Vietnam's power transmission system remains secure following typhoon Kajiki

Vietnam’s national power transmission system has remained safe and stable after typhoon Kajiki, the fifth hitting the East Sea this year, thanks to swift and proactive responses from the National Power Transmission Corporation (EVNNPT), a member of state utility Vietnam Electricity (EVN).

The affected transmission lines were promptly restored and re-energized.

Ahead of the storm, EVNNPT deployed two response teams to the projected storm center and issued three emergency dispatches, directing its subsidiaries to urgently implement preparedness and emergency response measures in accordance with guidance from the Ministry of Industry and Trade, EVN, and EVNNPT itself.

The corporation instructed all units to closely monitor weather updates and forecasts, proactively take preventive measures, and fully implement directives posted on the Security Management Information System (SMIS) platform. Non-essential operations were suspended so that resources could be focused on storm response and post-storm recovery efforts.

Information systems used for command and control during natural disasters were kept running continuously and reliably. Communication channels were tested and contingency plans prepared in case of transmission disruptions.

The Power Transmission Companies No. 1 and 2 (PTC1 and PTC2) maintained around-the-clock duty shifts, adjusted according to storm developments. They also developed response scenarios and implemented strict safety protocols to protect personnel, equipment, and assets, especially at substations located within storm-affected zones.

At substations at risk of flooding, specific operating and safety plans were enacted to ensure quick response capabilities. Diesel generators were checked for operational readiness and fuel reserves secured. Backup Alternating Current (AC) and Direct Current (DC) power systems, particularly battery charging and discharging units, were inspected to ensure consistent performance in all conditions.

Vegetation near transmission corridors was trimmed, drainage systems cleared, and erosion-prone areas reinforced. Additional warnings were issued for landslide and flood risks near substations and transmission lines running through mountainous or riverside areas with known vulnerabilities.

Nguyen Sy Thang, head of the Nghe An Power Transmission Team, said that with the central province of Nghe An identified as the storm's epicenter, all precautionary measures were implemented as directed by authorities. “Fortunately, after the storm passed, the power transmission system remained intact, ensuring safe, stable, and continuous electricity transmission,” he noted.

Immediately following the storm, EVNNPT’s leadership requested all units to deploy inspection teams to assess damage. In case of disruption, response teams are to act swiftly following the “four-on-the-spot” principle (on-site command, on-site forces, on-site logistics, and on-site materials) to restore power safely and quickly.

EVNNPT emphasized that the typhoon’s aftermath, particularly its lingering circulation, could bring further heavy rainfall. Units are therefore required to maintain a high level of readiness and continue applying the “four-on-the-spot” approach to ensure the safe and stable operation of the national transmission system.