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Ngebel - Pamekasan

Hydro power plant in East Java, Indonesia. Approximate location -7.7891, 111.6167.

HydroEast JavaIndonesia

Ngebel - Pamekasan is a 2 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 2.2k homes (estimated). It ranks #394 of 401 Indonesia power plants by installed capacity. 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).

2Legacy source-record capacity
2,202homes powered (est.)

Plant data: WRI Global Power Plant Database (CC BY 4.0), id WRI1000793.

Data status

Known data

FacilityNgebel - Pamekasan WRI
CountryIndonesia · East Java WRI
Coordinates-7.7891, 111.6167 WRI
FuelHydro WRI
MW installed capacity2 MW WRI source record; scope not independently normalised
OwnerPLN - Java Bali Generation Unit / PT. PJB WRI

Calculated from dataset

Capacity rank in country#394 of 401 calculated
Fuel-specific rank in country#37 of 41 calculated
Capacity vs country/fuel peers0.07× · 30 MW median · 41 peers calculated
Homes-powered equivalent2,202 calculated
Climate21.0°C · HDD 0 derived from coordinates
Environmental severityC4 · 38/100 derived from coordinates

Not available

CommissionedNot available not in dataset
TechnologyNot available not in dataset
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

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: WRI Global Power Plant Database source-record (legacy); fuel: WRI source-record fuel

In context: how this plant compares

At 2 MW, Ngebel - Pamekasan is below the median hydro plant in Indonesia (30 MW). 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.

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).

Owner

Operated by PLN - Java Bali Generation Unit / PT. PJB. All plants by this company →

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 7.8°S — which shapes how much energy it can produce and how its output varies through the year.

21.0°Cannual mean temp
0heating degree-days (base 18°C)
1,099cooling degree-days (base 18°C)
897 melevation

Monthly mean temperature

J: 21 °CJF: 21 °CFM: 21 °CMA: 22 °CAM: 21 °CMJ: 21 °CJJ: 20 °CJA: 20 °CAS: 21 °CSO: 22 °CON: 22 °CND: 21 °CD22 °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

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)
38/100environmental-severity index
1.8°Cseasonal temperature swing
53 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 #37 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 -7.7891, 111.6167 from WRI Global Power Plant Database (CC BY 4.0). View on OpenStreetMap.

Frequently asked questions

What type of power plant is Ngebel - Pamekasan?

Ngebel - Pamekasan is a 2 MW source-record hydro power plant in East Java, Indonesia.

How many homes can Ngebel - Pamekasan power?

Its output is enough to supply roughly 2,202 homes (estimated).

Who operates Ngebel - Pamekasan?

Ngebel - Pamekasan is operated by PLN - Java Bali Generation Unit / PT. PJB.

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