Araure, Portuguesa, Venezuela presents an excellent location for year-round solar photovoltaic energy generation. Located in the tropical zone at coordinates 9.5763°N, -69.2318°W, this area benefits from consistent sunlight throughout the year, with seasonal variations driven more by wet and dry periods than by the dramatic changes in daylight hours experienced in temperate regions.
Solar Energy Production Performance
The solar energy output data for Araure demonstrates remarkably consistent performance across all seasons. Winter produces the highest electricity generation at 5.73 kWh per day per kW of installed solar capacity, followed closely by autumn at 5.66 kWh/day per kW. Spring generates 5.33 kWh/day per kW, while summer produces 5.09 kWh/day per kW. This seasonal pattern is typical for locations near the equator, where the sun's angle varies less dramatically throughout the year. The slightly higher production during winter and autumn months occurs because the sun's position becomes more favorable for solar panels installed at the optimal fixed angle.Optimal Panel Installation
For maximum year-round energy production at Araure, Portuguesa, solar panels should be installed at a fixed tilt angle of 10 degrees facing south. This angle has been calculated to optimize total annual solar output by accounting for the sun's varying elevation angles throughout the year, weighted by the actual solar irradiance potential at this specific latitude.Environmental and Weather Challenges
Several local factors could potentially impact solar energy production in Araure and require consideration during installation:- Tropical rainfall and wet seasons: Heavy rains during wet periods can reduce solar output due to cloud cover and may cause water accumulation on panels
- High humidity levels: Persistent moisture can lead to corrosion of electrical components and reduced panel efficiency over time
- Dust and particulate matter: Dry season conditions can result in dust buildup on panel surfaces, reducing light transmission
- Intense tropical heat: High ambient temperatures can decrease panel efficiency and stress electrical components
Preventative Measures for Optimal Performance
To maximize solar energy production despite these environmental challenges, several installation strategies should be implemented:- Proper drainage systems: Install panels with adequate spacing and angling to prevent water pooling and ensure quick runoff during heavy rains
- Corrosion-resistant materials: Use marine-grade or tropical-rated mounting hardware, wiring, and junction boxes designed to withstand high humidity environments
- Regular cleaning protocols: Establish maintenance schedules for panel cleaning, particularly during dry seasons when dust accumulation is highest
- Enhanced ventilation: Mount panels with sufficient air gap beneath to promote cooling and reduce heat-related efficiency losses
- Quality inverters with thermal management: Select inverters specifically rated for tropical conditions with robust cooling systems
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 83 locations across Venezuela. This analysis provides insights into each city/location's potential for harnessing solar energy through PV installations.
Link: Solar PV potential in Venezuela by location
Solar output per kW of installed solar PV by season in Araure
Seasonal solar PV output for Latitude: 9.5763, Longitude: -69.2318 (Araure, Venezuela), 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 10° South in Araure, Venezuela
To maximize your solar PV system's energy output in Araure, Venezuela (Lat/Long 9.5763, -69.2318) throughout the year, you should tilt your panels at an angle of 10° South 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 Araure, Venezuela
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 Araure, Venezuela. As mentioned earlier, for fixed-panel solar PV installations, it is optimal to maintain a 10° South tilt angle throughout the year.
| Overall Best Summer Angle | Overall Best Autumn Angle | Overall Best Winter Angle | Overall Best Spring Angle |
|---|---|---|---|
| 6° North in Summer | 15° South in Autumn | 25° South in Winter | 3° 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 Araure, Venezuela
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 Araure, Venezuela.
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 Araure, Venezuela
Topographical Features of the Araure Region
Araure sits within the expansive Llanos plains of Venezuela, a vast tropical grassland region that stretches across much of the country's central territory. This area is characterized by remarkably flat terrain with gentle undulations that create an almost table-like landscape. The elevation around Araure remains consistently low, typically ranging between 150 to 200 meters above sea level, with minimal variation across the surrounding countryside.
The topography consists primarily of sedimentary deposits that have been shaped by centuries of river activity and seasonal flooding patterns. Rolling grasslands dominate the landscape, punctuated by scattered gallery forests along watercourses and occasional isolated hills called "mesas" that rise modestly above the surrounding plains. These elevated features are remnants of more resistant geological formations that have withstood erosion over time.
The region experiences distinct wet and dry seasons, which have profoundly influenced the local topography. During the rainy season, much of the lower-lying areas become seasonally flooded, creating temporary wetlands and affecting soil composition. The dry season reveals expansive grasslands with firm, well-drained soils that have developed over millennia of alternating wet and dry conditions.
Drainage Patterns and Water Features
The area around Araure is drained by several meandering rivers and streams that flow generally northward toward the Caribbean coast. These waterways have created subtle valleys and slight depressions in the otherwise uniform landscape. The Rio Acarigua and its tributaries form the primary drainage network, with their floodplains creating narrow corridors of slightly lower elevation.
Small seasonal ponds and wetlands, known locally as "morichales," dot the landscape, particularly in areas where the water table approaches the surface. These features typically occur in natural depressions and support distinctive palm groves that stand out against the surrounding grasslands.
Optimal Areas for Large-Scale Solar Development
The remarkably flat topography of the Llanos makes the Araure region exceptionally well-suited for large-scale solar photovoltaic installations. The most favorable areas for solar development are the elevated grassland plateaus that remain above seasonal flood levels. These areas offer stable, well-drained foundations with minimal grading requirements, significantly reducing construction costs and complexity.
The slight elevations and mesas scattered throughout the region present particularly attractive sites for solar farms. These raised areas provide excellent drainage, reduce the risk of equipment damage from seasonal flooding, and often offer unobstructed exposure to sunlight throughout the day. The gentle slopes of these elevated areas, typically ranging from one to three degrees, are ideal for solar panel installations as they facilitate natural drainage while maintaining optimal orientation.
Areas located away from the immediate floodplains of major rivers offer the most stable conditions for long-term solar installations. The firm, clay-rich soils found on these higher elevations provide solid foundations for mounting systems while remaining accessible for construction and maintenance activities throughout the year.
The expansive nature of the grasslands means that large contiguous areas are available for development without significant topographical obstacles. This allows for efficient layout designs and economies of scale that are essential for utility-scale solar projects. The absence of significant hills, valleys, or other terrain features that could create shading issues makes much of the region suitable for solar development.
Citation Guide
Article Details for Citation
Author: Aaron Robinson
Publisher: profileSOLAR.com
First Published: Tuesday 22nd of July 2025
Last Updated: Thursday 7th of August 2025
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Calculate Your Optimal Solar Panel Tilt Angle: A Comprehensive Guide
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