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Oita Thermal Power Plant657 MW Natural Gas

Gas

The Oita Thermal Power Plant is a key infrastructure asset in Japan's power generation grid, located on the continent of Asia. Designated as a fossil fuel electricity generation station, the facility features an installed capacity of 657 MW. Its primary operation relies on harnessing gas energy resources to generate bulk electricity. To ensure flexibility and reliability, the station is also configured to utilize oil as an auxiliary or secondary fuel source. Operational management and ownership of the facility are handled by the OITA CO-OPERATIVE THERMAL POWE, which oversees daily maintenance and grid dispatch integration. The facility was officially connected to the commercial grid in 1995, since which it has maintained regular output, playing a structured role in domestic power supply security. In terms of domestic production capacity within Japan, Oita Thermal Power Plant occupies the #43 position among all operational gas power plants. Its 657 MW capacity represents a 0.68% share of Japan's total installed gas generating capacity, which currently stands at 96,324 MW. The largest operational gas installation in Japan is the Kashima Power Station with an output of 5,660 MW, making the Oita Thermal Power Plant approximately 8.6 times smaller by comparison. Across all fuel types and electricity generation technologies country-wide, this facility accounts for 0.1832% of Japan's aggregate generation capacity of 358,713 MW. Based on historical capacity factors characteristic of gas power plants (modeled at 40% for analysis), the facility's expected annual electricity generation is calculated at approximately 2,302,128 MWh. Applying domestic consumption statistics where an average household in Japan consumes 3 MWh of electricity annually, this level of production is sufficient to meet the energy demands of roughly 767,376 homes. By utilizing traditional thermal power processes, the station delivers reliable dispatchable energy to the grid, supporting grid resilience during periods of low renewable resource availability and satisfying industrial base-load demands. The physical site of the station is located at geographic coordinates 33.2672° latitude and 131.7076° longitude. Analysis of local grid infrastructure shows a density of other assets within a 50-kilometer radius. These nearby facilities include Shin-Oita Power Plant (gas, 2,825 MW), Shin-Oita Thermal Power Station (gas, 2,825 MW), Shin Oita (gas, 2,295 MW), representing a cluster of localized power assets. This geographic placement is vital for reinforcing regional distribution infrastructure and minimizing transmission line losses across this sector of Japan.

Capacity
657 MW
Commissioning Year
1995

31 years old

Owner
OITA CO-OPERATIVE THERMAL POWE
Location
33.2672°, 131.7076°

Japan, Asia

Location

Coordinates:: 33.267200, 131.707600
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Carbon Footprint490 g CO₂/kWh
Annual CO₂
1.27 Mt
2590 GWh/year × 490 g/kWh
Cumulative CO₂
39.34 Mt
Over 31 years of operation
Past Retirement
2025
1 years past expected retirement
Annual emissions equivalent to
275.9K
cars per year
169.2K
homes per year
57.7M
trees to offset

Estimates based on Gas emission factor (490 g CO₂/kWh) and capacity factor (45%). Actual emissions may vary based on operating conditions, efficiency, and fuel quality.

Technical Details

Primary Fuel Type
Gas
Energy Source
Non-Renewable
Country
Japan
Continent
Asia
Data Source
Global Power Station Database

JapanEnergy Profile

664
Total Stations
358.7 GW
Total Capacity
NuclearGasCoalOil
Top Fuels

Gas Power Generation: An Overview of Technology, Impact, and Future Trends

Gas power generation is a pivotal component of the global energy landscape, with 4,378 gas power plants operational across 113 countries, contributing a total installed capacity of 1,731.2 gigawatts (GW). The United States leads in this sector, housing 1,881 plants with a capacity of 575.0 GW, followed by Russia, Iran, Japan, and China. This technology primarily utilises natural gas as a fuel source, which is burned to produce electricity through various processes, predominantly gas turbines and combined cycle systems.

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