This paper presents linear models of the most common components in the value chain for CO 2 capture and storage. The optimal investment planning of new gas power plants traditionally includes the cost of fuel versus sales of electricity and heat from the plant. If a new power plant also causes additional investments in gas infrastructure, these should be included in the optimization. With the increasing focus on global CO 2 emissions, yet another aspect is introduced in the form of technology and infrastructure for capture, transport, and storage of CO 2 . To be able to include all these aspects in the planning of new power plants, linear models for CO 2 capture and storage are formulated consistent with current models for gas, electricity, and heat infrastructures. This paper presents models for the following CO 2 infrastructure: source, combined cycle gas turbine producing electricity, heat and exhaust, capture plant, pipeline, liquefaction plant, storage, ship transport, injection pump, and demand/market. Index Terms-CO 2 , carbon dioxide capture and storage (CCS), linear programming (LP), power system planning.