Solar PV Analysis of Tangibari, Bangladesh
Located in Tangibari, Dhaka Division, Bangladesh (latitude: 23.5114, longitude: 90.4667), the average daily kilowatt-hour (kWh) production per kilowatt (kW) of installed solar capacity varies across seasons. During summer, the average solar energy yield is approximately 4.50 kWh/kW per day; in autumn, it increases slightly to an average of 4.75 kWh/kW per day; and during winter months, it dips to an average of 4.06 kWh/kW per day due to shorter daylight hours and less intense sunlight.
However, spring proves to be the most bountiful season for solar energy production in Tangibari with a significantly higher yield averaging at about 5.98 kWh/kW per day - this can be attributed to longer daylight hours and more intense sunlight typical during this season.
The optimal tilt angle for fixed panel installations at this location is approximately 22 degrees facing southwards which maximises exposure towards incoming sunlight throughout the year.
While Tangibari's geographical location makes it quite suitable for harnessing solar power year-round due its tropical climate that ensures ample sunshine most days of the year; there are certain environmental factors that could potentially impact efficiency levels from time-to-time such as heavy rainfall or cloud cover that might reduce direct exposure towards sunlight.
However, these occurrences are not frequent enough to significantly affect overall system performance on a long-term basis given that they tend not last beyond short durations and clear weather conditions usually prevail thereafter allowing normal operations to resume quickly.
In order mitigate any potential impact from these occasional weather disturbances on energy output levels; installation designs should incorporate effective water drainage systems around panel sites so as prevent any water accumulation which could lead temporary shading effects over panels thereby reducing their efficiency until such water has been cleared away completely again.
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 Tangibari
Seasonal solar PV output for Latitude: 23.5114, Longitude: 90.4667 (Tangibari, 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 Tangibari, Bangladesh
To maximize your solar PV system's energy output in Tangibari, Bangladesh (Lat/Long 23.5114, 90.4667) 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 Tangibari, 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 Tangibari, 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 |
|---|---|---|---|
| 8° South in Summer | 29° South in Autumn | 39° South in Winter | 17° 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 Tangibari, 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 Tangibari, 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 Tangibari, Bangladesh
The topography around Tangibari, Bangladesh is mostly flat with some low-lying hills and small mountains. Areas nearby that would be most suited to large scale solar PV include plains, open fields, and other flat surfaces with good exposure to the sun. The nearby Meghna River could also provide a suitable location for ground-mounted solar installations.
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 15th of July 2023
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.
