Spot prices rise in early May on higher power demand
ELECTRICITY spot prices rose in early May, driven by higher demand, the Independent Electricity Market Operator of the Philippines (IEMOP) said on Tuesday.
Average electricity prices at the Wholesale Electricity Spot Market (WESM) rose 12.1% to P7.85 per kilowatt hour (kWh) a month earlier.
“Demand in May is around 15,651 (megawatts) which is relatively high compared to the April billing as the heat index continues to increase,” Chris Warren C. Manalo, assistant manager of IEMOP’s market simulation and analysis division, said in a briefing.
Supply during the period was 19,786 MW, 3.1% higher compared to the 19,199 MW a month prior.
The WESM price in Luzon increased 18.9% month on month to P7.88 per kWh.
Supply was 14,144 MW, up 6.3% from a month earlier, while demand rose 10.1% to 11,348 MW.
In the Visayas, the average spot price declined 3.4% to P8.43 per kWh.
IEMOP said supply in the Visayas was 2,425 MW, up 3.2% from a month earlier. Demand rose 8% to 2,162 MW.
“For the ongoing May billing for Mindanao, the price is around P6.98 (per kWh),” Mr. Manalo said. The spot price in Mindanao a month earlier had been P6.43 per kWh.
Mindanao’s supply fell 9.4% to 3,218 MW from a month earlier while demand rose 3.7% to 2,140 MW.
Arjon B. Valencia, manager of corporate planning and communications at IEMOP, said that the demand is expected to ease during the transition to the wet season.
“The expectation is as we transition to the wet season, the temperature we’re experiencing will gradually fall, and with that, consumption will be lower,” Mr. Valencia.
“Historically, as you know, when the second half of June comes, that’s when it rains. Of course, that means our demand will ease,” IEMOP Vice-President for trading operations Isidro E. Cacho, Jr. said.
In its advisory, the government weather service, known as PAGASA (Philippine Atmospheric, Geophysical and Astronomical Services Administration), said that El Niño continues to weaken but impacts such as hotter and drier conditions still persist.
PAGASA said the likelihood for La Niña to develop from June to August is 60%.
YELLOW ALERT
In an advisory early Tuesday, the National Grid Corp. of the Philippines (NGCP) placed the Luzon grid on yellow alert between 1 p.m. and 4 p.m. and between 7 p.m. and 10 p.m.
The NGCP said that the available capacity was 14,687 MW while peak demand was 13,507 MW.
Some 18 power plants were on forced outage between 2023 and May 2024 while six are running at derated capacity, resulting in 2,075.8 MW lost to the grid, according to the grid operator.
The Visayas grid was also put under yellow alert between 2 p.m. and 4 p.m. and between 6 p.m. and 9 p.m.
Available capacity was 2,933 MW while peak demand was 2,614 MW.
One power plant in the Visayas has been on forced outage since 2022, two since 2023, and two between January and March. A total of 11 power plants were out between April and May while five are running derated.
Some 514.1 MW was unavailable to the grid.
A yellow alert is issued when the operating margin is insufficient to meet the transmission grid’s contingency requirements. — Sheldeen Joy Talavera