Colon, La Libertad Department, El Salvador presents an excellent location for year-round solar energy generation. Located in the tropical zone at coordinates 13.7113°N, -89.346°W, this area benefits from consistent sunlight throughout the year, with seasons typically defined by wet and dry periods rather than significant temperature variations.

Solar Energy Production Potential

The solar energy output data for Colon demonstrates remarkably consistent performance across all seasons. Spring emerges as the peak production period, generating 7.21 kWh per day for each kilowatt of installed solar capacity. Summer follows closely with 6.77 kWh/day, while winter and autumn show slightly lower but still strong output at 6.40 kWh/day and 6.37 kWh/day respectively. This consistency makes Colon an ideal location for solar installations, as energy production remains reliable throughout the year without dramatic seasonal fluctuations that plague higher latitude locations.

Optimal Panel Configuration

For maximum year-round solar production at this location, fixed solar panels should be installed at a 13-degree tilt facing south. This angle has been calculated to optimize total annual energy output by accounting for the sun's varying position throughout the year and the Earth's elliptical orbit around the sun.

Environmental and Weather Challenges

Several significant factors in Colon could impact solar energy production and require careful consideration during installation:

• Tropical rainfall and wet seasons: Heavy rains can reduce solar output and create challenges for equipment durability
• High humidity levels: Can cause corrosion and electrical issues in solar components
• Dust and volcanic ash: El Salvador's volcanic activity can deposit ash on panels, reducing efficiency
• Hurricane and tropical storm risks: Strong winds and severe weather can damage installations
• Salt air exposure: Being relatively close to coastal areas, salt corrosion may affect equipment

Preventative Measures for Optimal Performance

To maximize solar energy production despite these challenges, several protective measures should be implemented:

• Robust mounting systems: Use heavy-duty, corrosion-resistant mounting hardware designed for high wind loads
• Regular cleaning schedules: Establish routine panel cleaning to remove dust, ash, and debris, particularly during dry seasons
• Quality component selection: Choose panels and inverters with high IP ratings for moisture protection and anti-corrosion coatings
• Proper drainage design: Ensure installations allow proper water runoff to prevent standing water and potential electrical hazards
• Elevated installations: Mount panels with adequate clearance to promote air circulation and reduce humidity-related issues

Despite these environmental considerations, Colon's tropical location offers substantial advantages for solar energy generation. The consistent solar output throughout the year, combined with proper installation techniques and maintenance practices, makes this an excellent location for reliable renewable energy production.

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 6 locations across El Salvador. This analysis provides insights into each city/location's potential for harnessing solar energy through PV installations.

Link: Solar PV potential in El Salvador by location

Solar output per kW of installed solar PV by season in Colon

Seasonal solar PV output for Latitude: 13.7113, Longitude: -89.346 (Colon, El Salvador), 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 13° South in Colon, El Salvador

To maximize your solar PV system's energy output in Colon, El Salvador (Lat/Long 13.7113, -89.346) throughout the year, you should tilt your panels at an angle of 13° South 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 Colon, El Salvador

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 Colon, El Salvador. As mentioned earlier, for fixed-panel solar PV installations, it is optimal to maintain a 13° South tilt angle throughout the year.

Overall Best Summer Angle	Overall Best Autumn Angle	Overall Best Winter Angle	Overall Best Spring Angle
2° North in Summer	20° South in Autumn	29° South in Winter	7° 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 Colon, El Salvador

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 Colon, El Salvador.

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 Colon, El Salvador

Topographical Features Around Colon, El Salvador

Colon is situated in the central region of El Salvador, positioned within a landscape characterized by rolling hills and moderate elevation changes typical of the country's interior volcanic terrain. The area sits at an elevation of approximately 400 meters above sea level, placing it in a transitional zone between the coastal lowlands to the south and the higher volcanic peaks that dominate much of El Salvador's central spine.

The topography around Colon features a series of gentle to moderate slopes interspersed with relatively flat valley floors and ridge systems. These undulating hills are remnants of ancient volcanic activity that shaped much of central El Salvador, creating a terrain that varies between gradual inclines and more pronounced ridgelines. The landscape is punctuated by seasonal watercourses and small river valleys that have carved their way through the volcanic soils over millennia.

Moving outward from Colon, the terrain gradually transitions toward steeper volcanic slopes to the north and northwest, where several prominent volcanic peaks rise significantly above the surrounding countryside. To the south and southeast, the land generally slopes downward toward the coastal plain, creating a more gradual descent through agricultural valleys and rolling farmland.

Optimal Areas for Large-Scale Solar Development

The most promising locations for large-scale solar photovoltaic installations around Colon would be the relatively flat valley floors and gentle south-facing slopes that characterize much of the immediate vicinity. These areas offer the dual advantages of minimal grading requirements and favorable solar exposure throughout the day. The valley floors, in particular, provide expansive areas of relatively level terrain that would minimize construction costs and maximize the efficiency of solar panel arrays.

The moderate ridgelines and hilltops surrounding Colon present excellent opportunities for solar development, particularly those with southern exposures that remain unobstructed by taller peaks or dense vegetation. These elevated positions benefit from consistent air circulation that helps maintain optimal operating temperatures for photovoltaic panels while avoiding the potential shading issues that might occur in deeper valleys during certain times of the year.

Areas to the south and southeast of Colon, where the terrain begins its gradual descent toward the coastal regions, offer particularly attractive conditions for solar installations. These locations combine the benefits of good drainage, stable geological conditions, and typically feature cleared agricultural land that could be readily converted to solar use. The gentle slopes in these areas provide natural advantages for optimal panel positioning while maintaining accessibility for construction and maintenance activities.

The agricultural valleys that extend in multiple directions from Colon represent another category of suitable terrain, especially those areas currently used for less intensive farming or cattle grazing. These locations typically feature deep, stable soils and gentle gradients that would support large-scale solar infrastructure while offering good access to existing road networks and electrical transmission corridors that connect the region to El Salvador's national grid.

El Salvador solar PV Stats as a country

El Salvador ranks 50th in the world for cumulative solar PV capacity, with 478 total MW's of solar PV installed. Each year El Salvador is generating 74 Watts from solar PV per capita (El Salvador ranks 44th in the world for solar PV Watts generated per capita). [source]

Are there incentives for businesses to install solar in El Salvador?

Yes, there are incentives for businesses wanting to install solar energy in El Salvador. The government of El Salvador has implemented a number of policies and programs to promote the use of renewable energy sources such as solar power. These include tax exemptions, subsidies, and other financial incentives for businesses that invest in solar energy projects. Additionally, the government has established a Renewable Energy Fund which provides grants and loans to support renewable energy projects.

Do you have more up to date information than this on incentives towards solar PV projects in El Salvador? Please reach out to us and help us keep this information current. Thanks!

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.