Bagerhat, Khulna Division, Bangladesh, located at 22.6953°N, 89.7194°E, presents a favorable environment for solar PV energy generation throughout the year. Situated in the tropics, this location benefits from consistent sunlight and experiences seasons primarily characterized by wet and dry periods rather than temperature extremes.

Seasonal Solar Production

Solar energy production in Bagerhat varies across the meteorological seasons:

• Spring: 6.08 kWh/day per kW installed
• Summer: 4.37 kWh/day per kW installed
• Autumn: 4.53 kWh/day per kW installed
• Winter: 4.20 kWh/day per kW installed

Spring stands out as the most productive season, likely due to clearer skies and moderate temperatures. While summer might be expected to yield the highest output, factors such as increased cloud cover during the monsoon season may contribute to its lower production.

Optimal Panel Placement

For fixed panel installations in Bagerhat, Khulna Division, the ideal tilt angle to maximize year-round solar production is 22 degrees facing South. This angle takes into account the location's latitude and the sun's position throughout the year, ensuring optimal exposure to sunlight across all seasons.

Environmental Considerations

While Bagerhat's tropical climate is generally conducive to solar energy production, there are some environmental factors to consider: 1. Monsoon season: Heavy rainfall and increased cloud cover during the summer monsoon (June to September) may reduce solar panel efficiency. Installing panels with good drainage and using high-quality, water-resistant equipment can mitigate these effects. 2. Humidity: The region's high humidity levels can potentially lead to moisture accumulation on panels. Regular cleaning and maintenance, along with proper sealing of electrical components, can help prevent related issues. 3. Dust and air pollution: Agricultural activities and urban pollution may lead to dust accumulation on panels. Implementing automated cleaning systems or scheduling regular manual cleaning can maintain optimal panel performance.

By addressing these factors through thoughtful installation and maintenance practices, Bagerhat can effectively harness its substantial solar energy potential throughout the year.

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 Bagerhat

Seasonal solar PV output for Latitude: 22.6953, Longitude: 89.7194 (Bagerhat, 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 Bagerhat, Bangladesh

To maximize your solar PV system's energy output in Bagerhat, Bangladesh (Lat/Long 22.6953, 89.7194) 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 Bagerhat, 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 Bagerhat, 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 Bagerhat, 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 Bagerhat, 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 Bagerhat, Bangladesh

The topography around Bagerhat, Bangladesh, is characterized by its low-lying, flat terrain typical of the Ganges-Brahmaputra Delta region. This area is predominantly composed of alluvial plains, formed by centuries of sediment deposition from the numerous rivers that crisscross the landscape. The elevation is generally close to sea level, with many parts of the region only a few meters above it. The surrounding area is a patchwork of agricultural lands, interspersed with numerous water bodies such as rivers, canals, and ponds. These waterways are essential for irrigation and transportation but also contribute to the region's vulnerability to flooding during monsoon seasons. The soil is fertile due to the regular deposition of silt, making it ideal for agriculture, particularly rice cultivation.

Potential for Solar PV Development

When considering areas nearby that would be most suited to large-scale solar PV installations, several factors come into play. The flat terrain of the region is generally advantageous for solar farms, as it reduces the need for extensive land preparation and allows for easier installation and maintenance of solar panels. Areas slightly elevated above the flood-prone zones would be ideal candidates for solar PV development. These locations would offer better protection against seasonal flooding, which could otherwise damage equipment and disrupt operations. Additionally, areas with minimal tree cover and away from dense settlements would be preferable to maximize sun exposure and reduce potential conflicts with existing land uses. Agricultural lands that are less productive or fallow could be considered for solar PV installations, providing an alternative use for the land while potentially generating additional income for local communities. However, care must be taken to balance energy production with food security concerns. It's important to note that while the region receives ample sunlight throughout the year, the high humidity and occasional dust storms common to the area may impact solar panel efficiency. Therefore, sites with good air circulation and relatively lower humidity levels would be more suitable for optimal performance of solar PV systems. Lastly, proximity to existing power infrastructure and roads should be considered to facilitate grid connection and ease of access for construction and maintenance. Areas near major towns or industrial zones might offer these advantages while also being closer to centers of energy demand.

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

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.