Power Outage in Taichung Coastal Areas; Taipower Initially Cites Insulation Failure Due to Humid Environment
A major power outage occurred in the coastal areas of Taichung City on the afternoon of June 10, affecting approximately 140,000 households. Taipower's preliminary investigation suggests that recent heavy rains led to a humid environment, causing insulation failure in substation equipment. Power was fully restored within 26 minutes.
📋 Article Processing Timeline
- 📰 Published: June 10, 2026 at 19:55
- 🔍 Collected: June 10, 2026 at 20:06 (11 min after Published)
- 🤖 AI Analyzed: June 10, 2026 at 20:06 (0 min after Collected)
(Central News Agency, reporter Xie Yixuan, Taipei, June 10) A power outage occurred in the coastal areas of Taichung City, including Dajia, Shalu, and Qingshui, around 2 PM today. Taipower's preliminary investigation suspects that recent continuous heavy rain led to a humid environment, causing insulation failure in the existing bus potential transformer equipment at a substation, which triggered the outage.
Taichung City experienced heavy rain in the morning, which temporarily subsided in the afternoon. The power outage was reported in the coastal areas at 2:17 PM. Stores in the Jingyi commercial district in Shalu, Donghai Street in Longjing, and Dajia Street went dark, and traffic lights on the roads malfunctioned.
Taipower stated in a press release that during the process of energizing new equipment at 2:17 PM, a fault occurred due to poor insulation of existing equipment, causing a power outage for 141,739 households in the coastal areas of Taichung City, including Qingshui, Shalu, Wuqi, and Dajia. Power was fully restored within 26 minutes after emergency repairs, and Taipower expressed deep regret for the inconvenience caused.
Taipower explained that the preliminary investigation indicates that recent continuous heavy rain created an extremely humid environment, leading to insulation failure in the existing bus potential transformer equipment at the substation, which in turn caused the outage.
Taipower emphasized that before the new equipment energization operation, relevant risk control measures were implemented, including pre-isolating some equipment and planning independent power transmission paths and emergency response measures. Therefore, the incident did not escalate further, and power was fully restored within 26 minutes. Taipower will review and improve its operational procedures in the future, incorporating weather factors into risk control measures before integrating new equipment into the system.
Taipower also mentioned that in response to the increasing load from users in the Taichung area, and to improve power quality and increase power supply capacity in the central region, it is actively carrying out projects such as expanding and replacing extra-high voltage lines and upgrading the capacity of Gas Insulated Switchgear (GIS) at substations before the summer peak season. (Editor: Lin Kelun) 1150610
Taichung City experienced heavy rain in the morning, which temporarily subsided in the afternoon. The power outage was reported in the coastal areas at 2:17 PM. Stores in the Jingyi commercial district in Shalu, Donghai Street in Longjing, and Dajia Street went dark, and traffic lights on the roads malfunctioned.
Taipower stated in a press release that during the process of energizing new equipment at 2:17 PM, a fault occurred due to poor insulation of existing equipment, causing a power outage for 141,739 households in the coastal areas of Taichung City, including Qingshui, Shalu, Wuqi, and Dajia. Power was fully restored within 26 minutes after emergency repairs, and Taipower expressed deep regret for the inconvenience caused.
Taipower explained that the preliminary investigation indicates that recent continuous heavy rain created an extremely humid environment, leading to insulation failure in the existing bus potential transformer equipment at the substation, which in turn caused the outage.
Taipower emphasized that before the new equipment energization operation, relevant risk control measures were implemented, including pre-isolating some equipment and planning independent power transmission paths and emergency response measures. Therefore, the incident did not escalate further, and power was fully restored within 26 minutes. Taipower will review and improve its operational procedures in the future, incorporating weather factors into risk control measures before integrating new equipment into the system.
Taipower also mentioned that in response to the increasing load from users in the Taichung area, and to improve power quality and increase power supply capacity in the central region, it is actively carrying out projects such as expanding and replacing extra-high voltage lines and upgrading the capacity of Gas Insulated Switchgear (GIS) at substations before the summer peak season. (Editor: Lin Kelun) 1150610
FAQ
When did the power outage occur?
It occurred on June 10, 2024, at 2:17 PM.
What caused the power outage?
Taipower suspects insulation failure in substation equipment due to environmental humidity.
How long did it take to restore power?
Power was fully restored for all households in about 26 minutes.