Core Viewpoint - The first fourth-generation commercial fast reactor in China, CFR1000, has completed its preliminary design, showcasing advancements in safety, sustainability, and economic efficiency in nuclear energy [1] Group 1: Project Overview - The CFR1000 fast reactor will have a total installed capacity of 1.2 million kilowatts [1] - Fast reactors utilize fast neutrons for nuclear reactions to generate heat for electricity production, recognized as a preferred reactor type in the fourth-generation advanced nuclear energy systems [1] Group 2: Technical Characteristics - Among the six reactor types classified as fourth-generation internationally, three are fast reactors: sodium-cooled fast reactor, gas-cooled fast reactor, and lead-cooled fast reactor [1] - The sodium-cooled fast reactor is favored due to its high breeding ratio, long-lived radioactive nuclide transmutation capability, and inherent safety features [1]