NGCP power lines (File photo from the Philippine Daily Inquirer)
MANILA, Philippines — The National Grid Corporation of the Philippines (NGCP) placed the Luzon grid to yellow alert on Thursday afternoon to evening.
In an advisory on Thursday, the yellow alert will be from 1 p.m. to 10 p.m.
READ: Luzon grid under yellow alert on Wednesday afternoon, evening
The NGCP said that the unplanned outage of San Gabriel with 417.4-megawatt that tripped on Wednesday and deration of Santa Clara Power Corporation 1-4 with 150-megawatt each contributed to the grid alert status.
The country’s grid operator has also placed the Luzon grid in yellow status on Wednesday from 3 p.m. to 9 p.m. but the alert status was lifted at 6 p.m. due to a decrease in forecast demand.
A yellow alert is issued “when the operating margin is insufficient to meet the transmission grid’s contingency requirement.”