In Hat Yai, Songkhla, Thailand, located at latitude 7.0202 and longitude 100.4718, solar power generation is highly viable due to consistent sunlight exposure throughout the year. The average kilowatt-hours (kWh) produced per day for each kilowatt (kW) of installed solar capacity varies seasonally but remains relatively high across all seasons. The highest yield occurs in spring with an average of 6.29 kWh/day per kW, while autumn sees the lowest at 4.71 kWh/day per kW.
The tropical climate in Hat Yai is more accurately characterized by wet and dry periods rather than traditional seasonal changes as seen in temperate regions; however, this does not significantly hinder solar power generation capabilities in the area.
The optimal tilt angle for fixed panel installations at this location is 6 degrees facing southward to maximize sun exposure throughout the year.
While there are no major environmental or topographical factors that would significantly impede solar production in Hat Yai, Songkhla, it's worth noting that during monsoon season there might be increased cloud cover which could slightly reduce solar output. To counteract this potential issue and ensure optimal energy production year-round, it may be beneficial to install panels with anti-reflective coating to increase light absorption during cloudy conditions.
Overall, despite minor fluctuations across seasons and potential weather-related challenges during monsoon periods, Hat Yai's geographical position makes it a suitable location for efficient and consistent solar power generation using fixed panel installations.
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 81 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 Hat Yai
Seasonal solar PV output for Latitude: 7.0202, Longitude: 100.4718 (Hat Yai, 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 6° South in Hat Yai, Thailand
To maximize your solar PV system's energy output in Hat Yai, Thailand (Lat/Long 7.0202, 100.4718) throughout the year, you should tilt your panels at an angle of 6° 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 Hat Yai, 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 Hat Yai, Thailand. As mentioned earlier, for fixed-panel solar PV installations, it is optimal to maintain a 6° South tilt angle throughout the year.
Overall Best Summer Angle | Overall Best Autumn Angle | Overall Best Winter Angle | Overall Best Spring Angle |
---|---|---|---|
9° North in Summer | 12° South in Autumn | 22° South in Winter | 1° 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 Hat Yai, 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 Hat Yai, 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 Hat Yai, Thailand
The topography around Hat Yai, Thailand is generally flat. The nearby areas that would be most suitable for large-scale solar PV installations are the open fields and flat plains located to the north and east of the city. These areas have plenty of space for large arrays of solar panels and receive plenty of sunlight throughout the year, making them ideal locations for solar energy production.
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: Wednesday 29th of November 2023
Last Updated: Wednesday 26th of June 2024
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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.