Electricity transmission rates in August increased by 7.09 percent to P1.4171 per kilowatt-hour (kWh), a rise from July's P1.3233/kWh.
The primary driver for this increase was the higher cost of Ancillary Services (AS) from the reserve market, which climbed to P0.6659/kWh in August from P0.5872/kWh in July.
NGCP stated that these AS costs are influenced by market forces, including increased spot quantities and rising prices, with oil-based power plants contributing to the adjustment.
In contrast, the transmission wheeling rate, the fee for electricity delivery through the grid, saw only a marginal increase to P0.5970/kWh in August from P0.5923/kWh in July.
The National Grid Corp. of the Philippines (NGCP) clarified that it does not profit from AS charges, as these are passed on to consumers and do not contribute to the company's earnings.
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