Home / Asia / Thailand / Ang Thong

Ang Thong

Solar power plant in Prachuap Khiri Khan, Thailand. Approximate location 11.422, 99.556.

SolarPrachuap Khiri KhanThailandPV

Ang Thong is a 24 MW solar power plant in Prachuap Khiri Khan, Thailand. Based on its capacity (estimated), it can supply roughly 10k homes (estimated). It ranks #101 of 238 Thailand power plants by installed capacity. Commissioned in 2016, it is around 10 years old — relatively modern. As a non-combustion source, it has no direct CO₂ emissions from generation. In context, solar supplies about 5.3% of Thailand's electricity; the national grid averages 546 gCO₂/kWh (16.6% low-carbon) (2025).

24Source-backed capacity
10,211homes powered (est.)
2016commissioned (~10 yrs)

Plant data: WRI Global Power Plant Database (CC BY 4.0), id WKS0067792.

Data status

Known data

FacilityAng Thong WRI
CountryThailand · Prachuap Khiri Khan WRI
Coordinates11.422, 99.556 WRI
FuelSolar WRI
MW installed capacity24 MW WRI source record; scope not independently normalised
Commissioned2016 WRI
TechnologyPV WRI

Calculated from dataset

Capacity rank in country#101 of 238 calculated
Fuel-specific rank in country#9 of 141 calculated
Capacity vs country/fuel peers3.24× · 7 MW median · 141 peers calculated
Homes-powered equivalent10,211 calculated
Climate27.2°C · HDD 0 derived from coordinates
Environmental severityC5 · 49/100 derived from coordinates

Not available

OwnerNot available not in dataset
GWh reported / yrNot available not in dataset
CO₂ emissionsnot applicable not applicable

Known, modelled and calculated values are kept separate. Missing fields are shown as unavailable.

Data provenance

The capacity and/or fuel fields on this page include a source-backed provenance label from GEM, an official registry, Wikidata, OSM, or a cross-source match.

capacity: GEM tracker 2026 (location L100000831073); fuel: WRI source-record fuel

In context: how this plant compares

At 24 MW, Ang Thong is well above the median solar plant in Thailand (7 MW). Technically it is described as PV. Solar PV converts sunlight directly into electricity with no moving parts or fuel; output varies by time of day and weather, so it pairs with storage or flexible backup.

Capacity comparison computed from the WRI Global Power Plant Database; fuel-type context is general engineering background.

Capacity vs largest solar plants in Thailand

Nakhon Sawan Solar Power Plant: 101 MW101Nakhon Saw…Phitsanulok Solar Power Plant: 101 MW101Phitsanulo…Lampang Solar Power Plant: 90 MW90Lampang So…Lopburi - NED Solar Power Plant: 55 MW55Lopburi - …Prakhon Chai: 50 MW50Prakhon Ch…Lopburi SSP: 40 MW40Lopburi SSPSai Phet Solar Power Plant: 29 MW29Sai Phet S…Bangchak III: 25 MW25Bangchak I…

Installed capacity (MW), WRI Global Power Plant Database (CC BY 4.0).

Local climate & thermal context

This solar plant converts sunlight directly into electricity with photovoltaic panels. It sits in a tropical monsoon climate (Köppen Am) — Northern Hemisphere, latitude 11.4°N — which shapes how much energy it can produce and how its output varies through the year.

27.2°Cannual mean temp
0heating degree-days (base 18°C)
3,370cooling degree-days (base 18°C)
35 melevation

Monthly mean temperature

J: 26 °CJF: 27 °CFM: 28 °CMA: 29 °CAM: 29 °CMJ: 28 °CJJ: 28 °CJA: 28 °CAS: 27 °CSO: 27 °CON: 26 °CND: 25 °CD29 °C

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.

Solar PV loses ~0.35%/°C above 25°C cell temperature — roughly 1.4% at warm-season highs here (estimate).

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

For a plant’s outdoor hardware — heat-recovery steam generators (HRSG), expansion joints, valves, flanges and their insulation — the local climate sets how fast unprotected steel and coatings degrade. This site sits in an aggressive, high-corrosion environment (estimated ISO 9223 class C5 — Very high), with marine salt corrosion the leading environmental stress.

C5ISO 9223 corrosivity (indicative)
49/100environmental-severity index
3.6°Cseasonal temperature swing
28 kmdistance to coast

Higher environmental severity is exactly where protective removable insulation pays back most: a sheltered micro-climate slows corrosion, UV and thermal-cycling damage and extends outdoor hardware service life. This is an indicative site-climate context — not a condition assessment of any specific plant or operator.

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 #9 largest solar power plant of 141 in Thailand by capacity.

Thailand has 141 solar power plants in this dataset, together about 1,416 MW of capacity.

Nearby power plants

Location

Coordinates 11.422, 99.556 from WRI Global Power Plant Database (CC BY 4.0). View on OpenStreetMap.

Frequently asked questions

What type of power plant is Ang Thong?

Ang Thong is a 24 MW source-record solar power plant in Prachuap Khiri Khan, Thailand, commissioned in 2016.

How many homes can Ang Thong power?

Its output is enough to supply roughly 10,211 homes (estimated).

Built from open public data; no personal information. Operate this site? Request a correction or removal.