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Wärtsilä Dual-Fuel Receives EPA Certificate

Applies to U.S. flagged vessels; fuel flexibility offers emissions compliance, cost savings

Posted on April 15, 2013

Wärtsilä has obtained certification of emissions standard compliance from the U.S. Environmental Protection Agency (EPA) for its Wärtsilä 34DF dual-fuel engines. Wärtsilä anticipates that the passing of this compliance milestone will enable the company to strongly enter the American market with marine engine technology that offers operators and owners the option of using either diesel or gas as fuel.

The certification was obtained in January 2013.

The first engines will equip the Harvey Energy, an offshore supply vessel built for Harvey Gulf International Marine. Four sister vessels will shortly be supplied with the same Wärtsilä engines, further demonstrating both the viability of liquefied natural gas (LNG) as a marine fuel and its growing popularity among ship owners and operators, the company said. LNG fueled vessels offer operational cost savings and environmental benefits.

EPA certification applies to United States flagged vessels. The Wärtsilä dual-fuel engine capability enables ships to be operated on either conventional liquid marine fuels or LNG. Wärtsilä said the switch between fuels can be made without loss of power or speed, and this fuel flexibility enables compliance with emissions regulations in controlled areas while giving operators the option of determining the fuel according to cost and availability.