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Flag of EcuadorSolar PV Analysis of Pasaje, Ecuador

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

Solar Energy Potential in Pasaje, El Oro, Ecuador

Pasaje, El Oro, Ecuador, situated at latitude -3.3299 and longitude -79.8152, offers remarkably consistent solar energy generation potential throughout the year. This tropical location benefits from steady sunlight patterns with minimal seasonal variation in solar output. The solar electricity generation at this location shows impressive consistency across all seasons. Spring yields the highest production at 4.66 kWh per day for each kilowatt of installed solar capacity. This is followed by autumn with 4.34 kWh/day, winter with 4.30 kWh/day, and summer with 4.26 kWh/day per installed kilowatt. This minimal seasonal variation (less than 10% difference between the highest and lowest producing seasons) makes Pasaje an excellent location for year-round solar energy production. For fixed solar panel installations in Pasaje, El Oro, the ideal tilt angle to maximize total annual energy production is 3 degrees facing North. This slight tilt optimizes the capture of sunlight throughout the year, accounting for the location's proximity to the equator and the sun's position in the sky as it changes through the seasons.

Environmental and Weather Considerations

Several environmental factors could potentially impact solar production in Pasaje:
  • High humidity and frequent rainfall during the wet season (typically December to May) may reduce panel efficiency and increase the need for maintenance.
  • Dust accumulation during the dry season can diminish panel performance if not regularly cleaned.
  • Potential cloud cover during parts of the wet season could temporarily reduce daily output.
To mitigate these challenges, solar installations in Pasaje should incorporate several preventative measures. Self-cleaning panel technologies or regular maintenance schedules can address dust and debris accumulation. Installing panels at the recommended 3-degree tilt helps with natural cleaning during rainfall. Additionally, using high-quality panels with good performance in diffuse light conditions can maximize energy capture during cloudier periods. The minimal seasonal variation in solar output makes Pasaje an ideal location for solar power without the need for significant seasonal adjustments to energy usage patterns or storage requirements. With proper installation and maintenance, solar energy systems in this location can provide reliable power throughout the year.

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 Pasaje

Seasonal solar PV output for Latitude: -3.3299, Longitude: -79.8152 (Pasaje, 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 4.26kWh/day in Summer.
Autumn
Average 4.34kWh/day in Autumn.
Winter
Average 4.30kWh/day in Winter.
Spring
Average 4.66kWh/day in Spring.

 

Ideally tilt fixed solar panels 3° North in Pasaje, Ecuador

To maximize your solar PV system's energy output in Pasaje, Ecuador (Lat/Long -3.3299, -79.8152) throughout the year, you should tilt your panels at an angle of 3° 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: -3.3299, Longitude: -79.8152, the ideal angle to tilt panels is 3° North

Seasonally adjusted solar panel tilt angles for Pasaje, 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 Pasaje, Ecuador. As mentioned earlier, for fixed-panel solar PV installations, it is optimal to maintain a 3° North tilt angle throughout the year.

Overall Best Summer Angle Overall Best Autumn Angle Overall Best Winter Angle Overall Best Spring Angle
12° South in Summer 10° North in Autumn 19° North in Winter 3° 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 Pasaje, Ecuador as follows: In Summer, set the angle of your panels to 12° facing South. In Autumn, tilt panels to 10° facing North for maximum generation. During Winter, adjust your solar panels to a 19° angle towards the North for optimal energy production. Lastly, in Spring, position your panels at a 3° angle facing South to capture the most solar energy in Pasaje, 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 Pasaje, 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 Pasaje, 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 Pasaje, Ecuador

The topography around Pasaje, Ecuador presents a diverse landscape characterized by the transition from coastal lowlands to the foothills of the Andes Mountains. Situated in El Oro Province in southwestern Ecuador, Pasaje lies approximately 15 kilometers inland from the Gulf of Guayaquil, nestled in a valley with elevations ranging from about 20 to 100 meters above sea level within the immediate vicinity of the town.

Surrounding Landscape Features

Moving eastward from Pasaje, the terrain gradually rises toward the Andean foothills, with increasingly steep slopes and higher elevations. This transitional zone features numerous small valleys, rolling hills, and plateaus. The western side of Pasaje opens to more level terrain that eventually reaches the coastal plains near Machala and the Pacific Ocean. The area is crossed by several rivers, most notably the Jubones River system, which has shaped much of the local topography through erosion, creating fertile valleys surrounded by higher terrain. These waterways have carved distinct valleys and floodplains that interrupt the otherwise gradually rising landscape.

Vegetation and Land Cover

The natural vegetation around Pasaje varies with elevation and human development patterns. Lower elevations feature tropical dry forest ecosystems, though much of the original vegetation has been modified for agriculture, particularly banana plantations, cacao farms, and other tropical crops that dominate the landscape. Higher elevations to the east retain more natural vegetation, with increasing forest cover as one moves toward the Andean slopes. These areas typically receive more precipitation than the lower coastal regions, supporting denser vegetation.

Optimal Areas for Solar PV Development

For large-scale solar photovoltaic development, the most suitable areas near Pasaje would be the gently sloping or flat terrains that are abundant to the west and southwest of the town. These areas offer several advantages: The relatively flat agricultural plains between Pasaje and Machala provide extensive open spaces with minimal shading concerns from topographical features. These locations typically have good exposure to solar radiation throughout the day due to the lack of significant mountain shadows. Elevated plateaus and gentle hills to the north and northeast of Pasaje also present favorable conditions, as they often rise above morning fog that can sometimes affect lower-lying areas. These slightly elevated positions can experience reduced atmospheric interference. Areas to avoid would include the steeper eastern slopes that rise toward the Andes, where terrain irregularity creates challenges for large installations and where cloud formation is more frequent due to orographic lifting. Similarly, the immediate river valleys, particularly along the Jubones River, are less suitable due to potential flooding concerns and valuable agricultural land use.

Accessibility Considerations

The region benefits from reasonable infrastructure, with the main highway E25 running north-south near Pasaje, and several secondary roads providing access to potential development sites. This existing transportation network would facilitate construction and maintenance of solar facilities. The proximity to population centers like Machala (approximately 30 kilometers southwest) provides advantages for power distribution, as existing transmission infrastructure could potentially be leveraged for new solar developments.

Climate Factors Affecting Site Selection

While the region generally experiences favorable conditions for solar energy capture, microclimatic variations do exist. The coastal influence diminishes as one moves eastward from Pasaje, with areas closer to the mountains experiencing different precipitation patterns that might affect solar panel efficiency and maintenance requirements. The most promising locations combine good solar exposure with minimal cloud cover, adequate drainage, and reasonable distance from areas with high ecological value or prime agricultural importance. These conditions are most consistently found in the transitional zones between the coastal plains and the first significant rises of terrain to the east of Pasaje.

Citation Guide

Article Details for Citation

Article: Solar PV Analysis of Pasaje, Ecuador
Author: Aaron Robinson
Publisher: profileSOLAR.com
First Published: Sunday 29th of June 2025
Last Updated: Saturday 26th of July 2025

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Compare this location to others worldwide for solar PV potential

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