Luzon grid placed under yellow alert

MANILA, Philippines, May 31 ------ With several power plants either offline or operating at reduced capacity, the National Grid Corp. of the Philippines (NGCP) placed the Luzon and Visayas grids on red and yellow alert status. 

Under red alert status, power supply is insufficient to meet consumer demand and the grid’s regulating requirement. Yellow alert is raised when the operating margin is insufficient to meet the transmission grid’s contingency requirement. The NGCP said the situation might require manual load dropping (MLD). The Manila Electric Co. (Meralco) said it was ready to implement rotating power interruptions. 

In a statement, the NGCP said it put the Luzon grid under red alert from 2 to 4 p.m. and from 6 to 9 p.m., later extended until 11 p.m. Yellow alert was up from 1 to 2 p.m., 4 to 6 p.m. and 9 to 11 p.m. The Visayas grid was on yellow alert from 2 to 4 p.m., 6 to 7 p.m. and extended until 9 p.m. as 12 power plants went on forced outage and five running on a limited capacity. In its statement, the NGCP said 19 power plants in Luzon were on forced outage and three operating on derated capacities. The situation translated to unavailability to the grid of 2,117.3 megawatts. 

Peak demand in Luzon was 13,024 MW as against available capacity of 13,537 MW, while in the Visayas, peak demand was 2,440 MW vis-à-vis available capacity of 2,742 MW. 

Source: philstar.com