Solar Energy Potential in Zaruma, El Oro, Ecuador

Zaruma, El Oro, Ecuador, located in the tropics at latitude -3.6805 and longitude -79.6137, offers consistently favorable conditions for solar energy generation throughout the year. Unlike temperate regions with distinct seasonal variations in sunlight, this tropical location experiences relatively stable solar radiation patterns across all seasons. The solar energy production potential in Zaruma shows remarkable consistency throughout the year. During summer months, solar panels can generate approximately 4.26 kWh per day for each kilowatt of installed capacity. Autumn sees a slight increase to 4.34 kWh/day, while winter maintains a similar output of 4.30 kWh/day. Spring represents the peak production season, with panels capable of generating 4.66 kWh/day per installed kilowatt.

Optimal Panel Installation

For fixed solar panel installations in Zaruma, El Oro, the ideal tilt angle to maximize year-round energy production is 4 degrees facing North. This slight tilt optimizes the capture of solar radiation 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 energy production in Zaruma:

• Cloud cover during the wet season may temporarily reduce solar output, though the region's overall solar potential remains strong.
• Dust accumulation on panels can be significant in this mining region, requiring regular cleaning to maintain optimal efficiency.
• Occasional fog in the early mornings, particularly in valleys, might delay peak production until later in the day.

To mitigate these challenges, solar installations in Zaruma should incorporate several preventative measures. Regular panel cleaning schedules are essential to remove dust buildup. Installing panels at the recommended 4-degree tilt not only optimizes production but also helps with natural cleaning during rainfall. Additionally, selecting high-quality panels with good performance in diffuse light conditions will help maintain energy production during cloudier periods of the wet season.

Seasonal Considerations

The spring season offers the highest solar energy potential in Zaruma, El Oro, making it an ideal time for maximum energy harvesting. The minimal variation between seasons (less than 0.4 kWh/day difference between the lowest and highest producing seasons) demonstrates the location's excellent year-round solar potential. This consistency makes Zaruma particularly well-suited for solar energy systems designed to provide reliable power throughout the entire year without significant seasonal adjustments or supplemental energy sources.

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 Zaruma

Seasonal solar PV output for Latitude: -3.6805, Longitude: -79.6137 (Zaruma, 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 4° North in Zaruma, Ecuador

To maximize your solar PV system's energy output in Zaruma, Ecuador (Lat/Long -3.6805, -79.6137) 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.

Seasonally adjusted solar panel tilt angles for Zaruma, 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 Zaruma, 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	19° North in Winter	2° 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 Zaruma, 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 Zaruma, 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.

Topography for solar PV around Zaruma, Ecuador

The topography surrounding Zaruma, Ecuador presents a dramatic and varied landscape characteristic of the western Andean foothills. Situated in El Oro Province in southwestern Ecuador, Zaruma rests at an elevation of approximately 1,200 meters above sea level. The terrain is predominantly characterized by steep, mountainous slopes with deep valleys carved by the numerous rivers and streams that flow through the region. The area features a complex network of ridges and ravines, creating a highly irregular topographic profile. These mountains are part of the western cordillera of the Andes, though not as high as the central Andean peaks further east. The slopes around Zaruma are often inclined at angles exceeding 30 degrees, making much of the terrain challenging for development.

Surrounding Terrain Features

To the east of Zaruma, the terrain becomes increasingly mountainous as it transitions toward the higher Andean highlands. These eastern slopes feature more pronounced elevation changes and steeper gradients. Conversely, moving westward from Zaruma, the landscape gradually descends toward the coastal plains of Ecuador, with less severe slopes and broader valleys. The Puyango River basin lies to the southwest, creating a significant valley system that influences the local topography. Throughout the region, numerous smaller rivers and streams have carved intricate drainage patterns, further contributing to the complex topographical mosaic. Vegetation cover varies with elevation and exposure, with denser forest cover typically found on north-facing slopes and in valleys where moisture levels are higher. Many south-facing slopes and ridgetops experience greater solar exposure and often support less dense vegetation.

Potential Areas for Solar PV Development

For large-scale solar photovoltaic development, several topographical considerations become important. The most suitable areas near Zaruma would be: The lower-elevation areas to the west and southwest of Zaruma offer more favorable conditions for large-scale solar installations. These regions feature gentler slopes and broader plateaus that would require less extensive grading and site preparation. Particularly promising are the elevated flatlands and mesas that can be found scattered throughout the transition zone between the mountains and the coastal lowlands. Several broad ridgelines extending outward from the main mountainous areas present viable opportunities. These natural features often have relatively flat crests with excellent solar exposure. The ridges running northwest to southeast are particularly advantageous as they typically receive consistent sunlight throughout the day. Some of the broader valley floors, particularly those oriented east-west, could accommodate solar installations, though careful assessment for flooding risk would be necessary. The valley systems approximately 15-20 kilometers west of Zaruma, where the terrain begins to moderate, offer some of the most practical sites for development. Areas with south-facing aspects (in the Southern Hemisphere, these receive maximum solar radiation) on moderate slopes can also be suitable for solar development, though installation costs increase with slope gradient. Some of these locations can be found along the southern edges of the major ridgelines in the region. The most challenging aspects of solar development in this region relate to accessibility and grid connection rather than solar resource adequacy. The rugged terrain means that road infrastructure is limited in many potential development areas, and transmission infrastructure would need significant extension to reach some of the otherwise ideal locations.

Citation Guide

Article Details for Citation

Tell Us About Your Work

We love seeing how our research helps others! If you've cited this article in your work, we'd be delighted to hear about it. Drop us a line via our Contact Us page or on X, to share where you've used our information - we may feature a link to your work on our site. This helps create a network of valuable resources for others in the solar energy community and helps us understand how our research is contributing to the field. Plus, we occasionally highlight exceptional works that reference our research on our social media channels.

Feeling generous?

Share this with your friends!

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.

Helping you assess viability of solar PV for your site

Calculate Your Optimal Solar Panel Tilt Angle: A Comprehensive Guide

Enhance your solar panel's performance with our in-depth guide. Determine the best tilt angle using hard data, debunk common misunderstandings, and gain insight into how your specific location affects solar energy production.