Solar PV Analysis of Lopburi, Thailand
Lopburi, Thailand, situated at a latitude of 14.8025 and longitude of 100.6181, is an excellent location for solar power generation due to its tropical climate characterized by consistent strong sunlight throughout the year. The city sees minimal temperature fluctuations but undergoes wet and dry periods that influence solar production slightly.
In terms of energy output per season, the average daily energy produced per kW of installed solar capacity in Lopburi is as follows: Summer yields approximately 5.91kWh/day, Autumn produces around 5.01kWh/day, Winter generates about 5.88kWh/day while Spring sees the highest output at roughly 6.03kWh/day.
The optimal tilt angle for fixed panel installations in this location would be towards the South at an inclination of approximately 14 degrees from horizontal plane to maximize sunlight exposure throughout the year.
While Lopburi's climate generally favors solar power generation, it is important to consider potential environmental factors that could affect it to some extent such as periods of heavy rainfall during monsoon season which can limit sun exposure temporarily or dust accumulation on panels which can reduce their efficiency over time if not cleaned regularly.
To mitigate these issues and ensure optimal energy production from installed solar panels in Lopburi:
1) Regular maintenance including cleaning off accumulated dust or debris should be carried out especially during dry periods when dust accumulation is more likely.
2) Waterproofing measures should be taken into consideration during installation process to protect equipment from potential damage during heavy rains.
3) Installations could also consider using micro-inverters or power optimizers which are designed to optimize each panel's performance individually rather than collectively thus reducing impact from temporary shading caused by clouds or rain showers.
These measures will help maintain high levels of energy production year-round despite minor seasonal variations in weather conditions prevalent in Lopburi region.
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 Lopburi
Seasonal solar PV output for Latitude: 14.8025, Longitude: 100.6181 (Lopburi, 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 14° South in Lopburi, Thailand
To maximize your solar PV system's energy output in Lopburi, Thailand (Lat/Long 14.8025, 100.6181) throughout the year, you should tilt your panels at an angle of 14° 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 Lopburi, 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 Lopburi, Thailand. As mentioned earlier, for fixed-panel solar PV installations, it is optimal to maintain a 14° South tilt angle throughout the year.
| Overall Best Summer Angle | Overall Best Autumn Angle | Overall Best Winter Angle | Overall Best Spring Angle |
|---|---|---|---|
| 1° North in Summer | 21° South in Autumn | 30° South in Winter | 8° 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 Lopburi, 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 Lopburi, 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 Lopburi, Thailand
The topography around Lopburi, Thailand is generally flat with some low hills to the east and south. The area is well-suited for large scale solar PV as it receives plenty of sunlight throughout the year. Areas that are most suitable for large scale solar PV would be open fields, rooftops, and parking lots with unobstructed access to direct sunlight. Additionally, areas near rivers or other bodies of water can also be used as they tend to have less dust in the air which reduces shading from clouds and particulates.
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: Sunday 2nd of July 2023
Last Updated: Monday 21st of July 2025
Tell Us About Your Work
We love seeing how our research helps others! If you've cited this article in your work, we'd be delighted to hear about it. Drop us a line via our Contact Us page or on X, to share where you've used our information - we may feature a link to your work on our site. This helps create a network of valuable resources for others in the solar energy community and helps us understand how our research is contributing to the field. Plus, we occasionally highlight exceptional works that reference our research on our social media channels.
Feeling generous?
Share this with your friends!
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.
