Samut Sakhon, Thailand is located in the Tropics where sunlight is consistent throughout most of the year. This makes it a good location for generating energy using solar panels all year round. The amount of energy you can expect to generate from each kilowatt (kW) of installed solar power varies slightly with the seasons, but stays relatively high throughout the year.
In Summer, you can expect to generate about 5.91 kilowatt-hours (kWh) per day for each kW of installed solar power. In Autumn, this drops slightly to about 5.02 kWh/day per kW, but then increases again in Winter and Spring to about 5.97 and 6.05 kWh/day per kW respectively.
The best time of year to generate solar energy at this location would be during Spring when the sun's rays are most direct and there is more daylight hours.
If you're planning on installing fixed panel solar installations at this location, tilting your panels at an angle of 13 degrees South will help maximise your total annual production from your solar panels.
There may be some local factors that could impact how much energy you can produce from your solar installation in Samut Sakhon such as environmental factors like heavy rainfall or cloud cover during the wet season which could reduce sunlight exposure on your panels; topography if there are hills or other structures that might shade your panels; weather such as strong winds or storms that could damage them; and other local factors like regulations or building codes.
To ensure greater energy production despite these possible challenges:
- Install a system with weather-resistant features such as durable frames and robust mounting systems.
- Choose a suitable site for installation where there are no obstructions blocking sunlight.
- Regular maintenance checks should also be carried out to keep the system running efficiently.
However, overall considering its tropical climate with consistent sunlight exposure throughout most parts of the year makes Samut Sakhon, Thailand an ideal location for solar energy production.
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 Samut Sakhon
Seasonal solar PV output for Latitude: 13.5341, Longitude: 100.286 (Samut Sakhon, 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 Samut Sakhon, Thailand
To maximize your solar PV system's energy output in Samut Sakhon, Thailand (Lat/Long 13.5341, 100.286) 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 Samut Sakhon, 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 Samut Sakhon, 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 Samut Sakhon, 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 Samut Sakhon, 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 Samut Sakhon, Thailand
Samut Sakhon, Thailand is located in the central region of the country and has a flat topography as it lies on the alluvial plain of the Chao Phraya River delta. The area is primarily urbanized with a significant portion dedicated to industrial use. It also has coastal areas along the Gulf of Thailand.
Given this topography, large-scale solar PV installations would be most suitable in non-urbanized and non-industrialized areas with ample sun exposure. However, considering Samut Sakhon's high level of urbanization and industrialization, such locations may not be readily available within city limits.
Nevertheless, suitable locations for solar PV could potentially include:
1. Rooftops: Given its urban setting, one option would be to install solar panels on rooftops of buildings - both residential and commercial.
2. Brownfield Sites: If there are any disused or abandoned industrial sites (brownfields), these could be repurposed for large-scale solar PV installations.
3. Floating Solar Farms: Since Samut Sakhon is located near water bodies like rivers or coastal areas, floating solar farms could also be an option if permitted by local regulations.
4. Nearby Non-Urban Areas: If looking beyond city limits, nearby rural or less densely populated regions with more open space might provide larger land parcels suitable for ground-mounted solar farms.
It's important to note that feasibility will depend on several other factors including sunlight levels (solar irradiance), land availability and use restrictions, environmental considerations and local regulations among others.
Finally, a detailed site-specific study would need to be conducted by professionals in order to accurately determine potential sites for large-scale solar PV installation around Samut Sakhon.
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!
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Article Details for Citation
Author: Aaron Robinson
Publisher: profileSOLAR.com
First Published: Monday 8th of January 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.




