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Flag of EcuadorSolar PV Analysis of Catamayo, Ecuador

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

Catamayo, Loja, Ecuador represents an excellent location for year-round solar energy generation, with consistently high electricity output throughout all seasons. Located in the tropical zone at coordinates -3.9793, -79.3505, this area benefits from the reliable sunlight patterns typical of equatorial regions.

Solar Energy Performance

The solar energy output at Catamayo demonstrates remarkable consistency across all meteorological seasons. During summer months, solar panels generate 4.26 kWh per day for each kW of installed capacity. Autumn sees a slight improvement to 4.34 kWh/day per kW, while winter maintains strong performance at 4.30 kWh/day per kW. Spring emerges as the optimal season for solar generation, producing 4.66 kWh/day per kW of installed solar capacity. This makes spring the ideal time for maximum energy harvest, though the relatively small variation between seasons means solar installations remain highly productive year-round.

Optimal Panel Installation

For fixed panel installations at this location, the ideal tilt angle to maximize total year-round solar production is 4 degrees North. This angle is calculated by analyzing daily solar elevation angles at the latitude, determining optimal panel tilts, and weighting these angles by daily photovoltaic potential using solar irradiance data that accounts for Earth's elliptical orbit.

Environmental and Weather Considerations

Several local factors could potentially impact solar energy production at Catamayo and require consideration during installation planning. Dust and Particulate Matter: The region's proximity to agricultural areas and occasional dust from the nearby Andes mountains can accumulate on solar panels, reducing their efficiency. Regular cleaning schedules and installing panels with self-cleaning coatings or automated washing systems can help maintain optimal performance. Tropical Weather Patterns: While located in the tropics with distinct wet and dry seasons, heavy rainfall during wet periods can temporarily reduce solar output due to cloud cover. However, the rain also naturally cleans panels, which can improve efficiency once clear skies return. Installing panels with proper drainage and ensuring robust mounting systems that can withstand heavy rainfall is essential. High Humidity: The tropical climate brings elevated humidity levels that can affect electrical components over time. Using corrosion-resistant materials, proper ventilation around inverters and electrical equipment, and regular maintenance of connections can prevent humidity-related degradation. Temperature Considerations: While consistent sunlight is beneficial, high temperatures can reduce panel efficiency. Installing panels with adequate spacing for air circulation underneath and using temperature-resistant components helps maintain performance during peak heat periods. Seismic Activity: Ecuador's location along the Pacific Ring of Fire means earthquake considerations are important for solar installations. Using flexible mounting systems and following seismic building codes ensures installations remain secure and functional during seismic events. Overall, Catamayo offers exceptional conditions for solar energy generation, with these environmental factors being manageable through proper installation techniques and regular maintenance practices.

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 Catamayo

Seasonal solar PV output for Latitude: -3.9793, Longitude: -79.3505 (Catamayo, 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 4° North in Catamayo, Ecuador

To maximize your solar PV system's energy output in Catamayo, Ecuador (Lat/Long -3.9793, -79.3505) throughout the year, you should tilt your panels at an angle of 4° 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: -3.9793, Longitude: -79.3505, the ideal angle to tilt panels is 4° North

Seasonally adjusted solar panel tilt angles for Catamayo, 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 Catamayo, Ecuador. As mentioned earlier, for fixed-panel solar PV installations, it is optimal to maintain a 4° 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 20° North in Winter 2° 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 Catamayo, 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 20° angle towards the North for optimal energy production. Lastly, in Spring, position your panels at a 2° angle facing South to capture the most solar energy in Catamayo, 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 Catamayo, 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 Catamayo, 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 Catamayo, Ecuador

Topographical Features of Catamayo

Catamayo sits in a distinctive valley formation within the southern Andes of Ecuador, positioned at an elevation of approximately 1,200 meters above sea level. The town occupies a relatively flat basin surrounded by rolling hills and moderate mountain ridges that characterize this part of the Loja Province. The terrain immediately around Catamayo consists of gentle slopes and terraced agricultural land, with the Catamayo River meandering through the valley floor and providing natural drainage for the surrounding watershed. The broader landscape features a series of interconnected valleys and plateaus that extend both north and south of the town. To the east, the terrain gradually rises toward higher Andean peaks, while westward the elevation decreases as the land transitions toward the coastal lowlands. This positioning creates a natural bowl effect that influences local weather patterns and provides several distinct microclimates within a relatively small geographic area.

Geological and Land Use Characteristics

The valley floor around Catamayo consists primarily of alluvial deposits and sedimentary formations that have created fertile soils suitable for agriculture. Much of the immediate area is currently dedicated to farming activities, including crop cultivation and livestock grazing. The surrounding hillsides show evidence of both natural vegetation and human modification, with some areas cleared for agricultural use while others remain covered in native shrubland and scattered tree coverage. The geological stability of the region appears favorable for infrastructure development, with bedrock formations providing solid foundations at reasonable depths. Drainage patterns are well-established through natural water courses, and the moderate elevation provides good accessibility while avoiding the extreme altitude challenges found in higher Andean locations.

Optimal Areas for Large-Scale Solar Development

The most promising locations for extensive solar installations would be the elevated plateaus and gentle slopes that extend to the north and northwest of Catamayo. These areas offer several advantages including relatively flat terrain that would minimize grading requirements, good accessibility via existing road networks, and sufficient distance from residential areas to avoid land use conflicts. The hillsides with southern exposure present excellent opportunities for solar development, particularly those with slopes between 10 and 20 degrees that would naturally optimize panel positioning. These locations typically feature minimal vegetation and are less suitable for intensive agriculture, making them ideal candidates for solar farm development without competing with food production. Areas to the west of the main valley show particular promise due to their combination of appropriate topography and lower population density. The terrain in these locations consists of gently rolling hills with good solar exposure and minimal shading from surrounding features. Additionally, these western areas benefit from proximity to existing electrical infrastructure while maintaining sufficient space for large-scale installations. The elevated plains that extend southward from Catamayo also present viable options for solar development. These areas feature relatively uniform topography with good drainage characteristics and stable soil conditions. The moderate elevation provides favorable atmospheric conditions while remaining accessible for construction and maintenance activities.

Citation Guide

Article Details for Citation

Article: Solar PV Analysis of Catamayo, Ecuador
Author: Aaron Robinson
Publisher: profileSOLAR.com
First Published: Sunday 6th of July 2025
Last Updated: Wednesday 6th of August 2025

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