Silicon extrusion plant - with a silicon extruder, - with a silicon feed device configured to load the silicon extruder, - the silicon feed device having -- a feed hopper, which opens into a feed opening disposed at the bottom thereof, said feed opening being in a fluidic connection, via a feed duct, with an inlet zone of the silicon extruder, -- a feed screw arranged in the feed hopper in such a way as to be drivable for rotation, the feed screw protruding into the feed opening at least partly, - at least one feed drive device for driving the silicon feed device, - at least one feed pressure sensor configured to measure an actual feed pressure of silicon material to be extruded, the feed pressure sensor being arranged in a transition region between the silicon feed device and the silicon extruder, - a control unit, which is in signal communication with the feed pressure sensor and the feed drive device and configured to define a nominal feed pressure and to transmit an actuating signal to the feed drive device depending on a difference detected between the nominal feed pressure and the actual feed pressure, - at least one feed temperature sensor configured to measure an actual feed temperature of the silicon material to be extruded, the feed temperature sensor being arranged in a transition region between the silicon feed device and the silicon extruder, and the feed temperature sensor being in signal communication with the control unit, - wherein the feed hopper is drivable for rotation, - wherein the feed drive device has a feed rotary drive on the one hand and a feed hopper rotary drive on the other, the rotary drives (10, 15) being configured independently of one another. - with a silicon extruder, - with a silicon feed device configured to load the silicon extruder, - the silicon feed device having -- a feed hopper, which opens into a feed opening disposed at the bottom thereof, said feed opening being in a fluidic connection, via a feed duct, with an inlet zone of the silicon extruder, -- a feed screw arranged in the feed hopper in such a way as to be drivable for rotation, the feed screw protruding into the feed opening at least partly, -- a feed hopper, which opens into a feed opening disposed at the bottom thereof, said feed opening being in a fluidic connection, via a feed duct, with an inlet zone of the silicon extruder, -- a feed screw arranged in the feed hopper in such a way as to be drivable for rotation, the feed screw protruding into the feed opening at least partly, - at least one feed drive device for driving the silicon feed device, - at least one feed pressure sensor configured to measure an actual feed pressure of silicon material to be extruded, the feed pressure sensor being arranged in a transition region between the silicon feed device and the silicon extruder, - a control unit, which is in signal communication with the feed pressure sensor and the feed drive device and configured to define a nominal feed pressure and to transmit an actuating signal to the feed drive device depending on a difference detected between the nominal feed pressure and the actual feed pressure, - at least one feed temperature sensor configured to measure an actual feed temperature of the silicon material to be extruded, the feed temperature sensor being arranged in a transition region between the silicon feed device and the silicon extruder, and the feed temperature sensor being in signal communication with the control unit, - wherein the feed hopper is drivable for rotation, - wherein the feed drive device has a feed rotary drive on the one hand and a feed hopper rotary drive on the other, the rotary drives (10, 15) being configured independently of one another.