MANILA, Philippines — Power-grid operator National Grid Corp. of the Philippines (NGCP) issued a yellow alert Wednesday afternoon due to the lack of contingency reserves.
A yellow alert is given when the reserves are lower than the biggest import from a single interconnection, which is currently the Sual coal-fired power plant at 1,294 megawatts (MW).
The power firm said in an advisory Wednesday that Luzon has a capacity of 10,208 MW and a peak demand of 9,370 MW. It leaves a reserve of 838 MW from 2-4 p.m.
The Manila Electric Co. (Meralco), on the other hand, said the yellow alert was cut to 1-3 p.m. due to the complete return of the Sual power plant. The firm serves more than 5.8 million customers in Luzon.
On Tuesday, the Luzon grid was also placed on yellow alert from 11 a.m.-4 p.m.
The distribution utility explained the following units were on outage: 302-MW GN Power unit 1, 140-MW Southwest Luzon Power Generation Corp. unit 1, 50-MW Angat Main unit 2.
The Pangilinan-led firm noted two units are also on maintenance shutdown, namely 382-MW Pagbilao unit 2 and 180-MW Kalayaan unit 3.
It added Calaca unit 1 was derated to 180 MW from 200 MW, while Malaya 2 has a lower capacity at 150 MW from 350 MW. PNA/northboundasia.com