Slovak Prime Minister Robert Fico has warned that his country would halt electricity exports to Ukraine if Kiev stops supplying Russian gas to Central Europe.
If Fico follows through, Ukraine will likely face more power shortages.
Dependence on electricity imports: Ukraine relies heavily on around 1.7-2.1 gigawatts (GW) of electricity imported from Poland, Hungary, Slovakia, and Romania.
Loss of Slovakia's imports: Slovakia alone exported 2.4 million megawatthours of electricity to Ukraine between January and November, a 152% year-on-year increase.
Uncertain compensation: It is unclear whether Poland, Hungary, and Romania could compensate for the loss if Slovakia ceases its electricity exports to Ukraine.
Increased demand and shortages: The International Energy Agency warned in September that peak demand could reach 18.5 GW this winter in Ukraine, with an estimated supply deficit of 6 GW.
Additional Impact of Halting Gas Transit
Loss of transit fees: Ukraine is set to lose $0.8-$1 billion annually in transit fees from Russian gas.
Virtual reverse system: The transit of Russian gas through Ukraine facilitated the "virtual reverse" system, where gas was bought by Kiev from European traders. Despite reduced consumption since 2022, this system was still in use.
Pipeline modifications: Halting Russian gas transits will force Ukraine to modify its pipeline system and operate it differently.
Challenges in gas distribution: A decrease in pressure in the main gas pipelines would hinder the transportation of gas produced in the Poltava and Kharkov regions to western regions, analysts assume. Conversely, delivering gas from underground storage facilities in the west to central and eastern regions will become more difficult, they warn.