First Officer reported loss of the right hand generator with associated load shedding on take off. The flight crew performed an air turn back and landing at departure airport.

Narrative

The Captain was the Flying Pilot and commenced the takeoff roll at approximately XA58Z. Both engines accelerated normally. Just prior to 100 kts. a power transfer occurred that resulted in the RH GEN falling offline along with both utility busses shedding. I announced the malfunction and the Captain continued the takeoff. During the climb out the Captain had me start the APU. After climbing to approximately 3;000 ft. the Captain turned on the AP and transferred aircraft control and radio duties to me. The Captain accomplished the appropriate checklist and shortly afterward the Generator failed again along with the Generator Drive. The appropriate checklist was completed. The Flight Attendants were notified of the problem. Dispatch and Maintenance were contacted and a diversion plan formulated to return to ZZZ. Meanwhile I coordinated with ATC for holding instructions to burn fuel to get to max landing weight. After holding the Captain again became the flying pilot and we proceeded to ZZZ for an uneventful landing. After landing the Captain conferred with ZZZ maintenance on the maintenance write up.