Wärtsilä has adapted its hybrid tug design and gained class approval for the Chinese market. It has received approval-in-principle recognition by the China Classification Society (CCS) for the Wärtsilä HYTug design.
This is based around Wärtsilä’s integrated hybrid power module that combines batteries with low fuel consumption engines. The power electronics have been optimised to work together through a newly developed energy management system.
This enables HYTug to operate in a ‘green’ mode producing no visible smoke as batteries supply the energy for general tug operations. During periods of towage or ship handling operations, engines provide the main power, assisted by the batteries.
Wärtsilä HYTug design is available in three different hull sizes:
- 28 m harbour tug with 50 tonnes bollard pull,
- 29.5 m harbour tug with 75 tonnes bollard pull
- 35 m escort tug with 75 tonnes bollard pull.
There are options to select diesel mechanical hybrid or diesel electric hybrid propulsion.
Wärtsilä used Riviera’s Asian Tug Technology & Salvage Conference in Singapore in September to initially launch its new portfolio of hybrid propulsion tug designs. For more information on hybrid propulsion for tugs, including electric drives, batteries, tug design and permanent magnet motors click here.