Lahendong IV is a 80 MW geothermal power plant in North Sulawesi, Indonesia. It is operated by PLN + Pertamina Geothermal Energy. Based on its capacity (estimated), it can supply roughly 150,171 homes (estimated). It ranks #100 of 178 Indonesia power plants by installed capacity. As a non-combustion source, it has no direct CO₂ emissions from generation. In context, geothermal supplies about 4.5% 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 WRI1000778.
Installed capacity (MW), WRI Global Power Plant Database (CC BY 4.0).
Operated by PLN + Pertamina Geothermal Energy.
This geothermal plant taps underground heat to raise steam that drives a turbine. It sits in a tropical rainforest climate (Köppen Af) — Northern Hemisphere, latitude 1.3°N — which shapes how much energy it can produce and how its output varies through the year.
Monthly mean temperature
Heating degree-days here run 100% below the median power plant in this dataset — a proxy for how much extra energy heated equipment must replace through its surfaces in winter.
Climate heat-demand index: 13/100 — this site sits in the bottom third of the power plants we cover by heating degree-days.
In colder climates, uninsulated hot equipment (boilers, turbines, valves, steam lines) loses proportionally more heat to ambient air — exactly the loss Inzonex modular insulation is designed to cut.
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.
The #6 largest geothermal power plant of 10 in Indonesia by capacity.
Indonesia has 10 geothermal power plants in this dataset, together about 1,342 MW of capacity.
Coordinates 1.2542, 124.8225 from WRI Global Power Plant Database (CC BY 4.0). View on OpenStreetMap.
