Badulla, Uva Province, Sri Lanka, situated at 6.9892° N, 81.0555° E, presents a promising location for solar PV energy generation throughout the year. This tropical setting benefits from consistent sunlight, with seasons primarily characterized by wet and dry periods rather than significant temperature variations.

Year-round Solar Potential

The solar energy output in Badulla remains relatively stable across seasons. Summer and Spring both yield an impressive 6.18 kWh per day for each kilowatt of installed solar capacity. Autumn sees a slight decrease to 5.60 kWh/day, while Winter experiences the lowest output at 5.39 kWh/day. These figures indicate a strong and steady potential for solar energy production throughout the year.

Optimal Installation Angle

For fixed panel installations in Badulla, Uva Province, the ideal tilt angle to maximize year-round solar production is 6 degrees South. This slight tilt helps optimize energy capture across seasons, accounting for the location's proximity to the equator and the Earth's elliptical orbit.

Peak Generation Periods

The most favorable times for solar energy generation in Badulla are during Summer and Spring, with both seasons producing 6.18 kWh/day per kW installed. These periods likely correspond to the drier months when cloud cover is minimal, allowing for maximum solar irradiance.

Environmental Considerations

While Badulla's tropical climate is generally conducive to 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's high humidity levels may lead to accelerated degradation of solar equipment if not properly protected. To mitigate these challenges, several preventative measures can be implemented:

• Use high-quality, weather-resistant solar panels and components designed for tropical climates
• Install robust mounting systems to withstand potential strong winds during monsoon seasons
• Implement regular cleaning and maintenance schedules to combat dust and debris accumulation
• Consider incorporating energy storage solutions to balance output during periods of reduced sunlight

By addressing these factors, solar installations in Badulla can maximize their energy production potential and longevity, taking full advantage of the location's favorable solar conditions 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 Badulla

Seasonal solar PV output for Latitude: 6.9892, Longitude: 81.0555 (Badulla, 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 Badulla, Sri Lanka

To maximize your solar PV system's energy output in Badulla, Sri Lanka (Lat/Long 6.9892, 81.0555) 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 Badulla, 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 Badulla, 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 Badulla, 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 Badulla, 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 Badulla, Sri Lanka

The topography around Badulla, Sri Lanka, is characterized by a diverse and picturesque landscape. Located in the Uva Province, Badulla sits at an elevation of approximately 680 meters (2,230 feet) above sea level. The area is known for its hilly terrain, with the city nestled in a valley surrounded by mountains and rolling hills. The region features a mix of steep slopes and gentler undulating terrain. To the east and northeast of Badulla, the land rises sharply towards the Namunukula mountain range, with some peaks reaching heights of over 2,000 meters. These mountains create a dramatic backdrop to the city and contribute to its cooler climate compared to the lowlands of Sri Lanka. To the west and southwest, the landscape becomes slightly less rugged, with a series of hills and valleys extending towards the central highlands. This area is dotted with tea plantations, which thrive in the region's climate and soil conditions. The famous Ella Gap, a scenic mountain pass, is located about 30 kilometers south of Badulla.

Potential Areas for Large-Scale Solar PV

When considering areas near Badulla for large-scale solar photovoltaic (PV) installations, several factors must be taken into account, including topography, land availability, and solar irradiance. The most suitable locations would likely be found in the following areas: The relatively flat or gently sloping lands to the west and southwest of Badulla offer promising potential for solar PV development. These areas receive ample sunlight and have fewer steep slopes compared to the mountainous regions to the east. The open spaces between tea plantations could be ideal for solar installations, provided they do not interfere with agricultural activities. Some of the broader valley floors near Badulla might also be suitable for solar PV projects. These areas typically have good sun exposure and are less prone to shading from surrounding hills. However, care must be taken to avoid flood-prone zones near rivers and streams. The elevated plateaus found in the region, particularly those with south-facing aspects, could be excellent locations for solar farms. These areas often receive more direct sunlight throughout the day and are less likely to be affected by morning and evening shading from nearby mountains. It's important to note that while the hilly terrain around Badulla presents some challenges for large-scale solar development, it also offers opportunities for innovative solar installations that can be integrated into the landscape. Careful site selection and environmental impact assessments would be crucial to ensure that any solar PV projects are both efficient and sustainable in this ecologically sensitive region.

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.