Onagawa Power Station is a crucial nuclear power generation facility located in Japan, contributing significantly to the country's energy mix with a substantial capacity of 2174 MW. Operated by Tohoku, this power plant is situated at coordinates 38.4000, 141.5000, strategically positioned to support the local grid and ensure a stable supply of electricity for both residential and industrial consumers. The facility uses advanced nuclear technology, which enables it to generate large amounts of electricity with minimal greenhouse gas emissions, aligning with Japan's energy policies focused on reducing carbon footprints and enhancing energy security. Onagawa plays an essential role in providing baseload power, vital for maintaining grid stability, especially during peak demand periods. In the wake of Japan's ongoing energy transition, the operational context of Onagawa is particularly significant. After the 2011 Fukushima disaster, the Japanese government has been working to ensure the safety and reliability of nuclear energy while also exploring renewable energy alternatives. Despite these challenges, Onagawa continues to be a key player in Japan's energy landscape, providing a reliable source of power that supports the country's commitment to sustainable energy practices. The facility's capacity allows it to meet a substantial portion of the regional electricity demand, making it a cornerstone of Japan's energy infrastructure. As Japan navigates its energy future, Onagawa Power Station exemplifies the potential of nuclear power to provide clean, reliable energy while addressing the challenges of energy security and environmental sustainability. In summary, Onagawa stands as a vital asset in Japan's power generation portfolio, ensuring that the needs of its citizens are met while contributing to the national goal of a low-carbon future.
2.17 GW
32 years old
Japan, Asia
- 39. largest of 662 plants in Japan
- #688 worldwide by installed capacity
- #171 of 514 Nuclear plants worldwide
- 0.63% of the installed capacity of Japan
32 years in operation
Nuclear fleet average: 38.1 years
Tohoku operates 5 plants totalling 9,144 MW
26 plants within 100 km, 10,695 MW combined
Location
Zero Direct Emissions
Onagawa is a nuclear power plant producing approximately 16188 GWh of clean electricity per year with zero direct CO₂ emissions during operation.
Lifecycle emissions: ~12 g CO₂/kWh (manufacturing, transport, decommissioning)
Technical Details
- Primary Fuel Type
- Nuclear
- Energy Source
- Non-Renewable
- Country
Japan- Continent
- Asia
- Data Source
- Global Power Plant Database
Onagawa Nuclear Power Plant: A Key Player in Japan's Energy Landscape
The Onagawa Nuclear Power Plant, located in the Miyagi Prefecture of Japan, is a significant facility in the country's energy sector, with a total generation capacity of 2,174 megawatts (MW). Owned by Tohoku Electric Power Company, the plant plays a crucial role in providing a stable and reliable source of electricity to the Tohoku region, which has faced various challenges in energy supply, particularly following the 2011 Fukushima nuclear disaster. The Onagawa facility consists of three reactors, with Units 1 and 2 being operational prior to the events of 2011, while Unit 3 was completed and commissioned later, reflecting advancements in nuclear safety and technology.
The Onagawa plant primarily utilizes nuclear fuel, specifically enriched uranium, which is contained within fuel rods used in the reactors. The nuclear fission process generates heat, which is then used to produce steam that drives turbines to generate electricity. This method of energy production is characterized by its low greenhouse gas emissions during operation, making it a cleaner alternative compared to fossil fuels. However, nuclear energy does pose challenges in terms of radioactive waste management and the potential risks associated with nuclear accidents. The Japanese government and Tohoku Electric have implemented stringent safety protocols and modernized the Onagawa facility to enhance its resilience against natural disasters, particularly seismic events, which are a significant concern in Japan.
In terms of environmental impact, the Onagawa Nuclear Power Plant has both positive and negative aspects. On one hand, it contributes to reducing the carbon footprint of electricity generation in Japan, helping the country meet its climate goals and reducing reliance on imported fossil fuels. On the other hand, the potential for radioactive contamination in the event of an accident remains a central concern for local communities and environmental advocates. The lessons learned from the Fukushima disaster have heightened public awareness and scrutiny regarding nuclear energy, prompting a reevaluation of safety measures and emergency preparedness at facilities like Onagawa.
Regionally, the Onagawa plant is of considerable significance as it not only supplies electricity to the Tohoku region, which includes prefectures such as Miyagi, Akita, and Fukushima, but also contributes to the economic stability of the area. The plant provides employment opportunities and supports local businesses through its operational needs. Furthermore, as Japan continues its transition towards more sustainable energy practices while balancing energy security, the Onagawa Nuclear Power Plant remains a pivotal asset in the country’s energy mix. Its operational status is crucial for maintaining grid reliability and supporting Japan's long-term energy strategy, particularly in the context of increasing renewable energy integration and efforts to reduce greenhouse gas emissions.
Nearby Power Plants
See Incorrect or Missing Data?
Help us improve our database by reporting any corrections or updates. Your contribution helps keep our global power plant data accurate and up-to-date.