Japan

Genkai — 3,478 MW Nuclear

Nuclear Verified

Genkai is a 3,478 MW nuclear power plant located in Japan. View location, capacity, and technical details.

Capacity
3,478 MW

Installed

Commissioned
1996

Year online

Owner
Kyushu

Operator

Location
33.52, 129.84

Coordinates

Insights

#23
largest in %s
#81
largest %s worldwide
#256
largest worldwide
1996
%d yrs newer than avg
8
operated by %s
35
plants within 100 km

Technical Details

Fuel Type
Nuclear
Capacity
3,478 MW
Commissioned
1996
Status
Operational
Owner
Kyushu
Country
Japan
Coordinates
33.515, 129.836

Estimated Carbon Footprint

Annual CO₂
310,766 t

tonnes / year

Lifetime CO₂
15,538,313 t

over ~%d yrs

Intensity
12 g

gCO₂ per kWh

Annual emissions equal to

67,558
cars / year
41,436
homes / year
14,125,739
trees to offset

Indicative estimate from standard life-cycle emission and capacity factors — not a measured figure. Open calculator

Nearby Stations

About this plant

The Genkai Nuclear Power Plant, located in the Saga Prefecture of Japan, is a crucial facility in the country’s energy sector, boasting a total capacity of 3,478 megawatts (MW). Owned by Kyushu Electric Power Company, Genkai plays a significant role in providing a substantial portion of the region’s electricity, contributing to the stability and sustainability of Japan’s energy supply. The plant is strategically situated near the Genkai Sea, making it an ideal location for nuclear energy generation due to its access to cooling water and transport routes.

Genkai is composed of multiple reactors, including units that utilize advanced boiling water reactor (BWR) technology. This type of reactor employs enriched uranium as fuel, which undergoes fission to release energy. The process involves splitting atomic nuclei, which generates heat used to produce steam, driving turbines to generate electricity. The use of nuclear fuel allows for a high energy output with a relatively small fuel requirement compared to fossil fuels. Additionally, the reactors at Genkai are designed with advanced safety features, including containment structures and emergency cooling systems, which are crucial for preventing accidents and minimizing risks associated with nuclear power generation.

In the context of Japan’s energy landscape, Genkai holds a pivotal position, particularly in the aftermath of the Fukushima Daiichi nuclear disaster in 2011. Following the disaster, Japan’s nuclear energy sector faced significant scrutiny, leading to the temporary shutdown of many reactors across the country. However, the Genkai plant has since undergone rigorous safety inspections and upgrades, allowing it to resume operations and contribute to Japan’s energy mix once again. As the nation seeks to balance energy needs with environmental considerations, Genkai provides a low-carbon alternative to fossil fuel-based power generation, helping Japan meet its climate goals while mitigating dependence on imported energy.

The environmental impact of the Genkai Nuclear Power Plant is multifaceted. On one hand, nuclear power generation offers a significant reduction in greenhouse gas emissions compared to coal or natural gas. This characteristic aligns with Japan’s commitment to reducing its carbon footprint and transitioning to a more sustainable energy system. On the other hand, concerns about nuclear waste management, potential accidents, and the long-term effects of radiation exposure remain critical issues that the plant and the industry must address. The management of spent nuclear fuel and radioactive waste is an ongoing challenge, necessitating robust policies and technologies to ensure safety and environmental protection.

Regionally, Genkai serves as a vital energy source for the Kyushu region, catering to a growing demand for electricity driven by industrial activities and population needs. The plant’s operation not only supports local economies through job creation and energy security but also reinforces the importance of nuclear energy in Japan’s overall energy strategy. As Japan continues to navigate the complexities of energy production, Genkai stands as a testament to the ongoing evolution of nuclear power in the country, balancing energy needs with environmental responsibilities.

More %s 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.