THE DAVAO Light and Power Company (Davao Light) told consumers to expect minimal effects on the August-September rates due to the recent yellow alert status in Mindanao of the National Grid Corporation of the Philippines (NGCP).
Fermin Edillon, head of Davao Light’s Reputation Enhancement Department, said the declaration of NGCP could affect the power supply in Mindanao and eventually Davao City.
“Since there is a yellow alert, naa yata duha ka planta na nag shut down. So, affected ang power supply in Mindanao and it also affected the supply here in Davao,” Edillon said during the Habi at Kape forum on Wednesday.
To note, NGCP announced on Aug. 1 that Visayas and Mindanao grids would be placed under yellow alert from 6-8 p.m. due to multiple power plant outages.
The advisory reported the Mindanao grid has 2,827 MW of capacity available, with peak demand reaching 2,667 MW. It was lifted around 7 p.m.
A yellow alert is issued when the operating margin is insufficient to meet the transmission grid’s contingency requirement.
Edillon said the July-August billing rate stood at ₱8.70 per kilowatt-hour — one of the lowest in the Davao region.
While the rates have increased, it is still lower compared to previous months, such as in May 2025, where the rates amounted to P9.1053/kWh, and P9. 5514/kWh in April.
He stressed that while the advisory will impact the rates, it is expected to be minimal. As of press time, DLPC has yet to announce the rates for the Aug- Sept billing.
As of August 15, the available generating capacity of Mindanao is at 3,497 MW, with system peak demand of 2,316 and operating margin of 1,181.
