
Co-Facilitators: Joe Dutton, AXIS Capital; Rajesh Pawar, U.S. DoE
Lead discussants: Mischa Repmann, Swiss Re; Natalia Dorfman, Kita; Paul Zakkour, CarbonCounts; Beth Hebditch, Carbon Capture and Storage Association; Richard Metcalfe, Quintessa; Jim White, British Geological Survey
The scalability of the carbon management industry heavily depends on the long-term durability of carbon storage systems, particularly concerning the potential for future CO2 reversal events (i.e. release back into the atmosphere). The integrity of carbon markets involving long-term CO2 storage operations is also significantly impacted by these challenges and related uncertainties. The unreliability of measuring mechanisms complicates the assessment of loss size, indemnity and pricing aspects.
Public-private partnerships (PPPs) may be a viable option for developing insurance solutions, with governments potentially serving as insurers of last resort, akin to insurance for nuclear power. Various risks, including legal, finance, compliance and litigation risks, may arise in shorter time horizons, alongside site-specific risks and community-acceptance issues that could lead to litigation and reputational risk.
Geological storage poses particular risks, including a higher potential for containment failure and CO2 leakage through geological faults, fractures and unexpected lateral migration, especially legacy wells, which pose the most significant risk of leakage and potential environmental issues such as water contamination. In-situ mineralisation introduces concerns such as uncontrolled rock formation and potential volume changes affecting subsurface integrity, as well as engineering fractures like fracking, which increases the risk of induced seismicity and ground movement.
Project information and organisation risk may include interface with other storage projects, particularly in cases involving multiple injections within a single geological formation, potentially heightening the risk for CO2 leakage.