The GE ES44AC is a type of diesel-electric locomotive built by GE Transportation. It is part of the Evolution Series and is designed for heavy freight service. The locomotive features a powerful engine that produces 4,400 horsepower, allowing it to haul large loads efficiently across various terrains. Equipped with advanced technology, the ES44AC meets stringent environmental standards, reducing emissions compared to older models. It is commonly used by major freight railroads in the United States, contributing to the transportation of goods across long distances while ensuring reliability and performance in demanding conditions.