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Ancillary services

Overall Transmission rates down in June 2026 consumers’ electric bills

by Contributor June 16, 2026

written by Contributor

Power transmission service provider NGCP announced a reduction in overall transmission rates for end consumers this June, driven by lower transmission wheeling and ancillary services (AS) rates.

For the May 2026 billing period, overall average transmission rates declined by 9.33% to PhP1.4492/kWh, from PhP1.5983/kWh in April.

The decrease was due to lower wheeling and AS rates. NGCP’s transmission wheeling rates went down by 6.99%, from PhP0.6028/kWh in the April 2026 billing period to PhP0.5607/kWh in the May 2026 billing period.

Meanwhile, AS rates decreased by 10.73% to PHP0.7220/kWh, compared to PhP0.8088/kWh in April.

Transmission wheeling rates refer to what NGCP charges for its core service of delivering electricity, while AS rates cover the pass-through costs of services sourced from the Reserve Market and from providers with bilateral contracts with NGCP to stabilize the grid during power supply-demand imbalances. “For the June 2026 electric bill of end consumers, NGCP charges only 56 centavos per kWh for the delivery of its services,” NGCP said, adding that its revenues are revenue-capped and regulated by the Energy Regulatory Commission (ERC).

June 16, 2026 0 comments

Ancillary Services drive increase in August 2025 transmission rates

by Contributor September 18, 2025

written by Contributor

Higher Ancillary Services (AS) costs pushed up transmission rates in August 2025, NGCP announced.

The overall equivalent average transmission rate for the August 2025 billing period rose by 7.09% to PhP1.4171/kWh, up from July’s PhP1.3233/kWh.

AS charges climbed by PhP0.0787/kWh, from PhP0.5872/kWh in July to PhP0.6659/kWh in August.

AS rates are pass-through costs for power supplied by AS providers during supply-demand imbalance. Charges are remitted directly to generating companies with bilateral contracts with NGCP, and to the Independent Electricity Market Operator of the Philippines (IEMOP) for AS sourced from the Reserve Market.

NGCP does not earn from AS and does not benefit from changes in AS prices.

Meanwhile, NGCP’s transmission wheeling rate—or the fee for delivering power through its grid—barely changed, inching up by PhP0.0047/kWh, from PhP0.5923/kWh in July to PhP0.5970/kWh in August.

“For August 2025, NGCP charges only about PhP0.5970/kWh for its transmission service, while Ancillary Services remain the biggest component of transmission-related costs,” the grid operator said.

September 18, 2025 0 comments

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Ancillary services drive July 2025 transmission rates up

by Contributor July 15, 2025

written by Contributor

Power consumers can expect higher transmission rates this July 2025, with the bulk of the increase driven by Ancillary Services (AS) rates, NGCP announced.

For the June 2025 billing period, both AS and NGCP’s transmission wheeling rates increased, but the surge in AS costs accounts for most of the adjustment.

Overall equivalent average transmission rates for the June 2025 billing period increased by 5.49% to PhP1.2113/kWh, from May’s PhP1.1482/kWh.

The increase was driven by a 9.32% increase in ancillary service rates in the June 2025 billing period. From PhP0.5655/kWh in May, AS rates increased to PhP0.6182/kWh.

AS rates pertain to the pass-through costs for power supplied by AS providers to stabilize the grid during power supply-demand imbalance. AS charges are remitted directly to generating companies with bilateral contracts with NGCP, and to the Independent Electricity Market Operator of the Philippines (IEMOP) for the AS sourced from the Reserve Market.

The AS cost for Visayas for the June 2025 billing period includes the 6th and last tranche of the settlement of the remaining 70% AS from the Reserve Market during the March 2024 billing period whose recovery was deferred by the ERC.

NGCP does not earn from AS and does not benefit from the movement in prices.

Meanwhile, NGCP’s transmission wheeling rates slightly increased by 0.39%, from PhP0.4593/kWh in the May 2025 billing period to PhP0.4611/kWh in the June 2025 billing period.

Transmission wheeling rates are what NGCP charges for its primary service of delivering power.

“For the July 2025 electric bill of the end consumers, NGCP charges only PhP0.46/kWh for the delivery of its services,” NGCP explained, adding that AS still accounts for the bulk of transmission charges.

July 15, 2025 0 comments