description GE ET44AC (GEVO) Overview
The GE ET44AC is a heavy-haul diesel-electric freight locomotive manufactured by GE Transportation (later Wabtec) and introduced in 2012. It is part of the Evolution Series, built to comply with the United States Environmental Protection Agency's Tier 4 emissions standards to significantly reduce nitrogen oxide and particulate matter. Powered by a 12-cylinder GEVO engine and utilizing AC traction motors, this six-axle locomotive is widely operated by major North American freight railroads.
help GE ET44AC (GEVO) FAQ
What does the ET44AC designation mean for GE locomotives?
The "ET" in ET44AC designates that the locomotive meets the EPA's Tier 4 emissions standards, significantly reducing particulate matter and nitrogen oxides. The "44" stands for 4,400 horsepower, and "AC" means it utilizes AC traction motors instead of DC. It is part of GE Transportation's Evolution Series (GEVO).
When was the GE ET44AC introduced?
The GE ET44AC was introduced in 2012 to comply with the United States Environmental Protection Agency's Tier 4 emissions standards. It was designed to replace the older ES44AC model. This heavy-haul diesel-electric freight locomotive is now produced by Wabtec following their acquisition of GE Transportation.
What is the horsepower rating of a GE ET44AC locomotive?
The GE ET44AC is rated at 4,400 horsepower. It generates this immense power using a GE GEVO 12-cylinder diesel engine. This allows the locomotive to efficiently pull extremely heavy freight trains across North America.
How does the ET44AC reduce emissions compared to older locomotives?
The ET44AC incorporates an exhaust gas recirculation (EGR) system to meet the strict EPA Tier 4 emissions requirements. This system significantly cuts down on the nitrogen oxides and particulate matter expelled by the massive 12-cylinder diesel engine. The engine itself also burns cleaner and more efficiently than previous GEVO models.
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