More than 80% of Puerto Rico customers remain without power after massive outage  CNNMuch of Puerto Rico remains in the dark after massive New Year’s Eve power outage  NBC NewsPuerto Rico Power Outages Plunge Many Into Darkness on New Year’s Eve  The New York TimesPower outage leaves most of Puerto Rico in the dark on New Year’s Eve  Fox NewsPuerto Rico Power Outage Leaves Almost Entire Island in Dark  Bloomberg