Last update at: 2024-04-25T14:30:00+01:00

**Please note that the last update time shown is rounded to the next market interval of 30 minutes

All times are in UTC.

Gas Storage: Historical Outages (https://www.ssehl.co.uk/HALO/)

Filter Options

Date of event:

From date:

To date:

More filtering options (optional)

	Event Status			Type Of Unavailability			Type of Event
	Affected Asset or Unit			Affected Asset or Unit EIC Code

Affected Asset or Unit	Message ID	Event Status	Type Of Unavailability	Type Of Event	Publication Date/Time	Event Start	Event Stop	Unit of Measurement	Unavailable Capacity	Available Capacity	Technical Capacity	Reason Of Unavailability	Remarks	Balancing Zone	Affected Asset or Unit EIC Code	Market Participant	Market Participant Code
< 1 2 3 4 5 >
Aldbrough	ALD_000000000000000000479_006	Dismissed	Planned	Injection unavailability	2024-02-26T12:31:03+00:00	2024-05-12T05:00:00+01:00	2024-05-23T18:00:00+01:00	GWh/d	311.56	0	311.56	Planned Outage	Full Site Outage.	21YGB-UKGASGRIDW	55WALDBOROUGH00H	SSE Hornsea Ltd	A0001033U.UK
Aldbrough	ALD_000000000000000000479_005	Dismissed	Planned	Injection unavailability	2023-11-01T08:19:18+00:00	2024-05-12T05:00:00+01:00	2024-05-26T18:00:00+01:00	GWh/d	311.56	0	311.56	Planned Outage	Full Site Outage.	21YGB-UKGASGRIDW	55WALDBOROUGH00H	SSE Hornsea Ltd	A0001033U.UK
Aldbrough	ALD_000000000000000000479_004	Dismissed	Planned	Injection unavailability	2023-07-25T08:42:49+01:00	2024-05-12T05:00:00+01:00	2024-05-21T18:00:00+01:00	GWh/d	311.56	0	311.56	Planned Outage	Full Site Outage.	21YGB-UKGASGRIDW	55WALDBOROUGH00H	SSE Hornsea Ltd	A0001033U.UK
Aldbrough	ALD_000000000000000000479_003	Dismissed	Planned	Injection unavailability	2020-09-20T09:03:10+01:00	2024-05-12T05:00:00+01:00	2024-05-21T18:00:00+01:00	GWh/d	311.56	0	311.56	Planned Outage	Full Site Outage	21YGB-UKGASGRIDW	55WALDBOROUGH00H	SSE Hornsea Ltd	A0001033U.UK
Aldbrough	ALD_000000000000000000479_002	Dismissed	Planned	Injection unavailability	2020-09-20T08:57:21+01:00	2024-05-12T05:00:00+01:00	2024-05-21T09:00:00+01:00	GWh/d	311.56	0	311.56	Planned Outage	Full Site Outage	21YGB-UKGASGRIDW	55WALDBOROUGH00H	SSE Hornsea Ltd	A0001033U.UK
Aldbrough	ALD_000000000000000000479_001	Dismissed	Planned	Injection unavailability	2020-07-11T16:25:45+01:00	2024-05-12T05:00:00+01:00	2024-05-24T18:00:00+01:00	GWh/d	311.56	0	311.56	Planned Outage	Full Site Outage	21YGB-UKGASGRIDW	55WALDBOROUGH00H	SSE Hornsea Ltd	A0001033U.UK
Aldbrough	ALD_000000000000000000481_004	Active	Planned	Withdrawal unavailability	2024-02-26T12:32:55+00:00	2024-06-08T05:00:00+01:00	2024-06-22T18:00:00+01:00	GWh/d	121.5	220.8	342.3	Planned Outage	Prod Train 1 Outage.	21YGB-UKGASGRIDW	55WALDBOROUGH00H	SSE Hornsea Ltd	A0001033U.UK
Aldbrough	ALD_000000000000000000481_003	Dismissed	Planned	Withdrawal unavailability	2023-11-01T08:59:38+00:00	2024-06-01T05:00:00+01:00	2024-06-18T18:00:00+01:00	GWh/d	121.5	220.8	342.3	Planned Outage	Prod Train 1 Outage.	21YGB-UKGASGRIDW	55WALDBOROUGH00H	SSE Hornsea Ltd	A0001033U.UK
Aldbrough	ALD_000000000000000000481_002	Dismissed	Planned	Withdrawal unavailability	2023-07-06T11:02:26+01:00	2024-05-10T05:00:00+01:00	2024-05-24T18:00:00+01:00	GWh/d	121.5	220.8	342.3	Planned Outage	Prod Train 1 Outage.	21YGB-UKGASGRIDW	55WALDBOROUGH00H	SSE Hornsea Ltd	A0001033U.UK
Aldbrough	ALD_000000000000000000481_001	Dismissed	Planned	Withdrawal unavailability	2020-07-11T16:32:14+01:00	2024-05-10T05:00:00+01:00	2024-05-24T18:00:00+01:00	GWh/d	121.5	220.8	342.3	Planned Outage	Prod Train 1 Outage	21YGB-UKGASGRIDW	55WALDBOROUGH00H	SSE Hornsea Ltd	A0001033U.UK
Aldbrough	ALD_000000000000000000892_002	Inactive	Planned	Injection unavailability	2024-02-14T18:16:49+00:00	2024-02-14T05:00:00+00:00	2024-02-14T18:00:00+00:00	GWh/d	111.02	200.54	311.56	Planned Outage	GC-1 HP BD valve replacement	21YGB-UKGASGRIDW	55WALDBOROUGH00H	SSE Hornsea Ltd	A0001033U.UK
Aldbrough	ALD_000000000000000000892_001	Dismissed	Planned	Injection unavailability	2024-02-13T15:01:09+00:00	2024-02-14T05:00:00+00:00	2024-02-14T18:00:00+00:00	GWh/d	111.02	200.54	311.56	Planned Outage	GC-1 HP BD valve replacement	21YGB-UKGASGRIDW	55WALDBOROUGH00H	SSE Hornsea Ltd	A0001033U.UK
Aldbrough	ALD_000000000000000000890_002	Inactive	Unplanned	Injection unavailability	2024-02-13T12:58:21+00:00	2024-02-13T06:30:00+00:00	2024-02-13T13:00:00+00:00	GWh/d	311.56	0	311.56	Failure	Site Trip	21YGB-UKGASGRIDW	55WALDBOROUGH00H	SSE Hornsea Ltd	A0001033U.UK
Aldbrough	ALD_000000000000000000890_001	Dismissed	Unplanned	Injection unavailability	2024-02-13T06:32:04+00:00	2024-02-13T06:30:00+00:00	2024-02-13T18:00:00+00:00	GWh/d	311.56	0	311.56	Failure	Site Trip	21YGB-UKGASGRIDW	55WALDBOROUGH00H	SSE Hornsea Ltd	A0001033U.UK
Aldbrough	ALD_000000000000000000891_002	Inactive	Unplanned	Withdrawal unavailability	2024-02-13T11:56:38+00:00	2024-02-13T06:30:00+00:00	2024-02-13T11:59:00+00:00	GWh/d	342.3	0	342.3	Failure	Site Trip	21YGB-UKGASGRIDW	55WALDBOROUGH00H	SSE Hornsea Ltd	A0001033U.UK
Aldbrough	ALD_000000000000000000891_001	Dismissed	Unplanned	Withdrawal unavailability	2024-02-13T06:33:25+00:00	2024-02-13T06:30:00+00:00	2024-02-13T18:00:00+00:00	GWh/d	342.3	0	342.3	Failure	Site Trip	21YGB-UKGASGRIDW	55WALDBOROUGH00H	SSE Hornsea Ltd	A0001033U.UK
Aldbrough	ALD_000000000000000000887_002	Dismissed	Planned	Injection unavailability	2024-02-08T03:16:10+00:00	2024-02-08T05:00:00+00:00	2024-02-08T18:00:00+00:00	GWh/d	111.02	200.54	311.56	Planned Outage	GC-2 blow down valve change.	21YGB-UKGASGRIDW	55WALDBOROUGH00H	SSE Hornsea Ltd	A0001033U.UK
Aldbrough	ALD_000000000000000000887_001	Dismissed	Planned	Injection unavailability	2024-02-07T09:56:35+00:00	2024-02-08T05:00:00+00:00	2024-02-08T18:00:00+00:00	GWh/d	111.02	200.54	311.56	Planned Outage	GC-2 blow down valve change.	21YGB-UKGASGRIDW	55WALDBOROUGH00H	SSE Hornsea Ltd	A0001033U.UK
Aldbrough	ALD_000000000000000000884_002	Inactive	Unplanned	Injection unavailability	2024-02-06T16:05:23+00:00	2024-02-06T09:35:00+00:00	2024-02-06T16:05:00+00:00	GWh/d	111.02	200.54	311.56	Failure	Comp 2 outage due to failed cooling fan	21YGB-UKGASGRIDW	55WALDBOROUGH00H	SSE Hornsea Ltd	A0001033U.UK
Aldbrough	ALD_000000000000000000884_001	Dismissed	Unplanned	Injection unavailability	2024-02-06T09:36:58+00:00	2024-02-06T09:35:00+00:00	2024-02-06T18:00:00+00:00	GWh/d	111.02	200.54	311.56	Failure	Comp 2 outage due to failed cooling fan	21YGB-UKGASGRIDW	55WALDBOROUGH00H	SSE Hornsea Ltd	A0001033U.UK
Aldbrough	ALD_000000000000000000795_002	Dismissed	Unplanned	Storage unavailability	2024-02-01T12:36:36+00:00	2024-09-02T05:00:00+01:00	2024-10-11T18:00:00+01:00	TWh	0.4123	2.7498642	3.1621642	Planned Outage	Loss of Ald 3.	21YGB-UKGASGRIDW	55WALDBOROUGH00H	SSE Hornsea Ltd	A0001033U.UK
Aldbrough	ALD_000000000000000000795_001	Dismissed	Unplanned	Storage unavailability	2023-08-21T14:49:04+01:00	2024-09-02T05:00:00+01:00	2024-10-11T18:00:00+01:00	TWh	0.4123	2.7498642	3.1621642	Planned Outage	Loss of Ald 3.	21YGB-UKGASGRIDW	55WALDBOROUGH00H	SSE Hornsea Ltd	A0001033U.UK
Aldbrough	ALD_000000000000000000876_004	Inactive	Unplanned	Withdrawal unavailability	2024-01-13T08:44:07+00:00	2024-01-12T10:08:00+00:00	2024-01-13T08:43:00+00:00	GWh/d	342.3	0	342.3	Failure	Train sequencing faults	21YGB-UKGASGRIDW	55WALDBOROUGH00H	SSE Hornsea Ltd	A0001033U.UK
Aldbrough	ALD_000000000000000000876_003	Dismissed	Unplanned	Withdrawal unavailability	2024-01-12T22:41:08+00:00	2024-01-12T10:08:00+00:00	2024-01-13T12:00:00+00:00	GWh/d	342.3	0	342.3	Failure	Train sequencing faults	21YGB-UKGASGRIDW	55WALDBOROUGH00H	SSE Hornsea Ltd	A0001033U.UK
Aldbrough	ALD_000000000000000000876_002	Dismissed	Unplanned	Withdrawal unavailability	2024-01-12T15:34:48+00:00	2024-01-12T10:08:00+00:00	2024-01-12T23:00:00+00:00	GWh/d	342.3	0	342.3	Failure	Train sequencing faults	21YGB-UKGASGRIDW	55WALDBOROUGH00H	SSE Hornsea Ltd	A0001033U.UK
Aldbrough	ALD_000000000000000000876_001	Dismissed	Unplanned	Withdrawal unavailability	2024-01-12T10:09:22+00:00	2024-01-12T10:08:00+00:00	2024-01-12T16:00:00+00:00	GWh/d	342.3	0	342.3	Failure	Train sequencing faults	21YGB-UKGASGRIDW	55WALDBOROUGH00H	SSE Hornsea Ltd	A0001033U.UK
Aldbrough	ALD_000000000000000000877_003	Inactive	Unplanned	Injection unavailability	2024-01-13T08:43:45+00:00	2024-01-12T15:31:00+00:00	2024-01-13T08:43:00+00:00	GWh/d	311.56	0	311.56	Failure	Loss of Injection due to loss of Alarms	21YGB-UKGASGRIDW	55WALDBOROUGH00H	SSE Hornsea Ltd	A0001033U.UK
Aldbrough	ALD_000000000000000000877_002	Dismissed	Unplanned	Injection unavailability	2024-01-12T22:42:16+00:00	2024-01-12T15:31:00+00:00	2024-01-13T12:00:00+00:00	GWh/d	311.56	0	311.56	Failure	Loss of Injection due to loss of Alarms	21YGB-UKGASGRIDW	55WALDBOROUGH00H	SSE Hornsea Ltd	A0001033U.UK
Aldbrough	ALD_000000000000000000877_001	Dismissed	Unplanned	Injection unavailability	2024-01-12T15:34:23+00:00	2024-01-12T15:31:00+00:00	2024-01-12T23:00:00+00:00	GWh/d	311.56	0	311.56	Failure	Loss of Injection due to loss of Alarms	21YGB-UKGASGRIDW	55WALDBOROUGH00H	SSE Hornsea Ltd	A0001033U.UK
Aldbrough	ALD_000000000000000000873_005	Inactive	Unplanned	Injection unavailability	2024-01-12T15:26:58+00:00	2024-01-11T11:45:00+00:00	2024-01-12T15:27:00+00:00	GWh/d	111.02	200.54	311.56	Failure		21YGB-UKGASGRIDW	55WALDBOROUGH00H	SSE Hornsea Ltd	A0001033U.UK
Aldbrough	ALD_000000000000000000873_004	Dismissed	Unplanned	Injection unavailability	2024-01-11T23:47:43+00:00	2024-01-11T11:45:00+00:00	2024-01-12T18:00:00+00:00	GWh/d	111.02	200.54	311.56	Failure		21YGB-UKGASGRIDW	55WALDBOROUGH00H	SSE Hornsea Ltd	A0001033U.UK
Aldbrough	ALD_000000000000000000873_003	Dismissed	Unplanned	Injection unavailability	2024-01-11T19:48:48+00:00	2024-01-11T11:45:00+00:00	2024-01-12T00:00:00+00:00	GWh/d	311.56	0	311.56	Failure		21YGB-UKGASGRIDW	55WALDBOROUGH00H	SSE Hornsea Ltd	A0001033U.UK
Aldbrough	ALD_000000000000000000873_002	Dismissed	Unplanned	Injection unavailability	2024-01-11T16:37:10+00:00	2024-01-11T11:45:00+00:00	2024-01-11T20:00:00+00:00	GWh/d	311.56	0	311.56	Failure		21YGB-UKGASGRIDW	55WALDBOROUGH00H	SSE Hornsea Ltd	A0001033U.UK
Aldbrough	ALD_000000000000000000873_001	Dismissed	Unplanned	Injection unavailability	2024-01-11T11:52:15+00:00	2024-01-11T11:45:00+00:00	2024-01-11T17:00:00+00:00	GWh/d	311.56	0	311.56	Failure		21YGB-UKGASGRIDW	55WALDBOROUGH00H	SSE Hornsea Ltd	A0001033U.UK
Aldbrough	ALD_000000000000000000875_006	Inactive	Unplanned	Withdrawal unavailability	2024-01-12T01:55:16+00:00	2024-01-11T11:45:00+00:00	2024-01-12T01:56:00+00:00	GWh/d	342.3	0	342.3	Failure		21YGB-UKGASGRIDW	55WALDBOROUGH00H	SSE Hornsea Ltd	A0001033U.UK
Aldbrough	ALD_000000000000000000875_005	Dismissed	Unplanned	Withdrawal unavailability	2024-01-12T01:02:15+00:00	2024-01-11T11:45:00+00:00	2024-01-12T02:00:00+00:00	GWh/d	342.3	0	342.3	Failure		21YGB-UKGASGRIDW	55WALDBOROUGH00H	SSE Hornsea Ltd	A0001033U.UK
Aldbrough	ALD_000000000000000000875_004	Dismissed	Unplanned	Withdrawal unavailability	2024-01-11T23:41:30+00:00	2024-01-11T11:45:00+00:00	2024-01-12T01:00:00+00:00	GWh/d	342.3	0	342.3	Failure		21YGB-UKGASGRIDW	55WALDBOROUGH00H	SSE Hornsea Ltd	A0001033U.UK
Aldbrough	ALD_000000000000000000875_003	Dismissed	Unplanned	Withdrawal unavailability	2024-01-11T19:47:33+00:00	2024-01-11T11:45:00+00:00	2024-01-12T00:00:00+00:00	GWh/d	342.3	0	342.3	Failure		21YGB-UKGASGRIDW	55WALDBOROUGH00H	SSE Hornsea Ltd	A0001033U.UK
Aldbrough	ALD_000000000000000000875_002	Dismissed	Unplanned	Withdrawal unavailability	2024-01-11T16:36:00+00:00	2024-01-11T11:45:00+00:00	2024-01-11T20:00:00+00:00	GWh/d	342.3	0	342.3	Failure		21YGB-UKGASGRIDW	55WALDBOROUGH00H	SSE Hornsea Ltd	A0001033U.UK
Aldbrough	ALD_000000000000000000875_001	Dismissed	Unplanned	Withdrawal unavailability	2024-01-11T11:54:47+00:00	2024-01-11T11:45:00+00:00	2024-01-11T17:00:00+00:00	GWh/d	342.3	0	342.3	Failure		21YGB-UKGASGRIDW	55WALDBOROUGH00H	SSE Hornsea Ltd	A0001033U.UK
Aldbrough	ALD_000000000000000000874_002	Dismissed	Unplanned	Injection unavailability	2024-01-11T12:15:03+00:00	2024-01-11T11:45:00+00:00	2024-01-11T17:00:00+00:00	GWh/d	311.56	0	311.56	Failure	Duplicate entry	21YGB-UKGASGRIDW	55WALDBOROUGH00H	SSE Hornsea Ltd	A0001033U.UK
Aldbrough	ALD_000000000000000000874_001	Dismissed	Unplanned	Injection unavailability	2024-01-11T11:52:28+00:00	2024-01-11T11:45:00+00:00	2024-01-11T17:00:00+00:00	GWh/d	311.56	0	311.56	Failure		21YGB-UKGASGRIDW	55WALDBOROUGH00H	SSE Hornsea Ltd	A0001033U.UK
Aldbrough	ALD_000000000000000000872_003	Inactive	Planned	Storage unavailability	2024-01-03T17:05:43+00:00	2024-01-02T05:00:00+00:00	2024-01-03T17:06:00+00:00	TWh	0.47347	2.6886942	3.1621642	Planned Outage	Ald 9 Pipework shotblast	21YGB-UKGASGRIDW	55WALDBOROUGH00H	SSE Hornsea Ltd	A0001033U.UK
Aldbrough	ALD_000000000000000000872_002	Dismissed	Planned	Storage unavailability	2024-01-02T10:39:03+00:00	2024-01-02T05:00:00+00:00	2024-01-03T19:00:00+00:00	TWh	0.47347	2.6886942	3.1621642	Planned Outage	Ald 9 Pipework shotblast	21YGB-UKGASGRIDW	55WALDBOROUGH00H	SSE Hornsea Ltd	A0001033U.UK
Aldbrough	ALD_000000000000000000872_001	Dismissed	Planned	Storage unavailability	2024-01-01T17:00:01+00:00	2024-01-02T05:00:00+00:00	2024-01-03T12:00:00+00:00	TWh	0.47347	2.6886942	3.1621642	Planned Outage	Ald 9 Pipework shotblast	21YGB-UKGASGRIDW	55WALDBOROUGH00H	SSE Hornsea Ltd	A0001033U.UK
Aldbrough	ALD_000000000000000000869_002	Inactive	Planned	Injection unavailability	2023-12-23T21:08:07+00:00	2023-12-23T18:56:00+00:00	2023-12-23T21:00:00+00:00	GWh/d	311.56	0	311.56	Failure	F&G Fault	21YGB-UKGASGRIDW	55WALDBOROUGH00H	SSE Hornsea Ltd	A0001033U.UK
Aldbrough	ALD_000000000000000000869_001	Dismissed	Planned	Injection unavailability	2023-12-23T18:57:39+00:00	2023-12-23T18:56:00+00:00	2023-12-23T22:00:00+00:00	GWh/d	311.56	0	311.56	Failure	F&G Fault	21YGB-UKGASGRIDW	55WALDBOROUGH00H	SSE Hornsea Ltd	A0001033U.UK
Aldbrough	ALD_000000000000000000870_002	Inactive	Unplanned	Withdrawal unavailability	2023-12-23T21:07:50+00:00	2023-12-23T19:00:00+00:00	2023-12-23T21:00:00+00:00	GWh/d	342.3	0	342.3	Failure	F&G Fault	21YGB-UKGASGRIDW	55WALDBOROUGH00H	SSE Hornsea Ltd	A0001033U.UK
Aldbrough	ALD_000000000000000000870_001	Dismissed	Unplanned	Withdrawal unavailability	2023-12-23T19:01:17+00:00	2023-12-23T19:00:00+00:00	2023-12-23T22:00:00+00:00	GWh/d	342.3	0	342.3	Failure	F&G Fault	21YGB-UKGASGRIDW	55WALDBOROUGH00H	SSE Hornsea Ltd	A0001033U.UK
Aldbrough	ALD_000000000000000000867_003	Inactive	Planned	Storage unavailability	2023-12-15T12:51:20+00:00	2023-12-14T05:00:00+00:00	2023-12-15T12:50:00+00:00	TWh	0.855	2.3071642	3.1621642	Planned Outage	A3 and A7 removed from service.	21YGB-UKGASGRIDW	55WALDBOROUGH00H	SSE Hornsea Ltd	A0001033U.UK

The information that is set out on these pages is provided pursuant to Regulation (EU) 1227/2011 and associated guidance. The provision, reading or use of the information neither establishes a contract nor creates a unilateral guarantee. Nor does the provision of information constitute the furnishing of investment advice, or an invitation to buy or sell goods, derivatives or (other) financial instruments. If any provisions of this disclaimer shall be unlawful, void or for any reason unenforceable then that provision shall be deemed severable and shall not affect the validity and enforceability of the remaining provisions. This disclaimer is given on the basis of English law and shall be subject to the exclusive jurisdictions of the English courts. Historical UMMs as previously published can be located within the public area of our website – https://www.ssehl.co.uk/HALO. An explanation of how we calculate our maximum technical capacities and how we measure is available from https://www.ssehl.co.uk/HALO.