Bhola District in Bangladesh presents a moderately favorable location for year-round solar photovoltaic energy generation. Located in the tropical zone at coordinates 22.6903°N, 90.6409°E, this region benefits from consistent sunlight throughout most of the year, with seasonal variations characterized more by wet and dry periods than traditional temperature-based seasons.

Solar Energy Output Performance

The solar energy production at this location shows significant seasonal variation. Spring emerges as the most productive season, generating 6.05 kWh per day per kW of installed solar capacity. Autumn follows as the second-best performing season at 4.71 kWh/day per kW. Both summer and winter show similar, more modest output levels at 4.28 kWh/day and 4.27 kWh/day per kW respectively. For optimal year-round performance, solar panels should be installed at a fixed tilt angle of 22 degrees facing south. This angle maximizes total annual solar energy production by accounting for the sun's path throughout the year and the location's specific latitude.

Environmental and Weather Challenges

Several significant environmental factors in Bhola District can impede solar energy production and require careful consideration during installation planning. The region experiences intense monsoon seasons with heavy rainfall, high humidity, and frequent cloud cover during wet months. These conditions can substantially reduce solar irradiance and create challenges for equipment maintenance. The coastal location makes the area particularly vulnerable to tropical cyclones and severe weather events that can damage solar installations. High humidity levels throughout much of the year can lead to accelerated corrosion of metal components and electrical connections. The combination of heat and moisture creates an environment where dust, salt spray from nearby coastal areas, and organic matter can accumulate on panel surfaces, reducing their efficiency.

Preventative Measures for Enhanced Performance

Several installation strategies can help mitigate these environmental challenges and ensure better energy production:

• Install panels with robust mounting systems designed to withstand high winds and cyclonic conditions
• Use corrosion-resistant materials and protective coatings on all metal components
• Implement regular cleaning schedules to remove dust, salt deposits, and organic debris from panel surfaces
• Ensure proper drainage systems to prevent water accumulation around installations
• Select inverters and electrical equipment with high ingress protection ratings suitable for humid tropical environments

Additionally, installing monitoring systems can help track performance and identify when cleaning or maintenance is needed. Proper ventilation around panels helps reduce heat buildup and moisture retention, while strategic placement away from trees or structures that might create excessive shading during monsoon periods can maintain optimal exposure to available sunlight.

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 Bhola District

Seasonal solar PV output for Latitude: 22.6903, Longitude: 90.6409 (Bhola District, 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 Bhola District, Bangladesh

To maximize your solar PV system's energy output in Bhola District, Bangladesh (Lat/Long 22.6903, 90.6409) 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 Bhola District, 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 Bhola District, 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 Bhola District, 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 Bhola District, 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 Bhola District, Bangladesh

Topographical Features of Bhola District

Bhola District sits within the vast deltaic plains of southern Bangladesh, characterized by extremely flat terrain that rarely rises more than a few meters above sea level. This region forms part of the active Ganges-Brahmaputra-Meghna delta system, where centuries of river sediment deposition have created an expansive landscape of fertile alluvial plains. The district encompasses both mainland areas and numerous islands, with Bhola Island being the largest river island in Bangladesh and among the largest in the world. The topography consists primarily of low-lying floodplains intersected by an intricate network of rivers, channels, and tidal creeks. These waterways constantly reshape the landscape through erosion and accretion processes, creating a dynamic environment where land boundaries shift over time. The terrain slopes very gently toward the Bay of Bengal, with most areas sitting at elevations between one and three meters above mean sea level. Seasonal flooding affects much of the region during monsoon periods, when river levels rise significantly and tidal influences extend far inland. The flat nature of the terrain means that floodwaters can spread across wide areas, though the land typically drains relatively quickly once water levels recede. Between the numerous waterways lie stable areas of higher ground that remain above flood levels during normal conditions.

Soil Composition and Land Use

The soils throughout Bhola District consist predominantly of fine silts and clays deposited by river systems over millennia. These fertile alluvial soils support intensive agricultural activities, with rice cultivation dominating the landscape during wet seasons and various crops grown during drier periods. The soil composition provides generally stable foundations, though the high clay content can present drainage challenges in some areas. Agricultural fields are typically organized in a patchwork pattern separated by raised embankments and drainage channels. These field boundaries and water management structures create a distinctive geometric landscape visible from aerial perspectives. Villages and settlements occupy slightly elevated areas, often built on natural levees alongside rivers and channels.

Climate and Environmental Conditions

The region experiences a tropical monsoon climate with distinct wet and dry seasons. During the dry season, typically from November through April, conditions remain relatively stable with clear skies and minimal precipitation. The wet season brings heavy rainfall and increased cloud cover, significantly affecting solar irradiance levels. Humidity remains high throughout the year due to the extensive water bodies and proximity to the Bay of Bengal. The flat terrain offers little protection from prevailing winds, which can be beneficial for cooling solar installations but may require consideration for mounting systems during cyclone seasons.

Optimal Areas for Large-Scale Solar Development

The most suitable locations for extensive solar photovoltaic installations would be the stable, higher-elevation areas that remain consistently above flood levels. These areas typically include natural levees along major rivers and slightly elevated plains that have historically avoided seasonal inundation. Such locations provide the necessary ground stability and reduced flood risk essential for long-term solar infrastructure investments. Areas with established transportation access via roads or navigable waterways would be preferable for construction and maintenance activities. The relatively flat terrain throughout the region means that minimal site preparation would be required for solar panel installation, reducing development costs compared to more mountainous regions. Sites located away from the most agriculturally productive lands would minimize conflicts with food production while still taking advantage of the excellent solar resource availability. Some areas of less fertile soil or land that has become less suitable for agriculture due to salinity intrusion might present ideal opportunities for solar development. The extensive river and channel network could potentially facilitate transportation of equipment and materials during construction phases, while the flat topography would allow for optimal solar panel orientation and minimal shading between panel rows. Areas with existing electrical infrastructure or proximity to transmission lines would offer additional advantages for grid connection of large-scale 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!

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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.