The cause of the massive blackout in Central Asia has been identified.

The cause of the massive power outage in Central Asia has been revealed.
Uzbekistan, Tashkent – Podrobno.uz.
The massive power outage that occurred on August 14 in Central Asian countries was caused by the failure of two hydroelectric generators at the Toktogul Hydroelectric Power Plant (HPP) in Kyrgyzstan.
According to Kazakhstan's KEGOC, the incident at the Toktogul HPP caused an overload of the North-East-South transit line within Kazakhstan's unified power grid. This led to the separation of the Southern Zone from the main Kazakhstan grid and from the unified Central Asian power grid, which includes Kyrgyzstan, Uzbekistan, and Tajikistan. As a result, power outages occurred in four countries in the region.
In Kazakhstan, the outages affected the Almaty, Zhambyl, Turkestan, Kyzylorda, and Karaganda regions, as well as the Zhetysu, Abay, and Ulytau districts. Power was fully restored in the afternoon. In Uzbekistan, a power outage in the neighboring country also caused disruptions to the unified grid, and power is being restored in stages. Power outages were also reported in Bishkek and other regions of Kyrgyzstan, as well as in Dushanbe and other towns in Tajikistan.
A special commission will investigate the causes of this technical failure. Earlier, the Ministry of Energy of Uzbekistan apologized to consumers for the inconvenience and reported that specialists are continuing to work to eliminate the consequences of the outage.

