The impact of geologic variability on capacity and cost estimates for storing CO 2 in deep-saline aquifers
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While numerous studies find that deep-saline sandstone aquifers in the United States could store many decades worth of the nation's current annual CO 2 emissions, the likely cost of this storage (i.e. the cost of storage only and not capture and transport costs) has been harder to constrain. We use publicly available data of key reservoir properties to produce geo-referenced rasters of estimated storage capacity and cost for regions within 15 deep-saline sandstone aquifers in the United States. The rasters reveal the reservoir quality of these aquifers to be so variable that the cost estimates for storage span three orders of magnitude and average>$100/tonne CO 2. However, when the cost and corresponding capacity estimates in the rasters are assembled into a marginal abatement cost curve (MACC), we find that ~75% of the estimated storage capacity could be available for<$2/tonne. Furthermore, ~80% of the total estimated storage capacity in the rasters is concentrated within just two of the aquifers-the Frio Formation along the Texas Gulf Coast, and the Mt. Simon Formation in the Michigan Basin, which together make up only ~20% of the areas analyzed. While our assessment is not comprehensive, the results suggest there should be an abundance of low-cost storage for CO 2 in deep-saline aquifers, but a majority of this storage is likely to be concentrated within specific regions of a smaller number of these aquifers. © 2011 Elsevier B.V.
Published Version (Please cite this version)10.1016/j.eneco.2011.11.015
Publication InfoEccles, JK; Pratson, L; Newell, RG; & Jackson, RB (2012). The impact of geologic variability on capacity and cost estimates for storing CO 2 in deep-saline aquifers. Energy Economics, 34(5). pp. 1569-1579. 10.1016/j.eneco.2011.11.015. Retrieved from https://hdl.handle.net/10161/6609.
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Adjunct Professor of Earth & Ocean Sciences
Robert B. Jackson is the Nicholas Chair of Global Environmental Change in the Earth and Ocean Sciences Division of the Nicholas School of the Environment and a professor in the Biology Department. His research examines how people affect the earth, including studies of the global carbon and water cycles, biosphere/atmosphere interactions, energy use, and global change. Rob Jackson received his B.S. degree in Chemical Engineering from Rice University (1983). He worked four years for the Dow
Dr. Richard G. Newell is the President and CEO of Resources for the Future (RFF), an independent, nonprofit research institution that improves environmental, energy, and natural resource decisions through impartial economic research and policy engagement. From 2009 to 2011, he served as the administrator of the US Energy Information Administration, the agency responsible for official US government energy statistics and analysis. Dr. Newell is an adjunct professor at Duke University, where he
Gendell Family Professor of Energy and Environment
Lincoln Pratson is a professor in the Nicholas School of the Environment's Division of Earth & Ocean Sciences. He has been Chair of EOS, Director of the Duke University Energy Hub, Associate Director of the Gendell Center for Engineering, Energy & the Environment at Duke, served on the Executive Committee for the Research Triangle Energy Consortium (https://www.rtec-rtp.org/), and was a co-founder & co-director of the Sustainable Energy Fellowship (http://www.teachenergy.org/). Prats
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