Norfolk – The Virginia Port Authority on Thursday (Feb. 24) took delivery of two new fuel-efficient GenSet locomotives that will be used to build trains in the on-dock rail operation at Norfolk International Terminals.
The state-of-the-art units use GenSet technology, which is short for "Generator Set" or sets of engines turning a generator. This technology replaces the large diesel engine and generator found in almost all existing freight locomotives with two or three much smaller diesel engines and generators.
These smaller engines are similar to large off-road diesel engines and are EPA Tier III off-road / Tier II railroad compliant. Advanced computer technology allows for precise control of the engines, starting and stopping only as their power is needed.
While the outward appearance of the GenSet is similar to existing, older-technology locomotives, fuel consumption and exhaust emissions are significantly reduced by using smaller engines only when needed.
Environmental benefits of GenSets include:
Fuel savings of more than 20%, compared to existing diesel locomotive technology in side-by-side use, have been demonstrated.
Compared to a traditional locomotive in the same application, GenSet units have been shown to reduce NOx by 58 percent (mono nitrogen oxides), HC by 94 percent (hydrocarbons), CO by 37 percent (carbon monoxide) and PM by 80 percent (particulate matter).