Matinhos, Paraná, Brazil, located in the Southern Sub Tropics, offers a reasonably productive location for solar PV energy generation throughout the year, though with notable seasonal variations. This coastal city in southern Brazil experiences its highest solar energy production during summer months, when systems can generate approximately 5.58kWh per day for each kilowatt of installed capacity.

Seasonal Solar Production

Solar energy production in Matinhos follows a predictable seasonal pattern. Summer (December-February) provides the peak production period with 5.58kWh per day per installed kilowatt. Spring (September-November) offers the second-highest production at 4.36kWh/day, followed closely by autumn (March-May) at 4.14kWh/day. Winter (June-August) shows the lowest output at 3.33kWh/day per kilowatt of installed capacity.

This seasonal variation means that while solar energy is viable year-round in Matinhos, Paraná, production drops by approximately 40% during winter months compared to summer peaks. However, even during winter, the location still produces sufficient energy to make solar installations worthwhile.

Optimal Installation

For fixed panel installations in Matinhos, Paraná, the ideal angle to maximize year-round production is 23 degrees facing North. This tilt angle optimizes the annual solar harvest by accounting for the location's position in the Southern Hemisphere, ensuring panels receive maximum exposure throughout the year.

Environmental Considerations

Several environmental factors could impact solar production in Matinhos. As a coastal city, salt spray from the Atlantic Ocean can accumulate on solar panels, potentially reducing efficiency over time. Regular cleaning with fresh water is recommended to prevent salt buildup.

The region also experiences a humid subtropical climate with significant rainfall throughout the year, which can temporarily reduce production during precipitation events. Installing panels with adequate drainage and selecting high-quality waterproof components is essential.

Additionally, Matinhos experiences occasional tropical storms during summer months that can bring heavy winds. Ensuring panels are securely mounted with wind-resistant racking systems rated for coastal conditions will help protect the investment.

To maximize production despite these challenges, consider installing panels with anti-reflective and self-cleaning coatings, implementing a regular maintenance schedule, and using microinverters or power optimizers to minimize the impact of partial shading from coastal fog or cloud cover that may occur, particularly in morning hours.

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 Matinhos

Seasonal solar PV output for Latitude: -25.7611, Longitude: -48.5729 (Matinhos, 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 23° North in Matinhos, Brazil

To maximize your solar PV system's energy output in Matinhos, Brazil (Lat/Long -25.7611, -48.5729) 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.

Seasonally adjusted solar panel tilt angles for Matinhos, 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 Matinhos, 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

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 Matinhos, 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 Matinhos, 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 Matinhos, Brazil

The region around Matinhos, Brazil presents a diverse and striking topographical profile characteristic of Brazil's southern coastal areas. Matinhos itself is situated on the Atlantic coast of Paraná state, nestled between the ocean and the impressive Serra do Mar mountain range. This location creates a dramatic landscape where mountains meet sea in a relatively compact geographical area.

Coastal Lowlands

Matinhos sits on a narrow coastal plain that extends along much of Paraná's shoreline. This flat, low-lying area is composed primarily of sandy soils and sedimentary deposits. The terrain here rarely exceeds a few meters above sea level, creating extensive beaches and coastal ecosystems including mangroves and restinga (coastal tropical and subtropical moist broadleaf forest). The coastal plain is relatively narrow compared to other parts of Brazil's coastline, as the mountains rise quickly when moving inland.

Serra do Mar Mountains

Just a few kilometers inland from Matinhos rises the imposing Serra do Mar mountain range, which runs parallel to much of Brazil's southeastern coast. These mountains form a natural barrier between the coastal regions and the interior plateaus. Near Matinhos, the Serra do Mar features steep slopes covered in dense Atlantic Forest vegetation. The elevation change is dramatic, with peaks reaching 1,500-1,800 meters above sea level within a relatively short distance from the coast. This mountain range significantly influences the local climate, often trapping moisture from the ocean and creating abundant rainfall on the coastal slopes.

Valleys and Watersheds

Between the coastal plain and the higher elevations of Serra do Mar lie numerous valleys carved by rivers flowing from the mountains to the Atlantic Ocean. These valleys create a complex pattern of ridges and depressions, with varying slopes and aspects. The watersheds in this region tend to be relatively small but numerous, with rivers generally flowing in an east-southeast direction toward the ocean. The valleys often feature more fertile soils compared to the sandy coastal areas, supporting different vegetation types and agricultural activities.

Potential Areas for Solar PV Development

When considering large-scale solar photovoltaic development in the Matinhos region, several factors related to the topography must be taken into account. The most suitable areas would likely include: The coastal plain areas offer relatively flat terrain that would minimize grading and site preparation costs for solar installations. These areas also tend to have fewer obstructions that could cast shadows on solar panels. However, the coastal plain near Matinhos is narrow and much of it is already developed for urban and tourist purposes, which may limit available land. The lower foothills of the Serra do Mar, particularly on east and north-facing slopes, could provide viable locations for solar development. These areas receive good solar exposure while avoiding the steepest terrain of the mountains. Sites at moderate elevations may also benefit from reduced fog compared to locations directly on the coast. The broader valleys between mountain ridges, especially those with a north-south orientation that allows for east-west facing installations, could be suitable for solar development. These areas often have more available land than the densely populated coastal strip.

Topographical Challenges

Despite these potential areas, the topography around Matinhos presents several challenges for large-scale solar development. The steep slopes of the Serra do Mar make much of the inland area impractical for solar farms due to difficulties with construction, maintenance access, and potential erosion issues. Additionally, the region's abundant rainfall and frequent cloud cover, particularly during summer months, can reduce solar efficiency. The dense Atlantic Forest vegetation that covers much of the non-urban land in the region represents another constraint, as clearing this protected ecosystem for solar development would face significant environmental restrictions and opposition. The most practical approach would likely involve identifying already cleared or degraded lands on suitable terrain, particularly in the transition zones between the coastal plain and the steeper mountain slopes.

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.