Appendix A - Underground Hydrogen Storage Sites in the Continental U.S.
Stewart et al of the National Renewable Energy Laboratory (NREL) have evaluated potential sites for storing hydrogen underground in the continental US [A-1]; they identified three types of storage sites:
As shown in these three figures, most areas of the United States are close to one or more of these three hydrogen underground storage options
Figure A.1 Salt Deposits in the US
Figure A.2 Oil and Gas Fields in the US
Figure A.3 Sedimentary Basins in the US
Reference for Appendix A
[A-1] D. Stewart et al., “Lifecycle Cost Analysis of Hydrogen versus Other Technologies for Electrical Energy Storage,” The National Renewable Energy Laboratory, NREL/TP-560-46719, Nov 2009.