First PSV with onboard DC grid

05 Apr 2013

The first vessel to feature ABB’s onboard DC grid system, the PSV ‘Dina Star’, has been delivered to Myklebusthaug Offshore of Norway by shipbuilder Kleven.

ABB claims that this system will allow the ship to operate at the highest energy efficiency level in order to minimize emissions.

The 93m Dina Star is designed by Marin Teknikk, and is of about 5,000dwt. It will serve as a multipurpose oil field supply and construction vessel in the North Sea. The scope of supply for the DC Grid system included all power, propulsion, automation and advisory systems.

The DC grid distributes power through a single DC circuit rather than relying on the normal multiple DC connections made to thrusters and propulsion drives from an AC circuit, which ABB says can provide provide significant power savings.

“We are delighted that the first vessel equipped with ABB’s Onboard DC Grid system has been delivered and are confident its performance will provide Myklebusthaug Offshore with a competitive edge,” said Veli-Matti Reinikkala, head of ABB’s Process Automation division. “We are also looking forward to the opportunities ahead through Dina Star’s built-in capabilities to utilise supplementary onboard power from renewable energy sources.”

The company adds that for the time being the DC Grid is available in low voltage with an installed power up to about 20MW, the system being particularly applicable to offshore vessels operating in DP mode. The system configuration cuts out the requirement for bulky AC switchboards and propulsion transformers, increasing the available space and deadweight.

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