Mobile power generation system including fixture assembly

A method for using a fixture to position a generator pad assembly in a mobile power generation system, the method comprising:

• seating a plurality of mounting pads of the fixture atop a plurality of generator pads;
• disposing the plurality of generator pads on one or more datum reference points on an internal base of the mobile power generation system in a desired alignment position comprising an x-position and y-position with respect to the internal base;
• removing the fixture from the plurality of generator pads;
• seating the plurality of mounting pads of the fixture atop a respective plurality of sole plates;
• establishing the respective plurality of sole plates attached to the fixture in a floating z-position with respect to the plurality of generator pads to form the generator pad assembly;
• pouring a chocking compound around the generator pad assembly;
• curing the chocking compound for a period of time;
• and
• removing the fixture from the generator pad assembly such that the generator pad assembly with the chocking compound after curing is in a set position configured to receive an electrical generator in a seated position.