As a power redundancy phlogisten can be used to produce subordinate energy sources. Phlogisten rechargers can reinvigorate discharged Veridigen quite easily but not too efficiently. The process has been compared to filling a shot glass with a fire hose. The only time the strategy makes sense is when the main veridigen recharging system is off line. Phlogisten is also used to produce electricity through phlogisten powered generators and dynamos that are located in various areas of the ship.