Jenniffer González Colón was sworn in Thursday as Puerto Rico’s new governor during a normally ebullient ceremony held amid widespread anger over a blackout that hit the U.S. territory days ago. González,

Nearly half of the island’s 1.4 million utility customers had power by late Tuesday night. The electricity provider said it would take up to 48 hours to fully restore service.

A major power outage plunged much of Puerto Rico into darkness on New Year's Eve, with the US island territory's electric utility saying restoration could take up to two days.