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PANNIAR

Hydro power plant in Kerala, India. Approximate location 9.9731, 77.0281.

HydroKeralaIndia

PANNIAR is a 30 MW hydro power plant in Kerala, India. Based on reported annual generation of 114 GWh, it can supply roughly 32,571 homes. It ranks #992 of 1,908 India power plants by installed capacity. Commissioned in 1982, it is around 44 years old — long-established. As a non-combustion source, it has no direct CO₂ emissions from generation. In context, hydro supplies about 8.6% of India's electricity; the national grid averages 670 gCO₂/kWh (26.7% low-carbon) (2025).

30MW installed capacity
114GWh reported / yr
32,571homes powered
1982commissioned (~44 yrs)

Plant data: WRI Global Power Plant Database (CC BY 4.0), id IND0000323.

Reported generation trend

2014: 154 GWh20142015: 173 GWh20152016: 62 GWh20162017: 129 GWh20172018: 114 GWh2018173 GWh

Annual generation (GWh), 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 savanna climate (Köppen Aw) — Northern Hemisphere, latitude 10.0°N — which shapes how much energy it can produce and how its output varies through the year.

22.8°Cannual mean temp
0heating degree-days (base 18°C)
1,762cooling degree-days (base 18°C)
848 melevation

Monthly mean temperature

J: 21 °CJF: 22 °CFM: 24 °CMA: 25 °CAM: 25 °CMJ: 23 °CJJ: 22 °CJA: 22 °CAS: 23 °CSO: 23 °CON: 22 °CND: 21 °CD25 °C

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.

How it compares & nearby plants

The #176 largest hydro power plant of 233 in India by capacity.

India has 233 hydro power plants in this dataset, together about 45,562 MW of capacity.

Nearby power plants

Location

Coordinates 9.9731, 77.0281 from WRI Global Power Plant Database (CC BY 4.0). View on OpenStreetMap.

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