English to German Tech/Engineering Energy / Power Generation power supply

Es geht hier um Netzteile von Servermodulen.
Hier der Kontext:

All six power supplies are used *at 50% capacity* . Three of the power supplies are connected to one AC grid, while the other three are connected to another AC grid. When the system is running optimally in AC Redundancy mode, each power supply runs *at 50% capacity*. In case of failure, the power supplies on the functioning AC grid take over *at 100% capacity*.Therefore, the maximum power budget in AC Redundancy mode can only be 50% of the available power wattage.

Mir ist die Bedeutung klar, aber wie wird dies fachlich korrekt ausgedrückt.

Danke für Eure Hilfe