POWER consumers will see a slight increase in transmission rates in their November 2025 bills due to higher Ancillary Services (AS) rates, according to the National Grid Corporation of the Philippines (NGCP).
AS rates – pass-through costs for power supplied by power generators who are AS providers during supply-demand imbalance – rose by P0.0997 per kilowatt hour (kWh), from P0.6546/kWh in September to P0.7542/kWh in October, representing a 15.23% increase.
NGCP emphasized that it does not earn from AS and does not benefit from any change in AS prices, as these are remitted directly to generation companies with bilateral contracts with NGCP, and to the Independent Electricity Market Operator of the Philippines (IEMOP) for AS sourced from the Reserve Market.
Meanwhile, NGCP’s effective transmission wheeling rate, or the fee for delivering power through its grid, increased by just P0.0034/kWh, from P0.5920/kWh in September to P0.5953/kWh in October, equivalent to a 0.57% increase.
“The increase in effective transmission wheeling rates has no effect on NGCP’s revenue as its income is cap-limited by the Energy Regulatory Commission (ERC),” NGCP clarified.
Overall, the equivalent average transmission rate for the October 2025 billing period to be billed by distribution utilities and electric cooperatives increased by 7.91% to P1.5105/kWh, up from September’s P1.3998/kWh./PN
