Domestic gas consumption reached a quarterly high in October 2025 (5.7 TWh), with Russian gas accounting for the largest share of imports for the same month (2.43 TWh). Overall, the first 10 months of 2025 saw gas demand reach record highs in power generation (40.5 TWh) and in networks (10.2 TWh). LNG ranked first in imports with 25.1 TWh (+80.6% compared to 2024), closely followed by Russian gas via Sidirokastro (23.2 TWh). Total exports for the 10-month period amounted to 5.74 TWh, with the largest share (97%) being exported via Sidirokastro.
This analysis concerns domestic consumption, imports, and exports of fossil gas. It is based on the latest available data from DESFA on Validated Daily Natural Gas Deliveries / Off-takes (October 2025), as well as Historical Data of N.G. Nominations / Allocations (October 2025). It also uses the latest monthly data published by Eurostat on imports of liquefied natural gas (LNG) imported from Russia (September 2025), and on gas consumption for comparison between the EU-27 Member States (September 2025).
Consumption
October
According to the latest available data from DESFA, total domestic gas consumption in October 2025 was 5.7 TWh, which is the highest consumption in the last four years for the month of October, and a quarterly high.
The power sector accounted for 71% of total consumption with 4 TWh, a 6.6% increase compared to September. This was followed by the industrial sector with 841 GWh and the largest percentage increase compared to the previous month (37.4%). Networks ranked last with 808 GWh, but with a significant percentage increase of 31.6% compared to September.
Compared to October 2024, total domestic gas consumption increased by 19.6% (+928 GWh). Demand in the power sector and in networks increased by 26.3% (+853 GWh) and 30.1% (187 GWh) respectively, while demand in industry decreased by 10% (-93 GWh).
First ten months of the year
Cumulatively, in the first ten months of 2025, total domestic gas consumption reached 57 TWh, up 8.7% compared to the same period in 2024 and the second highest level on record[1] since 2021.
The power generation sector ranked first in consumption with 40.5 TWh, a historic high, while compared to the same period in 2024, gas demand for electricity generation increased by 11.5% (+4.2 TWh).
In second place came the networks with 10.2 TWh and an increase of 18.9% (+1.63 TWh) compared to last year, which corresponds to a historic high for the ten-month period. In last place was the industrial sector with 6.3 TWh, down 16.1% (-1.2 TWh) compared to the same period in 2024.
Regarding the breakdown of consumption by use, electricity retains the largest share of 71% of total consumption for the first ten months of 2025. This is followed by networks with a share of 18%, and finally, industry with 11% of consumption.
Exports
Total exports in October 2025 were 0.69 TWh. Exports from the IGB (Interconnector Greece Bulgaria) exiting at Komotini and exports from Nea Mesimvria were zero, therefore all exports were from Sidirokastro gate.
Cumulatively in the first ten months of 2025, fossil gas exports reached 5.74 TWh. The overwhelming majority (97%, 5.6 TWh) were made from the Sidirokastro gate, where Russian gas is imported, while much smaller quantities were exported from the gate at Komotini (0.16 TWh) and from the Nea Mesimvria gate (0.02 TWh).
Imports
October
Total imports into the National Transmission System, covering just domestic needs, reached 5.7 TWh in October 2025, a four-month high, and up 13.7% compared to September.
The largest contribution to this increase came from LNG imports via the Agia Triada[2] gate, which reached 2.31 TWh, up 42% compared to last month. However, Russian gas via pipeline from the Sidirokastro gate remained in first place for the second consecutive month with 2.43 TWh, a slight decrease (3%) compared to September.
Azeri gas from TAP imported via the Nea Mesimvria entry point remains in third place with 0.94 TWh, showing an increase of 9.8% compared to September.
LNG imports from the Amfitriti[3] entry point, which has been in the process of restarting since mid-August, were zero[4]. Imports from the fifth entry point at Kipoi also remained zero, as has been the case since January 2024.
First ten months of the year
Total fossil gas imports in the first ten months of 2025 amounted to 57.4 TWh and were the second highest on record for this period2 after 2021. Compared to the first ten months of 2024, total imports increased by 3.5% (+1.9 TWh), mainly due to a large increase in LNG imports, which more than covered the decrease in Russian gas imports via Sidirokastro.
In this period, Russian gas imports and LNG imports were very close in terms of volume. However, LNG from the entry points of Agia Triada and Amfitriti ranked first with a share of 43.7% (25.1 TWh), an increase of 80.6% (+10.7 TWh) compared to the first ten months of 2024.
Imports of Russian gas from the Sidirokastro gate came second, with a 40.4% share and total imports of 23.2 TWh over ten months, down 17.8% (-5 TWh) compared to the same period in 2024.
In last place was the Nea Mesimvria gate with a 15.9% share (9.1 TWh). Azeri gas imports via the TAP pipeline and the Nea Mesimvria gate have decreased by 10.6% (-1.1 TWh) compared to the same period in 2024.
Greece’s dependence on Russian gas
Fossil gas from Russia is imported into Greece in two different forms, either as gas through the Turkstream pipeline from Sidirokastro gate or in the form of liquefied natural gas (LNG). In early May 2025, the European Commission announced a plan to completely ban imports of Russian fossil fuels[5]. The plan aims to ban gas imports through new contracts and existing spot contracts[6] by the end of 2025, and a complete ban on gas imports through long-term contracts by the end of 2027.
However, in October 2025, for the second consecutive month, Russian gas imports to Greece via pipeline were in top import position with 2.43 TWh, despite a slight decrease (3%) compared to September. It is also noted that Russian gas (pipeline and LNG) was the first source of gas imports to Greece from June 2023 until October 2024, while since November 2024, Russian LNG imports to Greece have been zero.
Comparison between EU-27 Member States
According to the latest available Eurostat data for the EU-27 Member States[7], Greece ranked fifth worst, as it increased its gas consumption between 2024 and 2025 for the nine-month period from January to September by 7.2%, more than double the EU-27 average (3.2%). Of the remaining Member States, nine reduced their consumption led by Finland, Sweden and Estonia (-18.9%, -17.8% and -13.2% respectively), while 16 countries increased their consumption, with Austria, Poland and Croatia in worst positions (+13.7%, +12.7%, and +10.4% respectively). It is noteworthy that the same countries consistently appear among the worst and best performers among Member States for 2025.
Read here the analyses of the previous months since the start of the EU reduction measures in August 2022.
[1] Since 2008, when published data have been available in DESFA’s reports
[2] FSRU Revithousa
[3] FSRU Alexandroupolis
[4] Following an announcement by Gastrade, the terminal resumed operations on 11th August 2025 and at 75% of full capacity from 1st October 2025. https://www.gastrade.gr/2025/08/11/epanenarksi-ypiresion-ekfortosis-kai-aeriopoiisis/
[5] EU to fully end its dependency on Russian energy
[6] Spot gas contracts refer to physical delivery contracts for short-term products (in the day-ahead or intraday markets)
[7] Cyprus is not included in the analysis as it has zero gas consumption.
