This site is optimised for modern web browsers, and does not fully support your Internet Browser version.

Last update at: 2024-04-24T13:00:00+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:
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_000000000000000000773_001 Dismissed Unplanned Storage unavailability 2023-07-05T23:03:23+01:00 2023-07-05T23:01:00+01:00 2023-07-06T03:00:00+01:00 TWh 3.2992861 0 3.2992861 Failure
21YGB-UKGASGRIDW 55WALDBOROUGH00H
SSE Hornsea Ltd
 A0001033U.UK
Aldbrough ALD_000000000000000000752_003 Dismissed Planned Storage unavailability 2023-06-23T08:34:18+01:00 2023-08-06T05:00:00+01:00 2023-10-26T18:00:00+01:00 TWh 0.435 2.8667895 3.2992861 Planned Outage
Loss of ALD 3
 21YGB-UKGASGRIDW 55WALDBOROUGH00H
SSE Hornsea Ltd
 A0001033U.UK
Aldbrough ALD_000000000000000000661_007 Inactive Unplanned Storage unavailability 2023-06-16T10:22:16+01:00 2022-03-22T14:15:00+00:00 2023-06-16T10:20:00+01:00 TWh 0.06761 2.3882077 3.2992861 Failure
Cavern 4 unavailable
 21YGB-UKGASGRIDW 55WALDBOROUGH00H
SSE Hornsea Ltd
 A0001033U.UK
Aldbrough ALD_000000000000000000752_002 Dismissed Planned Storage unavailability 2023-05-05T14:40:37+01:00 2023-08-06T05:00:00+01:00 2023-10-26T18:00:00+01:00 TWh 0.435 2.8667895 3.3017895 Planned Outage
Loss of ALD 3
 21YGB-UKGASGRIDW 55WALDBOROUGH00H
SSE Hornsea Ltd
 A0001033U.UK
Aldbrough ALD_000000000000000000752_001 Dismissed Planned Storage unavailability 2023-05-04T12:58:06+01:00 2023-08-06T05:00:00+01:00 2023-10-26T18:00:00+01:00 TWh 1.27032 2.0314695 3.3017895 Planned Outage
Loss of ALD 3
 21YGB-UKGASGRIDW 55WALDBOROUGH00H
SSE Hornsea Ltd
 A0001033U.UK
Aldbrough ALD_000000000000000000661_006 Dismissed Unplanned Storage unavailability 2023-01-12T12:44:15+00:00 2022-03-22T14:15:00+00:00 2023-12-31T05:00:00+00:00 TWh 0.06761 2.3882077 3.3017895 Failure
Cavern 4 unavailable
 21YGB-UKGASGRIDW 55WALDBOROUGH00H
SSE Hornsea Ltd
 A0001033U.UK
Aldbrough ALD_000000000000000000753_002 Inactive Unplanned Storage unavailability 2023-05-26T18:16:40+01:00 2023-05-21T18:00:00+01:00 2023-05-26T18:00:00+01:00 TWh 0.934 2.3677895 3.3017895 Failure
Wells 1 & 9 unavailable
 21YGB-UKGASGRIDW 55WALDBOROUGH00H
SSE Hornsea Ltd
 A0001033U.UK
Aldbrough ALD_000000000000000000753_001 Dismissed Unplanned Storage unavailability 2023-05-17T15:30:14+01:00 2023-05-21T18:00:00+01:00 2023-05-26T18:00:00+01:00 TWh 0.934 2.3677895 3.3017895 Failure
Wells 1 & 9 unavailable
 21YGB-UKGASGRIDW 55WALDBOROUGH00H
SSE Hornsea Ltd
 A0001033U.UK
Aldbrough ALD_000000000000000000742_002 Inactive Planned Storage unavailability 2023-05-07T06:02:32+01:00 2023-04-27T05:00:00+01:00 2023-05-07T05:00:00+01:00 TWh 0.89 2.4117895 3.3017895 Planned Outage
Ald 8 Maintenance and sonar survey
 21YGB-UKGASGRIDW 55WALDBOROUGH00H
SSE Hornsea Ltd
 A0001033U.UK
Aldbrough ALD_000000000000000000743_002 Inactive Planned Storage unavailability 2023-05-07T06:02:32+01:00 2023-04-30T05:00:00+01:00 2023-05-07T05:00:00+01:00 TWh 0.89 2.4117895 3.3017895 Planned Outage
Ald 2 maintenance and sonar survey
 21YGB-UKGASGRIDW 55WALDBOROUGH00H
SSE Hornsea Ltd
 A0001033U.UK
Aldbrough ALD_000000000000000000743_001 Dismissed Planned Storage unavailability 2023-04-14T13:13:50+01:00 2023-04-30T05:00:00+01:00 2023-05-07T05:00:00+01:00 TWh 0.89 2.4117895 3.3017895 Planned Outage
Ald 2 maintenance and sonar survey
 21YGB-UKGASGRIDW 55WALDBOROUGH00H
SSE Hornsea Ltd
 A0001033U.UK
Aldbrough ALD_000000000000000000742_001 Dismissed Planned Storage unavailability 2023-04-14T13:09:17+01:00 2023-04-27T05:00:00+01:00 2023-05-07T05:00:00+01:00 TWh 0.89 2.4117895 3.3017895 Planned Outage
Ald 8 Maintenance and sonar survey
 21YGB-UKGASGRIDW 55WALDBOROUGH00H
SSE Hornsea Ltd
 A0001033U.UK
Aldbrough ALD_000000000000000000741_002 Inactive Planned Storage unavailability 2023-04-26T19:02:32+01:00 2023-04-17T05:00:00+01:00 2023-04-26T18:00:00+01:00 TWh 1.29 2.0117895 3.3017895 Planned Outage
Ald 1 Maintenance and Sonar Survey
 21YGB-UKGASGRIDW 55WALDBOROUGH00H
SSE Hornsea Ltd
 A0001033U.UK
Aldbrough ALD_000000000000000000741_001 Dismissed Planned Storage unavailability 2023-04-14T13:03:53+01:00 2023-04-17T05:00:00+01:00 2023-04-26T18:00:00+01:00 TWh 1.29 2.0117895 3.3017895 Planned Outage
Ald 1 Maintenance and Sonar Survey
 21YGB-UKGASGRIDW 55WALDBOROUGH00H
SSE Hornsea Ltd
 A0001033U.UK
Aldbrough ALD_000000000000000000737_003 Inactive Planned Storage unavailability 2023-03-29T13:02:32+01:00 2023-03-28T11:00:00+01:00 2023-03-29T12:00:00+01:00 TWh 0.75242 2.5493695 3.3017895 Planned Outage
Block placement
 21YGB-UKGASGRIDW 55WALDBOROUGH00H
SSE Hornsea Ltd
 A0001033U.UK
Aldbrough ALD_000000000000000000737_002 Dismissed Planned Storage unavailability 2023-03-28T15:47:16+01:00 2023-03-28T11:00:00+01:00 2023-03-29T12:00:00+01:00 TWh 0.75242 2.5493695 3.3017895 Planned Outage
Block placement
 21YGB-UKGASGRIDW 55WALDBOROUGH00H
SSE Hornsea Ltd
 A0001033U.UK
Aldbrough ALD_000000000000000000737_001 Dismissed Planned Storage unavailability 2023-03-24T13:08:51+00:00 2023-03-28T11:00:00+01:00 2023-03-28T19:00:00+01:00 TWh 0.75242 2.5493695 3.3017895 Planned Outage
Block placement
 21YGB-UKGASGRIDW 55WALDBOROUGH00H
SSE Hornsea Ltd
 A0001033U.UK
Aldbrough ALD_000000000000000000733_002 Dismissed Planned Storage unavailability 2023-03-02T15:20:04+00:00 2024-03-01T06:00:00+00:00 2024-03-01T06:30:00+00:00 TWh 0.01 3.2917895 3.3017895 Planned Outage
Publication for test purpose only. No loss of availability.
 21YGB-UKGASGRIDW 55WALDBOROUGH00H
SSE Hornsea Ltd
 A0001033U.UK
Aldbrough ALD_000000000000000000733_001 Dismissed Planned Storage unavailability 2023-03-02T15:17:22+00:00 2024-03-01T06:00:00+00:00 2024-03-01T06:30:00+00:00 TWh 0.01 3.2917895 3.3017895 Planned Outage
Publication for test purpose only. No loss of availability.
 21YGB-UKGASGRIDW 55WALDBOROUGH00H
SSE Hornsea Ltd
 A0001033U.UK
Aldbrough ALD_000000000000000000701_004 Inactive Unplanned Storage unavailability 2022-12-12T00:17:37+00:00 2022-11-07T10:00:00+00:00 2022-12-11T23:10:00+00:00 TWh 0.42 2.8817895 3.3017895 Failure
Ald 1
 21YGB-UKGASGRIDW 55WALDBOROUGH00H
SSE Hornsea Ltd
 A0001033U.UK
Aldbrough ALD_000000000000000000701_003 Dismissed Unplanned Storage unavailability 2022-12-11T22:59:24+00:00 2022-11-07T10:00:00+00:00 2022-12-11T23:10:00+00:00 TWh 0.42 2.8817895 3.3017895 Failure
Ald 1
 21YGB-UKGASGRIDW 55WALDBOROUGH00H
SSE Hornsea Ltd
 A0001033U.UK
Aldbrough ALD_000000000000000000701_002 Dismissed Unplanned Storage unavailability 2022-11-21T08:52:27+00:00 2022-11-07T10:00:00+00:00 2022-12-21T18:00:00+00:00 TWh 0.42 2.8817895 3.3017895 Failure
Ald 1
 21YGB-UKGASGRIDW 55WALDBOROUGH00H
SSE Hornsea Ltd
 A0001033U.UK
Aldbrough ALD_000000000000000000701_001 Dismissed Unplanned Storage unavailability 2022-11-07T10:52:38+00:00 2022-11-07T10:00:00+00:00 2022-11-28T05:00:00+00:00 TWh 0.42 2.8817895 3.3017895 Failure
Ald 1
 21YGB-UKGASGRIDW 55WALDBOROUGH00H
SSE Hornsea Ltd
 A0001033U.UK
Aldbrough ALD_000000000000000000706_003 Inactive Planned Storage unavailability 2022-12-02T14:52:18+00:00 2022-11-27T05:00:00+00:00 2022-12-02T15:00:00+00:00 TWh 0.41 2.8917895 3.3017895 Planned Outage
Wellhead maintenance
21YGB-UKGASGRIDW 55WALDBOROUGH00H
SSE Hornsea Ltd
 A0001033U.UK
Aldbrough ALD_000000000000000000706_002 Dismissed Planned Storage unavailability 2022-12-01T15:24:20+00:00 2022-11-27T05:00:00+00:00 2022-12-02T18:00:00+00:00 TWh 0.41 2.8917895 3.3017895 Planned Outage
Wellhead maintenance
21YGB-UKGASGRIDW 55WALDBOROUGH00H
SSE Hornsea Ltd
 A0001033U.UK
Aldbrough ALD_000000000000000000706_001 Dismissed Planned Storage unavailability 2022-11-23T15:21:57+00:00 2022-11-27T05:00:00+00:00 2022-12-01T18:00:00+00:00 TWh 0.41 2.8917895 3.3017895 Planned Outage
Wellhead maintenance
21YGB-UKGASGRIDW 55WALDBOROUGH00H
SSE Hornsea Ltd
 A0001033U.UK
Aldbrough ALD_000000000000000000700_003 Inactive Unplanned Storage unavailability 2022-11-04T14:39:29+00:00 2022-10-24T16:00:00+01:00 2022-11-04T14:35:00+00:00 TWh 0.89 2.0553019 3.3017895 Failure
21YGB-UKGASGRIDW 55WALDBOROUGH00H
SSE Hornsea Ltd
 A0001033U.UK
Aldbrough ALD_000000000000000000700_002 Dismissed Unplanned Storage unavailability 2022-11-03T15:20:09+00:00 2022-10-24T16:00:00+01:00 2022-11-04T18:00:00+00:00 TWh 0.89 2.0553019 3.3017895 Failure
21YGB-UKGASGRIDW 55WALDBOROUGH00H
SSE Hornsea Ltd
 A0001033U.UK
Atwick ATW_000000000000000000631_002 Inactive Unplanned Storage unavailability 2022-01-04T13:19:13+00:00 2022-01-04T11:23:00+00:00 2022-01-04T13:00:00+00:00 TWh 0.3012 3.014281 3.315481 Failure
A7
 21YGB-UKGASGRIDW 55WATWICK-SSE00J
SSE Hornsea Ltd
 A0001033U.UK
Atwick ATW_000000000000000000631_001 Dismissed Unplanned Storage unavailability 2022-01-04T11:24:51+00:00 2022-01-04T11:23:00+00:00 2022-01-05T18:00:00+00:00 TWh 0.3012 3.014281 3.315481 Failure
A7
 21YGB-UKGASGRIDW 55WATWICK-SSE00J
SSE Hornsea Ltd
 A0001033U.UK
Atwick ATW_000000000000000000630_003 Inactive Unplanned Storage unavailability 2021-12-22T16:02:07+00:00 2021-12-20T08:27:00+00:00 2021-12-22T16:01:00+00:00 TWh 0.400165903 2.456757 3.315481 Failure
Methanol injection issue at cavity.
 21YGB-UKGASGRIDW 55WATWICK-SSE00J
SSE Hornsea Ltd
 A0001033U.UK
Atwick ATW_000000000000000000630_002 Dismissed Unplanned Storage unavailability 2021-12-21T14:37:24+00:00 2021-12-20T08:27:00+00:00 2021-12-22T18:00:00+00:00 TWh 0.400165903 2.456757 3.315481 Failure
Methanol injection issue at cavity.
 21YGB-UKGASGRIDW 55WATWICK-SSE00J
SSE Hornsea Ltd
 A0001033U.UK
Atwick ATW_000000000000000000630_001 Dismissed Unplanned Storage unavailability 2021-12-20T08:45:47+00:00 2021-12-20T08:27:00+00:00 2021-12-21T16:00:00+00:00 TWh 0.400165903 2.456757 3.315481 Failure
Methanol injection issue at cavity.
 21YGB-UKGASGRIDW 55WATWICK-SSE00J
SSE Hornsea Ltd
 A0001033U.UK
Atwick ATW_000000000000000000628_002 Inactive Unplanned Storage unavailability 2021-12-20T16:22:55+00:00 2021-12-19T18:10:00+00:00 2021-12-20T18:00:00+00:00 TWh 0.4586 2.856881 3.315481 Failure
Cavity 8
 21YGB-UKGASGRIDW 55WATWICK-SSE00J
SSE Hornsea Ltd
 A0001033U.UK
Atwick ATW_000000000000000000628_001 Dismissed Unplanned Storage unavailability 2021-12-19T18:31:44+00:00 2021-12-19T18:10:00+00:00 2021-12-20T18:00:00+00:00 TWh 0.4586 2.856881 3.315481 Failure
Cavity 8
 21YGB-UKGASGRIDW 55WATWICK-SSE00J
SSE Hornsea Ltd
 A0001033U.UK
Atwick ATW_000000000000000000615_005 Inactive Planned Storage unavailability 2021-12-07T17:28:07+00:00 2021-11-22T08:00:00+00:00 2021-12-07T17:25:00+00:00 TWh 0.45889 2.8703723 3.3292623 Planned Outage
Storage Cavern outage
 21YGB-UKGASGRIDW 55WATWICK-SSE00J
SSE Hornsea Ltd
 A0001033U.UK
Atwick ATW_000000000000000000615_004 Dismissed Planned Storage unavailability 2021-12-03T11:51:48+00:00 2021-11-22T08:00:00+00:00 2021-12-07T18:00:00+00:00 TWh 0.45889 2.8703723 3.3292623 Planned Outage
Storage Cavern outage
 21YGB-UKGASGRIDW 55WATWICK-SSE00J
SSE Hornsea Ltd
 A0001033U.UK
Atwick ATW_000000000000000000615_003 Dismissed Planned Storage unavailability 2021-11-15T12:01:50+00:00 2021-11-22T08:00:00+00:00 2021-12-06T12:00:00+00:00 TWh 0.45889 2.8703723 3.3292623 Planned Outage
Storage Cavern outage
 21YGB-UKGASGRIDW 55WATWICK-SSE00J
SSE Hornsea Ltd
 A0001033U.UK
Atwick ATW_000000000000000000615_002 Dismissed Planned Storage unavailability 2021-11-15T11:47:51+00:00 2021-11-22T08:00:00+00:00 2021-12-06T12:00:00+00:00 TWh 0 3.3292623 3.3292623 Planned Outage
Storage Cavern outage
 21YGB-UKGASGRIDW 55WATWICK-SSE00J
SSE Hornsea Ltd
 A0001033U.UK
Atwick ATW_000000000000000000615_001 Dismissed Planned Storage unavailability 2021-11-15T11:46:54+00:00 2021-11-22T08:00:00+00:00 2021-12-06T12:00:00+00:00 TWh 0 3.3292623 3.3292623 Planned Outage
ATW 8 storage cavern will be out of service for the duration of the REMIT
 21YGB-UKGASGRIDW 55WATWICK-SSE00J
SSE Hornsea Ltd
 A0001033U.UK
Atwick ATW_000000000000000000621_002 Inactive Unplanned Storage unavailability 2021-12-06T16:01:28+00:00 2021-12-05T13:20:00+00:00 2021-12-06T16:02:00+00:00 TWh 0.3012 3.0280623 3.3292623 Failure
Cavity Outage
 21YGB-UKGASGRIDW 55WATWICK-SSE00J
SSE Hornsea Ltd
 A0001033U.UK
Atwick ATW_000000000000000000621_001 Dismissed Unplanned Storage unavailability 2021-12-05T13:24:07+00:00 2021-12-05T13:20:00+00:00 2021-12-06T18:00:00+00:00 TWh 0.3012 3.0280623 3.3292623 Failure
Cavity Outage
 21YGB-UKGASGRIDW 55WATWICK-SSE00J
SSE Hornsea Ltd
 A0001033U.UK
Atwick ATW_000000000000000000618_003 Inactive Unplanned Storage unavailability 2021-11-29T15:35:20+00:00 2021-11-24T16:23:00+00:00 2021-11-29T15:30:00+00:00 TWh 0.371148 2.9581143 3.3292623 Planned Outage
Cavity 3 outage
 21YGB-UKGASGRIDW 55WATWICK-SSE00J
SSE Hornsea Ltd
 A0001033U.UK
Atwick ATW_000000000000000000618_002 Dismissed Unplanned Storage unavailability 2021-11-26T12:31:29+00:00 2021-11-24T16:23:00+00:00 2021-11-29T18:00:00+00:00 TWh 0.371148 2.9581143 3.3292623 Planned Outage
Cavity 3 outage
 21YGB-UKGASGRIDW 55WATWICK-SSE00J
SSE Hornsea Ltd
 A0001033U.UK
Atwick ATW_000000000000000000618_001 Dismissed Unplanned Storage unavailability 2021-11-24T16:25:02+00:00 2021-11-24T16:23:00+00:00 2021-11-26T18:00:00+00:00 TWh 0.371148 2.9581143 3.3292623 Planned Outage
Cavity outage
 21YGB-UKGASGRIDW 55WATWICK-SSE00J
SSE Hornsea Ltd
 A0001033U.UK
Atwick ATW_000000000000000000612_002 Inactive Planned Storage unavailability 2021-11-05T14:48:59+00:00 2021-10-31T13:00:00+00:00 2021-11-05T15:00:00+00:00 TWh 0.46913 2.8601323 3.3292623 Planned Outage
Scheduled maintenance A9
 21YGB-UKGASGRIDW 55WATWICK-SSE00J
SSE Hornsea Ltd
 A0001033U.UK
Atwick ATW_000000000000000000612_001 Dismissed Planned Storage unavailability 2021-10-31T13:08:55+00:00 2021-10-31T13:00:00+00:00 2021-11-05T18:00:00+00:00 TWh 0.46913 2.8601323 3.3292623 Planned Outage
Scheduled maintenance A9
 21YGB-UKGASGRIDW 55WATWICK-SSE00J
SSE Hornsea Ltd
 A0001033U.UK
Atwick ATW_000000000000000000583_003 Inactive Planned Storage unavailability 2021-06-02T15:34:06+01:00 2021-05-30T19:05:00+01:00 2021-06-02T15:34:00+01:00 TWh 0.226309 3.1062104 3.3325194 Planned Outage
Cavity 2
 21YGB-UKGASGRIDW 55WATWICK-SSE00J
SSE Hornsea Ltd
 A0001033U.UK
Atwick ATW_000000000000000000583_002 Dismissed Planned Storage unavailability 2021-05-30T19:05:34+01:00 2021-05-30T19:05:00+01:00 2021-06-06T18:00:00+01:00 TWh 0.226309 3.1062104 3.3325194 Planned Outage
Cavity 2
 21YGB-UKGASGRIDW 55WATWICK-SSE00J
SSE Hornsea Ltd
 A0001033U.UK
Atwick ATW_000000000000000000583_001 Dismissed Planned Storage unavailability 2021-05-05T16:01:27+01:00 2021-06-01T05:00:00+01:00 2021-06-06T18:00:00+01:00 TWh 0.226309 3.1062104 3.3325194 Planned Outage
Cavity 2
 21YGB-UKGASGRIDW 55WATWICK-SSE00J
SSE Hornsea Ltd
 A0001033U.UK
Explanation
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.