B787 flight crew reported diverting to an alternate airport due to a generator failure.

Attributes
ACN	1600467
Time
Date	201812
Local Time Of Day	1201-1800
Place
Locale Reference	ZZZ.ARTCC
State Reference	US
Aircraft 1
Make Model Name	B787 Dreamliner Undifferentiated or Other Model
Operating Under FAR Part	Part 121
Flight Phase	Cruise
Flight Plan	IFR
Component
Aircraft Component	Generator Drive
Person 1
Function	First Officer Pilot Not Flying Relief Pilot
Qualification	Flight Crew Multiengine Flight Crew Instrument Flight Crew Air Transport Pilot (ATP)
Experience	Flight Crew Total 11279 Flight Crew Type 311
Person 2
Function	First Officer Pilot Not Flying
Qualification	Flight Crew Multiengine Flight Crew Instrument Flight Crew Air Transport Pilot (ATP)
Events
Anomaly	Aircraft Equipment Problem Less Severe

Narrative:

I was international relief officer on scheduled rest break when notified to return to cockpit. Generator failure; checklist completed in accordance with flight manual. Flight unable to continue to destination due to additional APU fuel burn. Company decided to have us divert to [a nearby alternate] for multiple reasons including maintenance; passenger accommodation; crew legality; and reserve crew availability. Captain decided to land overweight after considering all risk mitigations; threat evaluation; and crew agreed. Diversion and landing was completed without incident. Outstanding CRM; utilizing all crewmembers and outside resources.

Original NASA ASRS Text

Title: B787 flight crew reported diverting to an alternate airport due to a generator failure.

Narrative: I was International Relief Officer on scheduled rest break when notified to return to cockpit. Generator failure; checklist completed in accordance with flight manual. Flight unable to continue to destination due to additional APU fuel burn. Company decided to have us divert to [a nearby alternate] for multiple reasons including Maintenance; passenger accommodation; crew legality; and reserve crew availability. Captain decided to land overweight after considering all risk mitigations; threat evaluation; and crew agreed. Diversion and landing was completed without incident. Outstanding CRM; utilizing all crewmembers and outside resources.

Data retrieved from NASA's ASRS site and automatically converted to unabbreviated mixed upper/lowercase text. This report is for informational purposes with no guarantee of accuracy. See NASA's ASRS site for official report.