Naryn River - The Times Of Central Asia

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Toktogul Hydropower Plant

Kyrgyzstan Completes Modernization of Toktogul Hydropower Plant

Kyrgyzstan has completed the full modernization of its largest energy facility, the Toktogul Hydropower Plant (HPP), located on the Naryn River. The upgrade was finalized with the commissioning of the plant’s fourth generating unit on November 18, raising its total capacity from 1,200 MW to 1,440 MW, according to Energy Minister Taalaibek Ibraev. The plant’s first three units were modernized between 2021 and 2024, each increasing in capacity from 300 MW to 360 MW. The fourth and final unit, upgraded between March and November 2025, has now reached the same capacity. Progress at Uch-Kurgan and Kambarata Projects On the same day, the Ministry of Energy launched the second upgraded unit at the Uch-Kurgan HPP, which added 9 MW in capacity. The first unit, previously replaced, also contributed an additional 9 MW. Modernization of the remaining two units is scheduled for 2026. Upon completion, Uch-Kurgan’s total capacity will increase by 36 MW. Kyrgyzstan is also advancing construction of the Kambarata-1 HPP, a strategic regional project being developed in partnership with Kazakhstan and Uzbekistan. Once operational, Kambarata-1 will have a capacity of 1,860 MW and generate 5.6 billion kWh annually. Energy Challenges Ahead Despite the modernization progress, Ibraev has warned of a challenging winter ahead due to critically low water levels in the Toktogul Reservoir. Electricity consumption in 2024 reached 18.3 billion kWh, an increase of 1.1 billion kWh over 2023, forcing Kyrgyzstan to import 3.6 billion kWh from Kazakhstan, Turkmenistan, Uzbekistan, and Russia to cover winter demand.

Kambarata-1

Experts Call for Seismic Study Ahead of Kambarata-1 Hydropower Construction

At a recent parliamentary session, Kanatbek Abdrakhmatov, director of the Institute of Seismology and president of Kyrgyzstan’s National Academy of Sciences, warned that seismic microzonation has not been conducted at the site of the planned Kambarata-1 hydropower plant (HPP), a critical prerequisite for infrastructure projects of this magnitude. Located in western Kyrgyzstan, the Kambarata-1 HPP is a joint venture between Kyrgyzstan, Uzbekistan, and Kazakhstan, with financial support from the World Bank. The facility is expected to have a capacity of 1,860 MW, with a reservoir volume of 4.5 billion cubic meters. The dam is projected to stand 256 meters tall and house four turbines capable of generating over 5.5 billion kWh annually. The total estimated cost of the project is $5-6 billion. The statement has raised alarms over the country’s most ambitious hydroelectric initiative since independence. Abdrakhmatov said scientists had twice appealed to the Ministry of Energy requesting the study, but received no response. He cautioned that the ministry is underestimating the potential seismic risks. “We are about to launch the Kambarata-1 project. It is crucial to understand that seismic microzonation must be carried out before projects of this magnitude begin. Unfortunately, this has not been done,” Abdrakhmatov said. “This raises serious concerns, because if an earthquake occurs, the dam could collapse, which in turn could destroy Kambarata-2 and other hydropower plants downstream on the Naryn River.” He further noted that the dam is planned between two mountain ridges, one significantly higher than the other. Since seismic waves interact differently with varying topographies, a powerful earthquake could cause destabilization and structural damage. Conducting a microzonation study would help mitigate such risks. The Ministry of Energy has dismissed the concerns raised by domestic seismologists, maintaining that the design of the curved gravity dam is safe. According to the ministry, AFRY Switzerland Ltd, the company preparing the project’s feasibility study, engaged international experts to assess the seismic profile of the region. The ministry stated that the expert team conducted an analysis of seismic sources, earthquake history, and regional tectonics using data from the National Institute of Seismology and the Central Asian earthquake catalog. Based on their findings, a curved gravity dam design was proposed to enhance both hydraulic performance and structural resilience. “Following comprehensive studies and numerous expert-level discussions, a seismic hazard assessment of the construction area was provided. The curved gravity dam design proposed for Kambarata-1 is expected to improve both efficiency and resilience,” the ministry reported. Nevertheless, the ministry added that it remains open to further in-depth seismic studies and may still conduct a microzonation survey as recommended by local scientists. “To date, enormous preparatory work has been carried out for Kambarata-1. We are moving toward the start of major construction. However, speculation by some of our seismology experts, who are unfamiliar with the latest reports, is deeply regrettable, it is nothing but slander and sabotage,” the ministry added in a strongly worded statement.

Hydropower

Turkish Company to Build Hydropower Plants in Kyrgyzstan and New Heat and Power Plant for Bishkek

Kyrgyzstan’s Ministry of Energy and Turkish open joint-stock company Orta Asya Investment Holding signed a protocol of intent on February 27 to construct the Kazarman cascade of hydroelectric power plants (HPP) on the Naryn River, with a total capacity of 912 MW. New Hydropower Projects According to the Ministry of Energy, the agreement includes preparations for an investment agreement and a feasibility study for the project. Orta Asya Investment Holding has expressed interest in constructing three hydropower plants in the cascade: Ala-Buga HPP - 600 MW Kara-Bulun-1 HPP - 149 MW Kara-Bulun-2 HPP = 163 MW Together, these HPPs will generate 3.746 billion kWh of electricity annually, significantly contributing to Kyrgyzstan’s growing energy demands. New Heat and Power Plant for Bishkek On the same day, the Ministry of Energy and Orta Asya Investment Holding discussed the construction of a 250 MW natural gas-fired combined heat and power plant (CHPP-2) in Bishkek. The project is estimated to take 2 - 4 years, with a budget of $443 million. Orta Asya Investment Holding has committed to investing approximately 3 billion KGS (about $34 million) in the project. The Ministry and the company have agreed to finalize a feasibility study for Bishkek CHPP-2 within three months and then begin implementation. Once completed, CHPP-2 will: Increase the country’s energy capacity. Ensure stable electricity and heat supply for residents and businesses. Improve Bishkek’s environmental situation by using natural gas, a cleaner energy source. CHPP-2 will be Bishkek’s second power plant, reducing reliance on the city’s aging Thermal Power Plant (TPP). Power Shortage in Bishkek Bishkek, home to over one million residents, currently relies on a single power plant for both electricity and heating. The Bishkek TPP produces approximately 13% of Kyrgyzstan’s total electricity output, with the remainder coming from hydropower plants. The TPP also provides heat and hot water to nearly two-thirds of the capital. However, the aging plant has suffered two major accidents in recent years: January 2018 - A breakdown left the city without heating for three days in freezing temperatures. February 2, 2024 - An explosion seriously injured three people and forced authorities to impose hot water and heating restrictions in some parts of the city. Following the 2024 accident, the government prohibited newly built high-rise residential buildings from connecting to the existing TPP heating system. Once completed, Bishkek CHPP-2 is expected to meet the city’s growing heating needs and reduce the risk of energy shortages.