Jun 20 – 22, 2018
Trieste (Italy)
Europe/Rome timezone

Hybrid system design and performance basing on actual vessel operational data

Jun 21, 2018, 9:45 AM
Oceania (Trieste (Italy))


Trieste (Italy)

Stazione Marittima
Environment protection, electric system and ship energy efficiency Machinery and Systems Design


Mr Lorenzo Brigati (Wartsila Italia SpA)


The recent trend of marine industry towards more efficient and versatile ships and lower emission has increased the interest in hybrid solutions. However, the spread of this technology has been limited by several factors both economical and technical. Among these, a recurrent issue is the sizing of Energy Storage System (ESS) which is strictly connected to the vessel’s typology, its operation and its control system . This paper presents an algorithm, developed within Wärtsilä Italia spa, for the extraction of sequential operating modes from data recorded on board of vessel, in order to properly design a feasible ESS. The paper shows a technical economic analysis carried on a small cruise vessel in order to identify competitive hybrid solutions compared to traditional configurations (engines running on conventional fuel or Liquid Natural Gas). Finally the paper compares two case studies of a small vessel powered only by fuel cells (in place of conventional engines) and batteries, in order to prove the potential benefits derived from such innovative technologies with different operational profiles, also in hybrid mode.

Primary author

Mr Lorenzo Brigati (Wartsila Italia SpA)


Prof. Alberto Traverso (University of Genoa) Mr Andrea Zotti (Wartsila Italia) Mr Thomas Lamberti (H2Boat Scarl)

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