Article snapshot taken from Wikipedia with creative commons attribution-sharealike license.
Give it a read and then ask your questions in the chat.
We can research this topic together.
The first demonstration unit was released in August 2011 from NRE's Mount Vernon shops in Southern Illinois. It was built on a refurbished EMD SD40-2 frame.
On January 2014, Tobu Railway ordered 18 NRE 2GS36C-DEs, numbered 4403-4421, replacing the class 20 locomotives used from 1971-2014. Another 5 ordered by March 2014, becoming class 442, replacing class 722 locomotives.