A new BNSF Gevo sits in GE's backshops along with the Hybrid unit, a new CSX Gevo, a few primer units, an older CSX AC4400, 10 unknown units for export, and GE's fleet of locomotives.
There are times when many engines, cars or cabooses are concentrated in a location. Such sites are for storage, economic reasons, active power needs or for rebuilding. For others, wear and tear have brought their usefulness to and end.