Olkiluoto Nuclear Power Plant, Nuclear power facility in Eurajoki, Finland.
The facility consists of three reactors located on an island off the western coast of Finland, producing a large portion of Finnish electricity. The reactor buildings sit directly by the sea and are connected to the mainland through roads and supply lines.
The first reactor was started in 1974 and went online in 1979, the second followed in 1980, and the third after a long construction period in 2022. These development steps made Finland one of the major nuclear energy producers in Northern Europe.
The name comes from Finnish and refers to the natural island where the facility stands. Guided tours and information centers show visitors how the reactors operate and what safety systems are used.
The site lies roughly 12 miles (20 kilometers) north of Rauma and can be reached by a road from the mainland. Visitors must register in advance for tours, as access to the site is controlled for security reasons.
The waste heat is used for the northernmost vineyard in the world, where Zilga grapes grow despite the cold climate. This vineyard shows how residual heat from energy production can be reused in unusual ways.
Location: Eurajoki
Inception: 1973
Website: https://tvo.fi/tuotanto/laitosyksikot.html
GPS coordinates: 61.23667,21.44222
Latest update: December 4, 2025 23:05
This collection brings together nuclear power plants that have shaped the history of civilian nuclear energy. Some experienced accidents that changed the world’s view of nuclear energy. Chernobyl in Ukraine remains a symbol of the 1986 disaster, while Fukushima in Japan showed the risks of natural events. Three Mile Island in Pennsylvania paused the building of new reactors in the US for many years. Other sites are among the largest in the world, like Kashiwazaki-Kariwa in Japan or Bruce in Canada. Many places are facing challenges today, such as the Zaporijia plant in Ukraine. The collection also includes projects that tried to push the technical limits of this energy. Superphénix in France and Monju in Japan explored new types of reactors, with mixed results. Some facilities, like Bataan in the Philippines, were never operational despite being fully built. Others, like Oyster Creek or Tokai, helped start nuclear work in their countries. From Siberia to the United Arab Emirates, from Canada to India, these sites tell stories about energy choices, technical progress, failures, and questions that have surrounded this source of power for more than sixty years.
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