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KOSI

Hydro power plant in Bihar, India. Approximate location 26.497, 86.9549.

HydroBiharIndia

KOSI is a 20 MW hydro power plant in Bihar, India. Based on its capacity (estimated), it can supply roughly 20,022 homes (estimated). It ranks #1195 of 1,908 India power plants by installed capacity. Commissioned in 1973, it is around 53 years old — an older, legacy facility. 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).

20MW installed capacity
20,022homes powered (est.)
1973commissioned (~53 yrs)

Plant data: WRI Global Power Plant Database (CC BY 4.0), id IND0000212.

Capacity vs largest hydro plants in India

KOYNA COMPLEX: 1,956 MW2kKOYNA COMP…NATHPA JHAKRI: 1,500 MW2kNATHPA JHA…BHAKRA: 1,379 MW1kBHAKRAS.SAROVAR RBPH: 1,200 MW1kS.SAROVAR …TEESTA-III: 1,200 MW1kTEESTA-IIISHARAVATHY: 1,035 MW1kSHARAVATHYINDIRA SAGAR: 1,000 MW1kINDIRA SAG…KARCHAM WANGTOO: 1,000 MW1kKARCHAM WA…

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 humid subtropical (dry winter) climate (Köppen Cwa) — Northern Hemisphere, latitude 26.5°N — which shapes how much energy it can produce and how its output varies through the year.

25.0°Cannual mean temp
39heating degree-days (base 18°C)
2,615cooling degree-days (base 18°C)
72 melevation

Monthly mean temperature

J: 17 °CJF: 19 °CFM: 24 °CMA: 28 °CAM: 30 °CMJ: 29 °CJJ: 29 °CJA: 29 °CAS: 28 °CSO: 27 °CON: 22 °CND: 18 °CD30 °C

Heating degree-days here run 98% 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: 14/100 — 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 #189 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 26.497, 86.9549 from WRI Global Power Plant Database (CC BY 4.0). View on OpenStreetMap.

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