“All grids are normal today based on the current supply and demand forecast,” the NGCP said in an advisory.
The grid operator, however, warned that a major plant outage or a significant increase in projected demand in the Visayas may still trigger a yellow alert.
The Visayas grid has an available capacity of 2,642 megawatts (MW) against a peak demand of 2,282 MW.
The islands-cluster has been experiencing weeks of being under yellow alert due to thin power reserves resulting from forced outages and reduced capacities at several plants.
A yellow alert is issued when the operating margin is insufficient to meet the transmission grid’s contingency requirement.
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While supply is still enough to meet current demand, it no longer reaches the required safety margin.
At this level, the possibility of rotational power interruptions increases.
