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Atlanta, GA|Atlanta Marriott Marquis
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Deep geologic repository progress—2025 Update
Editor's note: This article has was originally published in November 2023. It has been updated with new information as of June 2025.
Outside my office, there is a display case filled with rock samples from all over the world. It contains a disk of translucent, orange salt from the Waste Isolation Pilot Plant near Carlsbad, N.M.; a core of white-and-bronze gneiss from the site of the future deep geologic repository in Eurajoki, Finland; several angular chunks of fine-grained, gray claystone from the underground research laboratory at Bure, France; and a piece of coarse-grained granite from the underground research tunnel in Daejeon, South Korea.
J. G. Delene
Fusion Science and Technology | Volume 19 | Number 3 | May 1991 | Pages 807-812
Advanced Reactor | doi.org/10.13182/FST91-A29443
Articles are hosted by Taylor and Francis Online.
The projected cost of electricity (COE) for conventional tokamak fusion plants is compared with that from current and advanced nuclear fission and coal-fired plants. Fusion cost models were adjusted for consistency with advanced fission plants and the calculational methodology and cost factors follow guidelines recommended for cost comparisons of advanced fission reactors. The results show COEs of about 59–74 mills/kWh for the fusion designs considered. In comparison, COEs for future fission reactors are estimated to be in the 43–54 mills/kWh range with coal-fired plant COEs of about 53–69 mills/kWh ($2–3/GJ coal). The principal cost driver for the fusion plants relative to fission plants is the fusion island cost. Although the estimated COEs for fusion are greater than those for fission or coal, the costs are not so high as to preclude fusion's competitiveness as a safe and environmentally sound alternative.