Tha Tum power station is a 328 MW coal power station in Prachin Buri, Thailand. It is operated by National Power Supply PCL. Based on its capacity (estimated), it can supply roughly 410k homes (estimated). It ranks #41 of 238 Thailand power plants by installed capacity. Commissioned in 1999, it is around 27 years old — long-established. In context, coal supplies about 17.8% of Thailand's electricity; the national grid averages 546 gCO₂/kWh (16.6% low-carbon) (2025).
Plant data: WRI Global Power Plant Database (CC BY 4.0), id WRI1075818.
Data status
Known data
Calculated from dataset
Not available
Known, modelled and calculated values are kept separate. Missing fields are shown as unavailable.
Data provenance
Source of the capacity and fuel values:
capacity: GEM · 2026 · L100000103579; fuel: WRI GPPD
In context: how this plant compares
At 328 MW, Tha Tum power station is below the median coal plant in Thailand (660 MW). Technically it is described as subcritical. Coal plants burn pulverised coal to raise high-pressure steam for a turbine; they run as baseload but are the most carbon-intensive mainstream source and the first targeted for retirement or efficiency retrofits.
Capacity comparison computed from the WRI Global Power Plant Database; fuel-type context is general engineering background.
Key facts
- Share of Thailand coal capacity
- 1.9% of 17,394 MW across 18 plants in this dataset
- Age among peers
- 4 of 14 dated coal plants in Thailand are older
Calculated from the capacity and generation records in this dataset (WRI Global Power Plant Database (CC BY 4.0)).
Capacity vs largest coal plants in Thailand
Installed capacity (MW), WRI Global Power Plant Database (CC BY 4.0).
Owner
Operated by National Power Supply PCL.
Local climate & thermal context
This coal plant burns coal to raise high-pressure steam that spins a turbine-generator. It sits in a tropical savanna climate (Köppen Aw) — Northern Hemisphere, latitude 13.9°N — which shapes how much energy it can produce and how its output varies through the year.
Monthly mean temperature
This site has effectively no heating season (tropical/equatorial climate), so winter heat loss is not the driver here. The thermal concern shifts to year-round process heat and humidity/heat-driven corrosion of hot equipment.
Climate normals: WorldClim 2.1 (1970–2000 monthly normals, 10 arc-min, CC BY 4.0); zone: Köppen-Geiger world climate classification (Kottek et al. 2006, 0.5° grid). Degree-days & heat-demand index computed by PowerAtlas — a modelled heat-demand proxy, not a measured site figure.
Site climate & environmental severity
This site sits in a corrosive environment (estimated ISO 9223 class C4 — High), with humidity / wetness the leading environmental stress.
Indicative estimate via the ISO 9223:2012 informative method (atmospheric corrosivity from temperature, time-of-wetness and airborne salinity), using WorldClim climate normals, the Köppen-Geiger class and coast distance. Indicative, not a measured corrosion rate.
How it compares & nearby plants
The #12 largest coal power plant of 18 in Thailand by capacity.
Thailand has 18 coal power plants in this dataset, together about 17,394 MW of capacity.
Nearby power plants
- Si Maha Phot II · Solar · 8 MW · Prachin Buri
- Si Maha Phot I · Solar · 8 MW · Prachin Buri
- Gulf NC power station · Gas · 126.5 MW · Prachin Buri
- Burapa power station · Gas · 540 MW · Chachoengsao
- Bo-Thong · Solar · 12.9 MW · Prachin Buri
- Koh Khanun power station · Gas · 114 MW · Chachoengsao
Location
Coordinates 13.9325, 101.5876 from WRI Global Power Plant Database (CC BY 4.0). View on OpenStreetMap.
Frequently asked questions
What type of power plant is Tha Tum power station?
Tha Tum power station is a 328 MW coal power plant in Prachin Buri, Thailand, commissioned in 1999.
Who operates Tha Tum power station?
Tha Tum power station is operated by National Power Supply PCL.