Federal Power:

Implications of Reduced Maintenance and Repairs of Federal Hydropower Plants

RCED-99-63: Published: Mar 30, 1999. Publicly Released: Apr 30, 1999.

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Victor S. Rezendes
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Pursuant to a congressional request, GAO reviewed the: (1) reliability of the Bureau of Reclamation's and Army Corps of Engineers' hydropower plants in generating electricity compared with the reliability of nonfederal hydropower plants; (2) reasons why the Bureau's and the Corps' plants may be less reliable than nonfederal plants and the potential implications of reduced reliability; and (3) actions taken to obtain funding to better maintain and repair the Bureau's and the Corps' plants.

GAO noted that: (1) the Bureau's and the Corps' hydropower plants are generally less reliable in generating electricity than nonfederal hydropower plants; (2) the reliability of the Bureau's hydropower plants has improved recently, while the Corps' has remained relatively unchanged; (3) from 1993 through 1997, the Bureau's units were available to generate electricity an average of about 83 percent of the time compared with about 91 percent for nonfederal units; (4) the availability of the Bureau's units to generate electricity improved from about 81 percent of the time in 1993 to about 87 percent in 1997; (5) the Corps' units were available to generate electricity an average of about 89 percent of the time during the period 1993 through 1997; (6) the Bureau's and the Corps' units in the Pacific Northwest were available about 79 percent and 85 percent of the time, respectively; (7) the Bureau's and the Corps' plants were less reliable because they could not always obtain funding for maintenance and repairs when needed; (8) GAO found that because of uncertain funding, the agencies delay repairs and maintenance until funds become available; (9) GAO also found that these delays caused frequent, extended outages and inconsistent plant performance; (10) the power marketing administrations' (PMA) electricity is generally priced less than other electricity; (11) however, as markets become more competitive, PMAs' customers will have more suppliers from whom they can buy electricity; (12) as nonfederal electricity rates decline in competitive markets, a portion of the federal government's appropriated and other debt of about $22 billion may be at risk of nonrecovery if the federal electricity does not continue to be marketable; (13) a factor affecting the marketability of this electricity is its reliability; (14) Congress, the Office of Management and Budget, and GAO have been working to help ensure that the purchase and maintenance of all assets and infrastructure have the highest and most efficient returns to the taxpayer and the government; (15) the Bureau, the Corps, and the PMAs have taken actions to obtain funding to maintain and repair their hydropower plants; (16) these actions involve directly funding maintenance and repairs from the PMAs' electricity revenues or from funds contributed by the power customers; and (17) by enabling repairs to be made in a timely manner, these actions have the potential to help to improve the reliability of the PMAs' electricity and to continue their existing rate-competitiveness.

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    Priority Open Recommendations:

    Department of Energy
    GAO-20-285PR: Published: Apr 22, 2020. Publicly Released: Apr 29, 2020.

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