Power outages are a frustratingly frequent occurrence for many Puerto Ricans. A string of blackouts during the summer prompted protests and a state of emergency.

Power was returned to more than three-quarters of Puerto Rico residents on Wednesday morning after a devastating blackout left nearly 80% of the Caribbean Island territory without electricity going into New Year's Eve.

New York: A blackout hit nearly all of Puerto Rico as the US territory prepared to celebrate New Year’s Eve, leaving more than 1.3 million people without power, according to an official source.