Capanema, Brazil presents excellent conditions for year-round solar energy generation. Located in the tropical region at coordinates -1.1009, -47.0778, this area benefits from consistent sunlight throughout most of the year, with seasonal variations characterized more by wet and dry periods rather than dramatic temperature changes.

Solar Energy Output Performance

The solar energy production data for Capanema shows remarkably strong and consistent performance across all seasons. Winter emerges as the peak production period, generating 6.04 kWh per day per kW of installed solar capacity, followed closely by spring at 6.27 kWh per day per kW. Even during the lower-performing seasons, autumn delivers 5.36 kWh per day per kW, while summer produces 5.03 kWh per day per kW. This seasonal pattern is typical for locations near the equator, where winter months often provide clearer skies and more direct solar radiation. The relatively small variation between seasons (approximately 25% difference between highest and lowest production) demonstrates the location's reliability for consistent solar energy generation throughout the year.

Optimal Panel Installation

For fixed panel installations at Capanema, the ideal tilt angle to maximize total year-round solar production is 2 degrees North. This nearly flat angle reflects the location's proximity to the equator, where the sun passes almost directly overhead throughout much of the year.

Environmental and Weather Challenges

Several environmental factors in Capanema could potentially impact solar energy production, though the strong output numbers suggest these challenges are manageable with proper planning. The tropical climate brings distinct wet and dry seasons, with the wet season potentially creating significant challenges for solar installations. Heavy rainfall, high humidity, and frequent cloud cover during wet periods can reduce solar irradiance and create maintenance issues. However, the seasonal production data suggests that even during potentially cloudier periods, the location maintains good energy output.

Humidity and Moisture Management

The consistently high humidity levels typical of tropical regions can lead to several issues. Moisture can accumulate on panel surfaces, reducing light transmission and energy production. More critically, humidity can cause corrosion of electrical components and connections over time, potentially leading to system failures or reduced efficiency.

Tropical Weather Patterns

Intense tropical storms and heavy rainfall events can pose risks to solar installations. While these weather systems can clean panels naturally, they also bring strong winds and potential debris that could damage equipment.

Preventative Measures for Optimal Performance

Several installation and maintenance strategies can help maximize solar energy production in Capanema's tropical environment:

• Install panels with adequate ventilation spacing to promote air circulation and reduce moisture buildup
• Use marine-grade or tropical-rated electrical components and wiring designed to withstand high humidity
• Apply anti-corrosion treatments to all metal mounting hardware and electrical connections
• Design mounting systems to withstand tropical storm conditions with appropriate wind load ratings
• Implement regular cleaning schedules to remove accumulated dust, pollen, and organic matter

Maintenance Considerations

Regular maintenance becomes particularly important in tropical climates. Installing monitoring systems can help identify performance drops quickly, allowing for prompt cleaning or repairs. Scheduling maintenance during dry seasons can be more practical and effective. The installation of drainage systems around ground-mounted arrays can prevent water accumulation during heavy rains. For rooftop installations, ensuring proper roof drainage and structural integrity becomes crucial given the potential for intense rainfall events.

Overall Assessment

Despite the environmental challenges typical of tropical locations, Capanema demonstrates excellent potential for solar energy generation. The strong and consistent energy output across all seasons, combined with the optimal 2-degree panel tilt angle, makes this location highly suitable for solar PV installations. With proper equipment selection, installation techniques, and maintenance protocols, the environmental factors can be effectively managed to ensure reliable long-term solar energy production.

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 Capanema, Pará

Seasonal solar PV output for Latitude: -1.1009, Longitude: -47.0778 (Capanema, Pará, 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 2° North in Capanema, Pará, Brazil

To maximize your solar PV system's energy output in Capanema, Pará, Brazil (Lat/Long -1.1009, -47.0778) throughout the year, you should tilt your panels at an angle of 2° 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 Capanema, Pará, 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 Capanema, Pará, Brazil. As mentioned earlier, for fixed-panel solar PV installations, it is optimal to maintain a 2° North tilt angle throughout the year.

Overall Best Summer Angle	Overall Best Autumn Angle	Overall Best Winter Angle	Overall Best Spring Angle
15° 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 Capanema, Pará, 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 Capanema, Pará, 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 Capanema, Pará, Brazil

Topographical Features of the Capanema Region

Capanema is located in the northeastern state of Pará, Brazil, within the Amazon Basin region. The topography around this area is characterized by relatively flat to gently rolling terrain typical of the Amazon lowlands. The landscape consists primarily of low-lying plains with elevations generally ranging from 20 to 100 meters above sea level, creating a predominantly level terrain that extends across much of the surrounding region.

The area features a network of small rivers and streams that flow through the landscape, creating subtle variations in elevation with gentle slopes leading down to waterways. These water features contribute to the formation of occasional low ridges and shallow valleys, though the overall relief remains modest. The terrain is interspersed with areas of both natural forest and cleared agricultural land, reflecting the region's mixed land use patterns.

The soil composition in the region consists mainly of sedimentary deposits typical of the Amazon Basin, with areas of both well-drained and seasonally flooded soils. The relatively stable geological foundation and gentle topography create conditions that are generally favorable for large-scale development projects, as the terrain requires minimal grading or extensive earthwork preparation.

Optimal Areas for Large-Scale Solar Development

The flat to gently rolling topography around Capanema presents several advantages for large-scale solar photovoltaic installations. The most suitable areas would be the elevated plateaus and gentle ridges that provide good drainage while maintaining relatively level surfaces. These locations offer the dual benefits of avoiding seasonal flooding risks while requiring minimal site preparation costs.

Areas that have already been cleared for agricultural use would be particularly well-suited for solar development, as they combine the necessary open space with existing access infrastructure. The former pastureland and agricultural fields scattered throughout the region provide large contiguous areas with minimal vegetation clearing requirements. These sites typically offer good soil stability and established road access, reducing initial development costs.

The slightly elevated areas between the various small waterways would be ideal candidates for solar farm placement. These locations provide natural drainage away from the installation sites while maintaining the gentle slopes that are optimal for solar panel orientation and maintenance access. The terrain in these areas typically offers sufficient space for large arrays while remaining above the seasonal flood levels that can affect lower-lying areas near the rivers and streams.

Areas with southern exposure on the gentle slopes would be particularly advantageous, as they can provide optimal panel positioning for maximum solar collection throughout the day. The consistent topography across much of the region means that large installations can be designed with uniform panel layouts, improving both efficiency and maintenance 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.