Person:
Thomas, Valerie M.

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Publication Search Results

Now showing 1 - 7 of 7
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    Incorporating New Technologies in EEIO Models - Case Study Input Data
    (Georgia Institute of Technology, 2022) Pedraza, Cindy Azuero ; Thomas, Valerie M. ; Ingwersen, Wesley
    We propose a methodology to add new technologies into Environmentally Extended Input–Output (EEIO) models based on a Supply and Use framework. The methodology provides for adding new industries (new technologies) and a new commodity under the assumption that the new commodity will partially substitute for a functionally-similar existing commodity of the baseline economy. The level of substitution is controlled by a percentage (%) as a variable of the model. In the Use table, a percentage of the current use of the existing commodity is transferred to the new commodity. The Supply or Make table is modified assuming that the new industries are the only ones producing the new commodity. We illustrate the method for the USEEIO model, for the addition of second generation biofuels, including naphtha, jet fuel and diesel fuel. The new industries’ inputs, outputs and value-added components needed to produce the new commodity are drawn from process-based life cycle inventories (LCIs). Process-based LCI inputs and outputs per physical functional unit are transformed to prices and assigned to commodities and environmental flow categories for the EEIO model. This methodology is designed to evaluate the environmental impacts of substituting products in the current US economy with bio-versions, produced by new technologies, that are intended to reduce negative environmental impacts. However, it can be applied for any new commodity for which the substitution assumption is reasonable.
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    Two Revolutions, One Region: Bridging the Digital and Energy Revolutions in the Southeast [Panel, part 2]
    (Georgia Institute of Technology, 2014-04-16) Stulberg, Adam ; Evans, Peter ; Trawick, John ; McConnell, Donald P. ; Thomas, Valerie M. ; Vrins, Jan
    Moderator: Adam N. Stulberg ; Panel Discussion (Part 2): Two Revolutions, One Region: Bridging the Digital and Energy Revolutions in the Southeast: Peter Evans, Vice President, Center for Global Enterprise ; John Trawick, Vice President, Commercial Operations & Services, Southern Company ; Donald P. McConnell, Executive Director of Industry Strategy and Commercialization, Office of Industry Research, Georgia Institute of Technology ; Valerie Thomas, Anderson Interface Associate Professor of Natural Systems, with appointments in the H. Milton Stewart School of Industrial and Systems Engineering and the School of Public Policy, Georgia Institute of Technology ; Jan Vrins, Managing Director and Global Energy Practice Leader, Navigant
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    Experiences as a Science Advisor for the U.S. Environmental Protection Agency (EPA) and as a Congressional Science Fellow
    (Georgia Institute of Technology, 2014-03-26) Thomas, Valerie M.
    Dr. Valerie Thomas is the Anderson Interface Associate Professor of Natural Systems in the School of Industrial and Systems Engineering, with a joint appointment in the School of Public Policy. Her research interests are energy and materials efficiency, sustainability, industrial ecology, technology assessment, international security, and science and technology policy. In this talk, Dr. Thomas will share her experiences as a Science Advisor for the U.S. Environmental Protection Agency (EPA) and as a Congressional Science Fellow in Congress.
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    A supercritical water approach to cellulosic sugars: lifecycle energy, greenhouse gas and water implications
    (Georgia Institute of Technology, 2012-01-04) Thomas, Valerie M. ; Realff, Matthew J. ; Choi, Dong Gu ; Luo, Dexin
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    Energy Perspective: Building Options
    (Georgia Institute of Technology, 2011-03-03) Shelton, Sam V. ; Thomas, Valerie M.
    Dr. Shelton will give a brief overview of U.S. energy utilization highlighting how building energy systems impact the U.S. energy demand. A review of current building energy technologies for lighting, heating, cooling, and water heating will then be presented, followed by potential new technologies to reduce building energy demand.
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    Estimates of the Cost of New Electricity Generation in the South
    (Georgia Institute of Technology, 2010-03-26) Borin, Seth ; Levin, Todd ; Thomas, Valerie M.
    Future demand for electricity can be met with a range of technologies, with fuels including coal, nuclear, natural gas, biomass and other renewables, as well as with energy efficiency and demand management approaches. Choices among options will depend on factors including capital cost, fuel cost, market and regulatory uncertainty, greenhouse gas emissions, and other environmental impacts. This paper estimates the costs of new electricity generation. The approach taken here is to provide a transparent and verifiable analysis based mainly on recent data provided to public utility co
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    Southeast Biomass: Highest and Best Use
    (Georgia Institute of Technology, 2010-02-24) Thomas, Valerie M. ; Walsh, Marie ; McClure, Nathan ; Burnside, Michael H. (Mike)
    Regional biomass resources and economics are analyzed along with the business proposition of converting softwood into fuel.