Japan

Imaichi — 1,050 MW Hydroelectric

Hydroelectric Renewable Verified

Imaichi is a 1,050 MW hydro power plant located in Japan. View location, capacity, and technical details.

Capacity
1,050 MW

Installed

Commissioned
1994

Year online

Owner
Tokyo

Operator

Location
36.83, 139.66

Coordinates

Insights

#125
largest in Japan
#328
largest Hydroelectric worldwide
#2,307
largest worldwide
1994
10 yrs newer than avg
24
operated by Tokyo
68
plants within 100 km

Technical Details

Fuel Type
Hydroelectric
Capacity
1,050 MW
Commissioned
1994
Status
Operational
Owner
Tokyo
Country
Japan
Coordinates
36.830, 139.663

Estimated Carbon Footprint

Annual CO₂
88,301 t

tonnes / year

Lifetime CO₂
7,064,064 t

over ~80 yrs

Intensity
24 g

gCO₂ per kWh

Annual emissions equal to

19,196
cars / year
11,773
homes / year
4,013,673
trees to offset

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

Nearby Stations

About this plant

The Imaichi Hydro Power Plant, with a capacity of 1050 megawatts (MW), stands as a significant contributor to Japan’s energy sector. Owned by Tokyo Electric Power Company (TEPCO), this hydroelectric facility utilizes the natural flow of water to generate electricity, aligning with Japan’s commitment to renewable energy sources. Situated in the Tochigi Prefecture, the plant harnesses the power of the Watarase River, demonstrating the country’s investment in sustainable energy solutions. As Japan continues to shift its energy policy in the wake of the Fukushima nuclear disaster in 2011, hydroelectric power plants like Imaichi play an essential role in diversifying the energy mix and enhancing energy security.

Hydroelectric power is generated by converting the kinetic energy of flowing water into electricity. In the case of Imaichi, water is channeled through turbines, which convert the flow energy into mechanical energy, subsequently transformed into electrical energy through generators. This process is highly efficient and can produce large amounts of energy without the combustion of fossil fuels. Hydropower is considered one of the cleanest energy sources, as it emits negligible greenhouse gases compared to fossil fuel-based power generation. The operation of the Imaichi plant exemplifies this advantage, contributing to Japan’s goal of reducing carbon emissions and reliance on nuclear power.

Despite its many benefits, the environmental impact of hydroelectric plants must be considered. While hydroelectric power is generally more sustainable than fossil fuels, the construction and operation of dams can disrupt local ecosystems. In the case of Imaichi, measures have been implemented to mitigate the impact on aquatic life and surrounding habitats. Fish ladders and other interventions are employed to ensure that local wildlife can navigate the river ecosystem effectively. Additionally, maintaining water quality is crucial, as it affects both the environment and local communities relying on the river for their livelihoods.

Regionally, the Imaichi Hydro Power Plant serves as a vital asset to the Tochigi Prefecture and the surrounding areas. It not only provides a significant portion of the region’s electricity but also contributes to local economic activities, creating jobs and supporting infrastructure development. The plant acts as a stabilizing force in the energy grid, particularly during peak demand periods, thereby ensuring a reliable energy supply. Furthermore, the plant’s presence reinforces public awareness about renewable energy and its potential benefits, fostering community support for sustainable initiatives.

In summary, the Imaichi Hydro Power Plant is a key component of Japan’s energy landscape, playing a crucial role in providing renewable energy while addressing environmental concerns. Its efficient operation and regional significance underscore the importance of hydropower in the transition towards a more sustainable energy future.

More Hydroelectric plants

Spotted an error?

Our data is community-verified. If any detail looks wrong or out of date, suggest a correction below — our team reviews and applies approved changes across all languages.