Japan

Tomari Nuclear Power Plant — 2,070 MW Nuclear

Nuclear Verified

Tomari Nuclear Power Plant is a 2,070 MW nuclear power plant located in Japan. View location, capacity, and technical details.

Capacity
2,070 MW

Installed

Commissioned
1971

Year online

Owner
Hokkaido Electric Power Company

Operator

Location
43.04, 140.51

Coordinates

Insights

#44
largest in Japan
#181
largest Nuclear worldwide
#737
largest worldwide
1971
17 yrs older than avg
7
operated by Hokkaido Electric Power…
14
plants within 100 km

Technical Details

Fuel Type
Nuclear
Capacity
2,070 MW
Commissioned
1971
Status
Operational
Owner
Hokkaido Electric Power Company
Country
Japan
Coordinates
43.036, 140.512
Wikipedia
Link

Carbon Footprint

Annual CO₂
184,959 t

tonnes / year

Lifetime CO₂
9,247,932 t

over ~50 yrs

Intensity
12 g

Est. gCO2/kWh

Annual emissions equivalent to

40,208
cars per year
24,661
homes per year
8,407,211
trees to offset

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

Nearby Plants

About this plant

The 泊発電所, also known as the Tomari Nuclear Power Plant, is a significant nuclear power facility located in Japan, with a total generating capacity of 2070 megawatts (MW). Owned by the Hokkaido Electric Power Company, this plant plays a crucial role in Japan’s energy sector, particularly in the Hokkaido region, where it provides a substantial portion of the electricity needed for residential and industrial use. The plant is strategically important for the region, contributing to energy security and stability, especially in the aftermath of the Fukushima nuclear disaster in 2011, which led to heightened scrutiny and regulation of nuclear energy in Japan. As a result, the Tomari Nuclear Power Plant has undergone rigorous safety assessments and improvements to ensure compliance with the new regulatory standards set forth by the Nuclear Regulation Authority (NRA) of Japan.

The Tomari facility utilizes nuclear fuel, specifically enriched uranium, to generate electricity through a process of nuclear fission. In nuclear reactors, uranium atoms are split to release a significant amount of energy, which is then used to heat water, producing steam that drives turbines to generate electricity. The plant has multiple reactors, designed to operate efficiently while adhering to strict safety protocols. The technology employed at the Tomari Nuclear Power Plant reflects advancements in nuclear engineering, with a focus on minimizing the risk of accidents and managing radioactive waste efficiently.

Environmental considerations are integral to the operation of the Tomari Nuclear Power Plant. Nuclear energy is often lauded for its low greenhouse gas emissions compared to fossil fuel-based power generation, which contributes to climate change. However, concerns regarding radioactive waste management and the potential impact of nuclear accidents remain significant. The Tomari facility has implemented various measures to mitigate its environmental footprint, including advanced waste disposal techniques and continuous monitoring of radiation levels in the surrounding area. Despite these efforts, public perception of nuclear energy in Japan remains cautious, influenced by past incidents and ongoing debates about energy policy.

Regionally, the Tomari Nuclear Power Plant serves as a vital energy source for Hokkaido, an island region that relies heavily on energy imports. The plant’s ability to provide a stable and reliable power supply helps support the local economy, industrial growth, and residential energy demands. In a broader context, the facility is part of Japan’s strategy to diversify its energy sources and reduce dependence on imported fossil fuels, aligning with national goals for energy self-sufficiency and sustainability. As Japan continues to navigate its energy landscape post-Fukushima, the Tomari Nuclear Power Plant stands as a key player in the balance between energy needs, environmental responsibility, and public safety.

More Nuclear 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.