Cstore1

The CStore1 project (deepC Store) is a groundbreaking initiative to establish Australia and the Asia-Pacific region’s first floating, multi-user carbon capture and storage (CCS) hub. It will handle end-to-end CCS operations from capturing and liquefying CO₂ at various industrial sites to transporting it via ships to an offshore Floating Storage and Injection (FSI) hub, where the CO₂ will be temporarily stored and then injected into nearby deep geological formations. Designed to be both modular and scalable, CStore1 is capable of storing between 1.5 to 7.5 million tonnes of CO₂ per year, with the flexibility to expand by adding additional carriers and FSI facilities. With freed-up access to offshore depleted reservoirs and saline aquifers, this floating hub enables cost-effective proximity to storage sites, reducing infrastructure burdens. The project is positioned to support decarbonization targets across the Asia-Pacific, in line with international climate goals and Australia’s ambition to become a regional CCS leader. The CStore1 (deepC Store) partners combine complementary CCS capabilities: Technip Energies provides CO₂ capture, liquefaction, and offshore facility engineering; CSIRO supports subsurface characterization and storage site validation; Add Energy Group delivers injection well design and subsurface operations expertise; and Mitsui OSK Lines supplies maritime CO₂ transport and shipping logistics. Japanese partners JX Nippon Oil & Gas Exploration, Kyushu Electric Power, Osaka Gas, and Toho Gas contribute project development experience, offtake demand, and investment support to enable cross-border CO₂ transport and long-term offshore storage.