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Sinar Mas OKI Paper Mill power station

Coal power plant in South Sumatra, Indonesia. Approximate location -2.7504201, 105.2782015.

CoalSouth SumatraIndonesiasubcritical

Sinar Mas OKI Paper Mill power station is a 500 MW coal power station in South Sumatra, Indonesia. It is operated by PT OKI Pulp & Paper Mills [100%]. Based on its capacity (estimated), it can supply roughly 626k homes (estimated). It ranks #86 of 401 Indonesia power plants by installed capacity. In context, coal supplies about 61.5% of Indonesia's electricity; the national grid averages 680 gCO₂/kWh (18.1% low-carbon) (2024).

500MW installed capacity
625,714homes powered (est.)

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

Data status

Known data

FacilitySinar Mas OKI Paper Mill power station GEM-coal
CountryIndonesia · South Sumatra GEM-coal
Coordinates-2.7504201, 105.2782015 GEM-coal
FuelCoal GEM-coal
MW installed capacity500 MW GEM GCPT; source record
OwnerPT OKI Pulp & Paper Mills [100%] GEM-coal
Technologysubcritical GEM-coal

Calculated from dataset

CO₂ emissions2,190,000 t CO₂·a⁻¹ calculated
Capacity rank in country#86 / 401 calculated
Fuel-specific rank in country#58 / 191 calculated
Capacity vs country/fuel peers2.27× · 220 MW · n=191 calculated
Homes-powered equivalent625,714 calculated
Environmental severityC4 · 42/100 derived from coordinates

Not available

CommissionedNot available not in dataset
GWh reported / yrNot available not in dataset

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

Data provenance

The capacity and fuel fields on this page are source-record values from the upstream open dataset. They are useful for identification and ranking, but they have not been upgraded to a 2026 registry/GEM-location verified value.

capacity: GEM GCPT; fuel: GEM GCPT

In context: how this plant compares

At 500 MW, Sinar Mas OKI Paper Mill power station is well above the median coal plant in Indonesia (220 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.

Capacity vs largest coal plants in Indonesia

PLTU Paiton I Unit 7 & 8: 5,355 MW5kPLTU Paito…Weda Bay power station: 4,540 MW5kWeda Bay p…PLTU Suralaya: 3,400 MW3kPLTU Sural…Sulawesi Labota power station: 3,360 MW3kSulawesi L…Nanshan Industrial Park power station: 2,880 MW3kNanshan In…Bangko Tengah power station: 2,640 MW3kBangko Ten…Xinyi Group captive power station: 2,500 MW2kXinyi Grou…PT Halmahera Persada Lygend Nickel Smelter power station: 2,390 MW2kPT Halmahe…

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

Owner

Operated by PT OKI Pulp & Paper Mills [100%].

Climate zone & how it works

This coal plant burns coal to raise high-pressure steam that spins a turbine-generator. It sits in a tropical rainforest climate (Köppen Af) — Southern Hemisphere, latitude 2.8°S — which shapes how much energy it can produce and how its output varies through the year.

~26°Ctypical annual mean
~27°Ctypical warm-season mean
Tropical rainforest: hot and humid year-round with little seasonal variation

Climate zone & typical temperatures: Köppen-Geiger world climate classification (Kottek et al. 2006, 0.5° grid).

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 a corrosive environment (estimated ISO 9223 class C4 — High), with humidity / wetness the leading environmental stress.

C4ISO 9223 corrosivity (indicative)
42/100environmental-severity index
1.1°Cseasonal temperature swing
76 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 #58 largest coal power plant of 191 in Indonesia by capacity.

Indonesia has 191 coal power plants in this dataset, together about 101,995 MW of capacity.

Nearby power plants

Location

Coordinates -2.7504201, 105.2782015 from WRI Global Power Plant Database (CC BY 4.0). View on OpenStreetMap.

Frequently asked questions

What type of power plant is Sinar Mas OKI Paper Mill power station?

Sinar Mas OKI Paper Mill power station is a 500 MW coal power plant in South Sumatra, Indonesia.

How many homes can Sinar Mas OKI Paper Mill power station power?

Its output is enough to supply roughly 625,714 homes (estimated).

Who operates Sinar Mas OKI Paper Mill power station?

Sinar Mas OKI Paper Mill power station is operated by PT OKI Pulp & Paper Mills [100%].

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