Reactordle
Puzzle #54 was Kashiwazaki-Kariwa Nuclear Power Plant.
The Kashiwazaki-Kariwa Nuclear Power Plant is a large nuclear power plant on a 4.2-square-kilometer (1,000-acre) site spanning the towns of Kashiwazaki and Kariwa in Niigata Prefecture, Japan, on the coast of the Sea of Japan. It is the first nuclear power plant in the world to use an advanced boiling water reactor. The plant is owned and operated by Tokyo Electric Power Company (TEPCO), and it is the largest nuclear generating station in the world by net electrical power rating.
Read about it on Wikipedia →
What the record says
Puzzle 54 ran on 7 Sep 2026 and the answer was Kashiwazaki-Kariwa Nuclear Power Plant, played with 6 guesses against 4 columns. On the record: Country - Japan; Power band - ≥4,000 MW; Status - operational. The numbers: Grid connection - 1980s.
Beyond the grid the record adds Nominal power - 7,965 MW (≥4,000 MW); First grid connection - 1985; Operator - Tokyo Electric Power Company Holdings.
Reactordle builds its record from Wikidata - CC0 1.0. The description above comes from the same place the game credits on every reveal: English Wikipedia verbatim extract plus sourced facts, CC BY-SA 4.0. The puzzle itself is still playable in the archive, and every answer that has been and gone is listed on the past-answers page.
How it scored
- Country
- Japan
- Power band
- ≥4,000 MW
- Grid connection
- 1980s
- Status
- operational
Also on the record
- Nominal power
- 7,965 MW (≥4,000 MW)
- First grid connection
- 1985
- Operator
- Tokyo Electric Power Company Holdings