Bholuka, Mymensingh Division, Bangladesh presents a moderately favorable location for year-round solar PV energy generation, situated in the Northern Sub Tropics at coordinates 25.1959°N, 90.0492°E. The location demonstrates consistent solar energy potential throughout all seasons, with some notable seasonal variations that make certain times of year more productive than others.

Seasonal Solar Performance

The solar energy output at Bholuka varies significantly across the meteorological seasons. Spring emerges as the most productive period, generating 5.71 kWh per day per kW of installed solar capacity. This represents the peak solar generation season when conditions are most favorable for photovoltaic systems. Autumn follows as the second-best performing season with 4.82 kWh per day per kW installed. Summer produces 4.42 kWh per day per kW, while winter shows the lowest output at 4.13 kWh per day per kW installed. Despite winter being the least productive season, the output remains reasonably strong, indicating that solar installations can generate meaningful electricity year-round.

Optimal Panel Configuration

For fixed panel installations at Bholuka, Mymensingh Division, the ideal tilt angle to maximize total year-round solar production is 24 degrees facing south. This angle has been calculated by analyzing daily solar elevation angles at this latitude, determining optimal panel positioning, and weighting these angles according to photovoltaic potential using solar irradiance data while accounting for Earth's elliptical orbit.

Environmental and Weather Challenges

Several significant environmental and weather factors in Bangladesh can impact solar energy production at this location. The region experiences intense monsoon seasons that bring heavy rainfall, high humidity, and frequent cloud cover, which can substantially reduce solar irradiance and energy output during these periods. Dust accumulation presents another major challenge, particularly during dry seasons when fine particles settle on panel surfaces and create a barrier that reduces light transmission. This issue is compounded by the agricultural activities common in rural Bangladeshi areas, which can generate additional airborne particles. The high humidity levels typical of Bangladesh's subtropical climate can lead to moisture-related issues including potential corrosion of electrical components and reduced efficiency of photovoltaic cells over time.

Preventative Measures for Enhanced Performance

Several installation strategies can help mitigate these environmental challenges and optimize solar energy production:

• Install panels with adequate spacing and ventilation to promote air circulation and reduce moisture buildup
• Use high-quality, weather-resistant mounting systems and electrical components designed for tropical climates
• Implement regular cleaning schedules, particularly during dusty periods, using appropriate cleaning techniques that won't damage panel surfaces
• Consider installing automated cleaning systems or easy-access designs for maintenance in larger installations
• Apply protective coatings or choose panels with self-cleaning glass surfaces to reduce dust adhesion

Additionally, proper drainage systems should be installed to prevent water accumulation around panel installations, and regular maintenance schedules should be established to inspect and clean panels, particularly after dust storms or extended dry periods. Investing in monitoring systems can help identify performance drops quickly, allowing for prompt maintenance interventions to maintain optimal energy production throughout the year.

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 Bholuka

Seasonal solar PV output for Latitude: 25.1959, Longitude: 90.0492 (Bholuka, 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 24° South in Bholuka, Bangladesh

To maximize your solar PV system's energy output in Bholuka, Bangladesh (Lat/Long 25.1959, 90.0492) throughout the year, you should tilt your panels at an angle of 24° 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 Bholuka, 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 Bholuka, Bangladesh. As mentioned earlier, for fixed-panel solar PV installations, it is optimal to maintain a 24° South tilt angle throughout the year.

Overall Best Summer Angle	Overall Best Autumn Angle	Overall Best Winter Angle	Overall Best Spring Angle
9° South in Summer	31° South in Autumn	40° South in Winter	19° 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 Bholuka, 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 Bholuka, 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 Bholuka, Bangladesh

Topography Around Bholuka, Bangladesh

The landscape surrounding Bholuka in Bangladesh is characterized by relatively flat, low-lying terrain typical of the Bengal Delta region. This area sits within the broader Sylhet Division, where the topography consists primarily of gently undulating plains with minimal elevation changes. The region forms part of the extensive floodplains created by the Brahmaputra River system and its numerous tributaries, resulting in a predominantly level terrain that rarely exceeds 20 meters above sea level. The immediate vicinity of Bholuka features agricultural flatlands interspersed with small settlements and water bodies. These plains are punctuated by occasional low ridges and slight depressions that have been shaped by centuries of river meandering and seasonal flooding. The soil composition consists mainly of fertile alluvial deposits, which support intensive rice cultivation and other agricultural activities throughout much of the surrounding area.

Water Features and Drainage Patterns

The landscape is heavily influenced by an intricate network of rivers, streams, and seasonal waterways. These water features create a complex drainage pattern that affects land use and accessibility across the region. During monsoon periods, many of these waterways expand significantly, temporarily altering the effective topography and creating extensive wetland areas. Numerous small ponds, locally known as dighi, dot the landscape and serve both agricultural and domestic purposes. These water bodies, along with the natural drainage channels, create a mosaic pattern across the otherwise flat terrain that must be considered when evaluating large-scale development opportunities.

Optimal Areas for Large-Scale Solar Development

The most suitable locations for extensive solar photovoltaic installations would be the elevated agricultural plains that remain above the seasonal flood levels. These areas, typically found on the slightly higher ground between major waterways, offer the necessary flat terrain and reduced risk of water damage that large solar installations require. The western and southwestern areas relative to Bholuka present particularly favorable conditions, as these locations tend to be on marginally higher ground with better drainage characteristics. These zones feature more consolidated agricultural land with fewer interrupting water bodies, making them ideal for the continuous arrays of solar panels that maximize efficiency in large-scale installations. Areas immediately adjacent to existing road networks would provide additional advantages for solar development, as they offer better access for construction equipment and ongoing maintenance operations. The relatively flat topography throughout the region means that minimal land preparation would be required, reducing initial development costs compared to more mountainous regions.

Considerations for Solar Installation

The consistent flatness of the terrain around Bholuka eliminates concerns about shading from hills or mountains, which is advantageous for solar panel positioning. The absence of significant topographical barriers also means that wind patterns across solar installations would be relatively uniform, supporting consistent cooling of photovoltaic panels. The agricultural nature of much of the surrounding land presents both opportunities and challenges. While the flat, cleared agricultural areas provide ideal conditions for solar panel installation, any development would need to consider the impact on local farming communities and food production. Areas of less productive agricultural land or those prone to frequent flooding might represent the most suitable compromise locations for large-scale solar development.

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.