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<br />Power Operations (Cont.) <br /> <br />Lower Basin <br /> <br />Water Year 1994 <br /> <br />On Iune I, 1987, the United States assumed operation and <br />maintenance responsibility of Hoover Powerplant and <br />associated switching stations, after the 5O-year contract with <br />operating agents (The City of Los Angeles and its <br />Department of Water and Power, and Southern California <br />Edison Company, Ltd.) expired. The "General Regulations <br />for Generation and Sale of Power in Accordance with the <br />Boulder Canyon Project Adjustment Act", promulgated on <br />May 20, 1941, provided the basis for computation of charges <br />for electrical energy generated at Hoover Dam through May <br />31, 1987. The Department of Energy Organizational Act of <br />1977 transferred the responsibility for the power marketing <br />and transmission functions of the Boulder Canyon Project <br />from the Bureau of Reclamation (Reclamation) to the <br />Western Area Power Administration (Western). The power <br />marketing functions of Western include the responsibility for <br />promulgating charges for the sale of power. The <br />construction, power generation, operation, maintenance, and <br />replacement responsibilities associated with the ,Hoover <br />Powerplant and appurtenant works remained with <br />Reclamation. <br /> <br />Marketing of Parker-Davis power and operating the <br />transmission ~em are the responsibility of Western. <br />Reclamation continues to operate and maintain the dams <br />and their powerpJants, a function of the Lower Colorado <br />Dams Project Office. <br /> <br />Davis and Parker Powerplants are now operated by <br />Reclamation's Hoover Control Center's Supervisory Control <br />and Data Acquisition (SCADA) computer system located at <br />Hoover Dam. The SCADA system monitors and remotely <br />controls the powerplant generating units to adhere to water <br />schedules provided by Reclamation's water scheduling <br />- -branch-located-at -the-u,wer .Colorado- DliiIiS -Project, ,--- <br />Hoover Dam and power schedules provided from Western. <br /> <br />The net generation from Hoover powerplant during the 1994 <br />fiscal year (October 1, 1993 through September 30, 1994) <br />was 4,365,507,000 kilowatt-hours. <br /> <br />The unit uprating program continued with the program <br />completed in May 1993. The total Hoover powerplant <br />capacity, at the completion of uprating, is estimated to be a <br />nameplate capacity of 2,074 megawatts. <br /> <br />Water Year 1995 <br /> <br />In operation studies of Lake Mead and Lake powell for the <br />operation year which ends September 30, 1995, the amounts <br />released at Hoover Dam have been projected to satisfy both <br />downstream water requirements, including diversions by the <br />Metropolitan Water District and the Central Arizona <br />Project, while also complying with the overall requirements <br />to meet Compact, flood control, flfDl power contracts, and <br />operating criteria releases provisions. The estimated <br />monthly Hoover releases during water year 1995 total 11,101 <br />million cubic meters (9 million acre-feet). It is estimated <br />that generation from these Hoover releases will result in <br />delivery to the approved contractors of approximately 4.1 <br />billion kilowatt-hours of electrical energy. Normal routine <br />maintenance at Hoover has resumed with the completion of <br />the uprating program. The four main penstocks are <br />scheduled for inspection and repair over the next 4 years at <br />Hoover. <br /> <br />26 <br />