Notification History

Scheduled time period

Friday 10th July 2026 at 8:00am to Wednesday 15th July 2026 at 8:00pm

Planned Tolmount Outage

Planned Tolmount Outage

Unavailable Capacity
3.4mcm/d
Available Capacity
0mcm/d
Technical Capacity
3.4mcm/d
Further Information

Scheduled time period

Friday 10th July 2026 at 8:00am to Friday 17th July 2026 at 8:00pm

Planned Production Outage

Planned Production Outage

Unavailable Capacity
0.8mcm/d
Available Capacity
0mcm/d
Technical Capacity
0.8mcm/d
Further Information

Scheduled time period

Friday 10th July 2026 at 8:00am to Wednesday 15th July 2026 at 8:00pm

Planned Injection Outage

Planned Injection Outage

Unavailable Capacity
11.8mcm/d
Available Capacity
0mcm/d
Technical Capacity
11.8mcm/d
Further Information

Scheduled time period

Thursday 18th June 2026 at 8:00am to Thursday 18th June 2026 at 7:00pm

Additional Unavailability to ATW_905

Planned Outage

Unavailable Capacity
40GWh/d
Available Capacity
30GWh/d
Technical Capacity
130GWh/d
Further Information

Impacted time period

Thursday 18th June 2026 at 9:48am to Thursday 18th June 2026 at 3:30pm

Additional Unavailability to ATW_1227

Failure

Unavailable Capacity
30GWh/d
Available Capacity
0GWh/d
Technical Capacity
130GWh/d
Further Information

Scheduled time period

Tuesday 26th May 2026 at 6:00pm to Thursday 18th June 2026 at 11:15am

Production train 1 outage.

Planned Outage

Unavailable Capacity
66.98GWh/d
Available Capacity
220.8GWh/d
Technical Capacity
287.78GWh/d
Further Information

Impacted time period

Thursday 18th June 2026 at 2:30am to Friday 19th June 2026 at 6:00pm

Injection Unavailability The start time/date of the event identified in this publication is the time/date on which this operational issue first led to a loss of capacity. However, at that point, based on all known circumstances and applying CESL standard assessment criteria, the loss of capacity was not assessed to be material. Circumstances have now changed and CESL has re-assessed the loss of capacity to be as published in this REMIT market message.

Technical Process Issue

Unavailable Capacity
11.8mcm/d
Available Capacity
0mcm/d
Technical Capacity
11.8mcm/d
Further Information

Impacted time period

Wednesday 17th June 2026 at 9:30pm to Friday 19th June 2026 at 6:00pm

Tolmount Unplanned Outage The start time/date of the event identified in this publication is the time/date on which this operational issue first led to a loss of capacity. However, at that point, based on all known circumstances and applying CESL standard assessment criteria, the loss of capacity was not assessed to be material. Circumstances have now changed and CESL has re-assessed the loss of capacity to be as published in this REMIT market message.

Tolmount Unplanned Outage

Unavailable Capacity
3.6mcm/d
Available Capacity
0mcm/d
Technical Capacity
3.6mcm/d
Further Information

Impacted time period

Thursday 18th June 2026 at 9:48am to Thursday 18th June 2026 at 4:00pm

Additional Unavailability to A0001033U.UK-OUT-00001227

Failure

Unavailable Capacity
30GWh/d
Available Capacity
0GWh/d
Technical Capacity
130GWh/d
Further Information

Scheduled time period

Thursday 18th June 2026 at 8:00am to Thursday 18th June 2026 at 4:00pm

Additional Unavailability to ATW_905

Planned Outage

Unavailable Capacity
40GWh/d
Available Capacity
30GWh/d
Technical Capacity
130GWh/d
Further Information

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