Japan

Okutataragi — 1,932 MW Hydroelectric

Hydroelectric Renewable Verified

Okutataragi is a 1,932 MW hydro power plant located in Japan. View location, capacity, and technical details.

Capacity
1,932 MW

Installed

Commissioned
1970

Year online

Owner
Kansai

Operator

Location
35.24, 134.86

Coordinates

Insights

#57
largest in Japan
#115
largest Hydroelectric worldwide
#894
largest worldwide
1970
14 yrs older than avg
16
operated by Kansai
49
plants within 100 km

Technical Details

Fuel Type
Hydroelectric
Capacity
1,932 MW
Commissioned
1970
Status
Operational
Owner
Kansai
Country
Japan
Coordinates
35.241, 134.862

Estimated Carbon Footprint

Annual CO₂
162,473 t

tonnes / year

Lifetime CO₂
12,997,878 t

over ~80 yrs

Intensity
24 g

gCO₂ per kWh

Annual emissions equal to

35,320
cars / year
21,663
homes / year
7,385,158
trees to offset

Renewable source — life-cycle emissions only (materials/construction), no direct combustion. Open calculator

Nearby Stations

About this plant

The Okutataragi Hydroelectric Power Plant, with a capacity of 1932 megawatts (MW), stands as a significant contributor to Japan’s energy landscape. Owned by Kansai Electric Power Company, this facility harnesses the power of flowing water to generate electricity, playing a vital role in the country’s transition towards renewable energy sources. Located in the mountainous region of Japan, the plant utilizes the natural topography to maximize the potential for hydroelectric generation, capitalizing on the abundant water resources available in the region.

Hydropower is a renewable energy source that relies on the kinetic energy of moving water to produce electricity. In the case of Okutataragi, the plant operates on the principle of gravitational force, where water is stored in a reservoir and released through turbines, converting potential energy into mechanical energy and subsequently into electrical energy. This process is highly efficient, with modern hydroelectric plants like Okutataragi achieving efficiency rates exceeding 90%. The use of hydroelectric power not only provides a stable and reliable source of electricity but also helps to mitigate the volatility of fossil fuel markets, thereby enhancing energy security for Japan.

The environmental impact of the Okutataragi power plant is generally considered to be more favorable compared to fossil fuel-based power generation. Hydropower plants emit little to no greenhouse gases during operation, significantly reducing their carbon footprint. However, the construction and operation of large hydroelectric plants can lead to ecological disruptions, including changes to local waterways, fish habitats, and surrounding ecosystems. In the case of Okutataragi, measures are taken to minimize these impacts, including fish ladders and habitat restoration initiatives to ensure that local biodiversity is preserved as much as possible.

Regionally, the Okutataragi power plant serves as a critical asset for the Kansai region, which includes major urban centers like Osaka and Kyoto. As Japan continues to grapple with energy challenges, particularly in the aftermath of the Fukushima disaster in 2011, hydroelectric power has gained renewed emphasis as a clean energy alternative. The Okutataragi facility not only contributes to the reduction of carbon emissions but also provides a reliable source of electricity, helping to stabilize the grid and support economic activities in the region.

In conclusion, the Okutataragi Hydroelectric Power Plant embodies Japan’s commitment to sustainable energy practices. As a major player in the national grid, it highlights the importance of renewable energy sources in addressing the country’s energy needs while promoting environmental stewardship. Through its advanced technology and strategic location, Okutataragi not only meets the energy demands of today but also paves the way for a cleaner, more sustainable energy future.

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