The Toktogul Hydroelectric Station has an installed capacity of 1,260 MW, which makes it the largest power plant in the country.

Toktogul Reservoir (Kyrgyz: Токтогул суу сактагычы, Kyrgyz pronunciation: [toqtoʁul suː sɑqtɑʁɯtʃɯ]; Russian: Токтогульское водохранилище) is the largest of the reservoirs on the path of the Naryn River, a northern tributary of the Syr Darya.

The reservoir was created in 1976 after construction works on the dam were completed and the Ketmen-Tobo Valley was flooded.

A cold dry winter, combined with water sales to foreign countries as well as increased domestic demand left the reservoir at a fraction of its capacity.

Electrical rationing had to be employed throughout the entire country with outages lasting up to 11 hours every day.