Full Breakdown
Niigata Governor Considers Restart of Kashiwazaki-Kariwa Nuclear Reactor
11/19/2025, 11:00:53 PM
Approval Process for TEPCO's Reactor Restart
Niigata Governor Hideyo Hanazumi is poised to announce his decision regarding the restart of the No. 6 reactor at the Kashiwazaki-Kariwa nuclear power plant, operated by Tokyo Electric Power Company Holdings Inc. (TEPCO). This announcement is expected as early as Friday, November 19, 2025. If approved, Niigata would become the first prefecture to permit the restart of a TEPCO reactor since the Fukushima No. 1 nuclear disaster in March 2011. All reactors at the Kashiwazaki-Kariwa plant have been offline since March 2012 due to safety concerns stemming from the Fukushima incident.
Context of Nuclear Energy in Japan
The restart of the Kashiwazaki-Kariwa plant is significant as it is the largest nuclear power facility in the world, with a total capacity of 8,212 megawatts. TEPCO plans to bring back online its two largest units, No. 6 and No. 7, which can generate a combined 2,710 megawatts. The Japanese government, under Prime Minister Sanae Takaichi, is advocating for increased nuclear energy production to enhance energy security and reduce reliance on liquefied natural gas (LNG) imports. Japan has restarted 14 reactors since implementing stricter safety regulations post-Fukushima, with 11 currently operational.
Local Government Support
In a related development, Tomari Mayor Tetsunori Takahashi has indicated plans to approve the restart of the No. 3 reactor at Hokkaido Electric Power Co.'s Tomari nuclear power plant. This marks Tomari as the first municipality to express support among the five local governments involved. Mayor Takahashi emphasized the importance of safety while noting that broad understanding has been achieved among residents regarding the reactor's operations.
Economic Implications
Restarting the No. 6 reactor at Kashiwazaki-Kariwa could significantly impact Japan's energy landscape. Analysts predict that the restart may displace approximately 1 million tonnes of LNG demand in 2026, contributing to a reduction in Japan's overall LNG consumption forecasts. TEPCO has also stated that the restart could enhance its annual net profit by 100 billion yen ($644 million), which is crucial for the company following substantial compensation payouts related to the 2011 meltdown.
Official Statements & Responses
Governor Hanazumi has indicated a readiness to make a decision, stating, "I don't have anything that I need to either ask, see or think about before I reach a decision." The governor will consult with the prefectural assembly during its regular session starting December 2, 2025, to seek endorsement for his decision.
Criticism & Opposition
Despite the push for reactor restarts, there remains local opposition rooted in safety concerns. Some community members and environmental groups continue to express apprehension regarding the potential risks associated with nuclear energy, particularly in light of the Fukushima disaster's legacy.
What's Next
The upcoming press conference by Governor Hanazumi will be pivotal in determining the future of the Kashiwazaki-Kariwa nuclear power plant. The decision will also set a precedent for other local governments considering similar actions in the wake of Japan's energy policy shifts.
