Petilla said the plant is scheduled to resume operations on Thursday. Compounding last Friday's power outage was Maynilad Water Services Inc.'s announcement of supply interruption in its service area beginning on the same day following a significant decrease in the flow of raw water from Angat Dam. Valte said the National Power Corp. "is watching the levels at the dams" and is "engaged actually in cloud seeding in cooperation" with the Department of Agriculture "so we can get rain in the right places." The National Grid Corp. of the Philippines (NGCP), the country's grid operator, restored the white alert over the Luzon grid yesterday after a red alert last Friday. "The system is normal," the NGCP said in an advisory.