Disclosed herein is a cascade system comprising a first zone disposed in fluid communication with a compressor configured to receive a fluid stream from a hydrogen gas source, and a second zone disposed in fluid communication with the compressor and with the first zone. The fluid communication of the first zone being such that the fluid stream is receivable from the compressor in response to a first control signal transmitted to a first controllable valve at the first zone. The fluid communication of the second zone being such that a fluid stream is receivable from the compressor and from the first zone in response to a second control signal transmitted to a second controllable valve at the second zone.