[Table of Contents]

Plasma and Fusion Research

Volume 7, 2405115 (2012)

Regular Articles

Comparative Study of Cost Models for Tokamak DEMO Fusion Reactors
Tetsutarou OISHI, Kozo YAMAZAKI, Hideki ARIMOTO, Kanae BAN, Takuya KONDO, Kenji TOBITA1) and Takuya GOTO2)
Nagoya University, Furo-cho, Chikusa-ku, Nagoya 464-8603, Japan
Japan Atomic Energy Agency, Naka, Ibaraki 311-0193, Japan
National Institute for Fusion Science, Toki, Gifu 509-5292, Japan
(Received 9 December 2011 / Accepted 14 June 2012 / Published 13 September 2012)


Cost evaluation analysis of the tokamak-type demonstration reactor DEMO using the PEC (physics-engineering-cost) system code is underway to establish a cost evaluation model for the DEMO reactor design. As a reference case, a DEMO reactor with reference to the SSTR (steady state tokamak reactor) was designed using PEC code. The calculated total capital cost was in the same order of that proposed previously in cost evaluation studies for the SSTR. Design parameter scanning analysis and multi regression analysis illustrated the effect of parameters on the total capital cost. The capital cost was predicted to be inside the range of several thousands of M$s in this study.


reactor design, cost model, system code, demonstration reactor, tokamak, multiple regression analysis

DOI: 10.1585/pfr.7.2405115


  • [1] M. Kikuchi, R.W. Conn, F. Najmabadi and Y. Seki, Fusion Eng. Des. 16, 253 (1991).
  • [2] K. Tobita, S. Nishio, M. Sato et al., Nucl. Fusion 47, 892 (2007).
  • [3] K. Yamazaki, S. Uemura, T. Oishi, J. Garcia, H. Arimoto and T. Shoji, Nucl. Fusion 49, 055017 (2009).
  • [4] Fusion Reactor System Laboratory, JAERI-M 91-081 (1991).
  • [5] F. Najmabadi, R.W. Conn et al., UCLA report UCLA-PPG-1323 (1991).

This paper may be cited as follows:

Tetsutarou OISHI, Kozo YAMAZAKI, Hideki ARIMOTO, Kanae BAN, Takuya KONDO, Kenji TOBITA and Takuya GOTO, Plasma Fusion Res. 7, 2405115 (2012).