||Given the required speed of roll-out, cost and complexity of the future CCS infrastructure in the UK, modelling will play a crucial role in ensuring a practical, cost effective and robust network of assets. Modelling can potentially support decisions at a range of business levels, from strategic planning through to plant & system operation and maintenance. Through detailed strategic analysis and stakeholder engagement, the ETI has identified that a need exists to develop a Modelling Tool-Kit for partial (but full-chain) CCS systems to develop understanding of and support business decisions around the design, operation and maintenance of assets (eg power stations, compressor stations) within a future CCS system. In order to define the requirements for such a Modelling Tool-Kit, the ETI commissioned a short FRP Project, led by E4tech and supported by Process System Enterprises (PSE) and Amec. The project made recommendations on the functionality of the component & whole system models and the modelling environment within which such models would be developed. Based on the project’s recommendations, the ETI launched a Request for Proposals for a full project to develop a Modelling Tool-Kit in October 2010.