Solar PV Analysis of Barishal, Bangladesh
Barishal, Barisal Division, Bangladesh is a good location for generating energy through solar power all year round. This is because it's located in the Tropics, where sunlight is consistent throughout most of the year. The amount of electricity that can be generated from each kilowatt (kW) of installed solar varies slightly by season, but remains relatively high: 4.25 kilowatt-hours (kWh) per day in Summer, 4.73 kWh/day in Autumn, 4.32 kWh/day in Winter and peaking at 6.05 kWh/day in Spring.
The best time to generate solar energy at this location would be during spring when daily output can reach up to 6.05 kWh per kW installed due to increased sunlight hours and intensity.
For fixed panel installations at this location, tilting your panels at an angle of 22 degrees South will maximize total yearly production from your solar system as it aligns with the sun’s path across the sky.
However, there are some environmental and local factors that could affect solar production here:
1. Monsoon Season: Barishal experiences heavy rainfall during monsoon season which may reduce sunlight exposure and thus impact energy generation.
2. Dust & Dirt: Accumulation on the panels can decrease their efficiency.
3. Temperature: Solar panels become less efficient as temperature increases above a certain point despite more sunlight being available.
To counter these issues:
1.Monsoon Season: Install durable panels designed to withstand heavy rain or consider adjustable mounting systems that allow you to change panel angles for better performance during rainy periods.
2.Dust & Dirt: Regular cleaning/maintenance schedule should be established to ensure optimal operation.
3.Temperature: Using cooling mechanisms or installing panels slightly off roof surfaces allowing air flow beneath them can help keep temperatures down.
In summary, Barishal has strong potential for effective use of solar PV technology given its tropical climate with abundant sunshine most part of the year. However, measures should be taken to mitigate potential challenges such as monsoon rains and high temperatures for optimal energy production.
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 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 Barishal
Seasonal solar PV output for Latitude: 22.7413, Longitude: 90.4357 (Barishal, 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 22° South in Barishal, Bangladesh
To maximize your solar PV system's energy output in Barishal, Bangladesh (Lat/Long 22.7413, 90.4357) throughout the year, you should tilt your panels at an angle of 22° 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 Barishal, 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 Barishal, Bangladesh. As mentioned earlier, for fixed-panel solar PV installations, it is optimal to maintain a 22° South tilt angle throughout the year.
| Overall Best Summer Angle | Overall Best Autumn Angle | Overall Best Winter Angle | Overall Best Spring Angle |
|---|---|---|---|
| 7° South in Summer | 29° South in Autumn | 38° South in Winter | 16° 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 Barishal, 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 Barishal, 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 Barishal, Bangladesh
Barishal, Bangladesh is located in the Ganges Delta and is primarily a flat low-lying area. The region is crisscrossed by numerous rivers and canals which originate from the Ganges River. It also has several small hills. The climate of Barishal is typically tropical monsoon with high humidity.
For large scale solar PV installations, open flat areas are ideal as they allow for maximum exposure to sunlight. Areas that are not prone to flooding or water logging should be chosen considering the region's susceptibility to these issues due to its riverine topography.
Areas away from dense vegetation or tall buildings would also be suitable as they can cast shadows on the solar panels reducing their efficiency. Additionally, locations closer to power grids would be advantageous for easier transmission of electricity generated.
It's worth noting that while selecting sites for solar PV installation, social factors such as displacement of local communities or disruption of agricultural activities should also be considered along with environmental impact assessments.
However, specific site selection would require detailed surveys and studies including sun irradiance levels throughout the year among other factors.
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: Monday 15th of April 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.
