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Sunkosi Hydroelectric Power Plant Nepal

Hydro power plant in Bagmati Zone, Nepal. Approximate location 27.7806, 85.917.

HydroBagmati ZoneNepalrun-of-riverPre Construction

Sunkosi Hydroelectric Power Plant Nepal is a 10 MW hydro power plant in Bagmati Zone, Nepal. It is operated by Kalika Energy [100%]. Based on its capacity (estimated), it can supply roughly 10k homes (estimated). It ranks #13 of 14 Nepal power plants by installed capacity. As a non-combustion source, it has no direct CO₂ emissions from generation. In context, hydro supplies about 98.8% of Nepal's electricity; the national grid averages 24 gCO₂/kWh (100.0% low-carbon) (2024).

10Legacy source-record capacity
10,111homes powered (est.)

Plant data: WRI Global Power Plant Database (CC BY 4.0), id GEODB0044207.

Data status

Known data

FacilitySunkosi Hydroelectric Power Plant Nepal WRI
CountryNepal · Bagmati Zone WRI
Coordinates27.7806, 85.917 WRI
FuelHydro WRI
MW installed capacity10 MW WRI source record; scope not independently normalised
OwnerKalika Energy [100%] WRI
Technologyrun-of-river WRI

Calculated from dataset

Capacity rank in country#13 of 14 calculated
Fuel-specific rank in country#12 of 12 calculated
Capacity vs country/fuel peers0.22× · 45 MW median · 12 peers calculated
Homes-powered equivalent10,111 calculated
Climate13.6°C · HDD 1,586 derived from coordinates
Environmental severityC2 · 27/100 derived from coordinates

Not available

CommissionedNot 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 10 MW, Sunkosi Hydroelectric Power Plant Nepal is below the median hydro plant in Nepal (45 MW). Technically it is described as run-of-river. Its current lifecycle status is “pre construction” — so it is not yet, or no longer, generating at full output. 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 Nepal

Kali Gandaki Hydroelectric Power Plant Nepal: 144 MW144Kali Ganda…Middle Marsyangdi Hydroelectric Power Plant Nepal: 70 MW70Middle Mar…Marsyangdi Hydroelectric Power Plant Nepal: 69 MW69Marsyangdi…Khimti Hydroelectric Power Plant Nepal: 60 MW60Khimti Hyd…Kulekhani-I Hydroelectric Power Plant Nepal: 60 MW60Kulekhani-…Bhote Koshi Hydroelectric Power Plant Nepal: 45 MW45Bhote Kosh…Kulekhani-II Hydroelectric Power Plant Nepal: 32 MW32Kulekhani-…Trishuli Hydroelectric Power Plant Nepal: 24 MW24Trishuli H…

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

Owner

Operated by Kalika Energy [100%].

Local climate & thermal context

This hydro plant converts the energy of falling or flowing water through hydro turbines. It sits in a subtropical highland climate (Köppen Cwb) — Northern Hemisphere, latitude 27.8°N — which shapes how much energy it can produce and how its output varies through the year.

13.6°Cannual mean temp
1,586heating degree-days (base 18°C)
2cooling degree-days (base 18°C)
2,123 melevation

Monthly mean temperature

J: 7 °CJF: 8 °CFM: 12 °CMA: 15 °CAM: 16 °CMJ: 18 °CJJ: 18 °CJA: 18 °CAS: 17 °CSO: 15 °CON: 11 °CND: 8 °CD18 °C

Heating degree-days here run 35% 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: 36/100 — this site sits in the mid third of the power plants we cover by heating degree-days.

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 mild atmospheric environment (estimated ISO 9223 class C2 — Low), with humidity / wetness the leading environmental stress.

C2ISO 9223 corrosivity (indicative)
27/100environmental-severity index
11.1°Cseasonal temperature swing
796 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 #12 largest hydro power plant of 12 in Nepal by capacity.

Nepal has 12 hydro power plants in this dataset, together about 558 MW of capacity.

Nearby power plants

Location

Coordinates 27.7806, 85.917 from WRI Global Power Plant Database (CC BY 4.0). View on OpenStreetMap.

Frequently asked questions

What type of power plant is Sunkosi Hydroelectric Power Plant Nepal?

Sunkosi Hydroelectric Power Plant Nepal is a 10 MW source-record hydro power plant in Bagmati Zone, Nepal.

How many homes can Sunkosi Hydroelectric Power Plant Nepal power?

Its output is enough to supply roughly 10,111 homes (estimated).

Who operates Sunkosi Hydroelectric Power Plant Nepal?

Sunkosi Hydroelectric Power Plant Nepal is operated by Kalika Energy [100%].

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