Japan

Kazunogawa — 800 MW Hydroelectric

Hydroelectric Renewable Verified

Kazunogawa is a 800 MW hydro power plant located in Japan. View location, capacity, and technical details.

Capacity
800 MW

Installed

Commissioned
1997

Year online

Owner
Tokyo

Operator

Location
35.72, 138.87

Coordinates

Insights

#146
largest in Japan
#469
largest Hydroelectric worldwide
#3,010
largest worldwide
1997
13 yrs newer than avg
24
operated by Tokyo
46
plants within 100 km

Technical Details

Fuel Type
Hydroelectric
Capacity
800 MW
Commissioned
1997
Status
Operational
Owner
Tokyo
Country
Japan
Coordinates
35.718, 138.874

Carbon Footprint

Annual CO₂
67,277 t

tonnes / year

Lifetime CO₂
5,382,144 t

over ~80 yrs

Intensity
24 g

Est. gCO2/kWh

Annual emissions equivalent to

14,625
cars per year
8,970
homes per year
3,058,036
trees to offset

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

Nearby Plants

About this plant

The Kazunogawa Hydroelectric Power Plant, with a capacity of 800 megawatts (MW), stands as a significant contributor to Japan’s energy sector. Located in a country that has increasingly prioritized renewable energy sources, this hydroelectric facility plays a vital role in diversifying Japan’s energy portfolio, especially in the wake of the 2011 Fukushima disaster that prompted a reevaluation of nuclear energy reliance. Owned by Tokyo Electric Power Company (TEPCO), Kazunogawa exemplifies the transition toward cleaner energy alternatives and supports the national goal of reducing greenhouse gas emissions.

The plant operates on hydroelectric power, a renewable fuel type that generates electricity through the movement of water. By harnessing the kinetic energy produced by flowing water, typically from rivers or dams, hydroelectric power plants like Kazunogawa convert this natural force into electricity using turbines. The process is efficient and sustainable, as it relies on the water cycle and does not deplete resources. Additionally, hydroelectric power is one of the most cost-effective energy sources once the infrastructure is in place, providing a stable energy supply with relatively low operating costs.

Kazunogawa’s environmental impact is generally favorable compared to fossil fuel plants. It contributes to lower carbon emissions and helps mitigate air pollution, which is crucial for Japan, given its urbanized landscape and high population density. However, hydroelectric projects can have ecological consequences, such as altering local ecosystems, affecting fish migration patterns, and impacting water quality. In response to these challenges, modern hydroelectric facilities often incorporate measures to minimize environmental disruption, such as fish ladders and controlled water release systems to maintain river health.

Regionally, the Kazunogawa plant not only supports the local economy by providing jobs and fostering infrastructure development but also enhances energy security for Japan. As the nation aims to achieve a more balanced energy mix, the plant serves as a critical asset in meeting peak demand periods, especially during the hot summer months when electricity consumption spikes. Furthermore, the facility’s capacity to provide baseload power complements intermittent renewable sources like solar and wind, ensuring a stable supply.

In summary, the Kazunogawa Hydroelectric Power Plant is a key player in Japan’s energy landscape, contributing significantly to the country’s renewable energy goals while addressing environmental challenges. Its operational efficiency and regional importance underscore the role of hydroelectric power in transitioning toward a more sustainable and secure energy future.

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