Clean North Sea Shipping – Improved Dissemination and Impact (CNSS-IDI) builds on the successful Interreg IVBb project Clean North Sea Shipping (CNSS). A research driven project on emission and greenhouse gas reduction from ships through the use of available technology and implementation of cleaner energy solutions for ships in ports or at sea.

CNSS created an increased awareness and provided key-input for strategic and operational policy-building among regional and national stakeholders, politicians, ports and shipping companies.

As a result from the CNSS-project three emission modelling tools were developed for different purposes and end-users;

  • EmPort(Ant)
    Emission Model for the Port (of Antwerp) was developed by the Port of Antwerp (in collaboration with consultant Witteveen + Bos) to calculate and visualize the emissions of ocean going vessels in port areas. This model is also applicable to other ports. For more information on the EmPort(Ant) tool, please email Mr. Luc Van Espen,
  • North Sea Emission Tool
    Developed by Helmholtz-Zenter Geesthacht, the North Sea Emission Tool empowers policy and decision makers as well as the industry and scientific community with key information on emission gas spread and aggregation in the North Sea region. More information about the tool can be found at
  • The Voyage Prediction Tool
    In the CNSS project engine load dependent emission factors for poisonous and GHG gases were developed using emission data from 250 ship’s engines. The updated emission factors have been implemented in a voyage emission prediction simulation tool, developed at Newcastle University.
    Two versions of the tool have been developed; a simplified version suitable for educational and public engagement purposes on the environment and emission factors and a second version for professionals in the maritime industry, for example to allow voyage optimisation for reducing air-borne emissions. For more information on the two different versions, please email Prof. Kayvan Pazouki,

CNSS-IDI’s main objective is to communicate the tools, hence educate the community and better position the maritime industry to handle emission gas related issues and build on the knowledge gained in CNSS.

More information about the project can be found at