Dina Lomotan, Meralco’s corporate communications manager, said the company has received an advisory from the National Grid Corporation of the Philippines (NGCP) that it has raised the “yellow alert” for the grid.
The NGCP spokesperson, Cynthia Alabanza, said the Luzon grid went on yellow alert on Thursday. “This means that while power plants in the Luzon grid can still meet the demand of consumers, our (power) reserve is quite thin,” Alabanza explained.
She said the reserve had hit 300 megawatts, half of the ideal 647 megawatts.
The Power Situation Outlook posted on the NGCP’s website on Friday left blank the system capacity, system peak and reserve levels for the Luzon grid.
Figures on the website are usually updated daily.
Lomotan said it would be best for Meralco customers to start conserving electricity at home or at commercial establishments.
“We should still save electricity since we’re on yellow alert. We have a low reserve. Hopefully no power plant will go offline, or else the reserve will get wiped out,” she said.
Meralco had apparently scheduled brownouts in Cavite (Kawit, Imus) and Metro Manila (Caloocan, Las Piñas, Pasig, Tondo, Balintawak, Kamuning, Katipunan) from 10 to 11 a.m. and 1 to 2 p.m. on today.
The morning brownouts did not push through, because the demand was low.
“There was a reduction in system demand probably because we made an advisory on air,” she said.
Power demand is usually low during Saturdays, Lomotan said.
The Department of Energy (DoE) said the yellow alert for the Luzon grid came as a result of the shutdown of three plants, the Calaca coal-fired power plant and the Sta. Rita and San Lorenzo natural gas-fired power plants.
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