Full Content is available to subscribers

Subscribe/Learn More  >

Fusion: Go Small to Go Fast

[+] Author Affiliations
Giorgio Locatelli

University of Leeds, Leeds, UK

Paper No. ICONE25-66353, pp. V005T05A014; 10 pages
  • 2017 25th International Conference on Nuclear Engineering
  • Volume 5: Advanced and Next Generation Reactors, Fusion Technology; Codes, Standards, Conformity Assessment, Licensing, and Regulatory Issues
  • Shanghai, China, July 2–6, 2017
  • Conference Sponsors: Nuclear Engineering Division
  • ISBN: 978-0-7918-5783-0
  • Copyright © 2017 by ASME


This paper presents the business case for small fusion reactors. The conventional view in fusion research is that “economy of scale” means that small reactors are not economically viable compared to their larger counterparts. However, empirical evidence shows how the importance of the “economy of scale” is overrated. Firstly several studies show that large investment projects are usually delivered over budget and late. Large projects (or megaprojects) are more likely to go over budget and larger the project greater the overall risk. On the contrary, small plants are more manageable investments. Firstly, for the same power installed, there is more chance to exploit the advantages from learning and co-siting economies. Since the overall investment is a fraction of a large plant, the overall “bankability” is better and the financing easier. Secondly, small plants are more easily usable for cogeneration and load following. This is becoming a fundamental design criteria for power plants to be delivered after 2030. Lastly, the division of a large investment into smaller investments provides investors with “degrees of freedom” to hedge some of the risks and exploit valuable opportunities. The “Real Options approach” is a mathematical framework able to price these options. In summary, small fusion reactors can represent a more credible and faster route to deployment than large fusion reactors.

Copyright © 2017 by ASME



Interactive Graphics


Country-Specific Mortality and Growth Failure in Infancy and Yound Children and Association With Material Stature

Use interactive graphics and maps to view and sort country-specific infant and early dhildhood mortality and growth failure data and their association with maternal

Citing articles are presented as examples only. In non-demo SCM6 implementation, integration with CrossRef’s "Cited By" API will populate this tab (http://www.crossref.org/citedby.html).

Some tools below are only available to our subscribers or users with an online account.

Related Content

Customize your page view by dragging and repositioning the boxes below.

Related eBook Content
Topic Collections

Sorry! You do not have access to this content. For assistance or to subscribe, please contact us:

  • TELEPHONE: 1-800-843-2763 (Toll-free in the USA)
  • EMAIL: asmedigitalcollection@asme.org
Sign In