An early-morning failure in Kazakhstan's Unified Power System on September 25 was triggered by a loss of generation in Uzbekistan, the website infohub.kz reports.
According to system operator KEGOC, 1,516 megawatts of generation were lost in Uzbekistan's power system at 05:02. The failure prompted a sharp surge of power from the Unified Power System of Central Asia. The incident caused an unplanned separation of the North–South transit line.
The failure led to temporary restrictions for consumers in Kazakhstan. The total volume of disconnected load in the republic's power system reached 962 megawatts. The company stressed that emergency automation responded as designed.
Specialists managed to stabilize the situation quickly. By 05:43, parallel operation between the southern zone of Kazakhstan's power system and the Unified Power System of Central Asia had been fully restored. The operator ordered all restrictions on consumers lifted.
National company KEGOC serves as the system operator of the country's Unified Power System. Founded in 1996, it manages the National Electric Grid. Its main shareholder is the Samruk-Kazyna fund with an 85% stake, while the remaining 15% of shares trade on the KASE and AIX exchanges.
In the first half of 2026, the company's revenue reached 240.1 billion tenge, up 31.1 percent year on year. Net profit rose 59.4 percent to 54.6 billion tenge. Assets stood at 1.22 trillion tenge at the end of June.
In recent months, Kazakhstan's power system has faced a series of incidents. In mid-August this year, a blackout hit Almaty. Later, on August 25, another failure in KEGOC's networks caused an emergency shutdown of equipment at the Shymkent oil refinery.