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Flag of EcuadorSolar PV Analysis of El Empalme, Ecuador

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

El Empalme, Guayas, Ecuador represents an excellent location for year-round solar photovoltaic energy generation. Positioned in the tropics at coordinates -1.0449, -79.6384, this area benefits from consistent sunlight throughout most of the year, with seasonal variations characterized more by wet and dry periods rather than the dramatic temperature and daylight changes seen in temperate regions.

Solar Energy Production Potential

The solar energy output data for El Empalme demonstrates remarkably consistent performance across all seasons. During summer months, solar panels can be expected to generate 4.03 kWh per day for each kW of installed capacity. Autumn shows the highest productivity at 4.37 kWh/day per kW, while winter experiences the lowest output at 3.78 kWh/day per kW. Spring delivers strong performance again with 4.39 kWh/day per kW. The most productive seasons for solar generation at this location are spring and autumn, both exceeding 4.35 kWh/day per kW. Even during the least productive winter season, the output remains relatively high compared to many locations worldwide, making this an ideal year-round solar energy site. For optimal energy capture, fixed solar panel installations at El Empalme should be tilted at just 1 degree toward the north. This minimal tilt angle is calculated to maximize total annual solar production based on the location's proximity to the equator and weighted solar irradiance data throughout the year.

Environmental and Weather Challenges

Several local factors could potentially impact solar energy production in El Empalme. The tropical climate brings significant rainfall during wet seasons, which can reduce solar irradiance and create challenges for solar panel performance. Heavy cloud cover during these periods directly affects energy output by blocking sunlight from reaching the photovoltaic cells. High humidity levels, common in tropical coastal regions of Ecuador, can lead to moisture-related issues including corrosion of electrical components and reduced efficiency over time. The combination of heat and humidity also creates ideal conditions for biological growth, such as algae, moss, or bird droppings accumulating on panel surfaces. Coastal proximity may expose installations to salt-laden air, which can accelerate corrosion of metal components including mounting systems, electrical connections, and panel frames. Additionally, tropical storms or heavy winds during certain seasons could pose structural risks to solar installations.

Preventative Measures for Optimal Performance

Several installation strategies can help maximize solar energy production despite these environmental challenges:
  • Use marine-grade aluminum mounting systems and stainless steel hardware specifically designed to resist salt corrosion
  • Install panels with anti-reflective coatings and self-cleaning surfaces to minimize dirt and biological accumulation
  • Implement proper drainage systems to prevent water pooling around electrical components
  • Choose inverters and electrical equipment with high IP ratings for moisture protection
  • Design mounting structures to withstand local wind loads and provide adequate ventilation for cooling
Regular maintenance becomes particularly important in this tropical environment. Monthly cleaning schedules during dry seasons and more frequent inspections during wet periods can help maintain optimal performance. Installing monitoring systems allows for quick identification of performance drops that might indicate cleaning needs or equipment issues. Despite these considerations, El Empalme's consistent solar output throughout the year makes it an attractive location for solar energy projects, provided that installations are properly designed and maintained to handle the tropical coastal environment.

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 El Empalme

Seasonal solar PV output for Latitude: -1.0449, Longitude: -79.6384 (El Empalme, 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 El Empalme, Ecuador

To maximize your solar PV system's energy output in El Empalme, Ecuador (Lat/Long -1.0449, -79.6384) 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: -1.0449, Longitude: -79.6384, the ideal angle to tilt panels is 1° North

Seasonally adjusted solar panel tilt angles for El Empalme, 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 El Empalme, 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 El Empalme, 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 El Empalme, 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 El Empalme, 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 El Empalme, 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 El Empalme, Ecuador

Topographical Features of El Empalme Region

El Empalme sits in the coastal lowlands of western Ecuador, positioned within the broader Guayas River basin. The terrain around this area is characterized by relatively flat to gently rolling plains that extend across much of the coastal region. These lowlands form part of the extensive alluvial deposits that have been shaped by centuries of river activity from the Guayas River system and its tributaries.

The elevation around El Empalme remains consistently low, typically ranging from sea level to approximately 200 meters above sea level across the immediate vicinity. This gentle topography creates an expansive landscape of agricultural plains that stretch toward the Pacific coast to the west and gradually rise toward the foothills of the Andes Mountains to the east.

The region experiences a tropical climate with distinct wet and dry seasons, which has influenced the development of the landscape. During the wet season, the area receives substantial rainfall that supports lush vegetation and agricultural activities, while the dry season brings clearer skies and reduced precipitation. The flat terrain facilitates good drainage patterns, with numerous small streams and waterways threading through the landscape toward larger river systems.

Optimal Areas for Large-Scale Solar Development

The expansive flat plains surrounding El Empalme present excellent opportunities for large-scale solar photovoltaic installations. The most suitable areas lie to the north and northeast of the town, where extensive stretches of relatively unused or underutilized land offer minimal topographical obstacles. These areas benefit from the consistent flat terrain that would require minimal grading or site preparation work.

The agricultural plains to the west and southwest also present strong potential, particularly in areas where intensive farming may not be economically viable or where land use could be efficiently shared between solar installations and certain types of agriculture. The gentle slopes in these areas provide natural drainage while maintaining the accessibility necessary for construction and maintenance activities.

Areas closer to existing electrical infrastructure would be particularly advantageous, as El Empalme serves as a regional transportation hub with established road networks and utility connections. The flat topography throughout the region means that transmission lines could be efficiently routed to connect solar installations to the national grid without significant engineering challenges posed by difficult terrain.

The consistent elevation and minimal shading from topographical features across the coastal plains create ideal conditions for solar panel placement. The absence of significant hills, valleys, or other geographical obstacles means that large solar arrays could be positioned to maximize exposure to sunlight throughout the day without interference from terrain-based shadows.

Citation Guide

Article Details for Citation

Article: Solar PV Analysis of El Empalme, Ecuador
Author: Aaron Robinson
Publisher: profileSOLAR.com
First Published: Saturday 21st of June 2025
Last Updated: Tuesday 5th 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.

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