Solar Energy Potential in Tejgaon, Dhaka Division, Bangladesh

Tejgaon, Dhaka Division, located in Bangladesh's capital city Dhaka, presents a promising location for solar PV energy generation throughout the year. Situated in the Northern Sub Tropics, this area experiences varying levels of solar potential across different seasons.

Seasonal Solar Output

The solar energy production in Tejgaon fluctuates across seasons. Spring stands out as the most productive period, with an impressive daily output of 5.98 kWh per kW of installed solar capacity. Autumn follows with 4.75 kWh/day, while summer yields 4.50 kWh/day. Winter sees the lowest production at 4.06 kWh/day, but still maintains a respectable output.

Optimal Panel Positioning

For fixed panel installations in Tejgaon, Dhaka Division, the ideal tilt angle to maximize year-round solar production is 23 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 Tejgaon offers favorable conditions for solar energy production, there are some environmental factors to consider:

• Monsoon season: Heavy rainfall and cloud cover during the monsoon months (June to September) may temporarily reduce solar output.
• Air pollution: Dhaka's urban environment can lead to particulate matter accumulation on solar panels, potentially decreasing efficiency.

To mitigate these challenges, regular panel cleaning and maintenance should be incorporated into the solar installation plan. Additionally, using high-quality, weather-resistant panels and implementing a slight tilt can help with natural cleaning during rainfall.

Conclusion

Overall, Tejgaon presents a favorable location for solar PV energy generation. With proper planning and maintenance, solar installations in this area can provide a significant and reliable source of renewable energy throughout the year, contributing to Bangladesh's growing clean energy sector.

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 Tejgaon

Seasonal solar PV output for Latitude: 23.7655, Longitude: 90.3878 (Tejgaon, 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 23° South in Tejgaon, Bangladesh

To maximize your solar PV system's energy output in Tejgaon, Bangladesh (Lat/Long 23.7655, 90.3878) throughout the year, you should tilt your panels at an angle of 23° 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 Tejgaon, 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 Tejgaon, Bangladesh. As mentioned earlier, for fixed-panel solar PV installations, it is optimal to maintain a 23° 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	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 Tejgaon, 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 Tejgaon, Bangladesh.

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 Tejgaon, Bangladesh

The topography around Tejgaon, Bangladesh (located at 23.7655° N, 90.3878° E) is characterized by a predominantly flat landscape. This area is part of the larger Bengal Delta, one of the world's largest river deltas formed by the Ganges, Brahmaputra, and Meghna rivers. The terrain in and around Tejgaon is generally low-lying, with elevations typically ranging from just a few meters above sea level to around 10 meters at most.

Tejgaon itself is an urban area within Dhaka, the capital city of Bangladesh. The surrounding region consists of a mix of densely populated urban areas, suburban developments, and some agricultural land. The flat nature of the terrain means there are few natural obstacles or significant changes in elevation across the immediate vicinity.

When considering areas nearby that would be most suited for large-scale solar PV (photovoltaic) installations, it's important to look for locations with certain characteristics. Ideal sites would have ample open space, minimal shading from buildings or trees, and good access to existing power infrastructure. Given these criteria, the following areas near Tejgaon might be more suitable for solar PV projects:

1. Rural areas to the north and northeast of Dhaka: These regions have more open land and fewer tall structures, potentially offering better conditions for solar farms.

2. Abandoned or underutilized industrial sites: Tejgaon and nearby areas have some industrial zones that could be repurposed for solar energy production if they're no longer in active use.

3. Rooftops of large commercial or industrial buildings: While not strictly "nearby" in a geographical sense, the extensive flat roofs of factories, warehouses, and other large structures in and around Tejgaon could be utilized for solar panel installation.

4. Areas along major highways: The relatively open spaces along highways leading out of Dhaka might offer potential sites for solar installations, provided they don't interfere with traffic or future road expansion plans.

It's important to note that while the flat terrain is generally favorable for solar PV, the region's susceptibility to flooding and the high population density in and around Dhaka pose challenges for large-scale solar projects. Any development would need to carefully consider these factors, as well as local land use regulations and environmental impacts.

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!

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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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