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Okuyoshino1,206 MW Hydroelectric

HydroRenewable

The Okuyoshino is a key infrastructure asset in Japan's power generation grid, located on the continent of Asia. Designated as a renewable electricity generation station, the facility features an installed capacity of 1206 MW. Its primary operation relies on harnessing hydro energy resources to generate bulk electricity. Operational management and ownership of the facility are handled by the Kansai, 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, Okuyoshino occupies the #7 position among all operational hydro power plants. Its 1206 MW capacity represents a 3.01% share of Japan's total installed hydro generating capacity, which currently stands at 40,131 MW. The largest operational hydro installation in Japan is the Okutataragi with an output of 1,932 MW, making the Okuyoshino approximately 1.6 times smaller by comparison. Across all fuel types and electricity generation technologies country-wide, this facility accounts for 0.3362% of Japan's aggregate generation capacity of 358,713 MW. Based on historical capacity factors characteristic of hydro power plants (modeled at 40% for analysis), the facility's expected annual electricity generation is calculated at approximately 4,225,824 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 1,408,608 homes. As a clean and sustainable energy project, Okuyoshino contributes to the direct displacement of greenhouse gases, preventing substantial quantities of carbon dioxide from entering the atmosphere and helping Japan advance toward its renewable energy integration targets. The physical site of the station is located at geographic coordinates 34.1178° latitude and 135.8211° longitude. Analysis of local grid infrastructure shows a density of other assets within a 50-kilometer radius. These nearby facilities include the Okuyoshino Pumped Storage Power Station (hydroelectric, 1206 MW), the Okinoshima Power Station (hydroelectric, 1206 MW), the Owase Mita (oil-fired, 875 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
1,206 MW

1.21 GW

Commissioning Year
2000

26 years old

Owner
Kansai
Location
34.1178°, 135.8211°

Japan, Asia

Location

Coordinates:: 34.117800, 135.821100
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Carbon Footprint

Zero Direct Emissions

Okuyoshino is a hydro power plant producing approximately 4226 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

Okuyoshino Hydro Power Plant: A Pillar of Renewable Energy in Japan

The Okuyoshino Power Plant, with a capacity of 1206 megawatts (MW), is one of Japan's key hydroelectric facilities, owned and operated by Kansai Electric Power Company. Located in the mountainous region of Japan, the plant harnesses the immense potential of hydroelectric power, making it a significant contributor to the country's energy landscape. As Japan continues to transition towards renewable energy sources, facilities like Okuyoshino play a crucial role in reducing reliance on fossil fuels and enhancing energy security.

Hydroelectric power, the primary fuel type for Okuyoshino, is generated by converting the kinetic energy of flowing water into electricity. The process involves the use of dams to create a reservoir where water is stored. When released, this water flows through turbines, generating electricity. Hydro power is considered a renewable energy source due to its ability to harness natural water cycles without depleting resources. This facility benefits from Japan's abundant rainfall and mountainous terrain, which provide an ideal environment for hydroelectric generation. The technical design of the plant includes advanced turbine and generator systems that optimize efficiency and output, ensuring that the facility operates at peak performance.

From an environmental perspective, hydroelectric power plants like Okuyoshino have a mixed impact. On one hand, they produce clean energy with minimal greenhouse gas emissions compared to fossil fuel plants, helping to combat climate change and reduce air pollution. On the other hand, the construction of dams and reservoirs can lead to ecological disruptions, affecting local wildlife habitats and altering natural water flows. The Okuyoshino Power Plant, while contributing to renewable energy production, must also manage these environmental challenges and work towards mitigating negative impacts on the surrounding ecosystem.

Regionally, the Okuyoshino facility is of significant importance not only for its energy production but also for its role in local economic development. The plant provides jobs and supports local communities while contributing to the stability of the regional power grid. As Japan seeks to enhance its energy independence and sustainability, the strategic use of hydroelectric power, exemplified by the Okuyoshino Power Plant, is vital. It exemplifies the country’s commitment to integrating renewable energy sources into its overall energy strategy, thus paving the way for a more sustainable future. Overall, the Okuyoshino Power Plant stands as a testament to the effectiveness of hydroelectric power in meeting Japan's energy needs while striving to maintain environmental integrity.

JapanEnergy Profile

664
Total Plants
358.7 GW
Total Capacity
NuclearGasCoalOil
Top Fuels

Hydro Power Generation: An Overview of Its Mechanism, Impact, and Future

Hydro power generation utilizes the kinetic energy of flowing water to produce electricity. This renewable energy source operates primarily through the use of hydroelectric power plants, which are strategically placed on rivers or in locations where water flow is significant. The fundamental principle behind hydro power generation is relatively straightforward: water stored in a reservoir is released, flowing through turbines that convert the water's kinetic energy into mechanical energy. This mechanical energy is then transformed into electrical energy through generators. The effectiveness of hydro power plants largely depends on the height from which water falls, known as the 'head,' and the volume of water flowing through the turbines, referred to as the 'flow rate.' Together, these factors determine the total energy output of the plant. Globally, there are approximately 7,842 hydro power plants distributed across 128 countries, with a total installed capacity of about 1,288.5 gigawatts (GW). China leads the world in hydro power generation, boasting 989 plants with a capacity of 279.9 GW. Other notable countries include Brazil with 756 plants (119.4 GW), the United States with 1,491 plants (110.2 GW), Canada with 612 plants (102.4 GW), and Madagascar, which, despite having only five plants, has a significant capacity of 91.1 GW. The extensive network of hydroelectric facilities underscores the importance of this energy source in the global power generation landscape. The advantages of hydro power generation are numerous. It is a renewable resource, making it a sustainable choice for electricity production. Hydro power plants typically have low operational costs once established, and they can be adjusted to meet fluctuating electricity demands, providing reliable baseload power. Additionally, hydroelectric plants contribute to reduced greenhouse gas emissions compared to fossil fuel-based power generation, thereby aiding in climate change mitigation efforts. However, hydro power is not without its disadvantages. The construction of large dams can lead to significant ecological and social disruptions, including the displacement of communities and alterations to local ecosystems. The creation of reservoirs can flood vast areas of land, impacting wildlife habitats and biodiversity. Moreover, hydro power generation is highly dependent on climatic conditions; droughts can significantly reduce water availability, thereby compromising electricity output. In recent years, global trends indicate a growing emphasis on renewable energy sources, with hydro power continuing to play a pivotal role. Many countries are investing in modernizing existing hydroelectric plants to enhance efficiency and reduce environmental impacts. Innovations such as small-scale hydro systems, which have a reduced ecological footprint, are gaining traction, especially in regions where large-scale projects may be infeasible. Looking ahead, the future of hydro power generation appears promising yet complex. As climate change continues to influence weather patterns, the availability of water resources for hydroelectric generation may become increasingly unpredictable. This necessitates a balancing act between harnessing hydroelectric potential and protecting the environmental and social integrity of affected regions. Continued advancements in technology and design, alongside a commitment to sustainable practices, will be crucial for the evolution of hydro power in the global energy mix. With its significant capacity and established infrastructure, hydro power remains a cornerstone of the renewable energy landscape, poised to contribute to a sustainable future.

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