• GILBERT P. BAYORAN
Due to insufficient power supply, the National Grid Corporation of the Philippines (NGCP) yesterday placed Visayas, including Negros Island, under Yellow Alert status.
In a statement it issued, NGCP said a yellow alert is issued when the operating margin is insufficient to meet the transmission grid’s regulating and contingency requirement.
The Department of Energy (DOE) said in a statement the red and yellow alerts were raised due to the tripping of the Bolo-Masinloc 230-kilovolt Line 2 in Luzon.
Reduced generation supply in Luzon affected export to the Visayas grid, where a yellow alert was raised from 5 p.m. to 6 p.m. yesterday.
The DOE likewise ordered the NGCP to explain the power interruptions within 24 hours, “as the situation emanated from a transmission line.”*
