The Visayas Grid will continue to be on red and yellow alerts on Thursday, Aug. 27, said the National Grid Corporation of the Philippines (NGCP).
In an advisory, the NGCP said the Visayas Grid will be placed under red alert from 5 a.m. to 8 p.m.
It will then be placed under yellow alert 2 p.m. to 5 p.m. and 8 p.m. to 9 p.m.
‘A red alert status is issued when power supply is insufficient to meet consumer demand and the transmission grid’s regulating requirement,’ the NGCP said.
Meanwhile, a yellow alert is issued when the operating margin ‘is insufficient to meet the transmission grid’s contingency requirement.’
According to the NGCP, the red and yellow alerts continued as nine power plants remained on forced outage, while 16 plants were still running on derated capacities.
This number of compromised plants reflected a total of 916.2 megawatts unavailable to the grid.
Furthermore, Visayas’ large coal plants TVI 1, TVI 2 and KSPC 1 also remained unavailable as only limited power imports could also be received from Mindanao.