World Power Plants

Hachioji Geothermal Power Station110 MW Geothermal

GeothermalRenewableVerified: Feb 2026

八丁原地熱発電所 is a 110 MW geothermal power plant located in Japan, operated by 九州電力株式会社. Commissioned in 1990, it utilizes geothermal energy to produce electricity. It is the largest geothermal plant in Japan, ranking 1st among the 16 geothermal plants in the country. With 110 MW, it represents 14.54% of Japan's total geothermal capacity of 756 MW. Japan has 16 geothermal plants with a combined capacity of 756 MW. This facility is equal in size to the largest geothermal plant, Hatchobaru Otake, also at 110 MW. Geothermal energy is an important part of Japan's renewable energy strategy, contributing to the country's efforts to diversify its energy sources. The volcanic activity in regions such as Kyushu provides significant geothermal resources. The plant is situated approximately 1,000 km southwest of Tokyo in Kumamoto Prefecture.

Capacity
110 MW
Commissioning Year
1990

36 years old

Owner
九州電力株式会社
Location
33.1052°, 131.1874°

Japan, Asia

Context & rankings
  • 232. largest of 662 plants in Japan
  • #9,608 worldwide by installed capacity
  • #39 of 215 Geothermal plants worldwide
  • 0.03% of the installed capacity of Japan
Age & fleet comparison

36 years in operation

Geothermal fleet average: 26.9 years

Operator portfolio

Kyushu Electric Power operates 20 plants totalling 25,114 MW

Regional density

76 plants within 100 km, 19,175 MW combined

Nearest plant: Otake (1.9 km)

Data provenance

Location

Coordinates:: 33.105173, 131.187360
Open in Google Maps
Carbon Footprint

Zero Direct Emissions

Hachioji Geothermal Power Station is a geothermal power plant producing approximately 771 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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