Thailand - Direct Uses




Crop drying (estimated)



bathing and swimming



 geothermal heat pumps (estimated)





Total thermal installed capacity in MWt


Direct use in TJ/year


Direct use in GWh/year


Capacity factor



Country Update: There are over 1,800 hot spring manifestations in the country, exposed in the north and extended towards western and southern Thailand, with surface temperature range of 40 to 100oC. In 1986 a pilot drying house was constructed in the Sankamphaeng geothermal field to experiment with curing and drying of tobacco, bananas, chili, garlic, maize, peanuts, etc. with positive results compared to using firewood and lignite. A similar drying facility was also constructed at the Fang geothermal field using the tail water from a small binary power plant at 77oC which is still in operation. A cold storage plant was also constructed to test the cooling of lemons, onions and lichee. A third drying facility at the Maechan geothermal field is presently shut down due to maintenance and budget problems. Hot spring baths have been very popular in the country operated by the private sector as well as by local communities who are active in monitoring and preserving these hot springs. A total of 71 locations are reported, some as high as 20 MWt of installed capacity and 80 TJ/yr of utilization. Presently there are a number of geothermal heat pump facilities installed in the country, but the data is not available and can only be estimated. The estimated use for the country is 0.04 MWt and 0.3 TJ/yr for crop drying, 1.0 MWt and 12.0 TJ/yr estimated for geothermal heat pumps, and 127.470 MWt and 1,168.898 TJ/yr for bathing and swimming. This gives a total of 128.510 MWt and 1,181.198 TJ/yr for the country (Raksaskulwong, 2015).

Taken from: John W. Lund and Tonya L. Boyd
Published in Direct Utilization of Geothermal Energy 2015 Worldwide Review

Total thermal installed capacity in MWt:2.54
Direct use in TJ/year79.1
Direct use in GWh/year22.0
Capacity factor0.99

No country update papers were submitted for either WGC2005 or WGC2010.

Based on communications from Praserdvigai (2005), an estimate of 2.54 MWt and 79.1 TJ/yr are currently installed and being utilized at a 0.3 MWe binary plant at Fang in Chiang-Mai province. A small crop-drying facility and air-conditioning unit are utilizing the exhaust from the power plant.

The distribution of use is

0.04 MWt and 0.3 TJ/yr for crop drying and
2.5 MWt and 78.8 TJ/yr for bathing and swimming,

for a total of 2.54 MWt and 79.1 TJ/yr.

Taken from the paper by John W. Lund, Derek H. Freeston, and Tonya L. Boyd: "Direct Utilization of Geothermal Energy 2010 Worldwide Review"; published in Proceedings of the World Geothermal Congress 2010, Bali, Indonesia, 25-29 April 2010