In 2025, domestic gas consumption reached a historic high of 70.2 TWh. 70.3% came from the power generation sector, which recorded a record 49.3 TWh, followed by networks with 13.1 TWh. Industry had the lowest consumption at 7.8 TWh (-13.5% compared to 2024). LNG had the largest share of imports (32.7 TWh), surpassing Russian gas (27.6 TWh). Exports in 2025 (8.6 TWh) tripled compared to those in 2024. More than 90% of exported gas was channeled through the same gate as Russian gas imports (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 (December 2025), as well as Data of N.G. Nominations / Allocations from DESFA’s New Commercial Information System (December 2025). It also uses the latest monthly data published by Eurostat on imports of liquefied natural gas (LNG) imported from Russia (November 2025), and on gas consumption for comparison between the EU-27 Member States (November 2025).
Consumption
December
According to the latest available data from DESFA, total domestic gas consumption in December 2025 increased by 40.2% compared to November, reaching 7.71 TWh. It was the third highest monthly consumption in 2025 after February and January.
All three gas consumption sectors (electricity, industry, and networks) showed an increase in December compared to the previous month. More specifically, the electricity sector ranked first in gas consumption with 5.12 TWh and an increase of 37.2% (+1.4 TWh). This was followed by networks with a demand of 1.8 TWh and an increase of 78.9% (+800 GWh), and lastly industry with a gas consumption of 776 GWh and an increase of 2.9% (+22 GWh) compared to November. For all three sectors, December was one of the top three months of the year in terms of gas consumption.
Compared to December 2024, total domestic gas demand increased by 8.1% (+581 GWh), with the largest percentage increase recorded in the industrial sector (+13.5% or +92 GWh), followed by the electricity sector (+10.8% or +501 GWh). In contrast, gas demand in networks saw a slight decrease compared to December last year (-0.7% or -12 GWh).
2025
In total for the whole of 2025, domestic gas consumption reached 70.2 TWh, up 6% compared to 2024 and reaching a record[1] high. The second highest annual consumption was in 2021 with 69.96 TWh.
The record high domestic gas consumption is mainly due to the power generation sector, which recorded a record1 49.3 TWh in 2025, an increase of 8.5% compared to 2024.
In second place after the electricity sector were networks with 13.06 TWh and the second highest historical consumption for networks after 2021. Compared to 2024, gas use in networks increased by 11.3%.
The industrial sector ranked last in gas consumption with 7.8 TWh and a decrease of 13.5% compared to 2024. The industrial sector had lower consumption every month of 2025 compared to 2024, except for June and December.
In terms of consumption allocation by use, the year ended with electricity maintaining the largest share with 70.3% of total consumption. This was followed by networks with a share of 18.6% and industry with a share of 11.1%.
Exports
Total exports in December 2025 were 1.5 TWh, 11.6% higher than in November and the highest of the year. The largest share of exports was from the Sidirokastro gate with 1.14 TWh, while exports from the IGB (Interconnector Greece Bulgaria) with Komotini as the exit point were 0.36 TWh. Exports from the Nea Mesimvria gate were zero.
In total, fossil gas exports in 2025 reached 8.6 TWh, three times higher than last year (2.91 TWh). The overwhelming majority (90.6% or 7.78 TWh) of exports were from the Sidirokastro gate, while smaller quantities were exported from the IGB and the Komotini gate (9.3% or 0.8 TWh). Gas exports were recorded from the Nea Mesimvria gate only in March, at 0.015 TWh.
Imports
December
Total imports into the National Transmission System, covering just domestic needs, reached 8.07 TWh, the highest1 for the year. Compared to November, gas imports increased by 39.2%.
LNG ranked first in imports with 4.29 TWh, with 3.34 TWh being imported from the Revythousa FSRU (Agia Triada gate) and the remaining 0.95 TWh coming from the Alexandroupolis FSRU (Amfitriti gate). In second place was the Sidirokastro gate (which is the main entry point for Russian gas) with 2.74 TWh. However, compared to November, gas imports through the Sidirokastro gate more than doubled compared to imports through the Agia Triada gate (+68% for Sidirokastro compared to +31.1% for Agia Triada).
The Nea Mesimvria gate (through which Azerbaijani gas is imported via the TAP pipeline) ranked third in terms of imports with 1.04 TWh, an increase of 13.7% compared to November. Imports from the fifth gate at Kipoi remained at zero, as has been the case since January 2024.
2025
Total fossil gas imports covering domestic consumption in 2025 amounted to 71.27 TWh, a record high1. The year with the next highest imports was 2021 with 70.3 TWh, 0.97 TWh less than in 2025. Compared to 2024, total imports increased by 2.1% (+1.47 TWh), mainly due to the large increase in LNG imports from the gate at Agia Triada.
Overall in 2025, LNG imports from the gates at Agia Triada and Amfitriti were the highest at 32.7 TWh and a 45.8% share, while compared to 2024, they increased by 55.3%.
Russian gas imports through the Sidirokastro gate came second with 27.55 TWh and a 38.6% share, while they decreased by 24.8% compared to 2024.
In last place were imports of Azerbaijani gas via TAP and the Nea Mesimvria gate with 11.07 TWh and a 15.5% share, while they decreased by 9% compared to 2024.
Greece’s dependence on Russian gas
On December 3rd 2025, the European Commission agreed to completely ban imports of Russian natural gas in the form of LNG from 1st of January 2027. Greece is already fully compliant with this provision, as Russian LNG imports into the country have remained at zero since November 2024.
However, even though the same EU decision includes a complete ban on imports of Russian gas via pipeline from October 1, 2027[2], Greece continues to import significant quantities of Russian pipeline gas through the Sidirokastro gate.
More specifically, the average monthly imports of Russian gas via Sidirokastro in 2025 were 2.3 TWh, with the lowest levels recorded in March 2025 (1.43 TWh) and the maximum in February 2025 (3.18 TWh).
However, in 8 of the 12 months of 2025, LNG led imports with a monthly average of 2.72 TWh, reversing the trend of the period June 2023-October 2024, when Russian gas was in first place.
Comparison between EU-27 Member States
First eleven months of the year
According to the latest available Eurostat data for the EU-27 Member States[3], Greece ranked 9th worst in terms of change in gas consumption between 2024 and 2025 for the period January – November. More specifically, Greece increased its gas consumption by 5.12%, four times the EU-27 average (1.19%). However, Greece’s position for this period is an improvement compared to the period January-October (where it was in 6th place), and compared to Hungary and Spain, which until recently were in a better position.
Of the remaining Member States, 11 reduced their consumption, led by Finland, Sweden, and France (-17.8%, -16.5%, and -13.5%, respectively), while 14 countries increased their consumption, with Austria and Portugal in the worst positions (+11.3% and +13.05%, respectively).
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] EU agrees to permanently stop Russian gas imports and phase out Russian oil
[3] Cyprus is not included in the analysis as it has zero gas consumption.
