Jvari-Khorga Interconnection Project


suraTiJvari-Khorga Interconnection Project includes: 1) Construction of approximately 8 km long double-circuit 500 kV overhead transmission line (OHL) tied-in to 500 kV OHL Kavkasioni as well as approximately 60 km long double circuit 220 kV OHL from Jvari to Khorga tied-in to 220 kV Khorga and 500 kV Jvari substations; and 2) Construction of the new 500/220 kV substation in Jvari, including installation of 500 kV side including two diameters of a breaker-and-a-half configuration, and installation of 220 kV side with two busses, bas coupler, six line bays and one group of three single phase 500/220 kV 167 kVA transformers. The Project goals are as follows: • Improve reliability of 220 kV transmission network and diversify power supply sources in the West Georgia; • Ensure transmission capacities of 450 MW to Poti Free Industrial Zone (“FIZ”), and 350 MW to Turkey; • Ensure full control over transmitted and received power flows through OHL Kavkasioni; • Increase the capabilities for transmitting the electricity generated by the existing Enguri HPP, and Khudoni and other planned HPPs to Akhaltsikhe Substation through 500 kV grid, and the appropriate development of 500 kV grid facilities; • Evacuate the electricity generated by prospective hydropower plants to be constructed in the upper reaches of Enguri River basin; • Increase reliability and stability of the high voltage grid. The project is financed by the Government of Georgia, European Bank for Reconstruction and Development (EBRD), European Union (Neighbourhood Investment Facility/NIF), and German Reconstruction Credit Bank (Kreditanstalt für Wiederaufbau/KfW). Total Project cost is approximately 70 million Euro. The positive outcomes expected from implementation of the Project: 1. Availability of the transmission network in the West Georgia for flexible and profitable energy exchange. 2. Supply of 350-400 MW power to the back-to-back station for transferring therefrom to Turkey. 3. Significant improvement of the quality and reliability of cross-border and local transmission services. 4. Assuming the steady growth of energy demands in Turkey and EU states, identification of the additional hydropower resources has been brought to agenda for allowing Georgia to obtain appropriate niche in power supply of these countries (construction of the new hydropower plants is one of the preconditions for achieving such goal). 5. It should be noted that, due to technical and political reasons, the available output of Enguri HPP is insufficient for supplying the West Georgia and Poti FIZ. Construction of the new substation and outgoing 220 kV OHLs is one of the major necessary components for resolving this problem. 6. Implementation of the Project shall support to attracting the investors towards investing in the greenfield hydropower plants planned in the Enguri Valley.