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Learn more about Nenskra Hydropower Plant Project

Enhancing Georgia's energy security

Generated electricity will be fully consumed by the local market

Being environmentally sound is our priority

The project is carried out correspondence to the highest standards

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Learn more about Nenskra Hydropower Plant Project

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Enhancing Georgia's energy security

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Nenskra Hydropower Plant - strengthening Georgia’s energy independence

Nenskra Hydropower Plant Project comprises construction of Nenskra Hydropower Plant (HPP) – the largest strategic hydropower plant in the history of independent Georgia.
The project is to be developed by JSC Nenskra Hydro, founded in 2015 as an outcome of cooperation between K-Water, Korea Water Resource Corporation (investor), and JSC Partnership fund.
Nenskra HPP with 280 MW of installed capacity will annually provide Georgia with total energy generation of 1'200.00 GWh which will be fully consumed by the local energy market.
Today Georgia experiences a deficit in electricity supplies in winter, particularly in the period of November-January due to less water available from rivers and increased internal energy consumption. In addition, the percentage of imported electricity increases year after year. Given these conditions, the implementation of the project is of utmost importance for our country; Nenskra HPP construction serves the purpose of eliminating the current energy shortage. In particular, the electricity generated by HPP will guarantee the energy supply needed during the autum-winter season. This will allow Georgia to substantially reduce the imported energy and related expenses, and improve the economy of the region and the country as well.
The execution of the project will significantly contribute to the importance of Svaneti region, its prosperity and socio-economic development from the perspective of all the country. These processes will positively impact the life standard of the local population. Given the involvement of the international expert team, the environmental impact of Nenskra hydro power plant will be reduced to the minimum.
Nenskra Hydro project is being implemented based on BOT (Build-Operate-Transfer) model stipulating for transfer of ownership to Georgia 36 years after the HPP is commissioned.
The project is planned to be completed in 2021, however the HPP will start producing the electricity in 2020.
Nenskra Hydro project is a very important step towards the successful future of Georgia and will allow Georgia and its population an opportunity to strengthen energy safety and security, and improve the economy of the country.

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Technical Brief

General Layout

Nenskra Hydropower Project comprises construction of Hydro Power Plant with 280 MW of installed capacity on Nenskra river in the Svaneti region of North-West Georgia. Nenskra HPP will annually provide Georgia with total energy generation of 1'200.00 GWh which will be fully consumed by the local energy market.
The main project components are expected to comprise a 130 m high dam on Nenskra river creating a live storage of about 176 million m³. Thus, Nenskra HPP will substantially cover winter-driven energy shortage of Georgia. The dam will capture the flows of Nenskra river and the adjacent Nakra river exploiting the available head of 725 m.

Nenskra Dam and Nakra Weir

The Nenskra dam is 125 m high and 870 long asphalt face rock fill dam on the upper Nenskra River creating a live storage of about 176 million m³ and a reservoir area at full supply level of 2.67 km². An 85 m deep and 545 m long cut-off wall will be constructed to avoid seepage, as well as 850 m long tunnel type spillway, with enough capacity to withstand the probable maximum flood coming from upstream of the dam. The dam will capture the flows of Nenskra river and the adjacent Nakra river exploiting the maximum available head of 725 m. The weir on Nakra river will be 8.7 m high and 44 m long. It will divert the Nakra water currents through the transfer tunnel into the Nenskra reservoir.

Tunnels

The Nenskra headrace tunnel follows the left bank of the Nenskra valley and is approximately 15.1 km long. The tunnel connects to the penstock upstream of the power house.
The Nakra transfer tunnel connects Nakra valley with Nenskra valley and is approximately 12.5 km long and will divert water from behind the Nakra weir and into the Nenskra reservoir.

Power House

The power house of Nenskra HPP is planned on the left bank of the Nenskra river. The power unit will be comprised by the HPP powerhouse where turbines and generators are planned to be placed, and near-located Gas Insulated Switchgear station.
The powerhouse will house three vertical Pelton turbines of 93.333 MW capacity each, for a total installed capacity of 280 MW.

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