Davao Light and Power Co. (Davao Light) has reduced its overall residential electricity rate to P12.90 per kilowatt-hour (kWh) for the billing period August 11 to September 10, 2026.
The latest rate is P0.19 per kWh lower than the previous month’s rate of P13.09/kWh, providing a modest reduction in electricity costs for residential customers.
Davao Light said the movement in the overall rate reflects changes in the different components of the electricity bill, particularly those influenced by prevailing power supply conditions, electricity demand, and market prices.
Davao Light said these factors affect the cost of electricity and may cause the overall rate to fluctuate from one billing period to another.
Since the previous billing cycle, Davao Light has also continued implementing mitigating measures approved by the Energy Regulatory Commission (ERC) to help manage the impact of changing electricity costs on customers’ bills.
The September rate comes after electricity prices increased in the previous billing period, making the latest P0.19/kWh decrease a welcome relief for consumers.
Meanwhile, Davao Light continues to closely monitor the Mindanao power supply situation following the Red Alert advisory issued by the National Grid Corporation of the Philippines (NGCP) on September 3 amid tight supply conditions in the grid.
The tight supply is attributed to the unavailability of several generating units while electricity demand remains high. Davao Light has activated measures to help minimize the impact on customers and manage the available power supply.
However, power interruptions may still be experienced as part of efforts to manage the situation.
NGCP said the need for such measures may lessen if supply conditions improve or demand remains manageable.
According to the NGCP’s Mindanao Grid Alert Status update as of 8 a.m. on September 4, the Mindanao grid was placed under Red Alert from 1 p.m. to 9 p.m., with Yellow Alert from 10 a.m. to 1 p.m. and 9 p.m. to 10 p.m.
NGCP reported an available capacity of 2,549 MW against a peak demand of 2,592 MW.
As of September, eight generating plants were on forced outage, while 11 plants had been on outage since August, four since July, one since June, two since January, one since 2025, and one since 2024.
NGCP added that six plants were operating at derated capacities, resulting in a total of 784.5 MW of capacity unavailable to the grid.
NGCP identified the unavailability of Mindanao’s large coal plants, GNPK Units 1 and 2 and TSI Unit 2, as among the factors contributing to the Red and Yellow Alert declarations.
A Red Alert is issued when power supply is insufficient to meet consumer demand and the transmission grid’s regulating requirement.
A Yellow Alert is issued when the operating margin is insufficient to meet the transmission grid’s contingency requirement.
