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Flag of EcuadorSolar PV Analysis of Huaquillas, Ecuador

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

Solar Energy Potential in Huaquillas, El Oro, Ecuador

Huaquillas, El Oro, Ecuador, situated at the Ecuador-Peru border, offers promising conditions for solar energy generation. Located in the tropics, this region experiences relatively consistent sunlight throughout the year, making it potentially suitable for solar photovoltaic (PV) installations. The seasonal solar energy production data reveals a fairly steady output across the year. During summer months, solar panels can generate approximately 5.72 kWh per day for each kilowatt of installed capacity. Autumn maintains strong production at 5.60 kWh/day, while spring delivers 5.47 kWh/day per installed kilowatt. Winter shows the lowest output at 4.79 kWh/day, but still provides reasonable generation potential. For maximizing year-round solar production in Huaquillas, El Oro, fixed solar panels should be installed at a tilt angle of 3 degrees North. This specific angle has been calculated to optimize annual energy capture based on the location's proximity to the equator and seasonal sun paths.

Optimal Periods for Solar Generation

The summer months represent the peak period for solar energy production in Huaquillas, El Oro, with autumn following closely behind. While there is some seasonal variation, the difference between the highest and lowest producing seasons is less dramatic than in locations farther from the equator. This relative consistency makes Huaquillas suitable for year-round solar energy applications. Spring represents the third-best season for solar generation, while winter months show approximately 16% lower output compared to summer peaks. However, even during this "lower" production period, the solar resource remains substantial enough to support reliable energy generation.

Environmental and Weather Considerations

Several factors could potentially impact solar production in Huaquillas:
  • Coastal proximity may introduce salt spray and humidity that can degrade solar equipment over time, requiring marine-grade components and regular maintenance.
  • The region experiences a dry and wet season pattern, with increased cloud cover during the rainy season potentially reducing solar output.
  • Dust accumulation can be significant in this semi-arid border region, necessitating regular panel cleaning.
To mitigate these challenges, solar installations should incorporate corrosion-resistant mounting hardware, encapsulated junction boxes, and potentially automated cleaning systems. Elevating panels slightly higher than standard installations can reduce dust accumulation, while implementing a consistent maintenance schedule during the dry season will optimize performance. The relatively consistent year-round solar resource makes Huaquillas an attractive location for solar PV development, with only modest seasonal variations to consider in system design and energy planning.

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 Huaquillas

Seasonal solar PV output for Latitude: -3.4809, Longitude: -80.2365 (Huaquillas, 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 5.72kWh/day in Summer.
Autumn
Average 5.60kWh/day in Autumn.
Winter
Average 4.79kWh/day in Winter.
Spring
Average 5.47kWh/day in Spring.

 

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

To maximize your solar PV system's energy output in Huaquillas, Ecuador (Lat/Long -3.4809, -80.2365) 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: -3.4809, Longitude: -80.2365, the ideal angle to tilt panels is 3° North

Seasonally adjusted solar panel tilt angles for Huaquillas, 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 Huaquillas, 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 9° 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 Huaquillas, Ecuador as follows: In Summer, set the angle of your panels to 12° facing South. In Autumn, tilt panels to 9° 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 Huaquillas, 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 Huaquillas, 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 Huaquillas, 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 Huaquillas, Ecuador

The topography around Huaquillas, Ecuador presents a fascinating transition between coastal lowlands and the beginning of more elevated terrain. Located near the border with Peru in El Oro Province, Huaquillas sits in an area characterized by relatively flat coastal plains that gradually rise eastward toward the foothills of the Andes Mountains. The immediate vicinity of Huaquillas features predominantly level terrain, with elevations typically below 50 meters above sea level. This coastal zone includes some wetland areas, particularly toward the west where the Santa Rosa estuary system creates a complex network of tidal channels. The soil composition in this region tends to be alluvial, deposited over centuries by river systems flowing westward toward the Pacific Ocean.

Surrounding Landscape Features

Moving slightly inland from Huaquillas, the landscape begins to show more variation. To the northeast, the terrain gradually increases in elevation, forming rolling hills that serve as the first steps of the transition zone between coastal Ecuador and the mountainous interior. These hills rarely exceed 200-300 meters in height but provide a distinct contrast to the flatlands closer to the coast. The area experiences a semi-arid climate, which has shaped the natural vegetation into primarily dry tropical forest and scrubland. This vegetation becomes sparser in some sections, particularly in areas that have experienced significant human modification through agriculture and urban development. Several seasonal waterways cross the region, including the Zarumilla River which forms part of the border between Ecuador and Peru. These waterways have carved shallow valleys into the landscape, creating natural divisions in the topography.

Optimal Areas for Solar PV Development

For large-scale solar photovoltaic development, several areas near Huaquillas offer promising conditions. The most suitable locations would be found in the gently elevated plains to the east and northeast of Huaquillas. These areas benefit from several advantageous characteristics: The slightly elevated terrain (50-150 meters above sea level) typically experiences less fog and coastal cloud cover than the immediate coastal zones. This higher elevation terrain also tends to have better drainage, reducing flood risk during seasonal rains. Particularly promising are the open areas between Huaquillas and Arenillas, approximately 15-20 kilometers to the northeast. This zone features extensive flat to gently sloping land that has already seen some agricultural clearing, meaning less natural vegetation would need to be removed for solar installation. The drier hills further inland, roughly 25-30 kilometers from Huaquillas, present another viable option. These areas receive minimal shade from topographical features and maintain consistent exposure to solar radiation throughout the year. The natural slope of these hills, when facing toward the equator, can actually enhance solar collection efficiency. Areas to avoid would include the wetland zones closer to the coast, agricultural lands directly adjacent to permanent waterways, and any locations within protected ecological zones. The immediate border areas might also present administrative complications for large infrastructure projects. The soil stability in the recommended areas generally supports the construction requirements for solar infrastructure, though site-specific geological surveys would be necessary before any major development. Access to existing road infrastructure is relatively good throughout the region, which would facilitate both construction and maintenance operations for solar facilities.

Citation Guide

Article Details for Citation

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

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