Transmission wheeling rates, or the fees collected by the National Grid Corporation of the Philippines (NGCP) for delivering electricity, went down by 0.27 percent in the May 2025 billing period, but rates for Ancillary Services (AS) rose by 9.29 percent.
From P0.4605 per kilowatt-hour in April, transmission wheeling rates dropped to P0.4593/kWh in May, the NGCP said in a press release June 11.
AS rates, on the other hand, went up, from P0.5175/kWh in April to P0.5655/kWh in May, or an increase of P0.0480/kWh.
“As a pass-through cost, AS rates are only collected by the NGCP and remitted directly to generation companies,” the grid operator clarified.
AS, also known as support services used to balance and stabilize the grid during power supply-demand imbalance, are sourced from the AS reserve market, or from AS providers with bilateral contracts with NGCP.
Overall average transmission rates is at P1.1482/kWh, up by 4.60 percent from April’s P1.0978/kWh, the NGCP said. ||
