
thumb|The reactor on the left, the vent stack on the right thumb|Schneller Brüter Kalkar, Fast-neutron reactor|fast [[breeder reactor SNR-300, now an amusement park]] The SNR-300 was a fast breeder sodium-cooled nuclear reactor built near the town of Kalkar, North Rhine-Westphalia, Germany. The reactor was completed but never taken online. SNR-300 was to output 327 megawatts. The project cost about 7 billion Deutsche Mark (about 3.5 billion or over $4 billion). Due to safety and political concerns, the project was abandoned in 1991. The high costs of construction and required prospective maint
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thumb|The reactor on the left, the vent stack on the right thumb|Schneller Brüter Kalkar, Fast-neutron reactor|fast [[breeder reactor SNR-300, now an amusement park]] The SNR-300 was a fast breeder sodium-cooled nuclear reactor built near the town of Kalkar, North Rhine-Westphalia, Germany. The reactor was completed but never taken online. SNR-300 was to output 327 megawatts. The project cost about 7 billion Deutsche Mark (about 3.5 billion or over $4 billion). Due to safety and political concerns, the project was abandoned in 1991. The high costs of construction and required prospective maintenance rendered its continued operation unviable from an economic point of view. The site is now the location of a theme park, Wunderland Kalkar, which incorporates much of the power plant buildings into the scenery.
== Background == In France, CEA and EDF had started to build Phénix in 1968, which was powered up in December 1973. It was a pool-type liquid-metal fast breeder reactor cooled with liquid sodium and a small-scale (gross 264/net 233 MWe) prototype fast breeder reactor, located at the Marcoule nuclear site, near Orange, France. Phénix had to be stopped for refueling every two months. Between 1990 and 1996, it was run sporadically. Despite this, Phénix, as a demonstrator was seen as a technical success.
Discovered by embedding cosine similarity (sentence-transformers MiniLM, 384-dim).