The impact of financing structures on the cost of carbon dioxide transport
研究了不同融资结构（公共、私人、RAB）对管道、驳船、火车和船舶运输二氧化碳成本的影响，发现公共融资最经济，成本差异可达26%。
The economic operation of carbon capture and storage (CCS) facilities hinges on the availability of CO 2 transport infrastructure, and the financing structure of new transport assets will affect CO 2 transport cost. Building on economic studies of infrastructure finance in other sectors, we empirically calibrate the cost of capital and operational efficiency under different financing structures, considering CO 2 transport via pipelines, barges, trains, and ships in a levelized transport cost model. Our results show that the choice of financing structure can result in transport cost differences of up to 26% for pipelines, with smaller effects observed for the other transport modes. Generally, public finance emerges as the most cost-effective financing structure for all CO 2 transport modes; the advantages of a lower cost of capital compared to private finance options outweigh the associated operational efficiency disadvantages. While additional aspects beyond cost must be considered when selecting financing structures for new infrastructure assets, our ex-ante analysis underlines the importance of financing structures for the economic viability of CO 2 transport assets, and for CCS more broadly. • Evaluates how different financing structures affect CO 2 transport costs. • Assesses CO 2 transport cost implications across public, private, and RAB financing. • Public finance is the most cost-effective financing structure for CO 2 transport. • Low cost of capital advantages outweigh efficiency disadvantages of public finance. • Transport financing costs are influenced by changes in general interest rates.