The effect of optimal wall loads and blanket technologies on the cost of fusion electricity

This paper presents a discussion of trends in fusion economics based on tec hnology, as well as, physics arguments. Based on relatively simple physics considerations, supported by detailed systems code calculations, it is show n that optimal wall loads are not high. The results of systems code calcula tions, focussing on the economic impact of different blanket technologies, are described. These suggest that the economically favourable thermodynamic efficiencies of some blankets capable of operating at higher temperatures may be counterbalanced by the economic penalties of shorter lifetimes. (C) 2000 Published by Elsevier Science B.V.