U.S. seeks wide-head-range runner for 2,078-MW Hoover

The Bureau of Reclamation seeks bids for supply of a wide-head-range turbine runner and wicket gates for 2,078-MW Hoover Dam on the Colorado River in Arizona and Nevada. Bids are due Nov. 10.

Reclamation requested information in February on small businesses capable of supplying the special turbine and wicket gates. However, the current solicitation is unrestricted.

Reclamation plans to install new wide-head-range turbines at Hoover that will allow more efficient power generation over a wider range of lake levels than existing turbines. The agency hopes to regain capacity lost as a result of drought-related low water levels and to improve unit efficiency.

The bureau seeks bids for design, manufacturing, supply, and delivery of a vertical-shaft Francis wide-head-range turbine runner. Work is to include computational fluid dynamics, design, physical modeling, hydraulic turbine manufacturing, and supply of one turbine for Unit A8, including associated runner cones and coupling bolts. Design and supply of one set of 21 wicket gates also is included. The government is to supply labor to remove existing equipment and install new equipment.

A solicitation notice may be obtained from the Federal Business Opportunities Internet site, www.fbo.gov, by entering Solicitation No. R11PS30061 in the "Keyword/Solicitation #" box. Bids are due Nov. 10.

For information, contact Rita Horkan, Contract Specialist, Bureau of Reclamation - LC - Lower Colorado Regional Office, P.O. Box 61470, Boulder City, NV 89006; (1) 702-293-8036; E-mail: rhorkan@usbr.gov.

Contracts awarded for breakers, pressure valves at Hoover

In other action, Reclamation awarded a $2.4 million contract to Gardner Zemke Co. to supply two generator circuit breakers and related equipment at Hoover Dam. The agency took bids for the work in July.

Zemke, of Albuquerque, N.M., is to design, manufacture, deliver, and install two generator-type SF6 breakers, rated at 25.3-kilovolts and rated to interrupt 128,000 amps fault current. The contract is expected to have a two-year performance period.

Reclamation also awarded a $2.2 million contract to Precision Machine and Supply Inc. for refurbishment of pressure regulating valves at Hoover. It took bids for the work in July.

Precision, of Lewiston, Idaho, is to perform modernization, conversion, and overhaul of nine remaining pressure regulating valves at Hoover. Work has been completed on five units and Hoover has purchased hydraulic manifolds and digital controllers to be used on the remaining units.

The contract calls for disassembly and removal of pressure regulating valves and transport of the units to and from the facility to be modernized and refurbished, and assembly and reinstallation of equipment at Hoover. The work requires replacement of bushings with vesconite greaseless material, seats, seal rings, and gaskets; machining; repair of cavitation damage; replacement steel parts; and reassembly, adjustment, and testing.

For more hydropower tenders, click here.



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