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GIE AGSI+
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GIE AGSI+

Brussels trade body for EU gas infrastructure operators; runs the AGSI+ daily storage-transparency platform.

GIE's Brussels-based AGSI+ platform has published daily EU gas storage data throughout the 2026 refill season, and by 21 July 2026 its feed remained the sole reference regulators and traders use to track progress toward winter's 80% fill floor.

Last refreshed: 23 July 2026 · Appears in 1 active topic

Key Question

Germany has flipped to commercial injection for the first time, has the 2026 refill quality finally changed?

Timeline for GIE AGSI+

#29 21 Jul

Recorded the German injection collapse

European Energy Markets: German caverns quit the prompt-gas bid
#28 19 Jul

Mentioned in: German gas plants priced out of merit

European Energy Markets
#27 14 Jul

Published daily storage figures for Germany and France

European Energy Markets: Storage still fills, but the margin thins
#26 11 Jul

Recorded German storage at 43.94% and French storage at 51.14% on 11 July

European Energy Markets: Storage and Norway absorb the gas shock
#24 4 Jul

Recorded EU storage crossing 50% on the gas day to 5 July

European Energy Markets: EU storage tops 50%, still behind 2025
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Background

Gas Infrastructure Europe (GIE), the Brussels trade association for EU pipeline, storage and LNG-terminal operators, runs AGSI+ as the sector's single published record of gas-in-storage. The platform aggregates daily injection, withdrawal and fill-level submissions from storage operators across 28 European countries into one comparable dataset, the figure European Commission officials, ENTSOG and wholesale gas traders check before any other storage number.

The platform's readings carry regulatory weight beyond market-watching: they are the basis on which Brussels tracks member states against the EU's mandatory winter storage-fill target, a threshold the Commission has adjusted mid-season when AGSI+ data showed the bloc off pace. Because national mandates in the Netherlands, France, Italy and Germany feed directly into the aggregate AGSI+ publishes, the platform functions as the audit trail for whether those mandates are working, not merely a price indicator.

As an association rather than an operator, GIE also represents its members in EU network-code and storage-access debates, but AGSI+'s daily print is its most visible output: a transparency dataset that markets have adopted wholesale as their pace signal for the run to the November fill deadline.

Common Questions

Reference

What is Gas Infrastructure Europe and what does it do?
Gas Infrastructure Europe (GIE) is the Brussels-based trade association for European gas transmission system operators, storage operators, and LNG terminal operators. It runs the AGSI+ platform, which publishes daily EU gas storage injection, withdrawal, and fill-level data used in Commission regulations and wholesale market pricing.Source: GIE / AGSI+ official
What is the AGSI+ platform and how does it track EU gas storage?
AGSI+ (Aggregated Gas Storage Inventory) is published daily by Gas Infrastructure Europe, a Brussels-based trade association covering 28 European countries. It is the source of record for EU gas storage injection, withdrawal, and fill-level data used in Commission regulations and ENTSOG seasonal outlooks.
Why did EU gas storage refill slow down in mid-July 2026?
On 14 July German net injection decelerated 23% to 424.5 GWh from 549.5 GWh a day earlier (44.65% fill), while French withdrawal climbed to 215.5 GWh from 148.8 GWh even as France kept injecting overall (51.91% fill), narrowing both estates storage margin as summer heat burn worked against the refill.Source: GIE AGSI+
Is European gas storage on track for the 80% winter 2026 target?
At 48.62% fill as of 28 June, the pace has improved but the OIES stress scenario (Hormuz closed through October) is now the working autumn benchmark, making the October top-up window the binding constraint on winter supply security.Source: OIES
How full is EU gas storage as of late June 2026?
EU aggregate fill reached 48.62% on 28 June 2026 after a post-heatwave injection surge of 3,721 GWh/day, clearing the 80%-floor requirement by a 29% margin.Source: GIE AGSI+
Why did Germany start injecting gas commercially in June 2026?
TTF prices falling to the low EUR 40s made commercial storage economics viable for the first time in 2026. Germany's anchor estate pushed 1,207.5 GWh/day into store on 27 June with no state mandate, the first commercially-driven hard injection of the 2026 season.Source: GIE AGSI+
Why is EU gas storage refill running on mandates rather than the market?
The summer-winter TTF forward strip is inverted: summer 2026 gas trades more expensively than winter, removing the commercial profit motive for injection. Only state mandates from Dutch EBN (trebled to 80 TWh), French CRE, and Italian ARERA are sustaining the refill pace. Commercial operators have no incentive to inject at the current forward prices.Source: event 3882
Why is Europe's gas storage so low in 2026?
The 2025-26 winter drew storage to a 28.92% low by 9 April 2026, the weakest since 2018, reflecting high withdrawal rates during the cold season. With the summer-winter TTF strip inverted, commercial operators have no spread incentive to inject rapidly, leaving state mandates to carry the pace.Source: event
Why does EU storage pace matter more than the percentage level?
With 183 days to the 1 November target, a 0.045 pp/day shortfall projects a November landing of 72-73% rather than 80%. The absolute level can look reassuring while the pace runs below the required floor.Source: Lowdown analysis / GIE AGSI+
What storage level does Europe need to reach before winter?
EU regulations previously required 90% storage by 1 November. In April 2026 the Commission reduced this to 80%, with flexibility to 70% in exceptional circumstances, citing the AGSI+ data showing the refill challenge.Source: European Commission
What happened to European gas storage in April 2026?
EU aggregate gas storage hit 28.92% on 9 April 2026, the lowest seasonal reading since 2018. This directly prompted the European Commission to revise the mandatory winter fill target downward from 90% to 80%.Source: entity background
Why is EU gas storage injection pace doubling but still not enough?
The pace doubled to ~0.38 pp/day in late May 2026 because state mandates in the Netherlands, France, and Italy directed injection regardless of price. But 0.38 pp/day is still below the required 0.53 pp/day, and mandate-driven injection is fragile; it collapses if TTF falls below the policy cover threshold.Source: Update 12 event 3636
What was the lowest EU gas storage level recorded in 2026?
AGSI+ recorded EU storage at 28.92% (327 TWh) on 9 April 2026, the lowest seasonal reading since 2018, which directly prompted the European Commission to revise its mandatory fill target from 90% to 80%.Source: Update 1 event
Source Material
Gas Infrastructure EuropeGIE AGSI+ — EU Gas Storage Platform