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',-. '-'1 . . _v.. ~ 30 ~1 E T R 0 r 0 LIT A N W ATE II 0 1ST R 1 cr plant were utilized to deliver power at 69 kv over a short line to Parker Dam where connection is made to the Government's line. Although designed for 161 kv the transmission line from Parker Dam to Phoenix was operated temporarily at 69 kv. This line was loaded near the limit of its steady state capacity, about 26,000 kw, to relieve the severe power shortage in Arizona. It is estimated that the total amount of unused energy after May 31, 1941 will be 15,6:\:3,000,000 kwhr, 1,268,000,000 being available in the current year of operation ending May 31, 1942, and a diminishing quantity thereafter, The general shortage of power for defense production through- out the nation has made this power increasingly valuable. The two generators installed for the use of the District at Boulder power plant have sufficient capacity in excess of the District's pres- ent requirements to permit immediate delivery of at least 160,000 kw at transmission voltage. Negotiations for the delivery of en- ergy to a magnesium plant to be located near Las Vegas were begun in May 1941, and it is anticipated that a large amount of unused energy will be resold in the near future. Pm'kcr POW6/' Plant Construction of the Parker power plant was continued through- out the year by forces of the U. S. Bureau of Reclamation and un June 30,1941. the penstocks and the power house substructure had been practically completed. Considerable major equipment for the three units initially planned had been delivered, but none installed. The first generating unit is expected to be ready fbr operation in the summer of 1942. In order to supply increasing power demands in Arizona and Imperial Valley of California, the Reclamation Bureau revised the plans for the power plant to include the fourth generating unit which will raise the installed capacity to 100,000 kw, and fully develop this site. Contracts have been made for this additional equipment. The estimated cost of the complete four- unit plant is about $11,000,000, of which the District's share will ue about $5,000,000. The following contracts have been executed by the United States for sale of surplus power from this plant; Cp.rltrul Arizona Light & Power Co. ____nm._........ SJlt Rivp.r Valley Water User...' As~ociation, Arizona.. Tucsoll Gas, Electric Light und Po.....er Co., Arizollu Imperial Irri~ation District, California ......._...... .....mm._... U.S. Indiull OITu.:e, Cooliuge, Arizolla . 4/24/39 5/12/39 7/ 3/4U 6/26/40 5/19/41 30,noo "\,.1, 30,000 kv:l. 15,000 h:l, 15,000 kva. 5,000 k.....a. Tolal 95,000 ha.