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Last update at: 2023-03-22T10:30:00+00:00

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

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

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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 >
Atwick ATW_000000000000000000735_001 Active Planned Withdrawal unavailability 2023-03-22T10:28:36+00:00 2023-03-29T08:00:00+01:00 2023-03-29T16:00:00+01:00 GWh/d 130 0 130 Planned Outage
USM
 21YGB-UKGASGRIDW 55WATWICK-SSE00J
SSE Hornsea Ltd
 A0001033U.UK
Atwick ATW_000000000000000000734_001 Active Planned Injection unavailability 2023-03-22T10:27:02+00:00 2023-03-29T08:00:00+01:00 2023-03-29T16:00:00+01:00 GWh/d 30 0 30 Planned Outage
USM
 21YGB-UKGASGRIDW 55WATWICK-SSE00J
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
Atwick ATW_000000000000000000493_003 Active Planned Withdrawal unavailability 2023-02-24T11:56:39+00:00 2023-06-30T05:00:00+01:00 2023-07-17T05:00:00+01:00 GWh/d 130 0 130 Planned Outage
21YGB-UKGASGRIDW 55WATWICK-SSE00J
SSE Hornsea Ltd
 A0001033U.UK
Atwick ATW_000000000000000000493_002 Dismissed Planned Withdrawal unavailability 2020-07-28T13:48:32+01:00 2023-07-01T05:00:00+01:00 2023-07-15T05:00:00+01:00 GWh/d 130 0 130 Planned Outage
21YGB-UKGASGRIDW 55WATWICK-SSE00J
SSE Hornsea Ltd
 A0001033U.UK
Atwick ATW_000000000000000000493_001 Dismissed Planned Withdrawal unavailability 2020-07-11T23:13:18+01:00 2023-07-01T05:00:00+01:00 2023-07-08T05:00:00+01:00 GWh/d 130 0 130 Planned Outage
21YGB-UKGASGRIDW 55WATWICK-SSE00J
SSE Hornsea Ltd
 A0001033U.UK
Atwick ATW_000000000000000000492_002 Active Planned Injection unavailability 2023-02-24T11:55:28+00:00 2023-06-30T05:00:00+01:00 2023-07-17T05:00:00+01:00 GWh/d 30 0 30 Planned Outage
21YGB-UKGASGRIDW 55WATWICK-SSE00J
SSE Hornsea Ltd
 A0001033U.UK
Atwick ATW_000000000000000000492_001 Dismissed Planned Injection unavailability 2020-07-11T23:11:57+01:00 2023-07-01T05:00:00+01:00 2023-07-15T05:00:00+01:00 GWh/d 30 0 30 Planned Outage
21YGB-UKGASGRIDW 55WATWICK-SSE00J
SSE Hornsea Ltd
 A0001033U.UK
Atwick ATW_000000000000000000730_002 Inactive Planned Withdrawal unavailability 2023-02-08T13:02:32+00:00 2023-02-08T10:00:00+00:00 2023-02-08T12:00:00+00:00 GWh/d 50 80 130 Planned Outage
Stream 7.
 21YGB-UKGASGRIDW 55WATWICK-SSE00J
SSE Hornsea Ltd
 A0001033U.UK
Atwick ATW_000000000000000000730_001 Dismissed Planned Withdrawal unavailability 2023-02-02T09:11:40+00:00 2023-02-08T10:00:00+00:00 2023-02-08T12:00:00+00:00 GWh/d 50 80 130 Planned Outage
Stream 7.
 21YGB-UKGASGRIDW 55WATWICK-SSE00J
SSE Hornsea Ltd
 A0001033U.UK
Atwick ATW_000000000000000000729_002 Inactive Planned Withdrawal unavailability 2023-02-06T15:45:38+00:00 2023-02-06T08:00:00+00:00 2023-02-06T15:42:00+00:00 GWh/d 50 80 130 Planned Outage
Stream 8
21YGB-UKGASGRIDW 55WATWICK-SSE00J
SSE Hornsea Ltd
 A0001033U.UK
Atwick ATW_000000000000000000729_001 Dismissed Planned Withdrawal unavailability 2023-02-02T08:49:06+00:00 2023-02-06T08:00:00+00:00 2023-02-06T16:00:00+00:00 GWh/d 50 80 130 Planned Outage
Stream 8
21YGB-UKGASGRIDW 55WATWICK-SSE00J
SSE Hornsea Ltd
 A0001033U.UK
Atwick ATW_000000000000000000724_002 Inactive Planned Storage unavailability 2023-01-27T18:55:31+00:00 2023-01-27T06:00:00+00:00 2023-01-27T18:55:00+00:00 TWh 0.665322552 2.803322148 3.4686447 Planned Outage
Cavity 5 Six Monthly Maintenace
 21YGB-UKGASGRIDW 55WATWICK-SSE00J
SSE Hornsea Ltd
 A0001033U.UK
Atwick ATW_000000000000000000724_001 Dismissed Planned Storage unavailability 2023-01-10T07:34:25+00:00 2023-01-27T06:00:00+00:00 2023-01-27T18:00:00+00:00 TWh 0.665322552 2.803322148 3.4686447 Planned Outage
Cavity 5 Six Monthly Maintenace
 21YGB-UKGASGRIDW 55WATWICK-SSE00J
SSE Hornsea Ltd
 A0001033U.UK
Atwick ATW_000000000000000000723_002 Inactive Planned Storage unavailability 2023-01-20T18:43:05+00:00 2023-01-20T06:00:00+00:00 2023-01-20T18:00:00+00:00 TWh 0.390799835 3.077844865 3.4686447 Planned Outage
Cavity 3 Six Monthly Maintenance
 21YGB-UKGASGRIDW 55WATWICK-SSE00J
SSE Hornsea Ltd
 A0001033U.UK
Atwick ATW_000000000000000000723_001 Dismissed Planned Storage unavailability 2023-01-10T07:31:25+00:00 2023-01-20T06:00:00+00:00 2023-01-20T18:00:00+00:00 TWh 0.390799835 3.077844865 3.4686447 Planned Outage
Cavity 3 Six Monthly Maintenance
 21YGB-UKGASGRIDW 55WATWICK-SSE00J
SSE Hornsea Ltd
 A0001033U.UK
Atwick ATW_000000000000000000722_002 Inactive Planned Storage unavailability 2023-01-19T19:02:32+00:00 2023-01-19T06:00:00+00:00 2023-01-19T18:00:00+00:00 TWh 0.238280125 3.230364575 3.4686447 Planned Outage
Cavity 2 Six Monthly Maintenance
 21YGB-UKGASGRIDW 55WATWICK-SSE00J
SSE Hornsea Ltd
 A0001033U.UK
Atwick ATW_000000000000000000722_001 Dismissed Planned Storage unavailability 2023-01-10T07:29:17+00:00 2023-01-19T06:00:00+00:00 2023-01-19T18:00:00+00:00 TWh 0.238280125 3.230364575 3.4686447 Planned Outage
Cavity 2 Six Monthly Maintenance
 21YGB-UKGASGRIDW 55WATWICK-SSE00J
SSE Hornsea Ltd
 A0001033U.UK
Atwick ATW_000000000000000000721_002 Inactive Planned Storage unavailability 2023-01-18T08:43:03+00:00 2023-01-18T06:00:00+00:00 2023-01-18T08:40:00+00:00 TWh 0.48312084 2.98552386 3.4686447 Planned Outage
Cavity 8 6 Six Monthly Maintenance.
 21YGB-UKGASGRIDW 55WATWICK-SSE00J
SSE Hornsea Ltd
 A0001033U.UK
Atwick ATW_000000000000000000721_001 Dismissed Planned Storage unavailability 2023-01-10T07:25:16+00:00 2023-01-18T06:00:00+00:00 2023-01-18T18:00:00+00:00 TWh 0.48312084 2.98552386 3.4686447 Planned Outage
Cavity 8 6 Six Monthly Maintenance.
 21YGB-UKGASGRIDW 55WATWICK-SSE00J
SSE Hornsea Ltd
 A0001033U.UK
Aldbrough ALD_000000000000000000727_001 Active Planned Injection unavailability 2023-01-16T11:23:40+00:00 2023-05-21T18:00:00+01:00 2023-05-23T18:00:00+01:00 GWh/d 111.02 200.54 311.56 Planned Outage
Gas compressor 3
 21YGB-UKGASGRIDW 55WALDBOROUGH00H
SSE Hornsea Ltd
 A0001033U.UK
Aldbrough ALD_000000000000000000726_001 Active Planned Injection unavailability 2023-01-16T11:17:27+00:00 2023-05-06T05:00:00+01:00 2023-05-07T05:00:00+01:00 GWh/d 111.02 200.54 311.56 Planned Outage
Gas compressor 3.
 21YGB-UKGASGRIDW 55WALDBOROUGH00H
SSE Hornsea Ltd
 A0001033U.UK
Aldbrough ALD_000000000000000000475_003 Active Planned Withdrawal unavailability 2023-01-16T11:07:57+00:00 2023-06-03T05:00:00+01:00 2023-06-19T18:00:00+01:00 GWh/d 121.5 220.8 342.3 Planned Outage
Prod Train 2 Outage
 21YGB-UKGASGRIDW 55WALDBOROUGH00H
SSE Hornsea Ltd
 A0001033U.UK
Aldbrough ALD_000000000000000000475_002 Dismissed Planned Withdrawal unavailability 2022-06-01T22:27:29+01:00 2023-05-19T18:00:00+01:00 2023-06-16T18:00:00+01:00 GWh/d 121.5 220.8 342.3 Planned Outage
Prod Train 2 Outage
 21YGB-UKGASGRIDW 55WALDBOROUGH00H
SSE Hornsea Ltd
 A0001033U.UK
Aldbrough ALD_000000000000000000475_001 Dismissed Planned Withdrawal unavailability 2020-07-11T16:12:17+01:00 2023-05-20T05:00:00+01:00 2023-06-16T18:00:00+01:00 GWh/d 121.5 220.8 342.3 Planned Outage
Prod Train 2 Outage
 21YGB-UKGASGRIDW 55WALDBOROUGH00H
SSE Hornsea Ltd
 A0001033U.UK
Aldbrough ALD_000000000000000000472_002 Active Planned Injection unavailability 2023-01-16T11:03:23+00:00 2023-05-07T05:00:00+01:00 2023-05-21T18:00:00+01:00 GWh/d 311.56 0 311.56 Planned Outage
Full Site Outage
 21YGB-UKGASGRIDW 55WALDBOROUGH00H
SSE Hornsea Ltd
 A0001033U.UK
Aldbrough ALD_000000000000000000472_001 Dismissed Planned Injection unavailability 2020-07-11T16:02:49+01:00 2023-05-07T05:00:00+01:00 2023-05-19T18:00:00+01:00 GWh/d 311.56 0 311.56 Planned Outage
Full Site Outage
 21YGB-UKGASGRIDW 55WALDBOROUGH00H
SSE Hornsea Ltd
 A0001033U.UK
Aldbrough ALD_000000000000000000473_002 Active Planned Withdrawal unavailability 2023-01-16T10:59:52+00:00 2023-05-07T05:00:00+01:00 2023-05-21T18:00:00+01:00 GWh/d 342.3 0 342.3 Planned Outage
Full Site Outage
 21YGB-UKGASGRIDW 55WALDBOROUGH00H
SSE Hornsea Ltd
 A0001033U.UK
Aldbrough ALD_000000000000000000473_001 Dismissed Planned Withdrawal unavailability 2020-07-11T16:06:51+01:00 2023-05-07T05:00:00+01:00 2023-05-19T18:00:00+01:00 GWh/d 342.3 0 342.3 Planned Outage
Full Site Outage
 21YGB-UKGASGRIDW 55WALDBOROUGH00H
SSE Hornsea Ltd
 A0001033U.UK
Aldbrough ALD_000000000000000000474_002 Active Planned Withdrawal unavailability 2023-01-16T10:53:07+00:00 2023-05-01T05:00:00+01:00 2023-05-22T18:00:00+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_000000000000000000474_001 Dismissed Planned Withdrawal unavailability 2020-07-11T16:09:58+01:00 2023-05-05T05:00:00+01:00 2023-05-19T18:00:00+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_000000000000000000720_002 Inactive Planned Withdrawal unavailability 2023-01-04T16:06:09+00:00 2023-01-04T08:00:00+00:00 2023-01-04T16:00:00+00:00 GWh/d 121.5 220.8 342.3 Planned Outage
Production train 1, valve maintenance.
 21YGB-UKGASGRIDW 55WALDBOROUGH00H
SSE Hornsea Ltd
 A0001033U.UK
Aldbrough ALD_000000000000000000720_001 Dismissed Planned Withdrawal unavailability 2023-01-03T13:31:11+00:00 2023-01-04T08:00:00+00:00 2023-01-04T16:00:00+00:00 GWh/d 121.5 220.8 342.3 Planned Outage
Production train 1, valve maintenance.
 21YGB-UKGASGRIDW 55WALDBOROUGH00H
SSE Hornsea Ltd
 A0001033U.UK
Aldbrough ALD_000000000000000000718_002 Inactive Planned Withdrawal unavailability 2022-12-30T16:53:25+00:00 2022-12-27T05:00:00+00:00 2022-12-30T16:54:00+00:00 GWh/d 121.5 220.8 342.3 Planned Outage
21YGB-UKGASGRIDW 55WALDBOROUGH00H
SSE Hornsea Ltd
 A0001033U.UK
Aldbrough ALD_000000000000000000718_001 Dismissed Planned Withdrawal unavailability 2022-12-23T12:27:31+00:00 2022-12-27T05:00:00+00:00 2022-12-30T18:00:00+00:00 GWh/d 121.5 220.8 342.3 Planned Outage
21YGB-UKGASGRIDW 55WALDBOROUGH00H
SSE Hornsea Ltd
 A0001033U.UK
Aldbrough ALD_000000000000000000719_002 Inactive Planned Withdrawal unavailability 2022-12-30T16:52:25+00:00 2022-12-27T05:00:00+00:00 2022-12-30T16:50:00+00:00 GWh/d 121.5 220.8 342.3 Planned Outage
21YGB-UKGASGRIDW 55WALDBOROUGH00H
SSE Hornsea Ltd
 A0001033U.UK
Aldbrough ALD_000000000000000000719_001 Dismissed Planned Withdrawal unavailability 2022-12-23T12:27:55+00:00 2022-12-27T05:00:00+00:00 2022-12-30T18:00:00+00:00 GWh/d 121.5 220.8 342.3 Planned Outage
21YGB-UKGASGRIDW 55WALDBOROUGH00H
SSE Hornsea Ltd
 A0001033U.UK
Atwick ATW_000000000000000000714_002 Dismissed Planned Withdrawal unavailability 2022-12-19T17:43:20+00:00 2022-12-27T05:00:00+00:00 2022-12-31T18:00:00+00:00 GWh/d 100 30 130 Planned Outage
21YGB-UKGASGRIDW 55WATWICK-SSE00J
SSE Hornsea Ltd
 A0001033U.UK
Atwick ATW_000000000000000000714_001 Dismissed Planned Withdrawal unavailability 2022-12-16T14:09:39+00:00 2022-12-27T05:00:00+00:00 2022-12-31T18:00:00+00:00 GWh/d 100 30 130 Planned Outage
21YGB-UKGASGRIDW 55WATWICK-SSE00J
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_000000000000000000704_002 Inactive Planned Injection unavailability 2022-11-19T09:18:39+00:00 2022-11-19T07:30:00+00:00 2022-11-19T09:15:00+00:00 GWh/d 311.56 0 311.56 Planned Outage
Compressor 2 drying run
 21YGB-UKGASGRIDW 55WALDBOROUGH00H
SSE Hornsea Ltd
 A0001033U.UK
Aldbrough ALD_000000000000000000704_001 Dismissed Planned Injection unavailability 2022-11-18T18:59:11+00:00 2022-11-19T07:30:00+00:00 2022-11-19T11:30:00+00:00 GWh/d 311.56 0 311.56 Planned Outage
Compressor 2 drying run
 21YGB-UKGASGRIDW 55WALDBOROUGH00H
SSE Hornsea Ltd
 A0001033U.UK
Aldbrough ALD_000000000000000000705_002 Inactive Planned Withdrawal unavailability 2022-11-19T09:18:15+00:00 2022-11-19T07:30:00+00:00 2022-11-19T09:15:00+00:00 GWh/d 342.3 0 342.3 Planned Outage
Compressor 2 drying run
 21YGB-UKGASGRIDW 55WALDBOROUGH00H
SSE Hornsea Ltd
 A0001033U.UK
Aldbrough ALD_000000000000000000705_001 Dismissed Planned Withdrawal unavailability 2022-11-18T19:00:18+00:00 2022-11-19T07:30:00+00:00 2022-11-19T11:30:00+00:00 GWh/d 342.3 0 342.3 Planned Outage
Compressor 2 drying run
 21YGB-UKGASGRIDW 55WALDBOROUGH00H
SSE Hornsea Ltd
 A0001033U.UK
Aldbrough ALD_000000000000000000471_007 Inactive Planned Injection unavailability 2022-11-19T08:32:32+00:00 2022-11-02T05:00:00+00:00 2022-11-19T07:30:00+00:00 GWh/d 111.02 200.54 311.56 Planned Outage
Comp 2 Outage. Further extended.
 21YGB-UKGASGRIDW 55WALDBOROUGH00H
SSE Hornsea Ltd
 A0001033U.UK
Aldbrough ALD_000000000000000000471_006 Dismissed Planned Injection unavailability 2022-11-18T18:57:30+00:00 2022-11-02T05:00:00+00:00 2022-11-19T07:30:00+00:00 GWh/d 111.02 200.54 311.56 Planned Outage
Comp 2 Outage. Further extended.
 21YGB-UKGASGRIDW 55WALDBOROUGH00H
SSE Hornsea Ltd
 A0001033U.UK
Aldbrough ALD_000000000000000000471_005 Dismissed Planned Injection unavailability 2022-11-18T13:52:57+00:00 2022-11-02T05:00:00+00:00 2022-11-19T18:00:00+00:00 GWh/d 111.02 200.54 311.56 Planned Outage
Comp 2 Outage. Further extended.
 21YGB-UKGASGRIDW 55WALDBOROUGH00H
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.