Solar Energy Potential in Alenquer Municipality, Pará, Brazil
Alenquer Municipality in Brazil offers a promising location for solar energy production, with consistent sunlight throughout the year typical of its tropical climate. This northern Brazilian location maintains relatively stable solar energy generation potential across all seasons, though with some notable variations. The solar energy production at this location shows remarkable consistency throughout the year. During spring months, the location reaches its peak production capability with an impressive 6.28 kWh per day for each kilowatt of installed solar capacity. Winter follows as the second most productive season with 5.58 kWh/day, while summer and autumn provide similar outputs at 5.41 and 5.36 kWh/day respectively.Optimal Panel Installation
For maximizing year-round solar energy production in Alenquer, fixed solar panels should be installed at a tilt of 1 degree facing North. This nearly flat orientation is ideal because of the location's proximity to the equator, where the sun passes almost directly overhead throughout the year.Environmental Considerations
The tropical location of Alenquer presents some challenges that should be addressed during solar installation planning:- Heavy seasonal rainfall during the wet season can temporarily reduce solar efficiency and may require more frequent panel cleaning
- High humidity levels can potentially accelerate wear on electrical components if not properly protected
- Dense vegetation growth typical in tropical regions may create shading issues if not regularly maintained
Recommended Preventative Measures
To maximize solar production in this tropical environment, several preventative measures are recommended:- Install panels with high-quality waterproof sealing and corrosion-resistant mounting hardware
- Implement automated cleaning systems or regular maintenance schedules to address rainfall residue
- Use microinverters or power optimizers to minimize the impact of any partial shading
- Ensure adequate vegetation management around the installation area
- Consider slightly elevated mounting systems with good airflow to reduce humidity-related issues
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 Alenquer Municipality
Seasonal solar PV output for Latitude: -0.8549, Longitude: -54.9456 (Alenquer Municipality, 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 Alenquer Municipality, Brazil
To maximize your solar PV system's energy output in Alenquer Municipality, Brazil (Lat/Long -0.8549, -54.9456) 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 Alenquer Municipality, 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 Alenquer Municipality, 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 |
|---|---|---|---|
| 15° South in Summer | 7° North in Autumn | 16° 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 Alenquer Municipality, 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 Alenquer Municipality, Brazil.
Our calculation method
- Solar Position:
We determine the Sun's position on the Winter solstice using the location's latitude and solar declination. - Shadow Projection:
We calculate the shadow length cast by panels using trigonometry, considering panel tilt and the Sun's elevation angle. - 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 Alenquer Municipality, Brazil
The topography around Alenquer Municipality in the Brazilian state of Pará presents a diverse landscape characterized by a mix of floodplains, rolling hills, and elevated plateaus. Located in the Amazon Basin region, Alenquer sits along the lower Amazon River, approximately 701 kilometers west of Belém, the state capital. The municipality encompasses both várzea (seasonally flooded lowlands) near the Amazon River and terra firme (non-flooded uplands) as the terrain rises away from the river. The municipality's terrain generally slopes from south to north, with the southern portions featuring more elevated areas that gradually descend toward the Amazon River floodplain in the north. The elevation in Alenquer varies from near sea level along the riverbanks to approximately 150-200 meters in the higher southern regions. This topographical variation creates distinct ecological zones throughout the area.
Major Topographical Features
The northern part of Alenquer is dominated by the várzea floodplains of the Amazon River system. These areas experience seasonal flooding during the rainy season, creating a dynamic landscape that alternates between aquatic and terrestrial environments. The central and southern portions transition to terra firme, with gently rolling hills that become more pronounced as one moves further south. Several smaller rivers and streams cut through the landscape, creating natural drainage systems that flow northward toward the Amazon. These waterways have carved shallow valleys throughout the region, contributing to the undulating character of the terrain. The municipality also contains scattered lakes and wetlands, particularly in the lowland areas closer to the Amazon River.Vegetation and Land Cover
The natural vegetation of Alenquer reflects its topographical diversity. The lowland várzea areas support seasonally flooded forests and grasslands adapted to the annual inundation cycle. As the elevation increases toward the south, the vegetation transitions to more typical upland Amazonian rainforest. However, significant portions of the original forest cover have been altered by human activities, particularly cattle ranching and small-scale agriculture. The pattern of deforestation has created a mosaic landscape, with patches of forest interspersed with cleared areas used for pasture and crops. This transformation has been more extensive in the accessible lowland areas and along transportation routes, while more remote upland regions retain greater forest cover.Areas Suited for Large-Scale Solar PV
For large-scale solar photovoltaic development, the most suitable areas within and around Alenquer Municipality would be the non-flooded uplands (terra firme) that feature relatively flat or gently sloping terrain. These areas offer several advantages for solar development: The central and southern portions of the municipality, where the terrain rises into plateaus and rolling hills, provide stable ground that isn't subject to the seasonal flooding that affects the várzea lowlands. These elevated areas, particularly those that have already been cleared of forest cover for agricultural purposes, represent prime candidates for solar development. Already deforested areas used for cattle ranching or abandoned agricultural land offer opportunities for solar development without requiring additional forest clearing. These locations typically have good solar exposure and minimal shading from tall vegetation. Utilizing such previously disturbed lands would minimize the environmental impact of solar installations. Areas with proximity to existing road infrastructure and transmission lines would reduce development costs and environmental impacts associated with new access roads and power corridors. The municipality is served by several regional highways, and lands adjacent to these transportation corridors might be particularly suitable for solar development. Higher elevation areas may experience less cloud cover compared to the river valleys, potentially increasing solar radiation availability. The elevated plateaus in the southern portion of the municipality could offer advantages in this regard. It's worth noting that while the Amazon region receives substantial solar radiation throughout the year, the high humidity and seasonal cloud cover characteristic of this tropical environment may affect solar performance compared to more arid regions. Nevertheless, the substantial land availability and increasing electricity demand in the region make Alenquer's upland areas viable candidates for solar PV development, particularly as part of Brazil's efforts to diversify its energy matrix beyond hydropower.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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Article Details for Citation
Author: Aaron Robinson
Publisher: profileSOLAR.com
First Published: Sunday 29th of June 2025
Last Updated: Wednesday 23rd 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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