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.
Data status
Known data
Calculated from dataset
Not available
Known, modelled and calculated values are kept separate. Missing fields are shown as unavailable.
Capacity provenance
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).
Data provenance
Source of the capacity and fuel values:
capacity: GEM · 2026 · L100000408061; fuel: GEM GOGPT
In context: how this plant compares
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.
Key facts
- Share of Indonesia gas capacity
- 0.5% of 44,657 MW across 138 plants in this dataset
- Age among peers
- 35 of 99 dated gas plants in Indonesia are older
Calculated from the capacity and generation records in this dataset (WRI Global Power Plant Database (CC BY 4.0)).
Capacity vs largest gas plants in Indonesia
Installed capacity (MW), WRI Global Power Plant Database (CC BY 4.0).
Owner
Operated by PT PLN (Persero) [100%].
Climate zone & how it works
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).
Site climate & environmental severity
This site sits in an aggressive, high-corrosion environment (estimated ISO 9223 class C5 — Very high), with marine salt corrosion 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 #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.
Nearby power plants
- Arun I power station · Gas · 184.3 MW · Aceh
- PLTU NAD-Nagan Raya · Coal · 220 MW · Aceh
- Tanjung Pasir power station · Coal · 400 MW · North Sumatra
- PLTU Pangkalan Susu 1 & 2 · Coal · 400 MW · North Sumatra
Location
Coordinates 5.214774, 97.085577 from WRI Global Power Plant Database (CC BY 4.0). View on OpenStreetMap.
Frequently asked questions
What type of power plant is Arun II power station?
Arun II power station is a 240.5 MW gas power plant in Aceh, Indonesia, commissioned in 2021.
Who operates Arun II power station?
Arun II power station is operated by PT PLN (Persero) [100%].