Wärtsilä has won a contract from Harvey Gulf International Marine to deliver an integrated propulsion system for two additional LNG offshore support vessels (OSVs).
Under the deal, Wärtsilä will deliver an integrated system that includes the dual-fuel machinery, the electrical and automation package, complete propulsion and also the LNG fuel storage and gas conditioning system. The order from Harvey Gulf follows an earlier order in October 2011, taking Harvey Gulf’s LNG powered fleet on order to four vessels.
Harvey Gulf CEO Shane Guidry said the company’s decision to become the leader in Clean Gulf of Mexico operations has been enthusiastically accepted by oil company executives, and was the impetus for adding two additional LNG dual-fuel vessels to the fleet.
"These vessels, like their two sister-ships, will meet the highest emission standards that exist today – and even higher standards that haven’t been created yet," Guidry said.
"We recognize the strong stance on environmental protection by the administration in the wake of the oil spill, and are doing our part to respond to it and provide our customers support for their environmental commitments."
Wärtsilä has developed an efficient dual-fuel engine technology which allows the same Wärtsilä 34DF engine to run on either gas or diesel fuel, complying with the full US Environmental Protection Agency (EPA) emission norms.
When dual fuel engine runs on gas mode it reduces nitrogen oxides (NOx) by some 85% compared to diesel operations, reduces sulphur oxide (SOx) emissions completely (as gas contains no sulphur) while emissions of CO2 are also lowered.
Wärtsilä Ship Power North America vice president John Hatley said the company is witnessing a true paradigm change, and it’s a very exciting time for LNG fuelled vessels in the Gulf of Mexico.
"Millennia ago the shift was oar to sail, two centuries ago it was sail to steam, a century ago steam to diesel, now it’s a new era for gas.
"We are pleased to continue as a partner with Harvey Gulf as they reaffirm their commitment by adding more safe and clean LNG fuelled vessels to their modern fleet," added John Hatley, VP Ship Power, Wärtsilä North America.
Wartsila’s integrated solution also contains the complete LNG fuel storage and gas conditioning system and a low loss concept (LLC) of electrical distribution.