VIDEO: Wartsila launches new hybrid power module

A typical system arrangement with the Wärtsilä HY for a tugboat application, in diesel-mechanical configuration with shaft motor/generator

MAY 31, 2017 — Leveraging its technical strengths in both engine design and electrical & automation (E&A) systems, Wärtsilä has launched a fully integrated hybrid power module, the Wärtsilä HY.

Wärtsilä has already won its first contract for the system, it was signed at the Norshipping event yesterday by Italy’s Rimorchiatori Riuniti, the biggest owner and operator of tugs in the Mediterranean Sea region, and is for a unit that will provide the power for a new 80 TBP (tons bollard pull) harbor tug,

The marine industry’s first hybrid power module of its kind, the Wärtsilä HY combines engines, an energy storage system, and power electronics optimized to work together through a newly developed energy management system (EMS).

There is a notable trend in the marine sector towards hybrid propulsion solutions, which are anticipated to represent a significant percentage of all contracted vessels within the coming ten years. The new Wärtsilä EMS represents the latest generation integrated control system, and has been specifically designed for this application. It creates an outstanding means of interaction with the ship’s onboard systems.

The Wärtsilä HY will provide a wide range of customer benefits through increased operational efficiency and flexibility, resulting in lower fuel consumption, reduced emissions, and improved vessel performance.

When operating in “Green Mode,” zero emissions can be achieved. Smokeless operation is also achievable at all load points and in all operating modes, thanks to a new patent pending automation procedure. Furthermore, the reduction in engine operating hours lowers maintenance requirements and extends the intervals between overhauls. The Wärtsilä HY ensures that the overall vessel performance is greatly improved compared to operating on conventional machinery solutions or hybrid solutions, while the higher level of redundancy promotes increased safety. Other benefits include instantaneous load acceptance with rapid response to step-load changes, entire system certification and guaranteed performance.

Classification society Lloyds Register (LR) has issued an Approval in Principle (AIP) certificate for the Wärtsilä HY. The certificate is based on technical material and safety analyses, concerning normal operation of the system and a presentation of risk scenarios. In effect it means that the system design as examined can be expected to be granted full class approvalfor actual projects.

“LR is proud to issue an Approval in Principle certificate to the Wärtsilä HY hybrid power module,” said LR Marine & Offshore Director, Nick Brown. “LR, like Wärtsilä, is committed to tackling the big challenges facing the industry, especially those environmental challenges related to carbon emissions. LR is focused on supporting the safe and effective introduction of new technologies offering the potential solutions, and hybrid technology is one of those.”

“Wärtsilä’s unmatched product portfolio and broad range of in-house capabilities and expertise enables us to develop products such as the Wärtsilä HY, which combines technologies from different fields,” says Giulio Tirelli, Director, Marine Engineering, Wärtsilä Marine Solutions. “This development opens the door to a new era of marine technology that would have been unimaginable until very recently. It endorses Wärtsilä’s leadership in front-end innovation providing unrivaled benefits to our customers and partners

The Wärtsilä HY will have dedicated versions for each category of vessels. While the first versions being made available will be designed for tugs and medium sized ferries. Wärtsilä also sees big potential in other types of vessels as well. This is the first launch of a new product of this type where each individual version is dedicated to a specific market to secure an optimal fit to the requirements of the specific application.