Environmental Quality and the US Power Sector
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ORNL/SPR-2016/772 Environmental Quality and the U.S. Power Sector: Air Quality, Water Quality, Land Use and Environmental Justice Emanuele Massetti Marilyn A. Brown Melissa Lapsa Isha Sharma James Bradbury Colin Cunliff Yufei Li January 4, 2017 DOCUMENT AVAILABILITY Reports produced after January 1, 1996, are generally available free via US Department of Energy (DOE) SciTech Connect. 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ORNL/SPR-2016/772 Energy and Transportation Science Division Environmental Quality and the U.S. Power Sector: Air Quality, Water Quality, Land Use and Environmental Justice Emanuele Massetti, Georgia Institute of Technology Marilyn A. Brown, Georgia Institute of Technology Melissa Lapsa, Oak Ridge National Laboratory Isha Sharma, Oak Ridge National Laboratory James Bradbury, Department of Energy Colin Cunliff, American Association for the Advancement of Science Yufei Li, Georgia Institute of Technology January 4, 2017 Prepared by OAK RIDGE NATIONAL LABORATORY Oak Ridge, TN 37831-6283 managed by UT-BATTELLE, LLC for the US DEPARTMENT OF ENERGY under contract DE-AC05-00OR22725 This report is a DOE EPSA product prepared by Oak Ridge National Laboratory and is part of a series of “baseline” reports intended to inform the second installment of the Quadrennial Energy Review (QER 1.2). QER 1.2 will provide a comprehensive review of the nation’s electricity system and covers the current state and key trends related to the electricity system, including generation, transmission, distribution, grid operations and planning, and end use. The baseline reports provide an overview of elements of the electricity system. To help understand how the energy systems might develop into the future under Business as Usual (BAU) conditions QER 1.1 relied upon the U.S. Energy Information's Annual Energy Outlook (AEO) 2014 Reference Case. EPSA could not rely completely upon AEO for QER 1.2 as AEO 2016 was not completed and AEO 2015 did not include the Clean Power Plan. So the EPSA Base Case was developed and it aligns as closely as possible with AEO 2016 given the timing issues. The EPSA Base Case scenario was constructed using EPSA-NEMSa, a version of the same integrated energy system model used by EIA. The EPSA Base Case input assumptions were based mainly on the final release of AEO 2015, with a few exceptions as noted below, and then updated to include the Clean Power Plan and tax extenders. As with the AEO, the EPSA Base Case provides one possible scenario of base case energy sector demand, generation, and emissions from present day to 2040, and it does not include future policies that might be passed or future technological progress. The EPSA Base Case input assumptions were based mainly on the final release of the AEO 2015, with a few updates that reflect current technology cost and performance estimates, policies, and measures. Assumptions from the EIA 2015 High Oil and Gas Resources Case were used; it has lower gas prices similar to those in AEO 2016. The EPSA Base Case achieves the broad emission reductions required by the Clean Power Plan. While states will ultimately decide how to comply with the Clean Power Plan, the EPSA Base Case assumes that states choose the mass-based state goal approach with new source complement and assumes national emission trading among the states, but does not model the Clean Energy Incentive Program because it is not yet finalized. The EPSA Base Case also includes the tax credit extensions for solar and wind passed in December 2015. In addition, the utility-scale solar and wind renewable cost and performance estimates have been updated to be consistent with EIA’s AEO 2016. Carbon capture and storage (CCS) cost and performance estimates have also been updated to be consistent with the latest published information from the National Energy Technologies Laboratory. An EPSA Side Case was also completed, which has higher gas prices similar to those in the AEO 2015 Reference Case. This activity was supported by a U.S. Department of Energy (DOE) American Association for the Advancement of Science (AAAS) Fellowship, administered by Oak Ridge Institute for Science and Education (ORISE). ORISE is managed by ORAU under DOE contract number DE-AC05-06OR23100. a The version of the National Energy Modeling System (NEMS) used for the QER base case has been run by OnLocation, Inc., with input assumptions determined by EPSA. Since it uses a version of NEMS that differs from the one used by the U.S. Energy Information Administration (EIA), the model is referred to as EPSA-NEMS. CONTENTS CONTENTS ..................................................................................................................................................... V EXECUTIVE SUMMARY ................................................................................................................................ VII 1. INTRODUCTION AND SCOPE .................................................................................................................. 1 2. AIR EMISSIONS ....................................................................................................................................... 3 2.1 INTRODUCTION TO AIR EMISSIONS FROM POWER GENERATION ............................................. 3 2.2 TRENDS OF AIR EMISSIONS FROM POWER GENERATION .......................................................... 7 2.2.1 A Decomposition Analysis of Sulfur Dioxide Emission Reductions .............................. 12 2.2.2 Major Pollutants from Electric Power Generation: Geographic Distribution .............. 15 2.2.3 The Clean Air Act .......................................................................................................... 19 2.2.4 Technology and Innovation in Pollution Control ......................................................... 25 2.3 PROJECTIONS OF AIR EMISSIONS FROM ELECTRICITY GENERATION ....................................... 27 2.4 PHYSICAL IMPACTS OF AIR POLLUTION FROM POWER GENERATION ..................................... 30 2.5 ECONOMIC EVALUATION OF IMPACTS ..................................................................................... 33 2.5.1 Methodological Considerations ................................................................................... 34 2.5.2 The Economic Cost of Air Pollution from Power Generation ...................................... 36 2.5.3 Air Quality Co-Benefits of CO2 Emissions Regulation .................................................. 45 3. IMPACTS TO LAND AND ECOLOGY....................................................................................................... 47 3.1 LAND-USE AND ECOLOGICAL IMPACTS OF POWER GENERATION ........................................... 48 3.1.1 Land Use Requirements of Power Generation ............................................................ 48 3.2 LAND USE AND ECOLOGICAL IMPACTS OF TRANSMISSION AND DISTRIBUTION ..................... 56 3.3 THE SITING AND PERMITTING OF ELECTRICITY INFRASTRUCTURE ........................................... 59 3.3.1 State Authorities for Infrastructure Siting ................................................................... 60 3.3.2 Federal Authorities for Infrastructure Siting................................................................ 61 3.3.3 Mitigation of Environmental Impacts .......................................................................... 62 3.3.4 Federal Initiatives to Modernize Permitting and Review Processes............................ 63 3.4 OPPORTUNITIES TO FURTHER REDUCE LAND USE AND ECOSYSTEM IMPACTS ....................... 66 4. WATER QUALITY .................................................................................................................................. 69 4.1 SOURCES OF WATER POLLUTION IN THE ELECTRIC POWER INDUSTRY ................................... 69 v 4.2 WATER QUALITY IMPACTS FROM POWER GENERATION ......................................................... 74 4.3 POLICIES REGULATING