World Power Plants

Okuniikappu44 MW Hydroelectric

HydroRenewable

Okuniikappu is a 44 MW hydro power plant in Japan, operated by HOKKAIDO ELECTRIC POWER CO INC since 1963. Ranked #68 of 90 hydro plants in Japan, it represents 0.11% of Japan's total hydro capacity of 40,101 MW. The largest hydro plant in Japan is Okutataragi at 1,932 MW, making Okuniikappu 43.9 times smaller. Nearby plants include Takami (200 MW, Hydro), Takami Dam (200 MW, Hydro), and Niikappu (200 MW, Hydro). The facility is located in Hokkaido, approximately 80 km south of Sapporo.

Capacity
44 MW
Commissioning Year
1963

63 years old

Owner
HOKKAIDO ELECTRIC POWER CO INC
Location
42.6741°, 142.6779°

Japan, Asia

Context & rankings
  • 274. largest of 662 plants in Japan
  • #14,789 worldwide by installed capacity
  • #3,350 of 8,493 Hydroelectric plants worldwide
  • 0.01% of the installed capacity of Japan
Age & fleet comparison

63 years in operation

Hydroelectric fleet average: 42.1 years

Operator portfolio

HOKKAIDO ELECTRIC POWER CO INC operates 8 plants totalling 322 MW

Regional density

23 plants within 100 km, 2,890 MW combined

Nearest plant: Niikappu (12.4 km)

Data provenance

Source: Hokkaido

Location

Coordinates:: 42.674100, 142.677900
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Carbon Footprint

Zero Direct Emissions

Okuniikappu is a hydro power plant producing approximately 154 GWh of clean electricity per year with zero direct CO₂ emissions during operation.

Lifecycle emissions: ~24 g CO₂/kWh (manufacturing, transport, decommissioning)

Technical Details

Primary Fuel Type
Hydro
Energy Source
Renewable
Country
Japan
Continent
Asia
Data Source
Global Power Plant Database

JapanEnergy Profile

662
Total Plants
342.8 GW
Total Capacity
GasNuclearCoalOil
Top Fuels

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