The Ohgishima 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 1221 MW. Its primary operation relies on harnessing gas energy resources to generate bulk electricity. Operational management and ownership of the facility are handled by the OHGISHIMA POWER CO LTD, which oversees daily maintenance and grid dispatch integration. The facility was officially connected to the commercial grid in 2000, since which it has maintained regular output, playing a structured role in domestic power supply security. In terms of domestic production capacity within Japan, Ohgishima occupies the #30 position among all operational gas power plants. Its 1221 MW capacity represents a 1.27% 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 Ohgishima approximately 4.6 times smaller by comparison. Across all fuel types and electricity generation technologies country-wide, this facility accounts for 0.3404% 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 4,278,384 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 1,426,128 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 35.4954° latitude and 139.7450° longitude. Analysis of local grid infrastructure shows a density of other assets within a 50-kilometer radius. These nearby facilities include the Futtsu Power Station (gas-fired, 5040 MW), the Sodegaura (gas-fired, 3600 MW), the Yokohama (oil-fired, 3325 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.
1.22 GW
26 years old
Japan, Asia
Location
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 Plant Database
Ohgishima Power Plant: A Key Player in Japan's Energy Landscape
The Ohgishima Power Plant, with a capacity of 1221 megawatts (MW), is a significant natural gas-fired power generation facility located in Japan. Owned by Ohgishima Power Co. Ltd., this power plant plays a crucial role in the country's energy sector, particularly in the context of Japan's transition towards cleaner energy sources following the Fukushima nuclear disaster in 2011. As the nation seeks to reduce its reliance on nuclear power and fossil fuels, facilities like Ohgishima are vital in providing reliable and efficient electricity generation.
The Ohgishima Power Plant utilizes natural gas as its primary fuel source, which is considered a cleaner alternative to coal and oil. Natural gas combustion emits significantly lower levels of greenhouse gases and pollutants, making it a more environmentally friendly option for electricity generation. The plant employs advanced combined cycle technology, which enhances its efficiency by using both gas and steam turbines to produce electricity. This approach allows for the recovery of waste heat from the gas turbines, which is then used to generate additional power through steam generation, thereby maximizing the plant's overall efficiency.
In terms of environmental impact, the Ohgishima Power Plant represents a shift towards lower emissions in Japan's energy landscape. While natural gas is a fossil fuel, its combustion results in approximately 50% less carbon dioxide emissions compared to coal. However, it is important to note that the extraction and transportation of natural gas can lead to methane leaks, which are substantially more potent in terms of greenhouse gas effects than carbon dioxide. Therefore, the plant's operations must be managed carefully to mitigate these potential environmental impacts.
Regionally, the Ohgishima Power Plant serves not only as a significant source of electricity for Tokyo and its surrounding areas but also plays a strategic role in stabilizing the local grid amidst fluctuating energy demands. The plant's ability to quickly ramp up electricity production is particularly beneficial during peak demand periods, such as during hot summer months when air conditioning usage surges. Furthermore, the facility contributes to energy security in Japan by diversifying the fuel mix and providing a reliable power supply in a region that has faced challenges in energy infrastructure.
In summary, the Ohgishima Power Plant is an essential component of Japan's energy framework, leveraging natural gas as a cleaner fuel source while ensuring reliability and efficiency in electricity generation. As the country continues to evolve its energy policies and infrastructure, the role of such power plants will be pivotal in achieving a more sustainable energy future.
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Gas Power Generation: An Overview of Its Mechanisms, Benefits, and Future Prospects
Gas power generation is a significant component of the global energy landscape, characterized by the use of natural gas to produce electricity. This process typically involves either gas turbines or combined cycle gas plants. In a gas turbine, compressed air is mixed with natural gas and ignited, producing high-temperature exhaust gases that spin a turbine connected to a generator. Combined cycle plants enhance efficiency by utilizing both gas and steam turbines. After the gas turbine generates electricity, the waste heat is used to produce steam, which drives a steam turbine, thereby maximizing energy extraction from the fuel.
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