Home / Asia / Indonesia / Wlingi - Brantas

Wlingi - Brantas — Indonesia

Hydro power plant in East Java, Indonesia. Approximate location -8.0776, 112.3311.

HydroEast JavaIndonesiaconventional storage

Wlingi - Brantas is a 54 MW hydro power plant in East Java, Indonesia. It is operated by PLN - Java Bali Generation Unit / PT. PJB. Based on its capacity (estimated), it can supply roughly 54k homes (estimated). It ranks #328 of 401 Indonesia power plants by installed capacity. Commissioned in 1979, it is around 47 years old — long-established. As a non-combustion source, it has no direct CO₂ emissions from generation. In context, hydro supplies about 7.3% of Indonesia's electricity; the national grid averages 680 gCO₂/kWh (18.1% low-carbon) (2024).

54MW installed capacity
54,061homes powered (est.)
1979commissioned (~47 yrs)

Plant data: WRI Global Power Plant Database (CC BY 4.0), id WRI1001045.

Data status

Known data

FacilityWlingi - Brantas WRI
CountryIndonesia · East Java WRI
Coordinates-8.0776, 112.3311 WRI
FuelHydro WRI
MW installed capacity54 MW GEM · 2026 · L100001023096; operating plant capacity
Verification noteQuality label backfilled from existing source-backed capacity provenance on 2026-07-05; capacity value was not changed. source-verified
OwnerPLN - Java Bali Generation Unit / PT. PJB WRI
Commissioned1979 WRI
Technologyconventional storage WRI

Calculated from dataset

Capacity rank in country#328 / 401 calculated
Fuel-specific rank in country#18 / 41 calculated
Capacity vs country/fuel peers1.80× · 30 MW · n=41 calculated
Homes-powered equivalent54,061 calculated
Climate23.5°C · HDD 0 derived from coordinates
Environmental severityC5 · 46/100 derived from coordinates

Not available

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

Source of the capacity and fuel values:

capacity: GEM · 2026 · L100001023096; fuel: WRI GPPD

In context: how this plant compares

At 54 MW, Wlingi - Brantas is well above the median hydro plant in Indonesia (30 MW). Technically it is described as conventional storage. Hydropower converts the energy of falling or flowing water into electricity; output depends on rainfall and reservoir level, and large dams also provide grid balancing and storage.

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

Key facts

Share of Indonesia hydro capacity
1.2% of 4,561 MW across 41 plants in this dataset
Age among peers
3 of 15 dated hydro 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 hydro plants in Indonesia

CirataI & II: 1,008 MW1kCirataI & …Saguling: 701 MW701SagulingTangga (asahan II): 317 MW317Tangga (as…Sigura gura (asahan II): 286 MW286Sigura gur…Musi: 216 MW216MusiJatiluhur: 187 MW187JatiluhurPB. Sudirman/Mrica: 181 MW181PB. Sudirm…Asahan I: 180 MW180Asahan I

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

Local climate & thermal context

This hydro plant converts the energy of falling or flowing water through hydro turbines. It sits in a tropical monsoon climate (Köppen Am) — Southern Hemisphere, latitude 8.1°S — which shapes how much energy it can produce and how its output varies through the year.

23.5°Cannual mean temp
0heating degree-days (base 18°C)
1,988cooling degree-days (base 18°C)
448 melevation

Monthly mean temperature

J: 24 °CJF: 24 °CFM: 24 °CMA: 24 °CAM: 24 °CMJ: 23 °CJJ: 22 °CJA: 23 °CAS: 23 °CSO: 24 °CON: 24 °CND: 24 °CD24 °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.

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.

C5ISO 9223 corrosivity (indicative)
46/100environmental-severity index
1.8°Cseasonal temperature swing
44 kmdistance to coast

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 #18 largest hydro power plant of 41 in Indonesia by capacity.

Indonesia has 41 hydro power plants in this dataset, together about 4,561 MW of capacity.

Nearby power plants

Location

Coordinates -8.0776, 112.3311 from WRI Global Power Plant Database (CC BY 4.0). View on OpenStreetMap.

Frequently asked questions

What type of power plant is Wlingi - Brantas?

Wlingi - Brantas is a 54 MW hydro power plant in East Java, Indonesia, commissioned in 1979.

Who operates Wlingi - Brantas?

Wlingi - Brantas is operated by PLN - Java Bali Generation Unit / PT. PJB.

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