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Micronized Coal Reburning Demonstration for NOx Control: A DOE Assessment

Description: The goal of the U.S. Department of Energy's (DOE) Clean Coal Technology (CCT) program is to furnish the energy marketplace with a number of advanced, more efficient, and environmentally responsible coal utilization technologies through demonstration projects. These projects seek to establish the commercial feasibility of the most promising advanced coal technologies that have developed beyond the proof-of-concept stage. This document serves as a DOE post-project assessment of a project selected in CCT Round IV, the Micronized Coal Reburning (MCR) Demonstration for NO{sub x} Control, as described in a report to Congress (U.S. Department of Energy 1999). The need to meet strict emissions requirements at a minimum cost prompted the Tennessee Valley Authority (TVA), in conjunction with Fuller Company, Energy and Environmental Research Corporation (EER), and Fluor Daniel, to submit the proposal for this project to be sited at TVA's Shawnee Fossil Plant. In July 1992, TVA entered into a cooperative agreement with DOE to conduct the study. However, because of operational and environmental compliance strategy changes, the Shawnee site became unavailable.
Date: August 15, 2001
Creator: National Energy Technology Laboratory (U.S.)
Partner: UNT Libraries Government Documents Department

Tennessee Valley Authority: Full Consideration of Energy Efficiency and Better Capital Expenditures Planning Are Needed

Description: A letter report issued by the Government Accountability Office with an abstract that begins "The Tennessee Valley Authority (TVA), the nation's largest public power provider, is a self-financing, federal electric utility with annual revenues of about $11 billion. TVA has financed large capital investments mostly by issuing debt and is subject to a $30 billion debt ceiling imposed by the TVA Act. TVA is governed by a 9-member Board. Within an affirmation requirement for the TVA Board, the TVA Act recognizes that TVA's broad missions and objectives include being a national leader in technological innovation, low-cost power, and environmental stewardship. GAO was asked to examine (1) how TVA plans to meet future demand for electricity and how TVA's resource planning and forecasts compare to those from other sources, (2) TVA's efforts to use energy efficiency to meet demand for electricity, and (3) TVA's financial condition and how it affects TVA's ability to meet its operational and financial goals. GAO analyzed data from TVA and third parties, reviewed agency documents, and interviewed federal and state officials and industry stakeholders."
Date: October 31, 2011
Creator: United States. Government Accountability Office.
Partner: UNT Libraries Government Documents Department

Tennessee Valley Authority: Plans to Reduce Debt While Meeting Demand for Power

Description: A letter report issued by the Government Accountability Office with an abstract that begins "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 debt and other financing arrangements, by $7.1 billion by the end of fiscal year 2015. GAO was asked to (1) describe how TVA plans to meet its goal for reducing financing obligations, (2) assess the reasonableness of TVA's approach in developing its plan, (3) identify key factors that could impact TVA's ability to successfully carry out its plan, and (4) identify how TVA's plans for meeting the growing demand for power in the Tennessee Valley may impact its ability to reduce financing obligations. To fulfill these objectives, GAO interviewed TVA officials and others, and reviewed budget submissions, financial projections, and other documentation supporting the plan."
Date: August 31, 2006
Creator: United States. Government Accountability Office.
Partner: UNT Libraries Government Documents Department

Purification Testing for HEU Blend Program

Description: The Savannah River Site (SRS) is working to dispose of the inventory of enriched uranium (EU) formerly used to make fuel for production reactors. The Tennessee Valley Authority (TVA) has agreed to take the material after blending the EU with either natural or depleted uranium to give a {sup 235}U concentration of 4.8 percent low-enriched uranium will be fabricated by a vendor into reactor fuel for use in TVA reactors. SRS prefers to blend the EU with existing depleted uranium (DU) solutions, however, the impurity concentrations in the DU and EU are so high that the blended material may not meet specifications agreed to with TVA. The principal non-radioactive impurities of concern are carbon, iron, phosphorus and sulfur. Neptunium and plutonium contamination levels are about 40 times greater than the desired specification. Tests of solvent extraction and fuel preparation with solutions of SRS uranium demonstrate that the UO{sub 2} prepared from these solutions will meet specifications for Fe, P and S, but may not meet the specifications for carbon. The reasons for carbon remaining in the oxide at such high levels is not fully understood, but may be overcome either by treatment of the solutions with activated carbon or heating the UO{sub 3} in air for a longer time during the calcination step of fuel preparation.Calculations of the expected removal of Np and Pu from the solutions show that the specification cannot be met with a single cycle of solvent extraction. The only way to ensure meeting the specification is dilution with natural U which contains no Np or Pu. Estimations of the decontamination from fission products and daughter products in the decay chains for the U isotopes show that the specification of 110 MEV Bq/g U can be met as long as the activities of the daughters of U- ...
Date: June 1, 1998
Creator: Thompson, M.C. & Pierce, R.A.
Partner: UNT Libraries Government Documents Department

History and evaluation of the AUTRC Program 1985--1995

Description: The Alabama Universities/Tennessee Valley Authority Research Consortium (AUTRC), established in 1985, includes two state agencies and one federal agency working cooperatively with seven Alabama public research institutions to promote research and support economic development in Alabama. In 1985 the Alabama Department of Economic and Community Affairs (ADECA) was awarded a grant from the Appalachian Regional Commission (ARC) to establish a consortium of research universities and promote the economic development of the Appalachian counties of north Alabama. The following year, the Alabama Commission on Higher Education (ACHE) requested funding from the state legislature (Special Educational Trust Fund) to provide continuing support for AUTRC. One of the principal goals of this Consortium was to facilitate job creation in the state through the commercialization of TVA research. Since that time, continuing appropriations from ACHE and support from TVA, the universities, and the private sector have continued to support research activities and commercialization efforts. This report provides a ten-year overview of the program`s evolution, describes its research and commercialization activities, identifies the roles and contributions of the parties to the Consortium, and presents conclusions and recommendations for the future.
Date: November 1, 1994
Creator: Ransom, J.M. & Seale, S.K.
Partner: UNT Libraries Government Documents Department

Tennessee Valley Authority: Bond Ratings Based on Ties to the Federal Government and Other Nonfinancial Factors

Description: A letter report issued by the General Accounting Office with an abstract that begins "Although the criteria used to rate the bonds of the Tennessee Valley Authority (TVA) and other electric utilities are the same, they are weighted differently and, as a result, the basis for TVA's bond rating is more nonfinancial in nature than that for other electric utilities. According to bond analysts, TVA's high bond rating is largely based on the perception that its debt is federally backed because of its ties to the federal government as a wholly owned government corporation and its legislative protections from competition. If these conditions were to change, TVA's bond rating would likely be lowered, which, in turn, would affect the cost of new debt. This would add to its already high interest expense and corresponding financial challenges in a competitive market."
Date: April 30, 2001
Creator: United States. General Accounting Office.
Partner: UNT Libraries Government Documents Department

Tennessee Valley Authority: Problems With Irrevocable Trust Raise Need for Additional Oversight

Description: A letter report issued by the General Accounting Office with an abstract that begins "Pursuant to a congressional request, GAO provided information on the Tennessee Valley Authority's (TVA) creation of the Center for Rural Studies (CRS) Trust, focusing on: (1) the significant events pertaining to the creation, funding, and operation of CRS as well as any investigations of CRS; (2) how TVA accounted for the funds returned to TVA; and (3) the oversight of TVA activities."
Date: February 29, 2000
Creator: United States. General Accounting Office.
Partner: UNT Libraries Government Documents Department

Tennessee Valley Authority: Facts Surrounding Allegations Raised Against the Chairman and the IG

Description: A letter report issued by the General Accounting Office with an abstract that begins "Pursuant to a congressional request, GAO investigated the Tennessee Valley Authority's (TVA) Inspector General's (IG) allegation that the Chairman, TVA, attempted to interfere with the independence of his office. GAO also investigated the TVA Chairman's allegation that the IG improperly used his office's credit card."
Date: September 15, 1999
Creator: United States. General Accounting Office.
Partner: UNT Libraries Government Documents Department

Tennessee Valley Authority: Debt Reduction Efforts and Potential Stranded Costs

Description: A letter report issued by the General Accounting Office with an abstract that begins "If the Tennessee Valley Authority (TVA) were to lose its legislative protections today, its high level of debt and corresponding high financing costs would be a competitive challenge. This competitive challenge would be even greater if it were at the same time attempting to recover costs of deferred assets through rates. Despite having reduced its debt and deferred assets over the past three years, TVA still compares unfavorably to its likely competitors in these areas. In addition, TVA is revising its goals for reducing debt and deferred assets downward significantly. Whether or not the deferred assets will contribute to stranded costs that are recoverable from customers depends on the specific requirements of any legislation that might remove TVA's legislative protections and TVA's ability to retain its current competitive advantages in a restructured environment. In addition, the longer that TVA has to prepare for competition, the longer it will have to reduce debt and recover the costs of its deferred assets and position itself more competitively. Ultimately, TVA's ability to be competitive will depend on the future market price of power, which cannot be predicted with any certainty."
Date: February 28, 2001
Creator: United States. General Accounting Office.
Partner: UNT Libraries Government Documents Department

Tennessee Valley Authority: Information on Lease-Leaseback and Other Financing Arrangements

Description: A letter report issued by the General Accounting Office with an abstract that begins "Concern about the implications of the Tennessee Valley Authority's (TVA) debt on its future competitiveness prompted Representative Richard Baker to ask GAO to determine TVA's planned and actual use of nontraditional financing arrangements (which, to date, has consisted primarily of lease-leaseback arrangements), who is at risk under TVA's lease-leaseback arrangements, and whether TVA's accounting for the lease-leaseback arrangements complies with applicable standards and requirements."
Date: June 30, 2003
Creator: United States. General Accounting Office.
Partner: UNT Libraries Government Documents Department

Solar-Assisted Electric Vehicle Charging Station Interim Report

Description: Oak Ridge National Laboratory (ORNL) has been awarded $6.8 million in the Department of Energy (DOE) American Recovery and Reinvestment Act (ARRA) funds as part of an overall $114.8 million ECOtality grant with matching funds from regional partners to install 125 solar-assisted Electric Vehicle (EV) charging stations across Knoxville, Nashville, Chattanooga, and Memphis. Significant progress has been made toward completing the scope with the installation of 25 solar-assisted charging stations at ORNL; six stations at Electric Power Research Institute (EPRI); and 27 stations at Nissan's Smyrna and Franklin sites, with three more stations under construction at Nissan's new lithium-ion battery plant. Additionally, the procurement process for contracting the installation of 34 stations at Knoxville, the University of Tennessee Knoxville (UTK), and Nashville sites is underway with completion of installation scheduled for early 2012. Progress is also being made on finalizing sites and beginning installations of 30 stations in Nashville, Chattanooga, and Memphis by EPRI and Tennessee Valley Authority (TVA). The solar-assisted EV charging station project has made great strides in fiscal year 2011. A total of 58 solar-assisted EV parking spaces have been commissioned in East and Middle Tennessee, and progress on installing the remaining 67 spaces is well underway. The contract for the 34 stations planned for Knoxville, UTK, and Nashville should be underway in October with completion scheduled for the end of March 2012; the remaining three Nissan stations are under construction and scheduled to be complete in November; and the EPRI/TVA stations for Chattanooga, Vanderbilt, and Memphis are underway and should be complete by the end of March 2012. As additional Nissan LEAFs are being delivered, usage of the charging stations has increased substantially. The project is on course to complete all 125 solar-assisted EV charging stations in time to collect meaningful data by the end of ...
Date: September 1, 2011
Creator: Lapsa, Melissa Voss; Durfee, Norman; Maxey, L Curt & Overbey, Randall M
Partner: UNT Libraries Government Documents Department

Clinch River - Environmental Restoration Program (CR-ERP) pilot study, ambient water toxicity

Description: Clinch River - Environmental Restoration Program (CR-ERP) personnel and Tennessee Valley Authority (TVA) personnel conducted a pilot study during the week of April 22-29, 1993, prior to initiation of CR-ERP Phase II Sampling and Analysis activities as described in the Statement of Work (SOW) document. The organisms specified for testing were larval fathead minnows, Pimephales promelas, and the daphnid, Ceriodaphnia dubia. Surface water samples were collected by TVA Field Engineering personnel from Clinch River Mile 9.0 and Poplar Creek Kilometer 1.6 on April 21, 23, and 26. Samples were split and provided to the CR-ERP and TVA toxicology laboratories for testing. Exposure of test organisms to these samples resulted in no toxicity (survival, growth, or reproduction) to either species in testing conducted by TVA.
Date: June 1, 1997
Creator: Simbeck, D.J.
Partner: UNT Libraries Government Documents Department

Clinch River - Environmental Restoration Program (CR-ERP) study, ambient water toxicity

Description: Clinch River - Environmental Restoration Program (CR-ERP) personnel and Tennessee Valley Authority (TVA) personnel conducted a study during the week of April 14-21, 1994, as described in the Statement of Work (SOW) document. The organisms specified for testing were larval fathead minnows, Pimephales promelas, and the daphnid, Ceriodaphnia dubia. Surface water samples were collected by TVA Field Engineering personnel from Poplar Creek Mile 4.3, Poplar Creek Mile 5.1, and Poplar Creek Mile 6.0 on April 13, 15, and 18. Samples were partitioned (split) and provided to the CR-ERP and TVA toxicology laboratories for testing. Exposure of test organisms to these samples resulted in no toxicity (survival or growth) to daphnids in undiluted samples; however, toxicity to fathead minnows (significantly reduced survival) was demonstrated in undiluted samples from Poplar Creek Miles 4.3 and 6.0 in testing conducted by TVA based on hypothesis testing of data. Daphnid reproduction was significantly less than controls in 50 percent dilutions of samples from Poplar Creek Miles 4.3 and 6.0, while no toxicity to fathead minnows was shown in diluted (50 percent) samples.
Date: June 1, 1997
Creator: Simbeck, D.J.
Partner: UNT Libraries Government Documents Department

Clinch River - Environmental Restoration Program (CR-ERP) study, ambient water toxicity

Description: Clinch River - Environmental Restoration Program (CR-ERP) personnel and Tennessee Valley Authority (TVA) personnel conducted a study during the week of July 22-29, 1993, as described in the Statement of Work (SOW) document. The organisms specified for testing were larval fathead minnows, Pimephales promelas, and the daphnid, Ceriodaphnia dubia. Surface water samples were collected by TVA Field Engineering personnel from Clinch River Mile 19.0 and Mile 22.0 on July 21, 23, and 26. Samples were split and provided to the CR-ERP and TVA toxicology laboratories for testing. Exposure of test organisms to these samples resulted in no toxicity (survival, growth, or reproduction) to either species in testing conducted by TVA.
Date: June 1, 1997
Creator: Russell, C.L.
Partner: UNT Libraries Government Documents Department

Clinch River - Environmental Restoration Program (CR-ERP) study, Ambient water toxicity

Description: Clinch River - Environmental Restoration Program (CR-ERP) personnel and Tennessee Valley Authority (TVA) personnel conducted a study during the week of January 25-February 1, 1994, as described in the Statement of Work (SOW) document. The organisms specified for testing were larval fathead minnows, Pimephales promelas, and the daphnid, Ceriodaphnia dubia. Surface water samples were collected by TVA Field Engineering personnel from Clinch River Mile 9.0, Poplar Creek Mile 1.0, and Poplar Creek Mile 2.9 on January 24, 26, and 28. Samples were partitioned (split) and provided to the CR-ERP and TVA toxicology laboratories for testing. Exposure of test organisms to these samples resulted in no toxicity (survival or growth) to fathead minnows; however, toxicity to daphnids (significantly reduced reproduction) was demonstrated in undiluted samples from Poplar Creek Mile 1.0 in testing conducted by TVA based on hypothesis testing of data. Point estimation (IC{sub 25}) analysis of the data, however, showed no toxicity in PCM 1.0 samples.
Date: June 1, 1997
Creator: Simbeck, D.J.
Partner: UNT Libraries Government Documents Department

Characterization summary of candidate off-specification material for transfer to the Tennessee Valley Authority

Description: The United States Enrichment Corporation (USEC) Privatization Act provides that, prior to privatization, the Department of Energy (DOE) may transfer off-specification (off-spec) enriched uranium to a federal agency if the material is transferred for the use of the receiving agency without resale or subsequent transfer to another entity. The Tennessee Valley Authority (TVA) has expressed an interest in obtaining some of this off-spec surplus highly enriched uranium (HEU) for the purpose of making fuel for its reactors. Discussions between DOE and TVA over the past two years have resulted in a framework between DOE and TVA within which to develop a program for the utilization of HEU blended to off-spec low-enriched uranium (LEU) for use in TVA commercial nuclear power reactors. A minimum of 30 metric tons uranium (t) of HEU has been designated for this program. DOE has identified material amounting to approximately 35 t that potentially will be transferred to TVA. This report describes four types of HEU that has been identified by the DOE.
Date: January 1, 1998
Partner: UNT Libraries Government Documents Department

Clinch River - Environmental Restoration Program (CR-ERP) Study, ambient water toxicity. Final report, October 21, 1993--October 28, 1993

Description: Clinch River - Environmental Restoration Program (CR-ERP) personnel and Tennessee Valley Authority (TVA) personnel conducted a study during the week of October 21-28, 1993, as described in the Statement of Work (SOW) document. The organisms specified for testing were larval fathead minnows, Pimephales promelas, and the daphnid, Ceriodaphnia dubia. Due to serious reproduction/embryo abortion problems with the TVA daphnid cultures, TVA conducted tests during this study period using only fathead minnows. A split sample test using daphnids only will be scheduled during 1994 as a substitute for this study period. Surface water samples were collected by TVA Field Engineering personnel from Poplar Creek Mile 2.9, Mile 4.3, and Mile 5.1 on October 20, 22, and 25. Samples were split and provided to the CR-ERP and TVA toxicology laboratories for testing. Exposure of test organisms to these samples resulted in no toxicity (survival or growth) in testing conducted by TVA.
Date: June 1, 1997
Creator: Simbeck, D.J.
Partner: UNT Libraries Government Documents Department

FURNACE INJECTION OF ALKALINE SORBENTS FOR SULFURIC ACID CONTROL

Description: This document summarizes progress on the Cooperative Agreement DE-FC26-99FT40718, Furnace Injection of Alkaline Sorbents for Sulfuric Acid Control, during the time period April 1, 2000 through September 30, 2000. The objective of this project is to demonstrate the use of alkaline reagents injected into the furnace of coal-fired boilers as a means of controlling sulfuric acid emissions. The coincident removal of hydrochloric acid and hydrofluoric acid will also be determined, as will the removal of arsenic, a known poison for NOX selective catalytic reduction (SCR) catalysts. EPRI, the Tennessee Valley Authority (TVA), First Energy Corporation, and the Dravo Lime Company are project co-funders. URS Corporation is the prime contractor. This is the second reporting period for the subject Cooperative Agreement. During this period, the first of four short-term sorbent injection tests were conducted at the First Energy Bruce Mansfield Plant. This test determined the effectiveness of dolomite injection through out-of-service burners as a means of controlling sulfuric acid emissions from this unit. The tests showed that dolomite injection could achieve up to 95% sulfuric acid removal. Balance of plant impacts on furnace slagging and fouling, air heater fouling, ash loss-on-ignition, and the flue gas desulfurization system were also determined. These results are presented and discussed in this report.
Date: December 1, 2000
Creator: Blythe, Gary M.
Partner: UNT Libraries Government Documents Department

Tennessee Valley Authority: Information on Benchmarking and Electricity Rates

Description: A letter report issued by the General Accounting Office with an abstract that begins "The Tennessee Valley Authority (TVA) declared its intent to become competitive by reducing its cost of power and becoming more financially flexible by reducing debt from $27.4 billion to $13.2 billion by 2007. Since the 1980s, TVA has used benchmarking to assess staffing levels for its nuclear program and it began to use benchmarking studies for its non-nuclear business units in 1998. Recent studies indicate that TVA's nuclear and transmission power supply units are close to the industry's best in terms of staffing efficiency. TVA has taken several actions to improve performance and efficiency, including reorganizing its human resources and business services organizations and automating its hydropower production facilities to reduce future staffing. TVA continues to utilize benchmarking to assist in identifying opportunities for improvement. TVA's current electricity rates are low when compared to 12 likely competitors and to national averages. Although TVA's electricity rates are relatively low, it is legislatively protected from most competition, and it has the statutory authority to raise rates. If TVA were to choose to raise electricity rates selectively and use the additional cash generated to repay debt, it could accelerate debt repayment and reduce fixed interest costs. Doing so would enhance TVA's ability to respond to future competitive pressures. But TVA is already subject to some competitive pressures and a decision to raise electricity rates could result in potential long-term negative consequences on power sales. TVA also is concerned that a a rate increase could affect distrubutors' perception of TVA before the they may be given the choice of selecting their suppliers. Increasing electricity rates could result in the loss of some customers, lower power sales, and possibly reduce revenue. Increased rates also could have an impact on the regional ...
Date: May 30, 2002
Creator: United States. General Accounting Office.
Partner: UNT Libraries Government Documents Department

Tennessee Valley Authority: Assessment of the 10-Year Business Plan

Description: A letter report issued by the General Accounting Office with an abstract that begins "Pursuant to a congressional request, GAO provided information on the Tennessee Valley Authority's (TVA) 10-year business plan, focusing on whether the 10-year plan: (1) addresses key issues facing TVA; (2) takes into consideration all applicable costs and revenue sources; (3) contains goals and assumptions that are achievable or reasonable and in line with industry estimates and expectations; and (4) has been updated to reflect significant changes in key goals and assumptions or actual experience."
Date: April 30, 1999
Creator: United States. General Accounting Office.
Partner: UNT Libraries Government Documents Department