Electric power generation (EPG) arrangements, such as generator sets for example, can be constructed with many different configurations depending on customer needs. Variations in the configuration include the placement of a circuit panel relative to a generator and the length of the generator. Multiple different electrical power transmission cabling arrangements are traditionally required to accommodate multiple circuit panel/generator configurations. An electrical power generation arrangement including a cabling guide that is positionable, as by rotation for example, in one of a plurality of rotary positions relative to the generator. The cabling guide is positioned in a selected rotary position based on the position of the circuit panel relative to the generator or the length of the generator or both. A cabling conduit can be connected between the guide and the circuit panel. Power transmission cabling extends from the generator through the cabling guide and through conduit to the circuit panel. The cabling guide permits ready customization to individual customer specifications regarding circuit panel placement and generator length or both.