Solar PV potential in Thailand by location
Below is the average daily output per kW of Solar PV installed for each season, along with the ideal solar panel tilt angles calculated for various locations in Thailand. Click on any location for more detailed information.
Explore the solar photovoltaic (PV) potential across 78 locations in Thailand, from Chiang Rai to Yala. We have utilized empirical solar and meteorological data obtained from NASA's POWER API to determine solar PV potential and identify the optimal panel tilt angles for these locations.
Feel free to contact us if you wish for us to include a general Solar PV Analysis for a certain city or location not already listed here for Thailand. We will be more than happy to manually add it for you.
| Location | Subdivision | Latitude | Longitude | kWh/day Summer | kWh/day Autumn | kWh/day Winter | kWh/day Spring | Panel Tilt Angle |
|---|---|---|---|---|---|---|---|---|
| Chiang Rai | Chiang Rai | 19.916 | 99.8297 | 5.09 | 4.77 | 5.23 | 6.08 | 19° South |
| Chiang Mai | Chiang Mai | 18.7929 | 99.0004 | 5.35 | 4.84 | 5.30 | 6.08 | 18° South |
| Lamphun | Lamphun | 18.5776 | 99.0097 | 5.35 | 4.84 | 5.30 | 6.08 | 18° South |
| Lampang | Lampang | 18.3001 | 99.511 | 5.35 | 4.84 | 5.30 | 6.08 | 18° South |
| Ban Pang San | Lamphun | 17.7428 | 99.0208 | 5.46 | 4.99 | 5.60 | 6.22 | 17° South |
| Akat Amnuai | Sakon Nakhon | 17.434 | 103.6615 | 5.86 | 5.41 | 5.90 | 5.99 | 17° South |
| Udon Thani | Udon Thani | 17.4158 | 102.7849 | 5.73 | 5.23 | 5.85 | 5.98 | 17° South |
| Warichaphum | Sakon Nakhon | 17.2809 | 103.633 | 5.86 | 5.41 | 5.90 | 5.99 | 17° South |
| Ban Phan Don | Udon Thani | 17.1443 | 102.9765 | 5.73 | 5.23 | 5.85 | 5.98 | 17° South |
| Sakon Nakhon | Sakon Nakhon | 16.9848 | 104.1308 | 5.88 | 5.22 | 5.86 | 6.03 | 16° South |
| Tak | Tak | 16.8732 | 99.1276 | 5.51 | 4.88 | 5.67 | 6.13 | 16° South |
| Phitsanulok | Phitsanulok | 16.8358 | 100.2518 | 5.70 | 5.14 | 5.90 | 6.12 | 16° South |
| Yang Talat | Kalasin | 16.4006 | 103.3869 | 5.92 | 5.18 | 5.90 | 5.95 | 16° South |
| Kalasin | Kalasin | 16.4006 | 103.3869 | 5.92 | 5.18 | 5.90 | 5.95 | 16° South |
| Kantharawichai | Maha Sarakham | 16.3179 | 103.2968 | 5.92 | 5.18 | 5.90 | 5.95 | 16° South |
| Khon Kaen | Khon Kaen | 16.2912 | 102.6162 | 5.79 | 5.09 | 5.89 | 5.88 | 16° South |
| Khlong Khlung | Kamphaeng Phet | 16.2016 | 99.7205 | 5.48 | 4.91 | 5.72 | 6.11 | 16° South |
| Maha Sarakham | Maha Sarakham | 16.0147 | 103.215 | 5.92 | 5.18 | 5.90 | 5.95 | 15° South |
| Yasothon | Yasothon | 15.7924 | 104.1568 | 6.09 | 5.09 | 5.97 | 6.04 | 15° South |
| Nakhon Sawan | Nakhon Sawan | 15.6868 | 100.1151 | 5.98 | 5.19 | 5.93 | 6.09 | 15° South |
| Warin | Ubon Ratchathani | 15.6451 | 105.2233 | 5.75 | 4.89 | 5.87 | 6.08 | 15° South |
| Si Sa Ket | Si Sa Ket | 15.121 | 104.3179 | 6.12 | 5.07 | 5.93 | 6.07 | 14° South |
| Ban Nong Laeng | Surin | 15.0202 | 103.9332 | 6.17 | 5.09 | 5.93 | 6.04 | 14° South |
| Buriram | Buriram | 15.0111 | 103.0972 | 6.13 | 5.11 | 5.98 | 6.01 | 14° South |
| Nakhon Ratchasima | Nakhon Ratchasima | 14.9712 | 102.1034 | 5.84 | 4.85 | 5.91 | 5.98 | 14° South |
| Surin | Surin | 14.8798 | 103.4925 | 6.00 | 4.94 | 5.89 | 6.11 | 14° South |
| Sing Buri | Sing Buri | 14.8682 | 100.3776 | 5.91 | 5.01 | 5.88 | 6.03 | 14° South |
| Lopburi | Lopburi | 14.8025 | 100.6181 | 5.91 | 5.01 | 5.88 | 6.03 | 14° South |
| Khun Han | Si Sa Ket | 14.6359 | 104.3635 | 5.95 | 4.88 | 5.94 | 6.10 | 14° South |
| Ang Thong | Ang Thong | 14.589 | 100.4514 | 5.91 | 5.01 | 5.88 | 6.03 | 14° South |
| Suphan Buri | Suphan Buri | 14.576 | 100.0286 | 5.91 | 5.01 | 5.88 | 6.03 | 14° South |
| Changwat Sara Buri | Saraburi | 14.5476 | 100.8977 | 5.94 | 4.99 | 5.84 | 6.06 | 14° South |
| Bang Pa-in | Phra Nakhon Si Ayutthaya | 14.2315 | 100.5796 | 5.91 | 5.01 | 5.88 | 6.03 | 14° South |
| Khlong Luang | Pathum Thani | 14.0712 | 100.6549 | 5.91 | 5.01 | 5.88 | 6.03 | 13° South |
| Pathum Thani | Pathum Thani | 14.0435 | 100.6421 | 5.94 | 4.99 | 5.84 | 6.06 | 13° South |
| Lam Luk Ka | Pathum Thani | 13.9332 | 100.7502 | 5.91 | 5.02 | 5.97 | 6.05 | 13° South |
| Bang Bua Thong | Nonthaburi | 13.92 | 100.4247 | 5.91 | 5.02 | 5.97 | 6.05 | 13° South |
| Sa Kaeo | Sa Kaeo | 13.9195 | 102.018 | 5.81 | 4.85 | 5.87 | 5.90 | 13° South |
| Pak Kret | Nonthaburi | 13.9181 | 100.4974 | 5.91 | 5.02 | 5.97 | 6.05 | 13° South |
| Nonthaburi | Nonthaburi | 13.9009 | 100.4366 | 5.91 | 5.02 | 5.97 | 6.05 | 13° South |
| Nakhon Pathom | Nakhon Pathom | 13.8667 | 100.1917 | 5.91 | 5.02 | 5.97 | 6.05 | 13° South |
| Phra Nakhon Si Ayutthaya | Phra Nakhon Si Ayutthaya | 13.8663 | 100.5645 | 5.91 | 5.02 | 5.97 | 6.05 | 13° South |
| Bang Kruai | Nonthaburi | 13.8062 | 100.483 | 5.93 | 5.00 | 5.93 | 6.07 | 13° South |
| Bang Sue | Bangkok | 13.7994 | 100.5337 | 5.91 | 5.02 | 5.97 | 6.05 | 13° South |
| Bangkok | Bangkok | 13.7512 | 100.5172 | 5.91 | 5.02 | 5.97 | 6.05 | 13° South |
| Phra Nakhon | Bangkok | 13.7326 | 100.539 | 5.91 | 5.02 | 5.97 | 6.05 | 13° South |
| Sam Phran | Nakhon Pathom | 13.7243 | 100.213 | 5.91 | 5.02 | 5.97 | 6.05 | 13° South |
| Lat Krabang | Bangkok | 13.7146 | 100.7805 | 5.91 | 5.02 | 5.97 | 6.05 | 13° South |
| Chachoengsao | Chachoengsao | 13.7018 | 101.0456 | 5.62 | 4.86 | 5.89 | 5.71 | 13° South |
| Rat Burana | Bangkok | 13.6861 | 100.5063 | 5.91 | 5.02 | 5.97 | 6.05 | 13° South |
| Bang Chak | Samut Prakan | 13.6833 | 100.5833 | 5.93 | 5.00 | 5.93 | 6.07 | 13° South |
| Bang Phli | Chachoengsao | 13.6 | 100.7164 | 5.91 | 5.02 | 5.97 | 6.05 | 13° South |
| Mueang Samut Prakan | Samut Prakan | 13.5989 | 100.5997 | 5.91 | 5.02 | 5.97 | 6.05 | 13° South |
| Bang Bo | Samut Prakan | 13.5825 | 100.8163 | 5.91 | 5.02 | 5.97 | 6.05 | 13° South |
| Samut Sakhon | Samut Sakhon | 13.5341 | 100.286 | 5.91 | 5.02 | 5.97 | 6.05 | 13° South |
| Phan Thong | Chon Buri | 13.4672 | 101.0972 | 5.65 | 4.84 | 5.85 | 5.73 | 13° South |
| Si Racha | Chon Buri | 13.1752 | 100.9246 | 5.91 | 5.02 | 5.97 | 6.05 | 13° South |
| Chon Buri | Chon Buri | 13.1604 | 101.1083 | 5.62 | 4.86 | 5.89 | 5.71 | 13° South |
| Pattaya | Chon Buri | 13.0508 | 100.9367 | 5.91 | 5.02 | 5.97 | 6.05 | 12° South |
| Bang Lamung | Chon Buri | 13.0508 | 100.9367 | 5.91 | 5.02 | 5.97 | 6.05 | 12° South |
| Ban Chang | Rayong | 12.7176 | 101.0673 | 5.62 | 4.97 | 5.86 | 5.94 | 12° South |
| Rayong | Rayong | 12.666 | 101.2802 | 5.60 | 4.98 | 5.90 | 5.92 | 12° South |
| Tha Mai | Chanthaburi | 12.6188 | 102.0176 | 5.20 | 4.48 | 5.73 | 5.64 | 12° South |
| Hua Hin | Prachuap Khiri Khan | 12.5667 | 99.9667 | 4.96 | 4.46 | 5.79 | 5.91 | 12° South |
| Chumphon | Chumphon | 10.1934 | 99.0877 | 5.36 | 4.35 | 5.50 | 6.06 | 9° South |
| Ko Pha Ngan | Surat Thani | 9.7167 | 100 | 5.76 | 4.58 | 5.43 | 6.29 | 8° South |
| Ko Samui | Surat Thani | 9.4312 | 99.9701 | 5.59 | 4.39 | 5.27 | 6.22 | 8° South |
| Surat Thani | Surat Thani | 9.1861 | 99.1976 | 5.59 | 4.39 | 5.27 | 6.22 | 8° South |
| Khao Lak | Phang Nga | 8.6146 | 98.2365 | 5.27 | 4.75 | 5.96 | 6.15 | 8° South |
| Thung Yai | Nakhon Si Thammarat | 8.1494 | 99.7316 | 5.33 | 4.42 | 5.10 | 6.03 | 7° South |
| Krabi | Krabi | 8.0733 | 98.9135 | 5.27 | 4.75 | 5.96 | 6.15 | 8° South |
| Phuket | Phuket | 7.95 | 98.3564 | 5.43 | 5.11 | 6.22 | 6.41 | 8° South |
| Rawai | Phuket | 7.7874 | 98.335 | 5.44 | 5.10 | 6.19 | 6.44 | 8° South |
| Phatthalung | Phatthalung | 7.6219 | 100.0788 | 5.67 | 4.71 | 5.31 | 6.29 | 6° South |
| Trang | Trang | 7.5661 | 99.5388 | 5.43 | 4.75 | 5.72 | 6.14 | 7° South |
| Kantang | Trang | 7.4184 | 99.5091 | 5.42 | 4.75 | 5.75 | 6.12 | 7° South |
| Hat Yai | Songkhla | 7.0202 | 100.4718 | 5.67 | 4.71 | 5.31 | 6.29 | 6° South |
| Yala | Yala | 6.5409 | 101.2806 | 5.62 | 4.90 | 5.12 | 6.24 | 5° South |
Solar Panel Tilt Angle in Thailand
So far based on Solar PV Analysis of 78 locations in Thailand, we've discovered that the ideal angle to tilt solar PV panels in Thailand varies between 19° from the horizontal plane facing South in Chiang Rai and 5° from the horizontal plane facing South in Yala.
These tilt angles are optimised for maximum annual PV output at each location for fixed-panel solar PV installations. If you click on one of the locations above, there is further detail on ideal seasonal tilt angles as well (in case your solar panels are adjustable).
Depending on where you are based in Thailand, the ideal angle to tilt your solar panels will vary by approx 14 degrees (between 19° from the horizontal plane facing South and 5° from the horizontal plane facing South).
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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Helping you assess viability of solar PV for your site
Calculate Your Optimal Solar Panel Tilt Angle: A Comprehensive Guide
Elevate the performance of your solar PV installation by utilizing our thorough guide. Determine the best panel tilt angle using real-world data, debunk prevalent misconceptions and grasp how geographical location influences solar power yield.
