Philippines transmission rates dip in October 2025 electric bills

The National Grid Corporation of the Philippines (NGCP) announced a slight decline in overall transmission rates for end consumers in October 2025 due to lower transmission wheeling and ancillary service charges.

Average transmission rates for the September 2025 billing period decreased by 1.23 percent to PHP 1.3998 per kilowatt-hour (kWh), down from PHP 1.4171/kWh in August.

The drop was attributed to reductions in both transmission wheeling rates, which cover the cost of delivering electricity, and ancillary service (AS) rates, which ensure grid stability.

AS rates reflect pass-through charges for services from the Reserve Market or NGCP’s bilateral contract providers, and are not income sources for the grid operator.

NGCP clarified that it does not profit from AS charges, as these are remitted directly to power generation companies.

Transmission wheeling rates dropped by 0.84 percent from PHP 0.5970/kWh in August 2025 to PHP 0.5920/kWh in September 2025.

“For the October 2025 electric bill of the end consumers, NGCP charges only 59 centavos per kWh for the delivery of its services,” the company said.

NGCP noted that AS still comprises the majority of total transmission charges on electric bills.

Average AS rates fell by 1.70 percent to PHP 0.6546/kWh in September 2025 from PHP 0.6659/kWh the previous month.

The NGCP continues to play a critical role in maintaining grid reliability, especially as energy demand grows and market reforms take shape in the Philippine power sector.