PLTU Tanjung Jati B is a 1,320 MW coal power station in Central Java, Indonesia. It is operated by PT. Central Java Power. Based on its capacity (estimated), it can supply roughly 1.7 million homes (estimated). It ranks #27 of 401 Indonesia power plants by installed capacity. Commissioned in 2006, it is around 20 years old — relatively modern. In context, coal supplies about 61.5% 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 WRI1000990.
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 4,640 MW for Tanjung Jati B 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 · L100000102714; fuel: WRI GPPD
In context: how this plant compares
At 1,320 MW, PLTU Tanjung Jati B 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.
Key facts
- Share of Indonesia coal capacity
- 1.3% of 101,995 MW across 191 plants in this dataset
- Age among peers
- 11 of 122 dated coal 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 coal plants in Indonesia
Installed capacity (MW), WRI Global Power Plant Database (CC BY 4.0).
Owner
Operated by PT. Central Java Power.
Local climate & thermal context
This coal plant burns coal to raise high-pressure steam that spins a turbine-generator. It sits in a tropical monsoon climate (Köppen Am) — Southern Hemisphere, latitude 6.4°S — 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 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 #20 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
- PLTU Tanjung Jati B - expansion · Coal · 1,324 MW · Central Java
- Pati INTP power station · Coal · 60 MW · Central Java
- Klambu/Mrica · Hydro · 1.1 MW · Central Java
- Muria nuclear power plant · Nuclear · 2,000 MW · Central Java
- PLTGU Tambak Lorok · Gas · 1,034 MW · Central Java
- PLTU Tambak Lorok · Coal · 300 MW · Central Java
Location
Coordinates -6.446, 110.7423 from WRI Global Power Plant Database (CC BY 4.0). View on OpenStreetMap.
Frequently asked questions
What type of power plant is PLTU Tanjung Jati B?
PLTU Tanjung Jati B is a 1,320 MW coal power plant in Central Java, Indonesia, commissioned in 2006.
Who operates PLTU Tanjung Jati B?
PLTU Tanjung Jati B is operated by PT. Central Java Power.