GE Marine diesel engine certified EPA T4

GE Marine’s 12V250 marine diesel engine has received EPA Tier 4 certification, meeting NOx emission requirements through its non-Selective Catalytic Converter (SCR) technology, which requires no urea-based after-treatment.

GE cited a Jensen Maritime study which found that its urea-free solution takes up a quarter of the engine room space, and weight, of a competitor’s technology requiring use of urea. There are also space savings from eliminating the need for urea storage and equipment onboard, or at dockside support infrastructure.

 “Achieving this certification validates our unique ability to meet Tier 4 emissions requirements without the disadvantages of after-treatment,” said Afra Gerstenfeld, general manager of GE Marine. “Our non-SCR solution provides substantial operational benefits over urea-based solutions for the workboat marketplace.”

The company said it is also working towards Tier 4 and IMO Tier III certification for further models incorporating non-SCR technology, including its 16-cylinder V250 and 8-cylinder L250 marine diesel engines.

As reported, the 12V250 non-SCR model completed emission testing for EPA Tier 4i and IMO Tier III in the first half of 2013.

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