A power supply facility for supplying an electrolysis plant with electrical energy has a rectifier and a first transformer arrangement with a primary side drawing electrical energy from an alternating voltage grid and a secondary side supplying the electrolysis plant with the electrical energy via a DC link. The power supply facility has an additional unit with a second transformer arrangement, a transistor power converter and a DC-DC converter. The primary side of the second transformer arrangement is connected in series with either the primary side or the secondary side of the first transformer arrangement. The transistor power converter is connected to the secondary side of the second transformer arrangement and the DC-DC converter. The DC-DC converter is connected to the DC link of the rectifier.

Systems and methods are disclosed for automated power plant unit trip prediction and control. Power plant controls may have limited time to manage the plant loads when one of the units trips unexpectedly. To mitigate any consequences on a power grid associated with a trip event, these systems and methods may allow for prediction of such trip events. The predictions may allow a signal to be provided to a controller in sufficient time for the controller to automatically take any necessary action to mitigate any impacts of the future trip event.