Arun II power station is a 240.5 MW gas power station in Aceh, Indonesia. It is operated by PT PLN (Persero) [100%]. Based on its capacity (estimated), it can supply roughly 271k homes (estimated). It ranks #148 of 401 Indonesia power plants by installed capacity. Commissioned in 2021, it is around 5 years old — recently built. In context, gas supplies about 18.5% of Indonesia's electricity; the national grid averages 680 gCO₂/kWh (18.1% low-carbon) (2024).
Plant data: WRI Global Power Plant Database (CC BY 4.0), id GOGPT_arunii_indone.
Known, modelled and calculated values are kept separate. Missing fields are shown as unavailable.
The public capacity above is the current source-record value. A 2026 tracker candidate lists 184 MW for Arun I power station, but it is not used as the public primary value until scope is verified (unit vs operating vs installed/project total).
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 · 2026 · L100000408061; fuel: GEM GOGPT
At 240.5 MW, Arun II power station is well above the median gas plant in Indonesia (150 MW). Technically it is described as Engine. Gas plants burn natural gas either in open-cycle turbines for fast peaking, or in combined-cycle units that recover exhaust heat in an HRSG to reach roughly 55–62% efficiency — the cleanest-burning fossil option.
Capacity comparison computed from the WRI Global Power Plant Database; fuel-type context is general engineering background.
Installed capacity (MW), WRI Global Power Plant Database (CC BY 4.0).
Operated by PT PLN (Persero) [100%].
This gas plant burns natural gas in a turbine — often in a combined-cycle setup — to generate electricity. It sits in a tropical rainforest climate (Köppen Af) — Northern Hemisphere, latitude 5.2°N — which shapes how much energy it can produce and how its output varies through the year.
Climate zone & typical temperatures: Köppen-Geiger world climate classification (Kottek et al. 2006, 0.5° grid).
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.
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.
The #52 largest gas power plant of 138 in Indonesia by capacity.
Indonesia has 138 gas power plants in this dataset, together about 44,657 MW of capacity.
Coordinates 5.214774, 97.085577 from WRI Global Power Plant Database (CC BY 4.0). View on OpenStreetMap.
Arun II power station is a 240.5 MW gas power plant in Aceh, Indonesia, commissioned in 2021.
Its output is enough to supply roughly 270,871 homes (estimated).
Arun II power station is operated by PT PLN (Persero) [100%].
