The BN-800 is the big brother to Russia’s BN-600 fast breeder reactor which has been supplying power to the electrical grid since 1981. This is a sodium-cooled, pool-type reactor (like the EBR-2). I think it is a big deal because successful deployment will allow Russia to close the fuel cycle, while accelerating China’s deployment of fast breeders.
Wikipedia: Designed to generate electrical power of 880 MW in total, the plant is the final step to the commercial plutonium cycle breeder. It is planned to start producing electricity in October, 2014.
…China’s first commercial-scale, 800 MWe, fast neutron reactor, to be situated near Sanming city in Fujian province will be a based upon the BN-800. In 2009 an agreement was signed that would entail the Russian BN-800 reactor design to be sold to the PRC once it is completed, this would be the first time commercial-scale fast neutron reactors have ever been exported.
Could Russian success with the BN-800 support GE-Hitachi’s marketing of PRISM – their commercial design of the infamously-terminated IFR project? We don’t know how successful the BN-800 will prove to be.
China will be getting access to more cost and technical data than any other outsiders. So if China proceeds with their agreement to build to the BN-800 design that will be encouraging.