Hawaii Electric Light reports a brief power interruption occurred on Friday, July 1, when a combustion turbine unit at its Keahole Power Plant tripped offline.
Maintenance crews were testing the unit (CT5) when it unexpectedly tripped. About 15,000 customers in various areas of the island experienced a six-minute power interruption while backup generators were started. Service was restored to all affected customers at 9:38 a.m.
“We’re in the process of investigating what caused the unit to suddenly trip,” said Rhea Lee-Moku, Hawaii Electric Light spokesperson. “We sincerely apologize for any inconvenience the interruption may have caused and want to thank the community for their patience and understanding.”