Carbon Emission Reduction of Shore Power from Power Energy Structure in China

Shore power has been developed as a port green technology. However, China's electricity is still mostly coal-fired, which produces many carbon emissions. Coupled with regional differences, shore power is by no means certain to lower carbon emissions compared with fuel throughout China. This paper considers the power energy structure in different areas, establishes a carbon emission correlation model between fuel and shore power during ship berthing, and calculates the feasibility, emission reduction effect and basic berthing time of shore power in coastal ports. The results show that only a small part of coastal provinces and cities are suitable for using shore power, and it is limited by the berthing time of the ship. However, this condition is not related to the size of ships but related to the proportion of power generation. Therefore, the government should develop shore power according to local conditions to truly achieve zero carbon emissions