Approximately 270 megawatts of generation capacity was lost due to outage at San Juan plant unit #5 and limitations at Aguirre plant unit #2 ^[1] LUMA Energy stated that over 100,000 customers may experience power outages on Tuesday night due to generation deficits. ^[2] LUMA Energy reported the Puerto Rico electrical system has a 259 megawatt generation supply deficit. ^[3] On 28 October 2026, LUMA Energy announced it will implement rolling power blackouts on Wednesday afternoon due to power generation issues. ^[4] Genera PR spokesperson Iván Báez stated approximately 150,000 customers were affected by identical generation-related blackouts on the prior day. ^[5] LUMA spokesperson Hugo Sorrentini stated there is no estimated time for San Juan CT 5 and Aguirre 2 generation units to return online. ^[6]