Gazipur, Dhaka Division, Bangladesh, situated at 23.9859°N, 90.4087°E, presents a promising location for solar PV energy generation throughout the year. This northern subtropical region experiences varying levels of solar potential across different seasons, offering opportunities for consistent energy production.

Seasonal Solar Performance

The solar output in Gazipur fluctuates across seasons, with spring showing the highest productivity at 5.98 kWh/day per kW installed. Summer and autumn maintain solid performance with 4.51 kWh/day and 4.72 kWh/day, respectively. Winter sees a slight dip to 4.01 kWh/day, but still offers reasonable energy generation.

Spring emerges as the ideal time for solar energy production in Gazipur, Dhaka Division, with long daylight hours and clear skies contributing to peak performance. The transition seasons of autumn and summer also provide favorable conditions for solar PV systems.

Optimal Panel Placement

To maximize year-round solar energy production in Gazipur, Dhaka Division, fixed solar panels should be tilted at a 23-degree angle facing south. This orientation ensures optimal exposure to sunlight throughout the year, accounting for the location's latitude and the Earth's elliptical orbit.

Environmental Considerations

While Gazipur offers generally favorable conditions for solar energy production, there are some environmental factors to consider:

• Monsoon season: Heavy rainfall and increased cloud cover during the monsoon months (June to September) may temporarily reduce solar output.
• Air pollution: Gazipur's proximity to industrial areas may lead to air pollution, potentially affecting solar panel efficiency.

Preventative Measures

To mitigate these challenges and ensure optimal solar energy production, consider implementing the following measures:

Install a robust cleaning system to remove dust and pollutants from panel surfaces regularly. Use high-quality, weather-resistant solar panels that can withstand heavy rainfall and humidity. Implement a monitoring system to track performance and quickly identify any issues. Consider slight adjustments to panel tilt during monsoon season to maximize exposure during clearer periods.

Overall, Gazipur's location offers a favorable environment for solar PV energy generation, with proper planning and maintenance strategies in place to address potential challenges.

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 Gazipur

Seasonal solar PV output for Latitude: 23.9859, Longitude: 90.4087 (Gazipur, 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 Gazipur, Bangladesh

To maximize your solar PV system's energy output in Gazipur, Bangladesh (Lat/Long 23.9859, 90.4087) 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 Gazipur, 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 Gazipur, 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 Gazipur, 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 Gazipur, 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 Gazipur, Bangladesh

Gazipur, located in central Bangladesh, is characterized by a relatively flat topography typical of the Bengal Basin. The area around Gazipur is predominantly a low-lying plain, with subtle variations in elevation. The landscape is part of the larger Ganges-Brahmaputra Delta, one of the world's largest river deltas. The terrain in and around Gazipur is generally level, with occasional gentle undulations. Small hillocks and slightly elevated areas can be found scattered throughout the region, but these are not significant enough to drastically alter the overall flat nature of the landscape. The area is crisscrossed by numerous rivers, streams, and canals, which contribute to the formation of alluvial plains and fertile agricultural land.

Suitability for Large-Scale Solar PV

When considering areas near Gazipur for large-scale solar photovoltaic (PV) installations, several factors come into play. The flat terrain of the region is generally favorable for solar PV projects, as it minimizes the need for extensive land preparation and allows for efficient layout of solar panels. Areas to the north and northwest of Gazipur could be particularly suitable for solar PV installations. These regions tend to have slightly higher elevations and are less prone to flooding compared to the southern parts of the district. The elevated areas provide better drainage and reduced risk of waterlogging, which is crucial for the longevity and efficiency of solar panels. The eastern parts of Gazipur district, extending towards Narsingdi, also offer potential for solar PV projects. These areas have some gently rolling terrain that could be advantageous for solar panel placement, allowing for optimal sun exposure throughout the day. However, it's important to note that much of the land around Gazipur is used for agriculture, and careful consideration must be given to land use conflicts. Ideal locations for large-scale solar PV would be areas with minimal agricultural value, such as fallow land or degraded areas that are not suitable for crop production. Additionally, proximity to existing power infrastructure should be considered. Areas closer to major power lines and substations would be more cost-effective for connecting large-scale solar installations to the grid. While the flat topography of Gazipur and its surroundings is generally conducive to solar PV development, site-specific assessments would be necessary to determine the most suitable locations. Factors such as soil stability, flood risk, and environmental impact would need to be carefully evaluated before embarking on any large-scale solar project in the region.

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

Tell Us About Your Work

We love seeing how our research helps others! If you've cited this article in your work, we'd be delighted to hear about it. Drop us a line via our Contact Us page or on X, to share where you've used our information - we may feature a link to your work on our site. This helps create a network of valuable resources for others in the solar energy community and helps us understand how our research is contributing to the field. Plus, we occasionally highlight exceptional works that reference our research on our social media channels.

Feeling generous?

Share this with your friends!

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.