Ja Ela, Western Province, Sri Lanka, situated at latitude 7.0802 and longitude 79.8918, offers a promising location for solar energy generation throughout the year. This tropical setting benefits from consistent sunlight, with seasons primarily characterized by wet and dry periods rather than traditional temperature-based seasons.

Year-round Solar Potential

The solar energy output at this location remains relatively stable across all meteorological seasons. Spring sees the highest production at 6.55 kWh per day for each kilowatt of installed solar capacity. Summer follows closely with 6.31 kWh/day, while winter maintains a strong 6.24 kWh/day. Autumn experiences a slight dip but still produces a respectable 5.65 kWh/day. This consistency in output makes Ja Ela an ideal location for solar PV installations, as it ensures a steady energy supply throughout the year. The minimal fluctuation between seasons allows for more reliable energy planning and reduces the need for supplementary power sources during less productive periods.

Optimal Panel Positioning

For fixed panel installations in Ja Ela, Western Province, the ideal tilt angle to maximize year-round solar production is 6 degrees facing South. This relatively shallow angle is due to the location's proximity to the equator, where the sun's path remains high in the sky throughout the year.

Environmental Considerations

While Ja Ela's tropical climate is generally favorable for solar energy production, there are some environmental factors to consider: 1. Monsoon seasons: Sri Lanka experiences two monsoon seasons, which can lead to increased cloud cover and rainfall, potentially reducing solar output. 2. High humidity: The tropical climate brings high humidity levels, which can affect solar panel efficiency and potentially lead to accelerated wear on equipment. To mitigate these factors, several preventative measures can be taken during solar installation:

• Use corrosion-resistant materials and proper sealing to protect against humidity-related damage.
• Install a robust cleaning system to remove dust and debris, which can accumulate more quickly in humid environments.
• Consider slightly over-sizing the solar array to compensate for potential production losses during monsoon seasons.
• Implement a high-quality monitoring system to quickly identify and address any performance issues.

By taking these precautions, solar installations in Ja Ela can maximize their energy production potential and ensure long-term reliability, making the most of this location's favorable solar conditions.

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 109 locations across Sri Lanka. This analysis provides insights into each city/location's potential for harnessing solar energy through PV installations.

Link: Solar PV potential in Sri Lanka by location

Solar output per kW of installed solar PV by season in Ja Ela

Seasonal solar PV output for Latitude: 7.0802, Longitude: 79.8918 (Ja Ela, Sri Lanka), 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 6° South in Ja Ela, Sri Lanka

To maximize your solar PV system's energy output in Ja Ela, Sri Lanka (Lat/Long 7.0802, 79.8918) throughout the year, you should tilt your panels at an angle of 6° 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 Ja Ela, Sri Lanka

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 Ja Ela, Sri Lanka. As mentioned earlier, for fixed-panel solar PV installations, it is optimal to maintain a 6° South tilt angle throughout the year.

Overall Best Summer Angle	Overall Best Autumn Angle	Overall Best Winter Angle	Overall Best Spring Angle
9° North in Summer	12° South in Autumn	22° South in Winter	1° 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 Ja Ela, Sri Lanka

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 Ja Ela, Sri Lanka.

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 Ja Ela, Sri Lanka

The area around Ja Ela, Sri Lanka, is characterized by a relatively flat, low-lying coastal plain. This region is part of the country's western coastal belt, which is known for its tropical climate and proximity to the Indian Ocean. The topography is generally uniform, with only slight variations in elevation across the landscape.

The terrain in and around Ja Ela consists primarily of gently rolling plains, interspersed with occasional small hills and shallow depressions. The area is crisscrossed by numerous small streams and canals, which are part of the local drainage system. These waterways eventually flow into larger rivers or directly into the sea.

Much of the land in this region has been developed for urban and agricultural purposes. You'll find a mix of residential areas, commercial zones, and cultivated fields, particularly rice paddies and coconut plantations. The natural vegetation that remains is typically tropical, with patches of dense undergrowth and scattered trees.

When considering areas nearby that would be most suited to large-scale solar PV (photovoltaic) installations, several factors come into play. The ideal locations would be relatively flat, open areas with minimal shading from trees or buildings. These characteristics allow for maximum sun exposure throughout the day.

Some of the most promising areas for solar PV development near Ja Ela would likely be found slightly inland, away from the immediate coastal zone. These areas might include:

1. Cleared agricultural land that is no longer in active use
2. Open fields or meadows with minimal tree cover
3. Gently sloping hillsides facing south or southwest
4. Large, flat industrial or commercial zones with ample roof space

It's important to note that while the topography around Ja Ela is generally favorable for solar PV installations, other factors such as local climate conditions, grid connectivity, and land-use regulations would also need to be considered when planning a large-scale solar project in this area.

Sri Lanka solar PV Stats as a country

Sri Lanka ranks 55th in the world for cumulative solar PV capacity, with 434 total MW's of solar PV installed. Each year Sri Lanka is generating 20 Watts from solar PV per capita (Sri Lanka ranks 66th in the world for solar PV Watts generated per capita). [source]

Are there incentives for businesses to install solar in Sri Lanka?

Yes, there are incentives for businesses wanting to install solar energy in Sri Lanka. The government of Sri Lanka 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 install solar systems. Additionally, the government has set up a Renewable Energy Fund which provides grants to support research and development activities related to renewable energy technologies.

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

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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.

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.