The purpose of this research is to develop and articulate a cost bene t analysis (CBA) process speci cally for investments in energy security projects. This guide will assist Army analysts and agencies in preparing a CBA to support Army decision-makers in funding these capital projects. This guide will also assist analysts in identifying, quantifying, and evaluation the future costs and bene ts of alternative solutions. Note that this document/guide is intended for general use for only in the energy security functional areas and was written by modifying the U.S. Army, Cost Bene t Analysis Guide, 3rd."