Georgian State Electrosystem (GSE) has completed procurement for a 250 MW battery energy storage system, according to the Ministry of Economy and Sustainable Development.
The Ministry said the project is being implemented with support from the Asian Development Bank (ADB). Construction is expected to begin in 2026 and be completed in 2029.
It is a significant step for a power system that is preparing to integrate more wind and solar generation while maintaining stable and secure operation.
From procurement to implementation
The announcement was made by Economy Minister Mariam Kvrivishvili during an Energy Workers’ Day event on 17 September.
She said the battery storage system would support the stable and secure operation of Georgia’s electricity system, while expanding the limits for renewable-energy integration.
For Georgia, grid-scale batteries are not mainly about storing rooftop solar electricity for use later in the day. Their immediate role is likely to be system flexibility: responding rapidly to changes in generation or demand, supporting frequency stability and helping the transmission system manage a larger share of variable renewable electricity.
The planned Ksani battery-storage system
Public ADB project documents for Georgia’s Energy Storage and Green Hydrogen Development Project describe a planned battery energy storage system at GSE’s Ksani substation near Tbilisi. The original project documentation refers to a 200 MW / 200 MWh system connected to the transmission network at Ksani.
The project is intended to improve energy security, support the integration of renewable generation and reduce Georgia’s reliance on grid-stability support from neighbouring systems.
The Economy Ministry’s latest announcement states that procurement of a 250 MW battery-storage system, supported by ADB, has been completed. It does not identify the project site, the energy-storage capacity in megawatt-hours, the contractor or the contract value.
GSE’s current Ten-Year Network Development Plan lists a battery storage project at Ksani using the notation “200/250 MW” and “200/275 MWh”. The plan does not explain whether these figures represent alternative configurations, stages of development or a revised final specification.
The available public sources therefore point to Ksani as the planned ADB-supported grid-scale battery project, while the final awarded configuration has not yet been set out in one clear public document.
Why storage matters now
Georgia’s electricity system has long relied on hydropower, whose output changes seasonally. At the same time, the country is seeking to add more wind and solar capacity, which requires the system to respond more quickly to changing weather and generation patterns.
A large battery system can provide fast technical support during disturbances, help manage short-term imbalances and give grid operators more flexibility as new renewable projects connect to the network.
The project therefore represents more than a single infrastructure investment. It is also an early practical test of how large-scale electricity storage could operate within Georgia’s transmission system and support the next stage of the country’s energy transition.
What comes next
With procurement completed, attention will turn to the construction schedule, the final technical configuration and the system services the facility will provide once operational.
The Ministry expects works to start in 2026 and finish in 2029.
Source note: Statement by Georgia’s Ministry of Economy and Sustainable Development, 17 September 2026; public project documentation from the Asian Development Bank, Georgian State Electrosystem and Georgia’s Legislative Herald.