Editing Integral fast reactor (section)

===Reactor design and construction===
A commercial version of the IFR, [[S-PRISM]], can be built in a factory and transported to the site. This [[small modular reactor|small modular]] design (311 MWe modules) reduces costs and allows nuclear plants of various sizes (311 MWe and any integer multiple) to be economically constructed.

Cost assessments taking account of the complete life cycle show that fast reactors could be no more expensive than water-moderated water-cooled reactors, currently the most widely used reactors in the world.<ref>{{cite journal|title=BN-800 as a New Stage in the Development of Fast Sodium-Cooled Reactors |date=2004-06-01 |doi=10.1023/B:ATEN.0000041204.70134.20 |volume=96 |issue=6 |journal=Atomic Energy |pages=386–390|last1=Poplavskii |first1=V. M. |last2=Chebeskov |first2=A. N. |last3=Matveev |first3=V. I. |s2cid=96585192 }}</ref>