Hybrid Power Module Receives AIP

Wärtsilä’s said its hybrid power module, the Wärtsilä HY, has been granted Approval in Principle (AIP) by ABS, a global provider of classification and technical advisory services to the marine and offshore industries. This AIP follows another issued by ABS in 2017 for Wärtsilä’s hybrid propulsion tug designs.

The Wärtsilä HY is a fully integrated hybrid power module that combines engines, an energy storage system, and power electronics optimized to work together through a newly developed energy management system (EMS), the company said. It is the marine sector’s first hybrid power module of this type produced, according to the company.

In order to match the specific demands of different market segments, Wärtsilä HY comes in highly customizable forms, the company said. The standard mechanically driven configuration includes the main engine with clutch; PTO/PTI on the gearbox (or in-line shaft generator/motor); energy storage system; DC link and power drives; EMS. The standard electrically driven configuration includes: the generating set; energy storage system; DC link and power drives; EMS.

“This AIP is an important step in the development of our eco-friendly hybrid propulsion system, which can be applied to a variety of vessel types. By working with ABS, we are demonstrating the viability of hybrid vessels in a range of applications and highlighting the capability to the US Market and further afield,” said Giulio Tirelli, director, Sales & Business Intelligence, Wärtsilä Marine Solutions.

ABS grants an AIP at an early conceptual design phase to assist the client in demonstrating project feasibility to its project partners and regulatory bodies. Clients have an option to request an AIP at an early concept design phase or in later design phases. Through concept engineering evaluation and concept risk assessment, the AIP process confirms that the proposed novel concept that includes the new technology complies with the intent of the most applicable ABS Rules and Guides as well as required appropriate industry codes and standards, subject to a list of conditions.

“This is the latest example of how ABS is collaborating globally with innovative companies like Wärtsilä to expand approval of hybrid designs for power and propulsion options. We recognize the significant economic and environmental benefits of hybrid-powered vessels and are committed to supporting the development of alternative power applications that optimize efficiencies,” said Demetri Stroubakis, ABS director Equipment and Materials.

With the increased industry focus on environmental compliance and operational performance, many ship owners and operators are shifting their attention to electric propulsion and non-conventional sources of power, the company said. The ABS Advisory on Hybrid Electric Power Systems has been published to provide guidance in the development of new concepts.

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