LUMA warns of load shedding and about 254 thousand customers are already without service

On July 22, 2026, NotiCel reports that LUMA Energy warned of a high probability of load shedding because of limited generation. Without having yet sent the notice, about 254 thousand customers already had no service around 6:40 p.m. The transmission-and-distribution operator puts operating reserve at minus 308 megawatts. On social media, LUMA says it is not responsible for generation and that it keeps communication with the generators to minimize the impact.

The warning comes after EcoEléctrica unit number 1 went offline in the morning, and after Costa Sur 5 and EcoEléctrica 1 reduced about 500 megawatts of available capacity, according to the text. Energy czar Josué Colón Ortiz reports that Costa Sur 5 went offline at 5:45 p.m. because of a problem in its hydraulic system. Genera staff corrected the fault and began the start-up to synchronize it at night. Those two trips, he says, cut about 500 MW.

Minus 308 MW of reserve and about 500 MW less of capacity are two magnitudes of the same afternoon, spoken by LUMA and by Josué Colón Ortiz. They are not averaged. On July 21, NotiCel had put a little more than 133 thousand without power because of San Juan 6. On the 16th, on the order of 188 thousand because of Costa Sur 6. This July 22 note is the peak of 254 thousand and the negative sign on reserve. They are not collapsed into a single outage of the week.

Another note the same 22nd covers Costa Sur 5's nighttime entry to ease about 400 MW of deficit. Warning, hydraulic trip, and synchronization are three chapters of one day. Here it covers LUMA's notice and the 254 thousand of 6:40 p.m. Genera speaks in the czar's piece, not with a statement of its own in this text.

NotiCel does not publish a feeder map or a megawatt forecast for the early hours. The reader who wants LUMA's or Josué Colón Ortiz's feeds has the URL at the foot. This is not original reporting.

Source: NotiCel. https://noticel.com/noticias/20260722/luma-advierte-sobre-relevos-de-carga-y-se-disparan-los-clientes-sin-servicio/