Solar PV Analysis of Homagama, Sri Lanka
Homagama, Western Province, Sri Lanka, is a very suitable location for generating solar energy throughout the year. This region receives consistent sunlight due to its tropical location and has stable energy output across all seasons. The amount of electricity you can expect to generate per kilowatt of installed solar panels varies slightly by season: summer gives 6.03kWh/day, autumn provides 5.52kWh/day, winter offers 6.20kWh/day while spring delivers the highest at 6.46 kWh/day.
Therefore, spring would be the most productive time for generating solar power in Homagama due to the higher daily energy output rate; however, the difference between seasons is not significant enough to greatly affect overall yearly production.
To get the most from your solar panel system in this area throughout the year, you should install your panels tilted at an angle of six degrees towards South direction.
However, there could be local factors that might impact solar production at this location - these could include environmental or weather conditions like heavy rainfall during monsoon season which may reduce sunlight exposure or cause dirt accumulation on panels reducing their efficiency.
To ensure greater energy production despite these potential challenges:
1) Regular maintenance and cleaning of panels can help prevent any efficiency loss caused by dust or debris build-up.
2) You may also consider installing a tracking system that follows sun's path and ensures maximum light absorption.
3) To protect against heavy rainfall damage or flooding (if it's a problem in this area), make sure your installation is robust and waterproofed properly.
4) If shading from nearby buildings or trees is an issue during certain times of day/year then site selection becomes crucial - try choosing a spot with minimal obstruction for maximum sunlight exposure.
In conclusion: Homagama presents good conditions for year-round solar PV generation with minor seasonal variations; some local factors might require attention but are manageable with proper planning and maintenance strategies.
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 Homagama
Seasonal solar PV output for Latitude: 6.8384, Longitude: 79.9992 (Homagama, 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 Homagama, Sri Lanka
To maximize your solar PV system's energy output in Homagama, Sri Lanka (Lat/Long 6.8384, 79.9992) 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 Homagama, 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 Homagama, 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 Homagama, 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 Homagama, Sri Lanka.
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 Homagama, Sri Lanka
Homagama is located in the western province of Sri Lanka. The area is generally flat with small rolling hills, making it suitable for agriculture and residential areas. It has a tropical rainforest climate with high humidity and heavy rainfall throughout the year.
Considering large-scale solar PV installations, relatively flat areas are ideal as they minimize installation costs and maximize efficiency by ensuring maximum exposure to sunlight. In this context, agricultural lands or open fields around Homagama could be considered for such projects.
However, it's crucial to consider several other factors before deciding on a location for large-scale solar PV installations:
1) Sunlight Exposure: Given that Homagama receives heavy rainfall throughout the year, it's important to assess whether the region gets enough sunlight hours annually for efficient energy generation.
2) Land Use: While agricultural lands may seem suitable due to their flat topography, using these lands can disrupt local food production. Therefore, barren or unused land would be preferable.
3) Proximity to Grid Connection: Large-scale solar power plants need access to transmission lines or substations to feed electricity into the grid efficiently. Locations closer to such infrastructure would be more suited.
4) Environmental Impact: Any potential environmental impacts should also be taken into account – including impacts on local wildlife habitats or sensitive ecosystems – before choosing a site for large-scale solar PV installations.
An exact analysis would require detailed geographical and meteorological data along with an understanding of local regulations related to land use and renewable energy projects.
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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Article Details for Citation
Author: Aaron Robinson
Publisher: profileSOLAR.com
First Published: Tuesday 7th of May 2024
Last Updated: Monday 21st of July 2025
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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.
