Santo Domingo de los Colorados, Ecuador presents a moderately favorable location for year-round solar PV energy generation, with consistent performance across all seasons due to its tropical location near the equator.
Seasonal Solar Performance
The location demonstrates relatively stable solar energy output throughout the year, with autumn showing the highest production at 4.30 kWh per day per kW of installed capacity. Winter produces the lowest output at 3.69 kWh per day per kW, while summer and spring generate 3.83 and 3.93 kWh per day per kW respectively. Autumn emerges as the ideal season for solar generation at this location, followed closely by spring. The variation between seasons is modest, reflecting the consistent tropical sunlight patterns typical of equatorial regions where wet and dry seasons dominate rather than traditional temperature-based seasons. For fixed panel installations at Santo Domingo de los Colorados, the optimal tilt angle is 0 degrees (completely flat) to maximize total year-round solar production. This horizontal positioning takes advantage of the location's proximity to the equator where the sun passes nearly overhead throughout the year.Environmental and Weather Challenges
Several significant factors could impede solar production at this tropical location:- High humidity and frequent cloud cover during wet seasons can reduce solar irradiance and energy output
- Heavy rainfall typical of tropical climates may cause temporary production drops and create maintenance challenges
- Dust and debris accumulation on panels, accelerated by humid conditions and vegetation growth
- Potential for severe weather events including tropical storms that could damage installations
Preventative Measures for Optimal Performance
To maximize energy production despite these challenges, several installation strategies should be considered:- Enhanced drainage systems around solar installations to prevent water accumulation and flooding damage
- Regular cleaning schedules to remove dust, pollen, and organic debris that accumulate more rapidly in humid tropical environments
- Robust mounting systems designed to withstand high winds and heavy rain loads
- Proper ventilation spacing between panels and mounting surfaces to prevent moisture buildup and improve cooling efficiency
- Anti-corrosion treatments for all metal components due to high humidity exposure
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 Santo Domingo De Los Colorados
Seasonal solar PV output for Latitude: -0.2537, Longitude: -79.1763 (Santo Domingo De Los Colorados, 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:
 
Ideally tilt fixed solar panels 0° in Santo Domingo De Los Colorados, Ecuador
To maximize your solar PV system's energy output in Santo Domingo De Los Colorados, Ecuador (Lat/Long -0.2537, -79.1763) throughout the year, you should tilt your panels at an angle of 0° 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.
Seasonally adjusted solar panel tilt angles for Santo Domingo De Los Colorados, 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 Santo Domingo De Los Colorados, Ecuador. As mentioned earlier, for fixed-panel solar PV installations, it is optimal to maintain a 0° tilt angle throughout the year.
| Overall Best Summer Angle | Overall Best Autumn Angle | Overall Best Winter Angle | Overall Best Spring Angle |
|---|---|---|---|
| 15° South in Summer | 6° North in Autumn | 16° North in Winter | 6° South in Spring |
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 Santo Domingo De Los Colorados, 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 Santo Domingo De Los Colorados, Ecuador.
Our calculation method
- Solar Position:
We determine the Sun's position on the Winter solstice using the location's latitude and solar declination. - Shadow Projection:
We calculate the shadow length cast by panels using trigonometry, considering panel tilt and the Sun's elevation angle. - 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.
Topography for solar PV around Santo Domingo De Los Colorados, Ecuador
Topographical Features of Santo Domingo de los Colorados
Santo Domingo de los Colorados sits in the western foothills of the Andes Mountains in Ecuador, positioned at an elevation of approximately 550 meters above sea level. The city occupies a transitional zone between the dramatic mountain slopes to the east and the gradually descending coastal plains that extend westward toward the Pacific Ocean. This location places it within what geographers call the pre-montane zone, characterized by rolling hills, river valleys, and relatively gentle terrain compared to the steep Andean peaks nearby. The landscape around Santo Domingo features a series of undulating hills and ridges that generally trend north-south, following the broader geological patterns of the region. These hills are interspersed with numerous river valleys and tributaries that drain westward toward the coast. The Toachi River system plays a significant role in shaping the local topography, creating fertile valleys and floodplains that have attracted agricultural development throughout the area.Climate and Vegetation Patterns
The region experiences a subtropical climate influenced by both its elevation and proximity to the equator. Dense tropical vegetation covers much of the natural landscape, though extensive agricultural conversion has transformed large portions of the original forest cover. The area receives substantial rainfall throughout much of the year, supporting lush vegetation growth and contributing to the generally humid conditions that characterize this part of Ecuador. Agricultural activities dominate the modified landscape, with cattle ranching, palm oil plantations, and various crop cultivation creating a patchwork of cleared areas interspersed with remaining forest fragments. This agricultural conversion has resulted in relatively open terrain in many locations, which becomes relevant when considering large-scale infrastructure development.Optimal Areas for Large-Scale Solar Development
The most suitable locations for large-scale solar photovoltaic installations around Santo Domingo de los Colorados would be found on the elevated plateaus and ridge tops that extend westward from the city toward the coastal plains. These areas offer several advantages, including relatively flat or gently sloping terrain that minimizes grading requirements and construction costs. The agricultural zones southwest and west of the city present particularly promising opportunities, as much of this land has already been cleared and leveled for farming operations. These areas typically feature good road access for equipment transport and maintenance, along with proximity to existing electrical infrastructure. The slightly higher elevations in these zones also provide better drainage and reduce the risk of flooding during heavy rainfall periods. Ridge systems running parallel to the Andes, particularly those extending northwest and southwest from Santo Domingo, offer elevated positions that can maximize solar exposure while avoiding the shadowing effects that might occur in valley bottoms. These ridgelines often feature consistent slopes facing various directions, allowing for optimal panel orientation regardless of the specific site characteristics.Infrastructure and Access Considerations
The presence of major transportation corridors, including the highway connections between Quito and the coast, creates opportunities for solar development in areas with established access routes. The relatively developed agricultural infrastructure in the region means that many potential sites already have basic road networks and are not located in pristine wilderness areas where environmental concerns might be more significant. Areas northeast of the city, while more mountainous, include some elevated plateaus and mesa-like formations that could accommodate solar installations, though these locations would require more careful site evaluation due to their proximity to steeper terrain and potential drainage challenges during the rainy seasons.Citation Guide
Article Details for Citation
Author: Aaron Robinson
Publisher: profileSOLAR.com
First Published: Monday 30th of June 2025
Last Updated: Tuesday 5th of August 2025
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Compare this location to others worldwide for solar PV potential
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