generator units with space in the plant for an additional similar unit. Hach of these Diesel generator units consists of a medium speed (720 revolutions per minute with a corresponding piston speed of 1080 feet per minute), Diesel engine designed for operation on standard Navy fuel directly coupled to a moisture resistant, fungus proof 2,00 volt alternator. An exhaust heat boiler will be provided with each unit to utilize the waste heat as a source of steam for the water distillation units mentioned elsewhere in this Report. In order to insure sufficient steam for these water distillation units at times when a Diesel generator unit is operating at light load, an auxiliary electric heater with automatic controls will be incorporated in each exhaust heat boiler. The plant for Parry Island will be constructed above ground. Both the Diesel generator units and the water distillation units mentioned elsewhere in this Report will be housed in an aluminum building. This power plant will con- sist of four 1,2 KW units with space for a future fifth unit as shown on Plate Noe 23. This will permit three units to carry the estimated maximum demand of 405 KW with one unit out of service. These units will also generate at 200 volts and be similar to the units provided for the experiment islands and Eniwetok exceot for the number of cylinders and the generator capacity. This standardization will reduce to a minimum the spare parts stock requirement and the maintenarce problem. Until more information as to requirements is available and thoroughly analyzed, it is not certain whether one or two plants will be provided for Eniwetok. In either event, the plant or plants will be above ground. It is probable that one plant consisting of five 1,2 KW units or five 168 KW units Similar to those for Parry and the experiment islands will be required. Additional small plants consisting of two small low-voltage units will probably be required for the four new Photo Tower locations in addition to the one on Coral Head and on Aniyaanii. have not yet been firmed up. Exact power loads for these sites 23