solar production despite these challenges, several preventative measures are recommended:
  • Regular cleaning of panels to remove salt deposits and other accumulations
  • Strategic placement of panels away from tall vegetation to minimize shading
  • Using corrosion-resistant mounting hardware suitable for coastal environments
  • Installing micro-inverters or power optimizers to minimize production losses from partial shading
  • Considering slightly elevated tilt angles during winter months if adjustable mounts are feasible
While Morretes doesn't offer the exceptional solar conditions found in desert regions, its year-round production capability makes solar PV a viable renewable energy option, particularly if the installation is optimized for the specific local conditions.

Note: The Southern Sub Tropics extend from -23.5° latitude South down to -35° latitude.

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 Morretes

Seasonal solar PV output for Latitude: -25.5308, Longitude: -48.8743 (Morretes, 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 5.58kWh/day in Summer.
Autumn
Average 4.14kWh/day in Autumn.
Winter
Average 3.33kWh/day in Winter.
Spring
Average 4.36kWh/day in Spring.

 

Ideally tilt fixed solar panels 23° North in Morretes, Brazil

To maximize your solar PV system's energy output in Morretes, Brazil (Lat/Long -25.5308, -48.8743) throughout the year, you should tilt your panels at an angle of 23° 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: -25.5308, Longitude: -48.8743, the ideal angle to tilt panels is 23° North

Seasonally adjusted solar panel tilt angles for Morretes, 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 Morretes, Brazil. As mentioned earlier, for fixed-panel solar PV installations, it is optimal to maintain a 23° North tilt angle throughout the year.

Overall Best Summer Angle Overall Best Autumn Angle Overall Best Winter Angle Overall Best Spring Angle
10° North in Summer 31° North in Autumn 41° North in Winter 18° 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 Morretes, Brazil as follows: In Summer, set the angle of your panels to 10° facing North. In Autumn, tilt panels to 31° facing North for maximum generation. During Winter, adjust your solar panels to a 41° angle towards the North for optimal energy production. Lastly, in Spring, position your panels at a 18° angle facing North to capture the most solar energy in Morretes, 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 Morretes, 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 Morretes, 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 Morretes, Brazil

Morretes, situated in the state of Paraná, Brazil, is nestled in a region of striking topographical contrast. The town itself lies in a valley at the foot of the Serra do Mar mountain range, creating a dramatic backdrop to this historic settlement. The Serra do Mar forms a natural barrier between the coastal plains and the inland plateau, with steep escarpments rising abruptly from near sea level to elevations exceeding 1,500 meters in some places. The immediate surroundings of Morretes feature a mixture of gently rolling terrain near the Nhundiaquara River, which flows through the town, and increasingly rugged landscapes as one moves westward toward the mountains. The eastern approach to Morretes is characterized by lowland coastal plains that gradually transition into the Atlantic Forest-covered foothills.

Topographical Features

The Serra do Mar mountain range dominates the western horizon when viewed from Morretes. These mountains are part of the Great Escarpment that runs along much of Brazil's southeastern coast. They are characterized by steep slopes, deep valleys, and numerous waterfalls. The mountains are heavily forested with Atlantic Rainforest vegetation, one of the most biodiverse ecosystems on the planet. The terrain immediately surrounding Morretes is a mixture of floodplains along the Nhundiaquara River and its tributaries, interspersed with gently rising hills. As one moves eastward toward the coast, the landscape flattens considerably, eventually giving way to mangroves and coastal ecosystems near Paranaguá Bay.

Potential Areas for Solar PV Development

When considering locations for large-scale solar photovoltaic installations near Morretes, several factors must be taken into account, including topography, land availability, and environmental considerations. The coastal plains to the east of Morretes present the most favorable topography for large-scale solar installations. These areas are relatively flat, which minimizes the cost and complexity of site preparation. The open terrain also reduces issues with shading that would be prevalent in the mountainous regions to the west. Specifically, the areas between Morretes and Paranaguá offer the best combination of flat terrain and proximity to existing infrastructure. These lowlands provide ample space for solar arrays without the need for significant land modification. The relatively stable soil conditions in these areas would also reduce foundation costs compared to steeper or less stable terrains. The highlands of the Serra do Mar, while receiving good solar exposure on their eastern faces, present significant challenges for large-scale installations due to their steep slopes, difficult access, and environmental sensitivity. Additionally, the dense forest coverage would require substantial clearing, raising environmental concerns and potentially facing regulatory hurdles. Some of the gently sloping hillsides on the outskirts of Morretes could serve as intermediate options, offering reasonable topography while still being close to existing roads and transmission infrastructure. These areas might be particularly suitable for smaller or medium-scale installations. It's worth noting that any development in this region must carefully consider the rich biodiversity and ecological importance of the Atlantic Forest ecosystem. The most suitable areas for solar development would be those that have already experienced some level of human modification, such as former agricultural lands or degraded pastures, rather than pristine natural areas.

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 Morretes, 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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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.

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