Nenskra hydroelectric project, Georgia
Name and Location
Nenskra hydroelectric project, Georgia.
Client
JSC Nenskra Hydro, comprising the Korea Water Resources Corporation and the Georgia government.
Project Description
Nenskra will have an installed capacity of 280 MW. Power will be distributed through a 220 kV transmission line to Akhari-Jvari substation.
The project will comprise a main dam, a weir on the Nakra river, a transfer tunnel, a headrace tunnel to the powerhouse and the actual open-air powerhouse with four vertical-axis Pelton turbines.
The weir on the Nakra river will be 9 m high and 50 m long at its crest; the associated transfer tunnel – 14.4 km long and 3.5 m in diameter – will convey Nakra river’s water to the new reservoir, optimising the project’s performance.
The headrace tunnel will be 15.6 km long and 4.5 m in diameter. The dam, an asphalt face rockfill dam, will be 135 m high and 820 m long at its crest, with a capacity of 183-million cubic metres of water.
Value
The contract is valued at $575-million.
Duration
Construction started in September 2015 and will take about 62 months to complete.
Latest Developments
None stated.
Key Contracts and Suppliers
Salini Impregilo (construction contract).
On Budget and on Time?
Too early to state.
Contact Details for Project Information
Salini Impregilo, email info@salini-impregilo.com.
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