World Power Plants

Onikobe15 MW Geothermal

GeothermalRenewable

Onikobe is a 15 MW geothermal power plant in Japan, operated by TOHOKU ELECTRIC POWER CO since 1975. Ranked #13 of 16 geothermal plants in Japan, Onikobe's 15 MW accounts for 1.98% of Japan's total geothermal capacity of 756 MW. The largest geothermal plant in Japan is 八丁原地熱発電所 at 110 MW, making Onikobe 7.3 times smaller. Nearby plants within 50 km include Furukawa (40.3 MW, Solar), Taiwa (28 MW, Solar), and Uenotai (27.5 MW, Geothermal). The facility is situated in Miyagi Prefecture, approximately 350 km northeast of Tokyo.

Capacity
15 MW
Commissioning Year
1975

51 years old

Owner
TOHOKU ELECTRIC POWER CO
Location
38.8098°, 140.7086°

Japan, Asia

Context & rankings
  • 407. largest of 662 plants in Japan
  • #21,163 worldwide by installed capacity
  • #176 of 215 Geothermal plants worldwide
Age & fleet comparison

51 years in operation

Geothermal fleet average: 26.9 years

Operator portfolio

TOHOKU ELECTRIC POWER CO operates 4 plants totalling 119 MW

Regional density

19 plants within 100 km, 5,408 MW combined

Nearest plant: Furukawa (17.3 km)

Location

Coordinates:: 38.809800, 140.708600
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Carbon Footprint

Zero Direct Emissions

Onikobe is a geothermal power plant producing approximately 105 GWh of clean electricity per year with zero direct CO₂ emissions during operation.

Lifecycle emissions: ~38 g CO₂/kWh (manufacturing, transport, decommissioning)

Technical Details

Primary Fuel Type
Geothermal
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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