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Wartsila introduces new hybrid-powered tug design series

Wartsila introduces new hybrid-powered tug design series
Technology group Wartsila has introduced a new portfolio of hybrid-powered, environmentally-friendly tugs branded as the Wartsila HYTug series.

Wartsila said that tugs are particularly affected by environmental considerations due to their operations in or close to harbours and populated areas, and the need for regulatory compliance is becoming an increasing concern for tug owners and operators worldwide.

While Wartsila has already introduced tugs featuring LNG fuel propulsion under the Wartsila LNGTug designs, the recently introduced Wartsila HY hybrid propulsion solution forms the basis of the new designs, the benefits of which include the flexibility and efficiency provided by the technology.

Notably, the enhanced efficiency enables the total installed main engine power to be less than with conventional designs. Using less engine power also decreases exhaust emission levels and, therefore, the environmental impact. It also reduces the fuel bill and lessens the amount of engine maintenance needed, which again adds to the cost savings.

“We believe that new tugs will in future rely more and more on battery and hybrid propulsion, which very well complements today’s operational requirements,” said Riku-Pekka Hagg, vice president, ship design, Wartsila Marine Solutions.

The Wartsila HYTug designs give operators the option to select either diesel mechanical hybrid or diesel electric hybrid propulsion, and the designs cover a 40- to 90-tonne bollard pull range with the appropriate Wartsila equipment.