B767 First Officer reported they experienced electrical; fuel pump and EEC issues during climbout resulting in a diversion.

Narrative

We were climbing through FL270 when there was an electrical interruption on the right side. We called back to have the Relief Pilot return to the flight deck. In addition to the electrical issue; we also lost the Right Center Fuel Pump and Right EEC (Electronic Engine Control). The checklist enabled us to successfully restore power to the right side. As a crew; we completed all the appropriate checklists. After the checklists were completed; we still had a failure of the Right Center Fuel Pump and Right EEC. We talked to dispatch and maintenance control about the issues with the aircraft. Both the company and the crew agreed that the best and safest option was to divert to ZZZZ. We were overweight for landing; and the company and crew agreed that dumping fuel over Country X was the best and safest course of action. After the fuel was jettisoned and the flight attendants and passengers were thoroughly briefed; we made an uneventful approach and landing at ZZZZ. All write-ups were made in the maintenance logbook. The crew returned the next day to fly the aircraft without passengers back to ZZZ. The flight to ZZZ was completed without any issues.