The tested propulsion configuration in TRIPOD is considered a state-of-the-art solution, which is technically very promising. It has a high potential in fuel savings and emission reductions. Analysis of data obtained in model tests determined improvements reached in energy savings of up to about 5 percent for the retrofit scenario and 10 percent for the new building one.

Study of the viability of the new propulsion solutions is made also by performing economical cost benefit analysis for the operation of the reference ships. It was concluded that if the investment level can be brought down, obviously in close cooperation with the relevant specialist suppliers, ship-owners will be interested to explore further installation opportunities especially in new-building projects of large container ships. In summary, the real economic criteria to evaluate business proposals have to be applied to each particular case, they vary from project to project, from business case to business case and from market situation to market situation.

TRIPOD supports the EU policy for a better environment, in particular the greening of surface transport. The technical developments proposed within the project will enable more versatile and efficient propulsion systems.

Significant energy savings and consequently lower emissions are expected from the application of TRIPOD implying cleaner environment. Energy recovery concepts based on the counter-rotating propeller principle and in advanced tip loaded propellers are the key factors to produce such effects. Additionally, pod propulsion make it easier to implement the CRP philosophy avoiding complicated mechanisms in the shaft, and permit more flexibility in defining hull forms with more uniform wakes at the propeller plane.

The new propulsion system will make it possible to set as design goal propulsion units of lower noise and vibration levels. Two main factors will contribute to the reductions: smaller optimum diameter of the CRP unit as compared to the original propeller (i.e. larger gaps between propeller and hulls) and reduction of loading per unit area as a consequence of splitting the propulsive load between two propellers. Noise/vibration attenuation both improves the quality of life on board and reduces harmful impacts on the environment.