Terra Santa, Pará, Brazil presents an exceptionally favorable location for year-round solar photovoltaic energy generation. Located in the tropical region where sunlight remains consistent throughout most of the year, this area experiences seasons characterized more by wet and dry periods rather than the traditional temperature-based seasons found in temperate climates.

Solar Energy Production Potential

The solar energy output data for Terra Santa demonstrates remarkably consistent and high production levels throughout the year. With expected daily electricity generation ranging from 5.15 to 5.93 kWh per kilowatt of installed solar capacity, this location ranks among the more productive solar sites globally. Spring emerges as the peak season for solar generation, producing 5.93 kWh per day per kW of installed capacity. Winter follows closely as the second-best performing season at 5.57 kWh per day per kW. Summer and autumn show nearly identical production levels at 5.17 and 5.15 kWh per day per kW respectively, indicating exceptional year-round reliability. For fixed panel installations at this location, the ideal tilt angle to maximize total annual solar production is just 2 degrees North. This minimal tilt angle reflects Terra Santa's proximity to the equator, where the sun maintains a consistently high position in the sky throughout the year.

Environmental and Weather Factors

Several significant environmental factors could potentially impact solar production at Terra Santa, Pará, primarily related to its tropical climate and geographic characteristics. High Humidity and Moisture: The tropical climate brings elevated humidity levels year-round, which can lead to moisture accumulation on solar panels and reduced light transmission. Additionally, high humidity can accelerate corrosion of electrical components and mounting systems if not properly protected. Wet Season Challenges: During the wet season, frequent rainfall and extended periods of cloud cover can temporarily reduce solar irradiance. Heavy rains may also deposit organic matter, mud, or debris on panel surfaces, creating shading and reducing efficiency. Tropical Vegetation: The lush tropical environment means rapid plant growth that could create shading issues if vegetation is not properly managed around solar installations. High Temperatures: Consistent tropical heat can reduce solar panel efficiency, as photovoltaic cells typically lose efficiency as temperatures rise above optimal operating ranges.

Preventative Measures for Optimal Performance

Several installation strategies can help maximize solar energy production despite these environmental challenges:

• Install panels with adequate ventilation spacing beneath to promote air circulation and cooling
• Use corrosion-resistant mounting materials specifically rated for tropical marine environments
• Implement regular cleaning schedules, particularly during and after the wet season
• Design panel arrays with steeper tilt angles than the calculated optimum to promote self-cleaning during rainfall
• Establish vegetation management zones around installations to prevent shading

Electrical Protection: All electrical connections and inverters should be housed in weatherproof enclosures with proper drainage and ventilation. Using marine-grade electrical components can significantly extend system lifespan in the humid tropical environment. Panel Selection: Choose solar panels with anti-reflective coatings and hydrophobic surface treatments that help shed water and reduce dirt accumulation. Panels with better temperature coefficients will also maintain higher efficiency in the consistently warm climate. Despite these environmental considerations, Terra Santa's exceptional solar resource and minimal seasonal variation make it an outstanding location for solar energy generation, with proper installation techniques easily addressing the tropical climate challenges.

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 Terra Santa

Seasonal solar PV output for Latitude: -1.8975, Longitude: -56.48 (Terra Santa, 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 Terra Santa, Brazil

To maximize your solar PV system's energy output in Terra Santa, Brazil (Lat/Long -1.8975, -56.48) 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 Terra Santa, 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 Terra Santa, 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
14° South in Summer	9° North in Autumn	17° North in Winter	4° 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 Terra Santa, 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 Terra Santa, 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 Terra Santa, Brazil

Topographical Overview of Terra Santa Region

Terra Santa is situated in the northern Brazilian state of Pará, positioned along the banks of the mighty Amazon River. The terrain surrounding this municipality is characterized by the classic Amazonian lowland topography, featuring relatively flat to gently undulating landscapes that rarely exceed modest elevations above sea level. The region forms part of the expansive Amazon Basin, where the dominant geographical feature is the vast floodplain system created by centuries of river meandering and sediment deposition.

The immediate vicinity of Terra Santa displays typical várzea and terra firme landscapes. The várzea consists of seasonally flooded areas along the riverbanks, where the terrain is exceptionally flat and composed of fertile alluvial soils. These areas experience regular inundation during the Amazon's annual flood cycle, creating a dynamic landscape that shifts between exposed land and shallow water bodies throughout the year. Moving inland from the river, the terra firme represents slightly elevated ground that remains above flood levels, featuring gentle slopes and low ridges that provide natural drainage.

Dense tropical rainforest dominates the landscape, creating a thick canopy that extends across rolling hills and valley systems. The forest cover is interspersed with natural clearings, small settlements, and increasingly, areas of human-modified landscape where agriculture and cattle ranching have established footholds. Small streams and tributaries create a dendritic drainage pattern throughout the region, carving shallow valleys and creating modest topographical variation in an otherwise relatively uniform landscape.

Optimal Areas for Large-Scale Solar Development

The most promising locations for extensive solar photovoltaic installations would be found on the terra firme areas southeast and southwest of Terra Santa's urban center. These elevated zones offer several advantages, including natural drainage that prevents seasonal flooding concerns and generally stable soil conditions suitable for supporting large infrastructure projects. The slightly rolling terrain in these areas provides opportunities for optimal panel orientation while maintaining relatively straightforward construction and maintenance access.

Previously cleared agricultural lands and cattle pastures in the terra firme zones present particularly attractive opportunities for solar development. These areas have already undergone forest removal, eliminating the environmental and logistical challenges associated with clearing primary rainforest. The existing road networks that serve these agricultural areas would facilitate construction access and ongoing maintenance operations for solar installations.

Areas located approximately ten to twenty kilometers inland from the main river channels offer the best combination of stable terrain and accessibility. These locations benefit from being positioned on higher ground that avoids flood risks while remaining close enough to existing infrastructure to make grid connection feasible. The gentle slopes common in these areas can be advantageous for solar installations, as they naturally promote water drainage and can be oriented to optimize sun exposure throughout the day.

Former logging areas and secondary growth forests on terra firme terrain also represent potential development sites, particularly where the canopy has been sufficiently opened to allow adequate solar exposure. These locations often retain access roads from previous forestry operations, reducing the infrastructure investment required for solar project development. The key consideration for any large-scale solar development in this region would be selecting sites with minimal environmental impact while ensuring long-term stability and accessibility for 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.