Preliminary assessment of underground hydrogen storage sites in Ontario,Canada |
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| Affiliation: | 1. Romanian Association for Hydrogen Energy, Rm. Valcea, Romania;2. National Research and Development Institute for Cryogenics and Isotopic Technologies ICTI, Rm. Valcea, Romania;3. University POLITEHNICA of Bucharest, Bucharest, Romania;4. Old Dominion University, Norfolk, VA, USA;5. National Research and Development Institute for Industrial Ecology INCD-ECOIND, Rm. Valcea, Romania;1. Mineral and Energy Economy Research Institute Polish Academy of Science, Poland;2. Polish Geological Institute – National Research Institute, Warszawa, Poland;1. Institute of Geosciences, Friedrich Schiller University Jena, Burgweg 11, D-07749 Jena, Germany;2. Institute of Petroleum Engineering, Clausthal University of Technology, Agricolastr. 10, D-38678 Clausthal-Zellerfeld, Germany;3. Institute of Geosciences, Johannes Gutenberg University Mainz, J.-J.-Becher-Weg 21, D-55128 Mainz, Germany;1. Amphos 21 Consulting S.L., Passeig Garcia i Faria, 49-51, 08019, Barcelona, Spain;2. Université Toulouse III – Paul Sabatier, Route de Narbonne 118, 31062, Toulouse, France |
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| Abstract: | The replacement of coal-fired power plants with increasing proportions of renewable and nuclear energies in the province of Ontario highlights the need to balance seasonal energy demands. This can be achieved through power-to-gas technology, where excess energy is used to generate hydrogen gas through electrolysis, and the generation is coupled with underground hydrogen storage. This article presents a preliminary assessment regarding the potential for underground hydrogen storage in geological formations including salt and hard rock caverns, depleted oil and gas fields, and saline aquifers in Ontario, highlighting potential locations where future storage could be feasible. Southern Ontario presents many potential storage options, including Silurian bedded salts, depleted Ordovician natural gas reservoirs, saline aquifers in Cambrian sandstone and hard rock caverns in argillaceous limestones. Hard rock caverns in Precambrian crystalline rocks of the Canadian Shield are also discussed, in addition to the potential for the use of lined rock caverns. This work aims to provide a basis for further research regarding the appropriate location of underground hydrogen gas storage facilities in Ontario. |
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| Keywords: | Underground hydrogen storage Ontario Salt deposits Deep saline aquifers Depleted hydrocarbon deposits Hard rock caverns |
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