CONSUMERS can expect lower transmission rates in May, following a significant reduction in both transmission wheeling rates and Ancillary Services (AS) rates for the April 2025 billing period, the National Grid Corporation of the Philippines (NGCP) announced last week.

Overall equivalent average transmission rates for the April 2025 billing period dropped by 28.45% to P1.0904/kWh from March’s P1.5240/kWh.

Reductions in both transmission wheeling rates and AS rates drove the decrease. Transmission wheeling rates are what NGCP charges for its primary service of delivering power, while AS rates pertain to the pass-through costs for power supplied by AS providers to stabilize the grid during power supply-demand imbalance.

NGCP’s transmission wheeling rates went down by 16.35%, from P0.5505/kWh in the March 2025 billing period to P0.4605/kWh in the April 2025 billing period.

“For the May 2025 electric bill of the end consumers, NGCP charges only 46 centavos per kWh for the delivery of its services,” NGCP explained, adding that AS still accounts for the bulk of transmission charges.

Average AS rates for the April 2025 billing period decreased by 36.07% to P0.5175/kWh, compared to P0.8094/kWh in the March 2025 billing period. (Contributed)

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