High upkeep costs? The article says: > Rail storage also does not have life cycle limits that batteries do. “There is zero degradation,” he said. They must be

High upkeep costs? The article says: > Rail storage also does not have life cycle limits that batteries do. “There is zero degradation,” he said. They must be using rails, wheels, and bearings made of unobtainum. I know little about conventional rail maintenance, but a quick search suggested annual grinding of rails and 10-year replacement intervals.