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Flag of EcuadorSolar PV Analysis of Ventanas, Ecuador

Graph of hourly avg kWh electricity output per kW of Solar PV installed in Ventanas, Ecuador (by season)

Ventanas, Los Ríos, Ecuador presents an excellent location for year-round solar energy generation. Located in the tropics at coordinates -1.4428, -79.4627, this area benefits from consistent sunlight throughout most of the year, with seasons typically defined by wet and dry periods rather than temperature variations.

Solar Energy Production Potential

The solar energy output at Ventanas shows strong performance across all seasons. Spring delivers the highest production at 4.39 kWh per day per kW of installed solar capacity, closely followed by autumn at 4.37 kWh per day. Summer provides solid output at 4.03 kWh per day, while winter shows the lowest but still respectable generation at 3.78 kWh per day. The best times for solar generation at this location are spring and autumn, when atmospheric conditions and sun angles combine to optimize energy production. Even during the lowest-producing winter months, the output remains quite strong compared to many other global locations.

Optimal Panel Configuration

For fixed panel installations at Ventanas, Los Ríos, the ideal tilt angle to maximize total year-round solar production is just 1 degree facing north. This nearly flat configuration takes advantage of the location's proximity to the equator, where the sun passes almost directly overhead throughout the year.

Environmental and Weather Challenges

Several local factors could potentially impact solar production in Ventanas:
  • High humidity and frequent rainfall during wet seasons can reduce solar irradiance and create moisture-related equipment issues
  • Salt air corrosion from the coastal proximity may affect panel frames and mounting systems
  • Dust and debris accumulation during dry periods can reduce panel efficiency
  • Occasional volcanic ash from regional volcanic activity could coat panels and significantly reduce output

Preventative Measures for Optimal Performance

To ensure maximum energy production despite these challenges, several installation strategies should be implemented. Choose marine-grade aluminum frames and stainless steel mounting hardware specifically designed to resist salt corrosion. Apply anti-corrosive coatings to all metal components and ensure proper grounding systems are installed. Implement regular cleaning schedules, particularly during dry seasons and after any volcanic activity in the region. Install monitoring systems that can detect drops in production efficiency, allowing for prompt maintenance responses. Consider automated cleaning systems or easy-access designs that facilitate manual cleaning. Ensure proper drainage around panel installations to prevent water accumulation during heavy rains. Use high-quality sealing materials for all electrical connections to prevent moisture infiltration. Position panels with adequate spacing to allow air circulation, which helps reduce humidity-related issues and keeps panels cooler for better efficiency. Despite these environmental considerations, Ventanas remains a highly favorable location for solar energy generation, with its consistent tropical sunlight providing reliable year-round production potential.

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 108 locations across Ecuador. This analysis provides insights into each city/location's potential for harnessing solar energy through PV installations.

Link: Solar PV potential in Ecuador by location

Solar output per kW of installed solar PV by season in Ventanas

Seasonal solar PV output for Latitude: -1.4428, Longitude: -79.4627 (Ventanas, Ecuador), 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:

Summer
Average 4.03kWh/day in Summer.
Autumn
Average 4.37kWh/day in Autumn.
Winter
Average 3.78kWh/day in Winter.
Spring
Average 4.39kWh/day in Spring.

 

Ideally tilt fixed solar panels 1° North in Ventanas, Ecuador

To maximize your solar PV system's energy output in Ventanas, Ecuador (Lat/Long -1.4428, -79.4627) 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.

The sun
At Latitude: -1.4428, Longitude: -79.4627, the ideal angle to tilt panels is 1° North

Seasonally adjusted solar panel tilt angles for Ventanas, Ecuador

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 Ventanas, Ecuador. 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
14° South in Summer 7° North in Autumn 17° North in Winter 5° South in Spring

Assuming you can modify the tilt angle of your solar PV panels throughout the year, you can optimize your solar generation in Ventanas, Ecuador as follows: In Summer, set the angle of your panels to 14° facing South. In Autumn, tilt panels to 7° facing North for maximum generation. During Winter, adjust your solar panels to a 17° angle towards the North for optimal energy production. Lastly, in Spring, position your panels at a 5° angle facing South to capture the most solar energy in Ventanas, Ecuador.

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 Ventanas, Ecuador

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 Ventanas, Ecuador.

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.






Please enter information above to calculate panel spacing.

Topography for solar PV around Ventanas, Ecuador

Topographical Features Around Ventanas

Ventanas is situated in the coastal lowlands of Ecuador's Los Ríos Province, positioned within the expansive Guayas River basin. The terrain in this region is predominantly flat to gently undulating, characterized by fertile alluvial plains that have been shaped by centuries of river sediment deposition. The elevation around Ventanas typically ranges from 20 to 80 meters above sea level, creating a relatively uniform landscape with minimal dramatic elevation changes.

The area forms part of Ecuador's coastal plain, which extends inland from the Pacific Ocean and gradually transitions into the foothills of the Andes Mountains further east. This positioning places Ventanas in a transitional zone between the true coastal lowlands and the beginning of the Andean piedmont. The topography is dominated by agricultural lands, with extensive rice paddies, banana plantations, and cattle pastures taking advantage of the flat terrain and rich soils.

Several rivers and waterways traverse the region, including tributaries of the Guayas River system. These water bodies have created a network of gentle valleys and slight ridges throughout the landscape. The terrain is generally well-drained despite the presence of these waterways, though some areas may experience seasonal flooding during heavy rainfall periods.

Optimal Areas for Large-Scale Solar Development

The flat to gently rolling topography around Ventanas presents excellent opportunities for large-scale solar photovoltaic installations. The most suitable areas would be the elevated plateaus and gentle ridges that rise slightly above the surrounding agricultural plains. These locations offer several advantages, including natural drainage, reduced risk of flooding, and minimal grading requirements for solar panel installation.

Areas to the north and northeast of Ventanas appear particularly promising, where the terrain begins its gradual rise toward the Andean foothills. These zones typically feature stable soils and good accessibility while maintaining the relatively flat characteristics essential for efficient solar array deployment. The slightly elevated positions also provide better air circulation, which can help with panel cooling and maintenance access.

The western approaches to Ventanas, extending toward the true coastal plains, also offer substantial potential for solar development. These areas benefit from consistent topographical conditions and are generally less prone to the seasonal water level fluctuations that can affect lower-lying agricultural zones. The terrain in these western sectors tends to be well-consolidated and suitable for supporting the infrastructure requirements of large solar installations.

Agricultural transition zones, where current farming activities are less intensive, represent prime candidates for solar development. These areas often feature the ideal combination of flat terrain, established road access, and proximity to existing electrical infrastructure. The gentle slopes in these regions, typically ranging from 1 to 3 degrees, are optimal for solar panel orientation while ensuring adequate drainage and minimizing soil erosion concerns.

Citation Guide

Article Details for Citation

Article: Solar PV Analysis of Ventanas, Ecuador
Author: Aaron Robinson
Publisher: profileSOLAR.com
First Published: Monday 30th of June 2025
Last Updated: Tuesday 5th of August 2025

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