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European Energy Markets
1JUN

GB exports gas; Hungary clears EUR 123

3 min read
08:52UTC

National Gas flagged GB summer exports to the continent in its 2026 Summer Outlook; Hungary cleared EUR 123.23/MWh day-ahead on Tuesday 12 May, EUR 54 above Spain's same-day print and the series' widest single-market premium.

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Key takeaway

GB exports help the continent; Hungary's EUR 123 print exposes central Europe's structural disconnect from Atlantic LNG.

National Gas, the UK gas transmission system operator, published its 2026 Summer Outlook indicating GB will export gas to the continental European market this summer, with flows broadly in line with 2025. Centrica Rough's seasonal operating mandate expired on Thursday 30 April with no successor arrangement. The export signal sits against the BBL and IUK interconnector capacity reductions flagged earlier : GB exporting during peak EU injection season partially offsets the Norway and LNG deficit on continental markets.

Hungary cleared EUR 123.23/MWh day-ahead on Tuesday 12 May, EUR 54 above Spain's same-day print , the largest single-market premium recorded this series, marking central European price isolation from Atlantic LNG flows. ACER's Opinion 06/2026 recommends granting Hungary and Serbia a Kiskundorozsma-1 interconnector capacity-allocation derogation; the European Commission decision window closes 5 August 2026, with no Commission response in the 12-18 May window. The opinion sits inside the same Hungary regulatory dossier as the CJEU challenge filed 2 February , giving a concrete forward milestone for EU-Hungary gas infrastructure relations.

Deep Analysis

In plain English

Britain is set to export some of its gas to Europe this summer, which helps European storage fill faster. In a separate development, Hungary's electricity prices on 12 May were EUR 54 higher per megawatt-hour than Spain's on the same day. That gap shows how poorly connected Hungary is to the rest of Europe's electricity grid: when it needs power, it can't easily import it from neighbours, so prices spike.

Deep Analysis
Root Causes

Hungary-Austria cross-border electricity interconnection operates below the thermal capacity of the physical line because Mavir and APG have not exhausted available Coordinated Capacity Calculation (CCC) coordination under CACM, meaning administrative and regulatory constraints reduce available capacity below physical limits.

Hungary's gas-fired generation fleet runs on spot gas rather than contracted pipeline gas in the summer period, directly exposing the day-ahead power clearing price to TTF spot moves; at EUR 50/MWh TTF, gas-fired CCGT marginal cost in Hungary sits above EUR 90/MWh at current thermal efficiency.

What could happen next?
  • Meaning

    ACER's Kiskundorozsma-1 capacity allocation derogation recommendation (Opinion 06/2026) addresses the Hungary-Serbia interconnection gap; if the Commission approves it before 5 August, it modestly increases Hungary's interconnection options from the south.

    Short term · Assessed
  • Meaning

    The EUR 54 Hungary-Spain spread will appear in the next ACER monitoring report on market integration; sustained cross-border price differentials above EUR 20/MWh for more than 10% of trading hours trigger a formal ACER market integration review under the Electricity Regulation.

    Short term · Assessed
  • Meaning

    GB summer gas exports via the Interconnector reduce the net LNG import requirement for Continental storage, marginally improving the injection-pace arithmetic at the European aggregate level without affecting the headline AGSI+ daily storage figures directly.

    Short term · Assessed
Sources:ACER·ACER
Mentions:National Grid →Serbia →Norway →Spain →Texas →Austria →Sweden →LNG Prime →BBL →IUK →Hungary →European Commission →ACER →Centrica Rough →Kiskundorozsma-1 →Opinion 06/2026 →
First Reported In

Update #10 · TTF breaks EUR 50; US LNG hits 58% of imports

ACER· 18 May 2026
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Causes and effects
Caused by
Hungary CJEU challenge; Slovakia preparing to join
Hungary's CJEU challenge against the gas ban (ID:3229) runs in parallel with the Kiskundorozsma-1 derogation opinion; both reflect Hungary's posture of formal legal challenge and regulatory accommodation simultaneously.
Occurred 2 Feb 2026
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Eirin field starts; 27.6 mmboe to Gassled
Eirin field started 5 May (ID:3140); Sodir's April production publication (Watch For item) will include Eirin volumes, directly linked to the National Gas summer export signal.
Occurred 5 May 2026
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This Event
GB exports gas; Hungary clears EUR 123
GB exports partially offset the Norway/LNG deficit on the continent; Hungary's price isolation marks central Europe's structural disconnect from Atlantic LNG flows.
Led to
Russian pipeline ban binds in nine days
ACER's derogation opinions confirming Hungary and Slovakia cannot apply EU gas codes without Russian-Turkish cooperation explain their resistance but do not pause the 17 June trade-law deadline.
Occurred 8 Jun 2026
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Different Perspectives
LNG spreads desk
LNG spreads desk
The JKM-TTF arb flipped to a TTF premium of roughly USD 0.6/MMBtu on 15 July, the first time this cycle Europe has outbid Asia, yet no Atlantic cargo has rerouted west. Until a cargo actually moves, the desk reads the Hormuz premium as unconfirmed and the EUR 55 print as vulnerable to a fast reversal.
United States
United States
Washington reimposed a blockade on Iranian ports and a 20% Strait of Hormuz cargo toll on 13 July, driving TTF's 9% two-session rally to EUR 54.995/MWh. The posture is again setting Europe's gas benchmark by sentiment rather than by any confirmed change in cargo flows.
EDF
EDF
EDF slipped the Bugey 3, Golfech 2 and Chooz 2 restarts to 19, 22 and 25 July, pushing all three past the 20 July Bugey heat exemption, after river-cooling limits on the Rhone, Garonne and Meuse forced the cuts. The same thermal ceiling has capped the fleet in every major heatwave since 2003, and this cycle is no exception.
German power desk
German power desk
German day-ahead power climbed from EUR 126 to EUR 156/MWh over 14-16 July as the heat dome held, flipping the clean spark spread positive for the first time since 14 July. Gas-for-power demand is now back in competition with mandate storage injection right as the injection margin itself is thinning.
EU carbon and storage regulators
EU carbon and storage regulators
EUA carbon broke EUR 81/tonne on 13 July as the ETS Market Stability Reserve's scheduled withdrawals met fresh fuel-switching demand from France's nuclear curtailment. Brussels' mandatory storage-fill rule kept German and French injection running regardless of the TTF swings, the mechanism working as designed four years after the 2022 shock.
Equinor
Equinor
Equinor returned its Asgard field from maintenance on 11 July, lifting Gassco's exit nominations to 319.8 mcm/day just as TTF round-tripped on Hormuz risk. The restart gave Norway spare pipeline capacity to help Europe absorb the gas rally without drawing down storage, reinforcing its role as the post-2022 swing supplier.