Henegama, Western Province, Sri Lanka, located at 7.019° N, 80.0492° E, offers a favorable environment for solar PV energy generation throughout the year. This tropical location benefits from consistent sunlight, with seasonal variations primarily characterized by wet and dry periods rather than significant temperature fluctuations.

Seasonal Solar Performance

The solar energy output in Henegama demonstrates a relatively stable pattern across the year:

• Spring: 6.23 kWh/day
• Summer: 5.89 kWh/day
• Autumn: 5.09 kWh/day
• Winter: 5.71 kWh/day

These figures represent the expected daily electricity output per kilowatt of installed solar capacity. The data suggests that spring and summer are the most productive seasons for solar energy generation in Henegama.

Optimal Panel Tilt

For fixed panel installations in Henegama, Western Province, the ideal tilt angle to maximize year-round solar production is 6 degrees South. This slight tilt helps optimize the panels' exposure to sunlight throughout the year, accounting for the location's proximity to the equator and the Earth's elliptical orbit.

Environmental Considerations

While Henegama's tropical climate is generally conducive to solar energy production, there are some environmental factors to consider: Heavy rainfall during the monsoon season (typically May to September) may temporarily reduce solar panel efficiency. To mitigate this, installers should ensure proper drainage systems are in place and panels are angled correctly to allow water runoff. High humidity levels can potentially lead to moisture accumulation on panels, affecting their performance. Using high-quality, weather-resistant materials and implementing regular cleaning schedules can help maintain optimal efficiency.

Preventative Measures

To maximize solar energy production in Henegama, Western Province, consider the following preventative measures: Install panels with anti-reflective coatings to reduce light loss and improve performance in high-humidity conditions. Use corrosion-resistant mounting hardware to withstand the tropical climate. Implement a robust cleaning and maintenance schedule to prevent dust and debris accumulation, which can be more prevalent during dry seasons. By addressing these factors, solar installations in Henegama can take full advantage of the location's favorable solar conditions and maximize energy production throughout the year.

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 Henegama

Seasonal solar PV output for Latitude: 7.019, Longitude: 80.0492 (Henegama, 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 Henegama, Sri Lanka

To maximize your solar PV system's energy output in Henegama, Sri Lanka (Lat/Long 7.019, 80.0492) 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 Henegama, 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 Henegama, 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	13° 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 Henegama, 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 Henegama, 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 Henegama, Sri Lanka

The area around Henegama, Sri Lanka, is characterized by a diverse and picturesque topography typical of the country's central region. This part of Sri Lanka features a mix of gently rolling hills, lush valleys, and some flatter areas interspersed throughout the landscape.

The terrain in this region is generally considered part of Sri Lanka's lower highlands, with elevations gradually increasing as you move eastward towards the central mountains. The area around Henegama itself is relatively low-lying compared to the more mountainous regions further inland, with an average elevation of about 100 to 200 meters above sea level.

The topography is marked by numerous small streams and rivers that flow through the area, creating fertile valleys and contributing to the region's rich biodiversity. These waterways have shaped the land over time, carving gentle slopes and creating natural drainage systems.

Regarding areas nearby that would be most suited for large-scale solar PV (photovoltaic) installations, there are several factors to consider. The ideal locations would be:

1. Relatively flat or gently sloping areas to minimize the need for extensive land preparation
2. Open spaces with minimal tree cover to maximize sun exposure
3. Areas not prone to flooding or erosion
4. Locations with good access to existing infrastructure, such as roads and power grids

Based on these criteria, the most suitable areas for large-scale solar PV installations near Henegama would likely be found in the flatter, open spaces between the hills. These areas often include agricultural lands or cleared areas that are not currently being used for intensive farming. The gently sloping hillsides facing south or southwest could also be considered, as they would receive optimal sunlight throughout the day.

However, it's important to note that any large-scale solar project would require detailed site surveys and environmental impact assessments. The rich biodiversity and agricultural importance of the region would need to be carefully considered in planning such developments. Additionally, local regulations and land use policies would play a crucial role in determining the feasibility of large-scale solar installations 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

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