National Grid Corp. of the Philippines announced Wednesday that power consumers can expect a decrease in transmission rates in their January 2026 electric bills.
The overall average transmission rate for the December 2025 billing period, charged this month, declined 0.68 percent to P1.3455 per kilowatt-hour from P1.354 per kWh.
Broken down, the ancillary services (AS) rate is P0.5971 per kWh for the period. AS decreased by 3.95 percent, or P0.0246 per kWh. AS charges pertain to the cost of services sourced from the AS reserve market and from providers with bilateral contracts with NGCP.
NGCP’s transmission wheeling rate—the fee for delivering electricity through the grid—is P0.6058 per kWh, an increase of P0.0164 per kWh.
“For the January 2026 electric bill of end consumers, NGCP charges only P0.60 per kWh for the delivery of its services,” NGCP said, adding that its revenues are capped and regulated by the Energy Regulatory Commission (ERC).
The transmission rate for the December billing period is billed to end users through distribution utilities and electric cooperatives. NGCP previously called for the unbundling of transmission charges to help consumers better understand the different components reflected in their bills.
NGCP said a significant portion of transmission charges in recent years has been driven by AS costs, which do not accrue to the company. These are fully collected and remitted to AS providers in line with regulatory requirements.
Another component reflected in transmission charges is the feed-in tariff allowance (FIT-ALL). NGCP clarified this is not charged to distribution utilities and electric cooperatives but only to consumers directly connected to the grid.
“Over the past year, AS rates formed the bulk of transmission charges following the shift to all-firm AS contracts and the commercial operations of the ancillary services reserve market,” NGCP said.
“Together with FIT-ALL, these are pass-through costs which NGCP does not earn from. The company is obligated to collect and remit these charges in full to AS providers and to TransCo for the FIT-ALL,” the company added. “It is only proper that these be clearly separated from transmission wheeling rates, which represent NGCP’s actual charge for power delivery services.”
