Quintessa's on-line database of generic features, events and processes (FEPs) relating to systems analysis for geological storage of CO2 was established in 2004 and currently has over 1000 registered users. A review of its use, which was presented at the GHGT10 conference, revealed the database to be a proven valuable tool for 'top-down' auditing and 'bottom-up' conceptual model building and has thereby helped to build confidence in wide-ranging long-term geological storage assessments. The database continues to be developed (e.g. for the marine environment) and suggestions for further improvements are always welcome. For more information, please contact Russell Walke.