Georgia’s energy infrastructure is shaped by its position between the Caspian Sea, the Black Sea, Russia, Türkiye and Armenia. The country is not a major producer of oil or natural gas, but it occupies an important place in the regional movement of electricity and hydrocarbons. Its power system also has a distinctive seasonal problem: Georgia generates large volumes of hydropower when rivers are strongest, yet demand can exceed domestic production during colder and drier periods.
This combination makes infrastructure central to Georgia’s energy security. Transmission lines must move electricity from western hydropower regions toward the main centres of demand. Cross-border links must support imports, exports and regional transit. Gas and oil pipelines carry resources from Azerbaijan toward Türkiye and international markets. Longer-term plans for a submarine electricity cable across the Black Sea could move Georgia from a regional transit market toward direct energy integration with southeastern Europe.
Hydropower Creates Both Strength and Seasonal Pressure
Hydropower is the foundation of Georgia’s electricity system. Mountainous terrain, major rivers and significant elevation changes have supported the development of large and small hydroelectric plants across the country. This gives Georgia access to a domestic, renewable source of electricity and reduces the need to rely entirely on imported fuels.
However, hydropower output changes with water conditions. Generation is normally strongest during the spring and summer, while electricity demand rises during winter. Reservoir plants can provide some flexibility, but much of the system remains exposed to river flows and seasonal conditions. Lower hydropower production can quickly increase the need for thermal generation or electricity imports.
Georgia therefore needs more than additional generating capacity. It needs stronger transmission, flexible generation, improved storage and better regional trading arrangements. Wind and solar projects could help diversify production, although they would also require grid upgrades, balancing capacity and more advanced system management.
Thermal power plants near Gardabani provide an important security function when hydropower is insufficient. These plants rely mainly on imported natural gas, connecting electricity security to Georgia’s gas supply relationship with Azerbaijan. The result is a power system in which domestic renewable resources and imported fossil fuels remain closely linked.
The Transmission Backbone Must Connect East and West
A large share of Georgia’s hydropower potential is located in the west and northwest, while Tbilisi, Rustavi and other important demand centres are in the east. The transmission network must therefore move electricity across difficult terrain and maintain reliable service over long distances.
Georgian State Electrosystem operates the national transmission system and dispatch centre. The high-voltage network includes 500-kilovolt and 220-kilovolt lines, major substations and lower-voltage connections serving regional distribution systems. Projects around Jvari, Khorga, Tskaltubo, Akhaltsikhe, Ksani and Gardabani have been designed to reinforce the west-east backbone, reduce bottlenecks and improve the connection of new generating plants.
The Jvari substation and related transmission lines have strengthened western Georgia’s ability to transfer hydropower toward central and eastern regions. The Jvari–Tskaltubo connection adds another important part of the 500-kilovolt network, while projects in Kakheti and other regions are intended to improve reliability outside the main transmission corridor.
Mountainous geography raises construction and maintenance costs. Landslides, heavy snow, flooding and difficult access can affect lines and substations. New infrastructure therefore needs to provide additional routes rather than relying on a small number of critical corridors. Modern control systems, improved telecommunications and wide-area monitoring are also important for identifying disturbances before they spread through the network.
Cross-Border Connections Give Georgia a Regional Role
Georgia has electricity connections with Russia, Azerbaijan, Armenia and Türkiye. These links allow the country to import power when domestic generation is insufficient and export seasonal surpluses when hydropower output is high. They also support electricity transit between neighbouring systems.
The Black Sea Transmission Network significantly expanded Georgia’s connection with Türkiye. Its infrastructure includes the Akhaltsikhe substation, a high-voltage direct-current back-to-back station and a 400-kilovolt transmission line toward the Turkish border. The arrangement allows electricity to move between systems that do not operate synchronously.
Connections with Russia and Azerbaijan provide additional balancing options, while links with Armenia support bilateral trade and possible regional transit. The practical value of these interconnections depends on available generation, network capacity, market rules and commercial demand in neighbouring countries.
Georgia has historically managed much of its cross-border trade through bilateral contracts and regulated arrangements. A more competitive day-ahead and balancing market could improve the use of transmission capacity, create clearer price signals and make it easier to integrate variable renewable generation. Market reform has moved more slowly than some physical infrastructure projects, leaving the country with stronger regional connections than market integration.
Caspian Pipelines Form a Second Energy Network
Electricity infrastructure is only one part of Georgia’s regional importance. The country also hosts major oil and natural gas pipelines connecting Caspian production with the Black Sea and Mediterranean markets.
The Baku–Tbilisi–Ceyhan pipeline carries crude oil from Azerbaijan through Georgia to the Turkish Mediterranean coast. It bypasses both Russia and the congested Turkish Straits, giving Caspian producers a direct route to international oil markets. The Western Route Export Pipeline follows a separate route to the Supsa terminal on Georgia’s Black Sea coast.
The South Caucasus Pipeline transports natural gas from Azerbaijan’s Shah Deniz field through Georgia to Türkiye. It runs through much of the same corridor as the Baku–Tbilisi–Ceyhan pipeline and forms the eastern section of the wider Southern Gas Corridor. Georgia receives gas under transit and supply arrangements, making the pipeline important to both domestic consumption and regional energy trade.
This infrastructure gives Georgia strategic value beyond the size of its domestic market. It also creates responsibilities involving physical security, environmental protection, maintenance and emergency planning. Pipeline disruptions could affect Georgian supply while also interrupting exports moving between the Caspian region and Türkiye.
The Black Sea Cable Could Redefine Georgia’s Energy Position
The proposed Black Sea Submarine Cable is the most ambitious element of Georgia’s future energy infrastructure. The concept would create electricity and fibre-optic connections across the Black Sea, with landing points in Georgia and Romania. It is intended to connect the South Caucasus more directly with southeastern Europe and the wider European electricity market.
For Georgia, the project could create a larger destination for renewable electricity. Hydropower, wind and solar projects that might be too large for domestic demand could become more commercially attractive if developers had access to European markets. Azerbaijan and other regional producers could also use Georgia as part of a wider green electricity corridor.
The cable remains a development project rather than operating infrastructure. Preparatory work includes seabed surveys, technical design, environmental assessment, commercial planning and decisions on cost allocation. A joint company has been established for the pre-investment stage, but major construction decisions and financing arrangements still have to be completed.
Georgia would also need substantial onshore investment. Electricity arriving from generating plants across the South Caucasus must be gathered, balanced and transported to the Black Sea landing point. New transmission capacity, substations and system-control equipment would be necessary before the cable could operate at its intended scale.
The project’s importance should therefore not be measured only by the submarine cable. Its success would depend on the development of an entire regional electricity system behind it.
Reliability Will Depend on Reform as Well as Construction
Georgia’s immediate infrastructure priorities are more practical than its largest international ambitions. The country needs to reinforce domestic transmission routes, modernise substations, improve distribution reliability and connect new generation without creating unstable local networks. It also needs enough flexible supply to manage winter shortages and changes in hydropower output.
Electricity market reform is part of this infrastructure challenge. Physical connections are more valuable when producers, suppliers and traders can use them through transparent market rules. Delays in full wholesale-market opening and alignment with European electricity rules could limit the commercial benefits of new interconnections.
Storage will become increasingly important as Georgia adds wind and solar capacity. Reservoir hydropower can provide part of this flexibility, while batteries and possible pumped-storage projects could support shorter-term balancing. Better demand forecasting and digital network management would also reduce the need to build conventional backup capacity for every possible shortage.
Georgia already possesses the basic elements of a regional energy corridor: high-voltage connections, hydropower resources and internationally important oil and gas pipelines. The next stage is to turn those separate assets into a more integrated system. Domestic reinforcement, credible market reform and careful preparation of the Black Sea connection will determine whether Georgia remains mainly a transit route or becomes a larger electricity trading and renewable-energy hub.