THE Department of Energy (DoE) said Luzon was under yellow alert Thursday between noon and 3 p.m. due to power plant outages and limited output received from the Malampaya gas field.

In an advisory, Energy Secretary Alfonso G. Cusi said the Department of Energy (DoE) is seeking explanations from the National Grid Corp. of the Philippines, generating companies, and the Malampaya operator.

Forced and extended power outages were reported at coal-fired plants run by Team Energy in Pagbilao, Quezon , Southwest Luzon Power Generation Corp. in Calaca, Batangas; San Buenaventura Power Ltd. in Mauban, Quezon; and San Miguel Corp. subsidiary Masinloc Power Partners Co. Ltd. in Masinloc, Zambales.

Angat Hydropower Corp., First Gen Hydro Power Corp., and San Roque Power Corp., also reported limited power output due to low water levels.

The DoE said that based on its power forecast, the National Capital Region has sufficient supply to meet rising demand as it shifts to a more permissive general community quarantine.

“The energy industry must work together to ensure sufficient and stable power supply at all times. We also ask our industry players to approach us for any assistance the Department could provide to fast track the necessary restoration activities,” Mr. Cusi said. — Revin Mikhael D. Ochave