I work at Siemens. Reports of this factory's death are greatly over-exaggerated.
As stated, this rolling shutdown is part of the PG division's greater shut down. The industry is experiencing a multi-year contraction of new app demand. There is also a move towards delaying service on existing equipment for as long as feasible. Both of these are hurting Charlotte's traditional bread and butter of utility scale turbine work. BUT, Siemens is adapting, like any good company does. The good sign for Charlotte (not so much for other places), is this factory is the premier facility in North America for Siemens Power Generation. To keep the plant viable, management has shut down several facilities around the US and is moving the work to Charlotte. We also are looking to take on work from other divisions that we normally would not have touched (such as wind turbine components).
Demand for gas turbines, steam turbines, and generators will come back. There are several Nuclear Plants scheduled to be decommissioned in the next decade, along with a slew of coal plants. As much as we want a zero carbon future, a stable grid will always be deemed more important.