World Power Plants

Jozankei120 MW Hydroelectric

HydroRenewable

Jozankei is a 120 MW hydroelectric power plant located in Hokkaido, Japan, operated by Hydropower and Dams since its commissioning in 1989. The facility utilizes water flow to generate electricity, contributing to Japan's renewable energy capacity. Jozankei ranks as the 54th largest hydro plant in Japan. With 120 MW, it represents 0.3% of the country's total hydro capacity of 40,101 MW. Japan has 90 hydro plants with a combined capacity of 40,101 MW. Compared to Japan's largest hydro plant, Okutataragi at 1,932 MW, Jozankei is approximately 6.2% the size. Hydropower is a significant component of Japan's energy mix, providing around 8% of the country's total electricity generation. The Jozankei plant harnesses the abundant water resources of Hokkaido, supporting the region's focus on renewable energy. It is situated approximately 30 km from Sapporo, the largest city in Hokkaido.

Capacity
120 MW
Commissioning Year
1989

37 years old

Owner
Hydropower and Dams
Location
42.9871°, 141.1562°

Japan, Asia

Context & rankings
  • 228. largest of 662 plants in Japan
  • #9,242 worldwide by installed capacity
  • #2,039 of 8,493 Hydroelectric plants worldwide
  • 0.04% of the installed capacity of Japan
Age & fleet comparison

37 years in operation

Hydroelectric fleet average: 42.1 years

Operator portfolio

Hydropower and Dams operates 1 plants totalling 120 MW

Regional density

30 plants within 100 km, 9,805 MW combined

Nearest plant: Hoheiko (7.9 km)

Location

Coordinates:: 42.987100, 141.156200
Open in Google Maps
Carbon Footprint

Zero Direct Emissions

Jozankei is a hydro power plant producing approximately 420 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

See Incorrect or Missing Data?

Help us improve our database by reporting any corrections or updates. Your contribution helps keep our global power plant data accurate and up-to-date.