Govt releases review report on CLP Power Supply Reliability

The Electrical and Mechanical Services Department published a comprehensive review on Tuesday, analyzing CLP Power's interruption and voltage dip incidents from 2021 to mid-2024, proposing 43 recommendations across five objectives to boost system stability.

Supervised by a steering committee of local experts, the review examined causes of disruptions and outlined 11 strategies to reduce occurrences and impacts.

The Environment and Ecology Bureau will oversee CLP's implementation, emphasizing a proactive maintenance culture.

CLP began enhancements earlier, including the Grid-V intelligent system for risk detection, extra lightning protection, and flood barriers at key substations.

Large-scale outages affecting over 2,000 households halved in 2025 compared to the prior year, with the system holding steady during Super Typhoon Ragasa and Typhoon Wipha under No. 10 signals.

A December 18, 2025, Kowloon City outage saw over 70 percent restoration in four minutes via interconnectors and remote operations, validating recommendations for more urban network links. 

Teams arrived on-site within 22 minutes per new pledge.

The report's objectives focus on cutting incidents through digitized maintenance, high-risk cable tests, better coordination with excavators, and upgraded lighting systems; mitigating customer effects via more interconnectors, joint drills with public providers, and property managers; speeding restoration with optimized workflows and flexible generators; adopting technologies like expanded Grid-V, AI cameras for site monitoring, and smart meter analytics; and fostering a proactive culture through independent testing and stronger contractor communication.

CLP submitted an action timetable to ensure systematic rollout. 

The full report is available on the EMSD website.