San Fernando de Apure, Venezuela represents an excellent location for year-round solar PV energy generation. Located in the tropics at coordinates 7.8998°N, -67.4674°W, this area benefits from consistent sunlight throughout most of the year, with seasons characterized more by wet and dry periods rather than dramatic temperature variations.

Solar Energy Output Performance

The solar energy production data shows remarkably consistent performance across all seasons. Summer produces 5.42 kWh per day per kW of installed solar capacity, while the other three seasons show even stronger performance: Autumn generates 6.10 kWh/day, Winter produces 6.06 kWh/day, and Spring yields 6.03 kWh/day per kW installed. This pattern indicates that the location experiences its peak solar generation during the autumn, winter, and spring months, with only a modest reduction during summer. The difference between the highest and lowest performing seasons is less than 0.7 kWh per day per kW, demonstrating exceptional year-round reliability for solar energy production.

Optimal Panel Configuration

For maximum year-round solar energy production at San Fernando de Apure, fixed solar panels should be tilted at 8 degrees toward the south. This optimal angle is calculated by analyzing daily solar elevation angles, determining optimal panel tilt for each day, and weighting these angles based on solar irradiance data while accounting for Earth's elliptical orbit.

Environmental and Weather Challenges

Several significant factors in this tropical location can impact solar energy production and require careful consideration during installation:

Humidity and Moisture

The tropical climate brings high humidity levels year-round, which can lead to moisture infiltration in electrical components and connections. This can cause corrosion, reduced efficiency, and premature equipment failure. To combat this, installers should use marine-grade wiring and connections, ensure proper sealing of all electrical enclosures, and select inverters and other equipment specifically rated for high-humidity environments.

Heavy Rainfall During Wet Season

The wet season can bring intense rainfall that may cause several issues. Heavy rain can reduce solar production during storms, create drainage problems around ground-mounted systems, and potentially cause flooding. Proper installation should include elevated mounting systems where appropriate, comprehensive drainage planning around solar installations, and robust waterproofing of all electrical components.

Dust and Particulate Accumulation

During dry periods, dust and airborne particles can accumulate on solar panels, significantly reducing their efficiency. This is particularly problematic in areas with agricultural activity or unpaved roads nearby. Regular cleaning schedules should be established, and consideration should be given to installing automated cleaning systems for larger installations. Panel mounting should allow easy access for maintenance.

High Temperatures

Tropical heat can reduce solar panel efficiency and stress electrical components. While solar panels produce electricity from sunlight, excessive heat actually decreases their performance. Proper installation should ensure adequate air circulation beneath panels, use mounting systems that promote cooling, and select equipment rated for high-temperature operation.

Vegetation Growth

The tropical climate promotes rapid plant growth, which can create shading issues and access problems for maintenance. Regular vegetation management around solar installations is essential, and initial site preparation should include consideration of future plant growth patterns.

Preventative Installation Measures

To maximize energy production despite these challenges, several preventative measures should be implemented:

• Use corrosion-resistant mounting hardware and marine-grade electrical components
• Install proper drainage systems and elevate equipment above potential flood levels
• Design mounting systems with adequate spacing for air circulation and cooling
• Establish regular cleaning and maintenance schedules
• Plan for vegetation management and ensure clear access paths
• Select equipment specifically rated for tropical climate conditions

Despite these environmental challenges, San Fernando de Apure's consistent solar energy output throughout the year makes it a highly suitable location for solar PV installations. With proper planning and installation techniques that address the tropical climate conditions, solar energy systems can operate effectively and provide reliable renewable energy generation year-round.

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 San Fernando De Apure

Seasonal solar PV output for Latitude: 7.8998, Longitude: -67.4674 (San Fernando De Apure, 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 8° South in San Fernando De Apure, Venezuela

To maximize your solar PV system's energy output in San Fernando De Apure, Venezuela (Lat/Long 7.8998, -67.4674) throughout the year, you should tilt your panels at an angle of 8° 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 San Fernando De Apure, 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 San Fernando De Apure, Venezuela. As mentioned earlier, for fixed-panel solar PV installations, it is optimal to maintain a 8° South tilt angle throughout the year.

Overall Best Summer Angle	Overall Best Autumn Angle	Overall Best Winter Angle	Overall Best Spring Angle
8° North in Summer	14° South in Autumn	23° South in Winter	2° 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 San Fernando De Apure, 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 San Fernando De Apure, Venezuela.

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 San Fernando De Apure, Venezuela

Topographical Features of San Fernando de Apure

San Fernando de Apure sits in the heart of Venezuela's vast Llanos region, a sprawling tropical grassland plain that extends across much of the country's central territory. The city is positioned at the confluence of the Apure and Portuguesa rivers, placing it within one of South America's most extensive flat landscapes. This area forms part of the Orinoco River basin, where the terrain is characterized by extremely gentle gradients and minimal elevation changes across enormous distances. The surrounding topography consists primarily of seasonally flooded plains, known locally as llanos inundables, which stretch toward the horizon in all directions. These plains are punctuated by scattered low hills called galeras, though these rarely exceed 50 meters in height above the surrounding flatlands. The landscape is dominated by natural savannas interspersed with gallery forests along watercourses and occasional patches of palm groves, particularly the distinctive moriche palms that thrive in the region's wet-dry climate cycle.

Drainage Patterns and Seasonal Flooding

The region experiences dramatic seasonal variations in water levels due to the tropical climate's distinct wet and dry periods. During the rainy season, vast areas of the llanos become temporarily inundated, creating an intricate network of temporary lakes, marshes, and wetlands. The Apure River system, along with numerous smaller tributaries and seasonal streams called caños, creates a complex drainage pattern that significantly influences land use possibilities throughout the year. Much of the land around San Fernando de Apure consists of alluvial deposits left by countless years of seasonal flooding. These deposits have created remarkably flat terrain with subtle undulations that become apparent only during flood seasons when water follows ancient drainage channels. The soil composition varies from sandy loams on slightly elevated areas to clay-rich deposits in lower-lying zones that retain water longer during dry periods.

Optimal Areas for Large-Scale Solar Development

The most suitable locations for extensive solar photovoltaic installations would be found on the slightly elevated interfluves - the areas between major drainage channels that remain above flood levels year-round. These zones, while still extremely flat by most standards, provide sufficient elevation to avoid seasonal inundation while maintaining the level terrain ideal for large solar arrays. Areas located 10 to 30 kilometers northeast and southwest of San Fernando de Apure offer particularly promising conditions for solar development. These locations benefit from being positioned on stable ground that experiences minimal flooding, while remaining accessible via existing transportation infrastructure. The terrain in these areas consists of well-drained sandy soils overlying stable substrates, providing excellent foundation conditions for solar mounting systems. The grassland areas that have been historically used for cattle ranching represent ideal candidates for solar farm development, as they are already cleared of forest cover and have established access routes. These locations typically feature gentle slopes of less than one percent grade, which facilitates both construction activities and optimal panel positioning for maximum solar exposure throughout the day.

Geographic Advantages for Solar Infrastructure

The region's position within the Llanos provides several geographic advantages for large-scale solar development. The absence of significant topographical barriers means that prevailing wind patterns flow unobstructed across the landscape, providing natural cooling effects that can improve solar panel efficiency. Additionally, the lack of nearby mountains or hills eliminates concerns about shadow casting from terrain features during different seasons. Areas situated along the higher ground near existing roads and transmission corridors would be particularly well-suited for solar development, as they combine favorable topographical conditions with practical infrastructure access. The relatively stable geology of the region, consisting primarily of sedimentary deposits over ancient crystalline basement rock, provides adequate bearing capacity for solar installation foundations while minimizing concerns about ground settlement or instability.

Citation Guide

Article Details for Citation

Tell Us About Your Work

We love seeing how our research helps others! If you've cited this article in your work, we'd be delighted to hear about it. Drop us a line via our Contact Us page or on X, to share where you've used our information - we may feature a link to your work on our site. This helps create a network of valuable resources for others in the solar energy community and helps us understand how our research is contributing to the field. Plus, we occasionally highlight exceptional works that reference our research on our social media channels.

Feeling generous?

Share this with your friends!

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.