Rotating brownouts this summer anticipated
Following the power outages in Metro Manila and nearby areas on Saturday, Manila Electric Company external communications manager Joe Zaldarriaga said rotating brownouts this summer could be triggered by transmission constraints, reports Manila Bulletin.
Meralco said it implemented manual load dropping, which caused rotating power interruptions, for three hours on Saturday after receiving information that the San Jose-San Manuel transmission line tripped despite the relatively low demand for electricity at the time.
System operator National Grid Corporation of the Philippines (NGCP) said they are still looking into what caused the power line tripping. The "three downed transformers" have been "back online" since yesterday, NGCP spokesperson Cynthia Alabanza told Manila Bulletin. She added that aside from overloading, power line tripping could be caused by falling trees or branches.
The Department of Energy (DOE) said the Saturday power interruption is an isolated incident and "need not be interpreted as summer brownouts," reports Manila Bulletin. Earlier, they expressed confidence that there will be no rotating brownouts this summer caused by the generating capacity and demand for power. However, they said power outages could be caused by transmission constraints and technical glitches.
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