TY Offshore Builds Harvey Gulf’s 6th OSV

Gulf Coast Shipyard Group (formerly Trinity Offshore) in Gulfport, and Harvey Gulf have signed a contract for the construction of the 6th Offshore Support Vessel. With this 6th vessel, Harvey Gulf will become the largest owner and operator of LNG powered OSV’s in the world.

These OSV’s represent an ongoing collaborative effort by the vessel designer, Harvey Gulf, ABS and the USCG to develop the most environmentally friendly OSV’s that will operate in the Gulf of Mexico, complying with the stringent ABS Enviro+ notation.

Harvey Gulf CEO , Shane J. Guidry , announced the signing, saying, “My commitment to our clients, the environment and our industry is clear. We are the only company in America building Offshore Supply Vessels utilizing liquefied natural gas (LNG) as its fuel source regardless of the fact that these vessels have a construction cost of twenty (20%) percent higher than a conventional Offshore Supply Vessel.”

John Dane III, TY Offshore’s President and CEO, stated, “We appreciate Harvey Gulf’s confidence in our shipyard. To have several follow on orders — and to be building the largest LNG fleet in the world — is significant for us. We are delighted to show our commitment to evolving LNG technology through our engineering and build skills. Of course, the confidence Harvey Gulf puts in us also ensures steady employment over the next 36 months.”

The vessels are powered by cleaner – burning natural gas and will achieve “ ENVIRO+, Green Passport ” Certification by the American Bureau of Shipping. The requirements for this certification include, among others, that the vessels be continuously manned with a certified Environmental Officer, be completely constructed with certified environmentally – friendly materials, and have advanced alarms for fuel tanks and containment systems. These are the first OSV’s to achieve this certification, making them the most environmental friendly OSV’s in Gulf of Mexico. To achieve environmentally friendly status, the vessels will be outfitted with Wartsila’s 6L34DF (DF=Duel Fuel LNG/Diesel ) Gensets, Wartsila Transverse and Steerable Thrusters, Wartsila Switchgear and Wartsila I.A.S. Machinery Control, Alarm and Monitoring System. Operating in LNG mode provides less noxious emissions than with diesel fuel. The system is designed to maximize fuel efficiency and economical power generation for all operating conditions and is ABS certified. The two AC propulsion drive motors each have a maximum continuous rating of 3620 HP (2700 kW), variable input speed up to a maximum RPM continuous rating.

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Press Release, June 11, 2013