El Sombrero, Guárico, Venezuela presents excellent conditions for year-round solar photovoltaic energy generation. Located in the tropics at coordinates 9.3817°N, -67.0478°W, this region benefits from consistent sunlight throughout the year, with seasonal variations characterized more by wet and dry periods rather than the dramatic temperature changes seen in temperate climates.
Solar Energy Production Potential
The solar energy output data for El Sombrero demonstrates remarkably consistent performance across all seasons. Spring offers the highest production at 6.16 kWh per day per kW of installed solar capacity, followed closely by autumn at 5.99 kWh/day. Winter maintains strong output at 5.89 kWh/day, while summer produces 5.86 kWh/day per kW installed. This location is exceptionally well-suited for solar energy generation, with the variation between the best and worst performing seasons being only about 5%. Such consistency makes El Sombrero an ideal location for solar installations, as energy production remains reliable throughout the entire year. For fixed panel installations at this location, the optimal tilt angle is 9 degrees facing south. This relatively shallow angle maximizes total year-round solar production by accounting for the sun's path throughout the seasons and the area's proximity to the equator.Environmental and Weather Challenges
Despite the excellent solar potential, several local factors could impact solar energy production in El Sombrero:- Heavy rainfall during wet season: Venezuela's tropical climate brings intense rainfall periods that can reduce solar irradiance and create challenges for equipment maintenance
- High humidity levels: Persistent moisture can lead to corrosion of electrical components and mounting systems
- Dust accumulation: During dry periods, dust and particles can accumulate on solar panels, reducing their efficiency
- Tropical storms: The region may experience severe weather events that could damage solar installations
Preventative Measures for Optimal Performance
To maximize solar energy production and system longevity in El Sombrero, Guárico, several preventative measures should be implemented: Regular cleaning schedules are essential, particularly during and after the dry season when dust accumulation is most problematic. Installing panels at the optimal 9-degree tilt helps with natural rain-washing during wet periods, but manual cleaning may still be necessary. Robust mounting systems designed to withstand high winds and heavy rain loads are crucial. All electrical components should feature appropriate weatherproofing and corrosion-resistant materials suitable for tropical climates. Stainless steel or aluminum mounting hardware is preferable to prevent rust and degradation. Proper drainage around solar installations prevents water pooling that could damage foundations or create electrical hazards. Additionally, implementing monitoring systems allows for quick identification of performance issues that may arise from weather-related problems. The consistently high solar output throughout the year makes El Sombrero an excellent location for solar energy investment, provided that proper installation techniques and maintenance protocols account for the tropical climate conditions.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 El Sombrero
Seasonal solar PV output for Latitude: 9.3817, Longitude: -67.0478 (El Sombrero, 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 9° South in El Sombrero, Venezuela
To maximize your solar PV system's energy output in El Sombrero, Venezuela (Lat/Long 9.3817, -67.0478) throughout the year, you should tilt your panels at an angle of 9° 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 El Sombrero, 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 El Sombrero, Venezuela. As mentioned earlier, for fixed-panel solar PV installations, it is optimal to maintain a 9° South tilt angle throughout the year.
| Overall Best Summer Angle | Overall Best Autumn Angle | Overall Best Winter Angle | Overall Best Spring Angle |
|---|---|---|---|
| 7° 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 El Sombrero, 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 El Sombrero, 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 El Sombrero, Venezuela
Topographical Features Around El Sombrero
El Sombrero sits in the heart of Venezuela's Guárico state, positioned within the expansive Llanos region that characterizes much of the country's central plains. This area represents one of South America's most extensive flat grassland systems, stretching across vast distances with remarkably gentle terrain. The landscape around El Sombrero consists predominantly of rolling plains and savanna grasslands, with elevations that vary minimally across large areas. The immediate vicinity of El Sombrero features relatively level terrain punctuated by occasional low hills and gentle undulations typical of the Venezuelan Llanos. These plains are interspersed with seasonal wetlands and gallery forests that follow the meandering watercourses throughout the region. The Guárico River system influences much of the local topography, creating subtle variations in elevation as the land gradually slopes toward these waterways.Geological and Surface Characteristics
The underlying geology consists primarily of sedimentary formations that have created stable, well-drained soils across much of the area. These geological conditions have resulted in terrain that remains relatively firm and accessible throughout most of the year, despite the region's distinct wet and dry seasons. The surface composition varies between areas of natural grassland, cultivated agricultural land, and patches of scattered trees and shrubs. Seasonal flooding affects certain low-lying areas during the wet months, creating temporary wetlands and influencing the local microtopography. However, large portions of the surrounding landscape maintain good drainage characteristics due to the gentle but consistent slopes that direct water toward established drainage channels and rivers.Optimal Areas for Large-Scale Solar Development
The most suitable locations for extensive solar photovoltaic installations would be found on the elevated plains and gentle ridges that extend northwest and southeast of El Sombrero. These areas combine the advantages of relatively flat terrain with good natural drainage, minimizing the risk of seasonal flooding while providing stable foundations for large-scale infrastructure. The agricultural lands that surround the town often occupy some of the most topographically favorable positions, featuring level to gently sloping terrain that would require minimal grading or preparation for solar installations. These areas typically maintain good accessibility via existing rural road networks, which would facilitate both construction and ongoing maintenance operations. Areas situated on the slightly higher elevations within the local landscape would be particularly advantageous, as they remain above the seasonal flood zones while still maintaining the gentle slopes necessary for efficient solar panel orientation. The natural grassland areas on well-drained soils would also present excellent opportunities, as they typically feature consistent topography across large expanses without significant obstacles or elevation changes. The proximity to existing electrical infrastructure and transportation networks around El Sombrero would further enhance the viability of solar developments in the surrounding plains, where the combination of favorable topography and practical accessibility creates ideal conditions for large-scale renewable energy projects.Citation Guide
Article Details for Citation
Author: Aaron Robinson
Publisher: profileSOLAR.com
First Published: Thursday 31st of July 2025
Last Updated: Friday 8th of August 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.
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.




