Program evaluation (71 - 80 of 255 items)
Nuclear Safety: Construction of the Protective Shelter for the Chernobyl Nuclear Reactor Faces Schedule Delays, Potential Cost Increases, and Technical Uncertainties
GAO-07-923: Published: Jul 19, 2007. Publicly Released: Jul 26, 2007.
In 1986, an explosion at the Chernobyl nuclear power plant in Ukraine destroyed the reactor building and released massive amounts of radioactive contamination. A temporary shelter was built over the damaged reactor to prevent further contamination. The United States is a major donor to an international project to build a new shelter to replace the existing one, which is badly deteriorating. GAO wa...
Nuclear Waste: DOE Should Reassess Whether the Bulk Vitrification Demonstration Project at Its Hanford Site Is Still Needed to Treat Radioactive Waste
GAO-07-762: Published: Jun 12, 2007. Publicly Released: Jun 12, 2007.
The Department of Energy (DOE) is demonstrating a technology called bulk vitrification, in parallel with the Hanford waste treatment plant, to treat a portion of the radioactive waste stored in 177 tanks at its Hanford site in southeastern Washington state. DOE faces technical and management problems that have affected the original objectives to justify demonstrating the bulk vitrification technol...
Nuclear Nonproliferation: Progress Made in Improving Security at Russian Nuclear Sites, but the Long-term Sustainability of U.S.-Funded Security Upgrades Is Uncertain
GAO-07-404: Published: Feb 28, 2007. Publicly Released: Apr 2, 2007.
Safeguarding nuclear warheads and materials that can be used to make nuclear weapons is a primary national security concern of the United States. Since 1993, the Departments of Energy (DOE) and Defense (DOD) have worked to improve security at sites housing weapons-usable nuclear material and warheads in Russia and other countries. In 1995, DOE established the Materials Protection, Control, and Acc...
Department of Energy: Major Construction Projects Need a Consistent Approach for Assessing Technology Readiness to Help Avoid Cost Increases and Delays
GAO-07-336: Published: Mar 27, 2007. Publicly Released: Mar 27, 2007.
The Department of Energy (DOE) spends billions of dollars on major construction projects that help maintain the nuclear weapons stockpile, conduct research and development, and process nuclear waste so that it can be disposed of. Because of DOE's long-standing project management problems, GAO determined the extent to which (1) DOE's major construction projects are having cost increases and schedul...
Nuclear Nonproliferation: DOE's International Radiological Threat Reduction Program Needs to Focus Future Efforts on Securing the Highest Priority Radiological Sources
GAO-07-282: Published: Jan 31, 2007. Publicly Released: Mar 13, 2007.
Following the terrorist attacks of September 11, 2001, U.S. and international experts raised concerns that unsecured radiological sources were vulnerable to theft and posed a significant security threat to the United States and the international community. Radioactive material is encapsulated or sealed in metal to prevent its dispersal and is commonly called a sealed radiological source. Sealed ra...
Nuclear Nonproliferation: Focusing on the Highest Priority Radiological Sources Could Improve DOE's Efforts to Secure Sources in Foreign Countries
GAO-07-580T: Published: Mar 13, 2007. Publicly Released: Mar 13, 2007.
Following the terrorist attacks of September 11, 2001, U.S. and international experts raised concerns that unsecured radiological sources posed a significant security threat to the United States and the international community. If certain types of these sources were obtained by terrorists, they could be used to produce a radiological dispersion device, or dirty bomb. In response, the Department of...
Passenger Vehicle Fuel Economy: Preliminary Observations on Corporate Average Fuel Economy Standards
GAO-07-551T: Published: Mar 6, 2007. Publicly Released: Mar 6, 2007.
Concerns over national security, environmental stresses, and economic pressures from increased fuel prices have led to the nation's interest in reducing oil consumption. Efforts to reduce oil consumption will need to include the transportation sector. For example, several Members of Congress have introduced bills proposing changes to the corporate average fuel economy (CAFE) program. This program...
The Department of Energy: Key Steps Needed to Help Ensure the Success of the New Loan Guarantee Program for Innovative Technologies by Better Managing Its Financial Risk
GAO-07-339R: Published: Feb 28, 2007. Publicly Released: Feb 28, 2007.
In May 2006, the Department of Energy (DOE) proposed transferring appropriations from some DOE accounts to begin a new loan guarantee program (LGP) authorized by the Energy Policy Act of 2005 (EPAct 05). Title XVII of EPAct 05--Incentives for Innovative Technologies--authorized the LGP to guarantee loans for projects intended to (1) decrease air pollutants or man-made greenhouse gases by reducing...
Yucca Mountain Project: Information on Estimated Costs to Respond to Employee E-Mails That Raised Questions about Quality Assurance
GAO-07-297R: Published: Jan 19, 2007. Publicly Released: Jan 31, 2007.
In March 2005, the Department of Energy (DOE) reported the discovery of a series of e-mail messages written in the late 1990s by U.S. Geological Survey (USGS) employees working under a contract with DOE on the Yucca Mountain Project. These e-mails alerted DOE that USGS workers may have falsified records for scientific work on the project and may have been disdainful of the project's quality assura...
Tennessee Valley Authority: Plans to Reduce Debt While Meeting Demand for Power
GAO-06-810: Published: Aug 31, 2006. Publicly Released: Sep 29, 2006.
Competition in the electricity industry is expected to intensify, and restructuring legislation may dramatically change the way electric utilities do business in the future. To be competitive, the Tennessee Valley Authority (TVA) needs to reduce fixed costs and increase its flexibility in order to meet market prices for power. TVA plans to reduce its financing obligations, which include statutory...