🔌 Notice of National Grid Corporation of the Philippines Scheduled Power Interruption

📅 Published: June 17, 2025

📆 Date Time/Duration
June 21, 2025
(Saturday)
5:30 AM to 6:00 AM
📍 Affected Areas
• Whole area of Subic (including Alta Vista and P13 Baloy)
• Whole area of Castillejos
• Whole area of San Marcelino
• Whole area of San Antonio
• Whole area of San Narciso
• Whole area of San Felipe
• Whole area of Cabangan
🛠️ Purpose
Shutdown of the 100MVA Transformer 1 at Olongapo SS to facilitate the
replacement of circuit breaker pole column 8B-CB04 (8Z-XF01OLO) due
to the detection of critical corona discharge

 

📅 Published: June 17, 2025

📆 Date Time/Duration
June 23, 2025
(Monday)
12:00 AM to 12:30 AM
📍 Affected Areas
• Whole area of Subic (including Alta Vista and P13 Baloy)
• Whole area of Castillejos
• Whole area of San Marcelino
• Whole area of San Antonio
• Whole area of San Narciso
• Whole area of San Felipe
• Whole area of Cabangan
🛠️ Purpose
Shifting of Olongapo-Cawag 69kV line load to Botolan-Castillejos 69kV line and vice versa