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Conference Spotlight
2025 ANS Winter Conference & Expo
November 9–12, 2025
Washington, DC|Washington Hilton
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The Standards Committee is responsible for the development and maintenance of voluntary consensus standards that address the design, analysis, and operation of components, systems, and facilities related to the application of nuclear science and technology. Find out What’s New, check out the Standards Store, or Get Involved today!
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Type One Energy, TVA ink LOI in development of fusion power in Tennessee
The Tennessee Valley Authority has issued a letter of intent to fusion energy start-up Type One Energy regarding the utility’s interest in the potential deployment of Type One Energy’s fusion power plant technology at TVA’s former Bull Run fossil plant site once it is commercially ready.
Michael S. McGough, William E. Austin, George J. Knetl
Nuclear Technology | Volume 87 | Number 3 | November 1989 | Pages 648-659
Technical Paper | TMI-2: Remote Technology and Engineering / Nuclear Safety | doi.org/10.13182/NT89-A27717
Articles are hosted by Taylor and Francis Online.
The lower core support assembly (LCSA) of the Three Mile Island Unit 2 reactor was not structurally damaged during the accident. In order to permit defueling of that region of the core, the LCSA was cut to permit access. A five-axis teleoperator was developed to deliver plasma cutting, rotary grinding, and abrasive water-jetting end effectors to the LCSA. In addition, the automated cutting equipment system (ACES) manipulator and plasma system were used for vertical sectioning of the baffle plates. The ACES and the end effectors were designed, fabricated, tested, and implemented in the field by PCI Energy Services. Complex geometry sectioning was completed in a mock-up facility at chemistry and pressure conditions simulating those of the vessel, prior to actual in-vessel operations. In-vessel activities began in early May of 1988 and were completed on April 11, 1989.