Qualla: Takahama Nuclear Power Plant

Takahama Nuclear Power Plant: Introduction

Mon, 16 Feb 2026 00:00:00 GMT

Photo credit Hirorinmasa, CC BY-SA 3.0. On 29 February 2016, something almost absurd happened at a nuclear power plant in Fukui Prefecture. Reactor Unit 4 at the Takahama Nuclear Power Plant, restarted just three days earlier after years of legal battles and public opposition, shut itself down exactly one second after it began generating electricity. A main transformer failure had tripped the system. The reactor that courts had fought over, that protesters had marched against, that engineers had spent years preparing to restart, produced a single second of power before going silent again. In that one-second flicker lay the whole tangled story of Japan's post-Fukushima nuclear struggle.

Image: Hirorinmasa | CC BY-SA 3.0

Takahama Nuclear Power Plant: Four Reactors on Wakasa Bay

Mon, 16 Feb 2026 00:00:00 GMT

Photo credit Hirorinmasa, CC BY-SA 3.0. The Takahama Nuclear Power Plant occupies roughly one square kilometer of coastline in the town of Takahama, Ōi District, Fukui Prefecture. Owned and operated by the Kansai Electric Power Company, the facility houses four pressurized water reactors with a combined gross capacity ...

Image: Hirorinmasa | CC BY-SA 3.0

Takahama Nuclear Power Plant: Plutonium from Cherbourg

Mon, 16 Feb 2026 00:00:00 GMT

Photo credit 藤谷良秀, CC BY-SA 3.0. On 17 April 2013, a shipment of MOX fuel left the port of Cherbourg in northern France bound for Takahama. It was the first such delivery since the Fukushima disaster two years earlier. MOX fuel, a blend containing about 7 percent plutonium recycled from spent nuclear fuel, repre...

Image: 藤谷良秀 | CC BY-SA 3.0

Takahama Nuclear Power Plant: Judges Against the Atom

Mon, 16 Feb 2026 00:00:00 GMT

Photo credit IAEA Imagebank, CC BY-SA 2.0. The courts became an unexpected battleground. On 16 April 2015, the Fukui District Court ordered Takahama's reactors to remain offline, ruling that the Nuclear Regulation Authority's safety guidelines were "lacking in rationality" and "too loose." Judge Hideaki Higuchi, who had i...

Image: IAEA Imagebank | CC BY-SA 2.0

Takahama Nuclear Power Plant: Aging Reactors and Unprecedented Extensions

Mon, 16 Feb 2026 00:00:00 GMT

Photo credit IAEA Imagebank, CC BY-SA 2.0. While the legal battles raged over Units 3 and 4, a quieter but equally significant decision was being made about the plant's oldest reactors. On 20 June 2016, Japan's Nuclear Regulation Authority approved a 20-year license extension for Units 1 and 2, authorizing them to operate...

Image: IAEA Imagebank | CC BY-SA 2.0

Takahama Nuclear Power Plant: The Stubborn Persistence of Power

Mon, 16 Feb 2026 00:00:00 GMT

Photo credit IAEA Imagebank, CC BY-SA 2.0. Takahama's decade-long saga of shutdowns, court injunctions, one-second failures, and eventual restarts mirrors Japan's broader struggle with nuclear energy. The country lacks significant domestic fossil fuel reserves, making it dependent on imported oil, gas, and coal. Nuclear p...

Image: IAEA Imagebank | CC BY-SA 2.0