Domestic gas consumption fell to a yearly low in September, at 4.35 TWh, due to the escalation of gas prices. However, over the first 9 months of the year, domestic consumption remained at high levels, ranking as the third-highest on record at nearly 50 TWh. Over the same period, LNG remained the leading source of imports, at 30.1 TWh, twice the volume of net imports through the Sidirokastro entry point. Exports reached 13.6 TWh in the first 9 months of the year, with the largest share (77.7%) being transported through the Sidirokastro exit point.
This analysis concerns domestic consumption, imports, and exports of fossil gas. It is based on historical data from DESFA on Validated Daily Gas Deliveries / Off-takes (until December 2025), as well as the latest available data of Nominations / Allocations from DESFA’s New Commercial Information System (September 2026). It also uses the latest monthly data published by Eurostat on imports of liquefied fossil gas (LNG) imported from Russia (August 2026).
Consumption
September
In September 2026, domestic gas consumption stood at 4.35 TWh, the lowest level of the year and the lowest September figure since the previous major gas price crisis in 2022, when domestic consumption fell to 3.5 TWh.
The power generation sector, at 3.3 TWh, recorded the third-lowest monthly consumption of the year, after April and May. Consumption was 29% lower than in August; nevertheless, the sector accounted for more than three-quarters of total consumption (76%).
By contrast, consumption in the distribution networks reached 668 GWh (15.4% of the total), increasing both month-on-month (+20.9%) and year-on-year (+8.8%).
Industry once again recorded the lowest level of consumption, at 376.4 GWh (8.6% of the total), showing a modest decline compared with August (-3.9%), but a much sharper decrease compared with September 2025 (-38.5%).
First nine months of the year
Cumulatively, during the first nine months of the year, total domestic gas consumption stood at 49.9 TWh, down 2.7% compared with 2025.
The power generation sector was the largest consumer, at 34.9 TWh, although this represented the third-highest level on record for this period of the year, behind the 2025 record of 36.5 TWh and the corresponding consumption in 2021 (35.4 TWh).
Consumption in the distribution networks increased to 10 TWh, reaching a record high for the first nine months of the year. This was 5.9% higher than in the same period of 2025 and surpassed the previous high of 9.6 TWh recorded in 2022. Among the areas with the highest levels of consumption (around 100 GWh per month), the largest percentage increases were recorded in Thessaloniki, Athens and Oinofyta.
Industry ranked last, with consumption of 5 TWh, down 7.4% compared with the same period of 2025.
In terms of the breakdown of domestic consumption across the three sectors during the first nine months of the year, power generation accounted for 69.9%, distribution networks for 20%, and industry for 10.1%.
Exports
Total fossil gas exports in September 2026 stood at 1.75 TWh, up 4.7% compared with August and the third-highest level of the year, following exports in March and February.
Exports through the Sidirokastro gate accounted for the largest share, at 1 TWh, although they declined by 8% compared with exports through the same entry point in the previous month. The Nea Mesimvria entry point ranked second, with exports of 0.45 TWh, while the Komotini–IGB entry point ranked last, with 0.28 TWh.
Cumulatively, during the first nine months of the year, gas exports reached 13.6 TWh, the highest level in three years. The largest share of exports (77.7%) was transported through the Sidirokastro entry point, amounting to 10.56 TWh. This was followed by the Komotini–IGB entry point, with exports of 1.77 TWh, and finally the Nea Mesimvria entry point, with 1.27 TWh.
Imports
Total net imports[1] into the National Transmission System that covered domestic demand stood at 4.36 TWh in September. LNG marginally retained the top position, at 2.21 TWh, compared with 1.97 TWh of net pipeline gas imports through the Sidirokastro entry point, the main entry point for Russian gas. The Nea Mesimvria entry point, through which Azerbaijani gas is imported via the TAP pipeline, ranked last, at 0.46 TWh. Imports through the Kipoi entry point were zero, as has been the case since January 2024.
Cumulatively, during the first nine months of 2026, total net gas imports amounted to 50 TWh, down 2.7% compared with the same period in 2025.
LNG imports through Agia Triada and Amfitriti ranked first, at 30.1 TWh, reaching a record high for this period of the year and increasing by 32.1% compared with 2025.
Pipeline gas imports through Sidirokastro followed, reaching nearly 15 TWh over the nine-month period. However, they recorded a significant 27.4% decline compared with 2025, reaching a three-year low. Finally, gas imports through Nea Mesimvria stood at 6.7 TWh, down 18% compared with 2025 and also at a three-year low.
Greece’s dependence on Russian gas
Greece has brought Russian LNG imports down to zero since November 2024, meaning it is already aligned with the EU’s subsequent decision to ban imports of Russian gas as of January 1, 2027. However, Russian pipeline gas continues to be imported, with volumes showing significant month-to-month fluctuations. Part of this gas is used for domestic consumption, while the remainder is transported to neighboring countries.
More specifically, during the first nine months of 2026, total imports through the Sidirokastro entry point amounted to 25.5 TWh. However, exports through the same entry point reached 10.6 TWh (41.6% of total imports). As a result, net imports through Sidirokastro stood at nearly 15 TWh, the lowest level for this period of the year since 2023.
Read here the analyses of the previous months since the start of the EU reduction measures in August 2022.
[1] Total net imports are defined as the difference between total imports through all entry points and total exports through all exit points.
