Lf CHAPTER IV, SECTION 3 SECTION 3 ELECTRIC POWER GENERATION AND DISTRIBUTION The electric power generation and distribution function was the responsibility of a Superintendent, who wasassisted by Assistant Super- intendents for both electric power and water facilities. Upon completion of roll-up after RED- WING,all power plants were de-activated except those on Elmer, Fred, and David. About 80% of the power required for Fred was supplied by cable from Elmer, which source was augmented by three 150-kw Caterpillar units located adjacent to Building 539 on Fred. As construction activity for Operation HARDTACK increased, power demands at Elmer and Fred increased progressively at these two sites, and it became necessary to re-activate the Fred plant and then augument the generating capacities at each site with portable units. At times, there were three separate plants in operation at both Elmer and red. units located outside the station. During the period of replacement, five 150-kw Caterpillar units were used to provide the required power. Because of the blast consideration, the large radiators for the new 300-kw units in Station 500 were located within the wingwalls of the plant, and as a result this plant had to be op- erated with rather high temperatures. As the off-island camps were being constructed, power demands were met by the use of portable generators until the camp power plant could be activated. These plants were set up in expendable structures, which also served to house the distillation plant. One crew operated both plants; this was possible through onthe-job training of selected personnel. Plants at Wotho, Rongelap, Utirik, and Ujelang were operated by the Contractor. All other off-atoll plants were operated by Air Force personnel During Operation HARDTACK, the old and service calls were made by Contractor per- were replaced by three 300-kw units, which had to be augumented for peak operation by the temporary installation of three 150-kw portable Of particular significance in power generation and distribution was the operating, refuel- Fairbanks-Morse units at Nan Station 500 plant sonnel to these camps at scheduled intervals. (Neg. No. W-718-5) Figure No. 4-13. Page 422 Four 1000-KW Generators — Building 339 — Elmer.