Geologic Sequestration Training and Research (GSTR) -
Recovery Act: “Carbonsheds” as a Framework for Optimizing US CCS Pipeline Transport on a Regional to National Scale
Performer: Duke University
Project No: FE0001943
NETL partnered with Duke University (Duke) to use "carbonsheds," a concept developed by Duke, as a framework for optimizing CO2 transport on an integrated technical, economic, societal, and environmental basis. Duke defined the carbonsheds concept as a region in which the estimated cost of transporting CO2 from any CO2 source location in the region is more cost effective than piping the CO2 to a storage site outside the region. Duke mapped out carbonsheds on a regional-to-national scale using Geospatial Information System (GIS) software (Figure 1). The principal inputs to GIS included the possible locations of storage sites to be considered, as well as a cost map for pipeline construction, operation, and maintenance that was developed from digital maps of U.S. land cover types, surface slopes, major infrastructure, and demographics. The end result subdivided the country into regions of economically efficient CO2 transport from a range of possible CO2 source locations to a major sink.
The scope of this project included estimations of optimal CO2 pipeline transport pathways from possible CO2 capture sites to possible storage options. Computational modeling was coupled with GIS to characterize and optimize the transport system under current and possible future technological, economic, social, and environmental constraints. A key source of information and data for the effort was the National Carbon Sequestration Database and Information System (NATCARB). Duke used GIS to integrate the NATCARB data with other available information to build geographically based economic and environmental models of CO2 transport on a regional-to-national scale. These models were used to explore system design options and their dynamics under possible national economic/policy scenarios.