Thursday, November 28, 2019

Luzon grid on yellow alert again


By Lenie Lectura- November 27, 2019

THE Luzon grid was placed anew on yellow alert for 11 hours on Tuesday, the 48th this year.
Tuesday’s yellow alert happened due to insufficient operating power reserve brought about by the forced outage of several power plants.
Some of these power plants include the San Buenaventura Power Ltd. (SBPL) coal plant, Quezon Power Ltd. coal plant, AP Renewables Inc. geothermal plant unit 6, South Luzon Thermal Energy Corp., GN Power Mariveles unit 2 coal plant and Prime Meridian Power Corp. Avion natural gas plant unit 2.
These and some more plants that experienced Outside-Management-Control outage contributed a total of 1,716 megawatts (MW) that were unavailable to the grid.
Moreover, there are seven power plants—with a capacity of 2,176 MW—that are still on planned outage. These are the coal plants of TeaM Energy Corp., Pagbilao Energy Inc., Masinloc Power Partners Co. Ltd. and SEM-Calaca Power Corp.
The hydropower plant of CBK Power Ltd., the geothermal power plant of AP Renewables Inc. and the combined-cycle plant of Panasia Energy Inc. are also on planned outage.
Aside from the planned and unplanned outage incidents, some power plants did not deliver their full capacity.
In all, 5,310 MW of capacity was shaved off from the Luzon grid.
The Manila Electric Co. (Meralco) said it has advised its ILP (Interruptible Load Program) participants to deload, if needed.
“We are still waiting for ILP participants to give feedback today, but yesterday [Monday], 104 accounts confirmed availability to deload, equivalent to a deloading capacity of 213 MW,” said Meralco utility economics Head Lawrence Fernandez on Tuesday.
Last Monday, more than 4,500 MW was shaved off from the Luzon grid, also for the same reasons.
A yellow alert is issued when operating reserves have dropped below the required 647 MW contingency in Luzon, or equivalent to the largest unit in Luzon, which is the 647-MW coal-fired power plant in Sual, Pangasinan.

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