(Reuters) -Utility firm Hawaiian Electric said on Tuesday it had begun rolling outages on Hawaii Island due to the unavailability and reduced output from several large generators. The Honolulu-based power company said its largest generator, Hamakua Energy, unexpectedly tripped offline late Tuesday afternoon and Puna Geothermal Venture was operating at a reduced capacity. Hawaiian Electric added one of its combustion turbines had tripped offline on Tuesday evening on the island, which contains the towns of Hilo and Kona. 5, Keahole CT-5, and Puna Steam Plant also are unavailable due to planned annual maintenance or repairs. Hawaiian Electric said the timing and extent of the outages would depend on the amount of demand on the system and the availability of generators.

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Persons: Keahole, Gursimran Kaur, Brijesh Patel, Janane Venkatraman, Jamie Freed Organizations: Reuters, Electric, Energy, Geothermal Venture, Puna Steam Locations: Hawaii, Honolulu, Hilo, Kona, Puna, Maui, Bengaluru