Srimangal, Sylhet Division, Bangladesh, located at 24.3079° N, 91.7295° E in the Northern Sub Tropics, offers a promising environment for solar PV energy generation throughout the year. The location's seasonal electricity output per kW of installed solar demonstrates its potential for consistent energy production.
Seasonal Solar Performance
Spring emerges as the most productive season, with an impressive 6.06 kWh/day output. Autumn follows closely with 5.14 kWh/day, while Summer and Winter maintain respectable outputs of 4.53 kWh/day and 4.48 kWh/day, respectively. This relatively balanced distribution across seasons indicates that Srimangal is well-suited for year-round solar energy generation.
Optimal Panel Positioning
For fixed panel installations in Srimangal, Sylhet Division, the ideal tilt angle to maximize year-round solar production is 24 degrees facing South. This angle is calculated based on the location's latitude and accounts for the Earth's elliptical orbit, ensuring optimal exposure to sunlight throughout the year.
Environmental Considerations
While Srimangal's climate is generally favorable for solar energy production, there are some environmental factors to consider. The region experiences a monsoon season, typically from June to October, which can lead to increased cloud cover and rainfall. This may temporarily reduce solar panel efficiency during these months.
To mitigate the impact of monsoon weather, installers should consider using high-quality, weather-resistant panels and ensuring proper drainage systems are in place. Additionally, regular cleaning and maintenance of panels can help maintain optimal performance during and after the rainy season.
Conclusion
Overall, Srimangal presents a highly suitable location for solar PV energy generation. Its consistent output across seasons, coupled with the ability to optimize panel positioning, makes it an attractive option for solar investments. By addressing potential weather-related challenges through appropriate installation and maintenance practices, Srimangal can harness its solar potential effectively throughout the year.
Note: The Northern Sub Tropics extend from 23.5° latitude North up to 35° latitude.
So far, we have conducted calculations to evaluate the solar photovoltaic (PV) potential in 88 locations across Bangladesh. This analysis provides insights into each city/location's potential for harnessing solar energy through PV installations.
Link: Solar PV potential in Bangladesh by location
Solar output per kW of installed solar PV by season in Srimangal
Seasonal solar PV output for Latitude: 24.3079, Longitude: 91.7295 (Srimangal, Bangladesh), 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 24° South in Srimangal, Bangladesh
To maximize your solar PV system's energy output in Srimangal, Bangladesh (Lat/Long 24.3079, 91.7295) throughout the year, you should tilt your panels at an angle of 24° 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 Srimangal, Bangladesh
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 Srimangal, Bangladesh. As mentioned earlier, for fixed-panel solar PV installations, it is optimal to maintain a 24° South tilt angle throughout the year.
| Overall Best Summer Angle | Overall Best Autumn Angle | Overall Best Winter Angle | Overall Best Spring Angle |
|---|---|---|---|
| 8° South in Summer | 30° South in Autumn | 40° South in Winter | 18° 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 Srimangal, Bangladesh
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 Srimangal, Bangladesh.
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 Srimangal, Bangladesh
The topography around Srimangal, Bangladesh, is characterized by a mix of gently rolling hills and flat lowlands. This region, located in the northeastern part of the country, is known for its lush tea gardens that carpet the landscape. The area is part of the larger Sylhet Division, which is generally more hilly compared to much of Bangladesh's predominantly flat terrain.
The hills around Srimangal are not particularly high, typically ranging from 30 to 50 meters above sea level. These modest elevations create a picturesque, undulating landscape that is quite distinct from the vast delta plains that dominate most of the country. Interspersed among these hills are numerous small valleys and flatlands, often used for agriculture or tea cultivation.
Several small rivers and streams crisscross the region, contributing to its overall fertility and lush vegetation. The soil in this area tends to be more fertile than in other parts of Bangladesh, supporting not only tea plantations but also various fruit orchards and forest patches.
Regarding areas suitable for large-scale solar PV (photovoltaic) installations, the flatlands and gentler slopes near Srimangal offer promising potential. The most suitable locations would likely be found in the open areas between tea gardens or on the flatter terrain to the south and west of Srimangal. These areas generally receive good sunlight exposure and have fewer obstacles that could cast shadows on solar panels.
However, it's important to note that while the topography may be suitable, other factors need consideration for solar PV implementation. These include land availability, as much of the area is already used for agriculture or tea production. Additionally, the region's relatively high rainfall and occasional cloudiness might impact the overall efficiency of solar installations.
The areas immediately surrounding Srimangal town might not be ideal due to urban development and the presence of tea estates. Instead, the flatter regions further out, particularly towards the southwest where the terrain becomes less hilly, could offer more suitable locations for large-scale solar projects. These areas would likely provide the necessary space and sunlight exposure while minimizing conflicts with existing land uses.
Bangladesh solar PV Stats as a country
Bangladesh ranks 63rd in the world for cumulative solar PV capacity, with 329 total MW's of solar PV installed. Each year Bangladesh is generating 2 Watts from solar PV per capita (Bangladesh ranks 87th in the world for solar PV Watts generated per capita). [source]
Are there incentives for businesses to install solar in Bangladesh?
Yes, there are incentives for businesses wanting to install solar energy in Bangladesh. The government of Bangladesh 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 Bangladesh? Please reach out to us and help us keep this information current. Thanks!
Citation Guide
Article Details for Citation
Author: Aaron Robinson
Publisher: profileSOLAR.com
First Published: Saturday 27th of July 2024
Last Updated: Monday 21st of July 2025
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Compare this location to others worldwide for solar PV potential
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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.
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