The objective of this report was to assist in attaining the Army's goals in reducing energy use while still accomplishing its military missions, this Energy Engineering Analysis has been performed for the USASCH Facilities on the Islands of Hawaii and Oahu, Hawaii. Objective of the study is to assist energy-conservation administration and policy by identifying measures to be developed into Energy-Conservation Investment Programs (ECIP) projects, operation and maintenance (O & M) alteration and/or construction projects, and recommendations for improving energy utilization by means requiring little or no capital expenditure. The scope of the project included studies and field checks of buildings and utilities at each of ten designated installations under WESTCOM command, to see where most energy is used, and how its consumption can be reduced. Engineering analysis of the data was used to define technical requirements and costs of prospective ECIP projects generally requiring capital investment of more than $100,000 and evaluating their effectiveness by E/C ratio; the energy saved (millions of British Thermal Units, MBTU, per year) divided by the cost (thousands of dollars of capital) required.