Bang Bo, Samut Prakan, Thailand, situated in the tropics at latitude 13.5825 and longitude 100.8163, offers a promising location for year-round solar energy generation. The consistent sunlight throughout the year, characteristic of tropical regions, provides a stable foundation for solar PV installations.
Seasonal Solar Performance
The solar energy output at this location remains relatively consistent across all seasons, with only minor fluctuations: Spring sees the highest production at 6.05 kWh/day per kW installed, closely followed by Winter at 5.97 kWh/day. Summer yields 5.91 kWh/day, while Autumn experiences a slight dip to 5.02 kWh/day. This minimal variation suggests that Bang Bo is well-suited for year-round solar energy generation, with the potential for reliable power output throughout the year.Optimal Panel Tilt
For fixed panel installations in Bang Bo, Samut Prakan, the ideal tilt angle to maximize year-round solar production is 13 degrees facing South. This angle has been calculated to optimize energy capture across all seasons, taking into account the location's latitude and the Earth's elliptical orbit.Environmental Considerations
While Bang Bo's tropical climate is generally favorable for solar energy production, there are some environmental factors to consider: 1. Rainfall: The region experiences a monsoon season, typically from May to October, which could potentially reduce solar efficiency due to cloud cover and rainfall. 2. Dust and pollution: Being near industrial areas, air pollution and dust accumulation on panels could impact performance. To mitigate these factors, consider implementing the following measures:- Install a reliable cleaning system or schedule regular manual cleaning to combat dust and pollution buildup.
- Use high-quality, weather-resistant panels designed to perform well in humid conditions.
- Implement a robust drainage system to prevent water accumulation on panels during heavy rains.
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 Thailand. This analysis provides insights into each city/location's potential for harnessing solar energy through PV installations.
Link: Solar PV potential in Thailand by location
Solar output per kW of installed solar PV by season in Bang Bo
Seasonal solar PV output for Latitude: 13.5825, Longitude: 100.8163 (Bang Bo, Thailand), 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 13° South in Bang Bo, Thailand
To maximize your solar PV system's energy output in Bang Bo, Thailand (Lat/Long 13.5825, 100.8163) throughout the year, you should tilt your panels at an angle of 13° 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 Bang Bo, Thailand
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 Bang Bo, Thailand. As mentioned earlier, for fixed-panel solar PV installations, it is optimal to maintain a 13° South tilt angle throughout the year.
| Overall Best Summer Angle | Overall Best Autumn Angle | Overall Best Winter Angle | Overall Best Spring Angle |
|---|---|---|---|
| 3° North in Summer | 20° South in Autumn | 29° South in Winter | 7° 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 Bang Bo, Thailand
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 Bang Bo, Thailand.
Our calculation method
- Solar Position:
We determine the Sun's position on the Winter solstice using the location's latitude and solar declination. - Shadow Projection:
We calculate the shadow length cast by panels using trigonometry, considering panel tilt and the Sun's elevation angle. - 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 Bang Bo, Thailand
The area around Bang Bo, Thailand, is characterized by a predominantly flat landscape typical of the central plains region. This part of Thailand is known for its low-lying terrain, with very little variation in elevation. The topography is largely shaped by the Chao Phraya River delta, which has created a vast expanse of fertile lowlands.
The immediate vicinity of Bang Bo consists mainly of agricultural land, interspersed with small urban settlements and industrial areas. You'll find a patchwork of rice paddies, orchards, and other cultivated fields stretching out in all directions. The land is crisscrossed by a network of canals and small waterways, which are used for irrigation and local transportation.
To the east of Bang Bo, the terrain gradually transitions into the coastal plains that border the Gulf of Thailand. This area is characterized by salt flats, mangrove swamps, and mudflats. The coastline itself is relatively flat and featureless, with few natural harbors or significant elevation changes.
When considering areas nearby that would be most suited for large-scale solar PV (photovoltaic) installations, several factors come into play. The flat, open terrain around Bang Bo offers numerous potential sites that could be suitable for solar farms. The lack of significant geographical features means there are few natural obstacles to block sunlight, which is crucial for optimal solar energy production.
Some of the most promising areas for large-scale solar PV installations would likely be found in the agricultural lands surrounding Bang Bo. These areas often have large, unobstructed plots of land that could be repurposed or dual-purposed for solar energy generation. The flat terrain makes construction and maintenance of solar panels relatively straightforward.
However, it's important to note that the region's susceptibility to flooding during the monsoon season could pose challenges for solar installations. Areas slightly elevated above flood-prone zones would be preferable. Additionally, locations with easy access to existing power infrastructure and transportation networks would be advantageous for the development of large-scale solar projects.
In conclusion, while the topography around Bang Bo is generally favorable for solar PV installations due to its flatness and open spaces, careful site selection would be necessary to mitigate potential flooding risks and maximize the efficiency of any large-scale solar energy projects in the area.
Thailand solar PV Stats as a country
Thailand ranks 26th in the world for cumulative solar PV capacity, with 3,049 total MW's of solar PV installed. This means that 2.90% of Thailand's total energy as a country comes from solar PV (that's 29th in the world). Each year Thailand is generating 44 Watts from solar PV per capita (Thailand ranks 54th in the world for solar PV Watts generated per capita). [source]
Are there incentives for businesses to install solar in Thailand?
Yes, there are several incentives for businesses wanting to install solar energy in Thailand. The Thai government offers a number of tax incentives and subsidies for businesses that install solar energy systems. These include a 30% corporate income tax deduction on the cost of installing solar panels, as well as an exemption from import duties on certain components used in the installation process. Additionally, businesses can benefit from net metering policies which allow them to sell excess electricity generated by their solar system back to the grid at a premium rate. Finally, businesses may also be eligible for grants and other financial assistance from various government agencies and private organizations.
Do you have more up to date information than this on incentives towards solar PV projects in Thailand? Please reach out to us and help us keep this information current. Thanks!
Citation Guide
Article Details for Citation
Author: Aaron Robinson
Publisher: profileSOLAR.com
First Published: Saturday 24th of August 2024
Last Updated: Monday 21st of July 2025
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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.




