Vigia, Pará, Brazil presents an excellent location for year-round solar energy generation, with consistently strong solar output throughout all seasons. Located in the tropical region near the equator, this area benefits from reliable sunlight patterns that make it highly suitable for solar photovoltaic installations.

Seasonal Solar Performance

The solar energy production at Vigia shows impressive consistency across the year, with some notable seasonal variations. Spring emerges as the peak production season, delivering 6.68 kWh per day per kW of installed solar capacity. Winter follows closely behind at 6.04 kWh per day, making it another excellent period for solar generation. Summer and autumn show slightly lower but still very strong production levels, with summer generating 5.12 kWh per day and autumn producing 4.92 kWh per day per kW installed. This seasonal pattern is typical for tropical locations, where the sun's angle and atmospheric conditions create optimal generation periods during certain months. The ideal times for maximum solar generation at this location are spring and winter months, when atmospheric conditions and sun angles combine to produce the highest daily energy yields.

Optimal Panel Configuration

For fixed panel installations at Vigia, Pará, the ideal tilt angle to maximize total year-round solar production is just 1 degree North. This nearly flat configuration takes advantage of the location's proximity to the equator, where the sun travels high overhead throughout the year. This minimal tilt angle helps capture maximum solar irradiance across all seasons while accounting for the Earth's orbital variations.

Environmental Challenges and Solutions

Several environmental factors in Vigia could potentially impact solar energy production, though the location remains highly favorable overall. The tropical climate brings specific challenges that require consideration during installation and maintenance. High humidity levels are common in this equatorial region and can lead to moisture-related issues with electrical components. Proper sealing of electrical connections, use of moisture-resistant equipment, and adequate ventilation around inverters and other electronics help mitigate these concerns. Heavy rainfall during wet seasons can temporarily reduce solar output due to cloud cover, though the consistent year-round production data suggests this impact is manageable. More importantly, intense tropical downpours can help naturally clean solar panels, but they also create the need for robust drainage systems around installations to prevent water accumulation and potential flooding of ground-mounted equipment. The tropical environment supports abundant vegetation growth, which can create shading issues if not properly managed. Regular vegetation maintenance and strategic placement of solar arrays away from large trees or fast-growing plants helps maintain optimal sun exposure.

Preventative Installation Measures

To maximize energy production at this location, several preventative measures should be implemented:

• Install panels with adequate spacing for air circulation to prevent overheating in the tropical climate
• Use corrosion-resistant mounting hardware designed for high-humidity environments
• Implement proper grounding and surge protection systems to handle potential lightning strikes common in tropical regions
• Design drainage systems to handle heavy rainfall and prevent water accumulation around equipment
• Plan regular cleaning schedules to remove dust, pollen, and organic matter that may accumulate on panel surfaces

Despite these environmental considerations, Vigia's location offers exceptional solar energy potential with strong, consistent output throughout the year, making it an ideal site for solar photovoltaic installations when proper installation and maintenance practices are followed.

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 Vigia

Seasonal solar PV output for Latitude: -0.8938, Longitude: -48.1496 (Vigia, 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 1° North in Vigia, Brazil

To maximize your solar PV system's energy output in Vigia, Brazil (Lat/Long -0.8938, -48.1496) throughout the year, you should tilt your panels at an angle of 1° 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 Vigia, 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 Vigia, Brazil. As mentioned earlier, for fixed-panel solar PV installations, it is optimal to maintain a 1° North tilt angle throughout the year.

Overall Best Summer Angle	Overall Best Autumn Angle	Overall Best Winter Angle	Overall Best Spring Angle
16° South in Summer	8° North in Autumn	17° North in Winter	5° 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 Vigia, 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 Vigia, 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 Vigia, Brazil

Topography Around Vigia, Brazil

Vigia is situated in the state of Pará in northern Brazil, positioned along the eastern bank of the Amazon River delta region. The town sits on relatively flat terrain characteristic of the Amazon lowlands, with elevations rarely exceeding 20 meters above sea level. This area forms part of the vast Amazonian floodplain, where the landscape has been shaped by millennia of river sediment deposits and seasonal flooding cycles.

The topography surrounding Vigia consists predominantly of gentle undulating plains interspersed with numerous waterways, including rivers, streams, and seasonal wetlands. The terrain slopes very gradually toward the Atlantic Ocean to the northeast, creating a network of tidal channels and estuarine environments. Much of the immediate area experiences periodic flooding during the wet season, as the Amazon River system swells and inundates the lower-lying areas.

Dense tropical rainforest covers significant portions of the landscape, though human settlement and agricultural activities have created clearings and open areas throughout the region. The soil composition is primarily alluvial, consisting of fertile sediments deposited by the river systems over thousands of years. Natural levees and slightly elevated ridges provide the most stable ground for development and infrastructure.

Optimal Areas for Large-Scale Solar Development

The most suitable locations for large-scale solar photovoltaic installations around Vigia would be the elevated areas that remain above the seasonal flood levels. These higher ground areas, though still relatively low in absolute elevation, provide the stability and accessibility necessary for major solar infrastructure projects. The natural levees and ridge systems that run parallel to the major waterways offer the best combination of elevation, drainage, and proximity to existing transportation networks.

Areas that have already been cleared for agriculture or cattle ranching present particularly attractive opportunities for solar development, as they require minimal additional land preparation and often have existing access roads. These cleared areas typically feature relatively flat terrain with good drainage characteristics, making them ideal for large solar arrays. The proximity to the regional electrical grid infrastructure, which tends to follow the main transportation corridors, would also facilitate connection and power distribution.

The elevated areas to the south and southwest of Vigia, moving inland from the immediate river delta region, offer the most promising terrain for extensive solar installations. These locations benefit from better drainage, reduced flood risk, and more stable ground conditions while still maintaining reasonable access to transportation networks and electrical infrastructure. The slightly rolling topography in these areas provides natural breaks that can accommodate the spacing requirements of large solar arrays while minimizing the need for extensive earthwork or grading operations.

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.