El Tocuyo, Lara, Venezuela represents an excellent location for year-round solar photovoltaic energy generation. This tropical location benefits from consistent sunlight throughout the year, with solar energy output varying relatively little between seasons compared to locations at higher latitudes.
Solar Energy Output Performance
The solar energy production data shows that El Tocuyo delivers strong and consistent performance across all seasons. Winter months provide the highest output at 5.73 kWh per day per kW of installed solar capacity, followed closely by autumn at 5.66 kWh/day. Spring generates 5.33 kWh/day, while summer produces 5.09 kWh/day per kW installed. This seasonal pattern is typical for tropical locations, where the sun's angle changes less dramatically throughout the year compared to temperate regions. The slightly lower summer output may be attributed to increased atmospheric moisture and cloud cover during warmer months, while the peak winter performance takes advantage of clearer, drier conditions. For optimal year-round energy production, solar panels at El Tocuyo should be installed at a fixed tilt angle of 10 degrees facing south. This relatively shallow angle maximizes total annual solar collection by accounting for the location's proximity to the equator and the sun's path throughout the year.Environmental and Weather Factors
Several environmental factors in El Tocuyo could potentially impact solar energy production and should be considered during installation planning. Tropical Weather Patterns: The region experiences distinct wet and dry seasons typical of tropical climates. During wet seasons, increased cloud cover and frequent rainfall can temporarily reduce solar output, though the consistent solar data suggests these impacts are manageable over the course of a full year. High Humidity and Heat: Tropical locations often experience high humidity levels and elevated temperatures, which can affect solar panel efficiency. Solar panels typically lose efficiency as temperatures rise above optimal operating conditions, and high humidity can contribute to faster degradation of electrical components if not properly protected. Dust and Particulate Matter: Venezuela's climate and geography can lead to dust accumulation on solar panels, particularly during dry seasons. Dust buildup reduces the amount of sunlight reaching the photovoltaic cells, directly impacting energy production.Preventative Measures for Optimal Performance
To maximize solar energy production in El Tocuyo's tropical environment, several installation strategies should be implemented:- Install panels with adequate ventilation spacing underneath to promote air circulation and reduce operating temperatures
- Use high-quality mounting systems with corrosion-resistant materials suitable for humid tropical conditions
- Implement regular cleaning schedules to remove dust, debris, and any organic matter that may accumulate on panel surfaces
- Choose solar panels and inverters specifically rated for high-temperature operation and tropical climate conditions
- Ensure all electrical connections and junction boxes have proper weatherproofing and moisture protection
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 Tocuyo
Seasonal solar PV output for Latitude: 9.7838, Longitude: -69.7849 (El Tocuyo, 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 El Tocuyo, Venezuela
To maximize your solar PV system's energy output in El Tocuyo, Venezuela (Lat/Long 9.7838, -69.7849) 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 El Tocuyo, 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 Tocuyo, 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 | 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 El Tocuyo, 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 Tocuyo, 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 Tocuyo, Venezuela
Topographical Features of the El Tocuyo Region
El Tocuyo sits in the northwestern region of Venezuela within Lara State, positioned in a transitional zone between the coastal mountain ranges and the vast plains that extend toward the interior of the country. The immediate area around El Tocuyo is characterized by rolling hills and moderate elevation changes, with the town itself located at approximately 630 meters above sea level. This elevation provides the region with a more temperate climate compared to the lowland areas while avoiding the extreme altitudes found in the nearby Andes. The landscape around El Tocuyo features a mix of gentle slopes, valley floors, and scattered higher ground that creates natural drainage patterns flowing toward the Tocuyo River system. The terrain is generally stable with good geological foundations, consisting primarily of sedimentary formations that have weathered into relatively level surfaces interspersed with low ridges and shallow depressions. To the south and east of El Tocuyo, the topography becomes increasingly flat as it transitions into the northern edges of the Llanos, Venezuela's extensive central plains. These areas feature minimal elevation changes and broad, open expanses that extend for considerable distances. The western approaches to the town show more pronounced hill formations as the landscape begins its gradual rise toward the Cordillera de Mérida mountain system.Optimal Areas for Large-Scale Solar Development
The most suitable locations for extensive solar photovoltaic installations lie primarily to the southeast of El Tocuyo, where the terrain flattens into the northern reaches of the Llanos plains. These areas offer several advantages for solar development, including vast expanses of relatively level ground that would minimize grading and construction costs while maximizing the efficient placement of solar arrays. The valley floors and gentle slopes within a 20-30 kilometer radius of El Tocuyo present excellent opportunities for solar farms. These locations benefit from stable geological conditions, minimal vegetation coverage in many areas, and terrain that naturally drains well during seasonal rainfall periods. The moderate elevation of these sites also provides favorable atmospheric conditions while maintaining accessibility for construction and maintenance activities. Areas with slight southern-facing slopes in the region would be particularly advantageous for solar installations, as they would naturally optimize panel orientation without requiring complex tracking systems. The relatively open landscape means that shading from surrounding topographical features would be minimal, allowing for consistent solar exposure throughout the day. The eastern approaches to El Tocuyo, where the landscape transitions toward the broader plains, offer perhaps the greatest potential for large-scale development. These areas combine the benefits of level terrain with proximity to existing infrastructure while providing ample space for extensive solar arrays that could serve both local and regional energy needs.Citation Guide
Article Details for Citation
Author: Aaron Robinson
Publisher: profileSOLAR.com
First Published: Friday 15th of August 2025
Last Updated: Friday 15th of August 2025
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.




