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Show 76 UPDATING THE HOOVER DAM DOCUMENTS practicable amount of power and energy that can be sold at firm power and energy rates. To carry out the provisions of the law, a high voltage transmission grid is largely completed which interconnects the plants of the authorized units and participating projects of the Storage Project and effects interconnection with other Bureau projects and with public and private utility systems in the market area, which includes Arizona, Colorado, New Mexico, Utah, Wyoming, and parts of California and Nevada. Major transmission lines consist of approximately 476 miles of 345-kV transmission lines, 814 miles of 230-kV transmission lines, 315 miles of 138-kV transmission lines, and 117 miles of 115-kV transmission lines. Thirteen substations have been constructed as well as additions to three existing substations. The constructed features of the Transmission Division will be operated and maintained by the United States. Contracts covering interconnections and transmission service are in effect between the United States and the principal utilities in the Colorado River Storage Project marketing area. The utilities with which contracts are in effect consist of Arizona Public Service Company, Public Service Company of Colorado, Public Service Company of New Mexico, Pacific Power and Light Company, Utah Power and Light Company, California-Pacific Utilities Company, Colorado-Ute Electric Association, and Salt River Project Agricultural Improvement and Power District. The contract with the Utah Power and Light Company contains wheeling arrangements under which preference customers receive storage project power over the facilities of the company. The contract with California-Pacific Utilities Company also provides for use of company facilities for wheeling. Under agreements with Arizona Public Service Company, Pacific Power and Light Company, and Public Service of Colorado, the Bureau and the companies are coordinating the use of transmission facilities to provide for the interchange and transmission of power. The contracts with Colorado-Ute and Salt River provide for interconnection of facilities, interchange of electric power and energy, and for wheeling of power and energy by the United States for these two organizations. In addition to the interconnection with the utilities, the storage project is also interconnected in Colorado and Wyoming to the Bureau's Western Missouri River Basin Project transmission system and in Arizona to the Bureau's Parker-Davis Project transmission system. D.3 Powerplants and Reservoir Capacity The installed powerplant nameplate capacity (in MW), the maximum and the live reservoir storage capacity (in acre-feet), respectively, for the following four storage units are: MW Maximum (1000) Acre-Feet Live (1000) Acre-Feet Glen Canyon, Arizona-Utah Flaming Gorge, Utah-Wyoming Navajo, New Mexico-Colorado Curecanti, Colorado 950 27,000.0 25,000.0 108 3,788.9 3,749.0 0 1,708.6 1,696.0 180 1,085.2 1238 33,582.7 Comparable total figures for the 21 participating projects (10 of which were authorized by the CRSP Act of April 11, 1956, and 11 by subsequent acts of Congress) are 10 MW (Seedskadee) and 3,499,100 acre-feet. Additional powerplant capacity is authorized but not yet constructed; e.g., 133,500 kW of power on the Bonneville Unit of the Central Utah Project and a 23 MW powerplant is being planned at the Navajo Dam (see pages 65 and 81, Twenty-Eighth Annual Report of the Upper Colorado River Commission, September 30, 1976). |