Rappler
EXPLAINER: Why do rotational blackouts happen?
The National Grid Corporation of the Philippines (NGCP) lifted the red and yellow alert warnings over the Luzon grid on Wednesday afternoon, June 2, 2021, due to receding demand for power.
The alerts were lifted by 3:21 p.m. as supply conditions improved.
This development comes after a period of thin power supply that led to expected rotational brownouts.
The GMEC Coal-Fired Power Plant Unit 2 went offline on Tuesday morning due to a suspected boiler tube leak and was expected back online by June 8, while the Sual Coal-Fired Power Plant Unit 2 returned to the grid by Wednesday afternoon.
The Department of the Interior and Local Government (DILG) had previously reminded local government units (LGUs) to secure uninterruptible power supply for COVID-19 vaccine cold storage facilities.
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The Luzon grid was placed on yellow alert on Wednesday, June 2, 2021, from 8 a.m. to 9 a.m., 5 p.m. to 6 p.m., and 11 p.m. to 12 a.m., indicating thin reserves.
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The Department of Energy (DOE) warned that the Luzon grid might experience red alerts until June 10 due to insufficient power reserves.
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The Luzon power grid has returned to a normal system condition as of Thursday, June 3, 2021, with the Department of Energy (DOE) expecting no further rotating brownouts.
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The National Grid Corp. of the Philippines (NGCP) may implement rotational brownouts in parts of Luzon and Metro Manila on June 2, 2021, due to thin power reserves.
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The National Grid Corp. of the Philippines (NGCP) implemented rotational power interruptions in Meralco's franchise area on June 1, 2021, due to a thin power supply from the Luzon grid.
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