The energizing coil is a vital component used in the transporter system, which serves as one of the final components to handle a transport pattern prior to materialization.
In instances when there are difficulties in the rematerialization sequence, the transporter chief may request more power to the energizing coil from Engineering. (TNG: "The Next Phase")
The primary energizing coil is susceptible to being damaged if an energy burst is intercepted by a transporter beam. (DS9: "Our Man Bashir")
A boost to the gain of the energizing coils would be performed to alleve interference with the integration matrix, in cases when there was an power surge in the pattern buffer. (DS9: "The Darkness and the Light")
When the primary energizing coils are malfunctioning, the malfunction may interfere with a transporter's imaging scanners. (VOY: "Counterpoint")