The evaluation of the changes in the emission of toxic compounds resulting from the power supply for the ships in portseffected by means of the shore power

During their stay in harbours the ships generate the electric energy for their needs most frequently by ship’s power plant through Diesel generating sets. In many ports, however, there is also a possibility to supply the ship with electric power by use of the shore power connection. Using such sources in some cases may contribute to reduce the emissions of toxic compounds. This article presents the results of the comparative analysis of the emission levels in both cases of electric supply basing on the measurements conducted on two ferries and Dolna Odra power plant nearby Szczecin.