The most powerful design among NRE's multi-engine “N-ViroMotive” genset locomotives is the 2GS36C-DE. Its name stands for two engines with a total of 3,600 hp and three axles per bogie. Power comes from two Cummins QSK50L, each with 16 cylinders and 1,800 hp. The prototype was built in August 2011 on the frame of an EMD SD40-2. Since no further orders have followed and NRE's locomotives with the smaller QSK19 were more successful, only one prototype remained.