[en] Alternative concepts for dry storage of spent fuel at Morris Operation have been defined in a series of simplified flow diagrams and equipment schematics. The principles and status of dry storage technology are reviewed, and the technical bases for fuel rod and ventilation system cooling are discussed in some detail. Preliminary capital and operating costs have been prepared and resource and schedule requirements for implementing the concepts have been estimated. The results show dry fuel storage at the Morris facility to be technically feasible and economically attractive. The dry storage alternatives would readily complement potential basin expansion projects at the site in an integrated, multi-stage program that could provide a total storage capacity of up to 7000 tonnes of spent fuel