Nakhon Pathom, Thailand is a good location for generating energy through solar power all year round. This is because it's situated in the tropics where sunlight is consistent throughout most of the year.
The amount of electricity you can generate from each kilowatt (kW) of solar panels installed varies slightly by season. In summer, autumn, winter and spring, you can expect to produce 5.91, 5.02, 5.97 and 6.05 kilowatt-hours (kWh) per day respectively for each kW of installed solar panels.
This means that both spring and winter are the best times to generate solar power at this location due to higher daily kWh output per kW of installed solar panel.
To get the most out of your solar panels year-round in Nakhon Pathom, they should be fixed at an angle that faces 13 degrees South.
However, there might be some local factors that could affect how much energy you can produce from your solar panels in Nakhon Pathom:
1) Rainy Season: The tropical climate here means there's a rainy season which could reduce sunlight exposure on your panels.
2) Dust & Debris: These might accumulate on your panels over time and block sunlight.
3) High Temperatures: Solar PV efficiency decreases as temperature increases beyond optimal levels.
Preventative Measures:
1) Install a tracking system so your panels follow the sun during rainy seasons to maximize exposure.
2) Regular cleaning will help remove dust and debris off your panel surfaces.
3) Use cooling systems or install your modules in areas with good airflow to keep them operating within ideal temperatures ranges.
In conclusion, while there may be some challenges with weather conditions or environmental factors affecting production levels at certain times of the year or requiring additional maintenance efforts; generally speaking Nakhon Pathom provides an excellent location for harnessing consistent amounts of energy via Solar PV year-round.
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 Nakhon Pathom
Seasonal solar PV output for Latitude: 13.8667, Longitude: 100.1917 (Nakhon Pathom, 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 Nakhon Pathom, Thailand
To maximize your solar PV system's energy output in Nakhon Pathom, Thailand (Lat/Long 13.8667, 100.1917) 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 Nakhon Pathom, 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 Nakhon Pathom, 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 |
|---|---|---|---|
| 2° 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 Nakhon Pathom, 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 Nakhon Pathom, 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 Nakhon Pathom, Thailand
Nakhon Pathom, Thailand is located in the central region of the country. The topography is largely flat and low-lying with an average elevation of about 6 meters above sea level. It has a tropical wet and dry climate with high temperatures throughout the year.
This relatively flat terrain makes it suitable for large-scale solar photovoltaic (PV) installations as they require extensive areas of open, unshaded land. However, other factors such as local weather patterns, sunlight intensity and duration should also be taken into account.
Areas to consider for large scale solar PV would include agricultural lands or unused open spaces that receive ample sunlight throughout the year. Given its location near Bangkok Metropolitan Region, there might be potential opportunities to integrate solar PV systems into urban planning or industrial parks.
However, any plans for large-scale solar farms would need to take into consideration environmental impacts on local ecosystems and communities. It's also important to note that while Nakhon Pathom's topography may be suited for solar farms, specific site surveys and assessments would still need to be conducted before any definitive conclusions can be made.
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: Tuesday 14th of May 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.




