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Last update at: 2023-09-20T16:00:00+01:00

**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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Date of event: From date:
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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 >
Aldbrough ALD_000000000000000000811_002 Inactive Unplanned Injection unavailability 2023-09-20T15:38:25+01:00 2023-09-20T08:06:00+01:00 2023-09-20T15:38:00+01:00 GWh/d 111.02 200.54 311.56 Failure
Compressor 2
21YGB-UKGASGRIDW 55WALDBOROUGH00H
SSE Hornsea Ltd
 A0001033U.UK
Aldbrough ALD_000000000000000000811_001 Dismissed Unplanned Injection unavailability 2023-09-20T08:14:14+01:00 2023-09-20T08:06:00+01:00 2023-09-20T18:00:00+01:00 GWh/d 111.02 200.54 311.56 Failure
Compressor 2
21YGB-UKGASGRIDW 55WALDBOROUGH00H
SSE Hornsea Ltd
 A0001033U.UK
Atwick ATW_000000000000000000791_003 Active Planned Withdrawal unavailability 2023-09-20T09:12:42+01:00 2023-10-31T18:00:00+00:00 2024-06-01T05:00:00+01:00 GWh/d 30 100 130 Planned Outage
Phase 6 reduction
 21YGB-UKGASGRIDW 55WATWICK-SSE00J
SSE Hornsea Ltd
 A0001033U.UK
Atwick ATW_000000000000000000791_002 Dismissed Planned Withdrawal unavailability 2023-08-23T17:56:14+01:00 2023-09-30T18:00:00+01:00 2024-06-01T05:00:00+01:00 GWh/d 30 100 130 Planned Outage
Phase 6 reduction
 21YGB-UKGASGRIDW 55WATWICK-SSE00J
SSE Hornsea Ltd
 A0001033U.UK
Atwick ATW_000000000000000000791_001 Dismissed Planned Withdrawal unavailability 2023-08-15T07:20:58+01:00 2023-08-31T18:00:00+01:00 2024-06-01T05:00:00+01:00 GWh/d 30 100 130 Planned Outage
Phase 6 reduction
 21YGB-UKGASGRIDW 55WATWICK-SSE00J
SSE Hornsea Ltd
 A0001033U.UK
Aldbrough ALD_000000000000000000799_002 Inactive Planned Storage unavailability 2023-09-17T20:02:32+01:00 2023-09-14T05:00:00+01:00 2023-09-17T19:00:00+01:00 TWh 0.3518 2.8103642 3.1621642 Planned Outage
ALD 5 Wellhead Maintenance.
 21YGB-UKGASGRIDW 55WALDBOROUGH00H
SSE Hornsea Ltd
 A0001033U.UK
Aldbrough ALD_000000000000000000799_001 Dismissed Planned Storage unavailability 2023-08-30T15:54:37+01:00 2023-09-14T05:00:00+01:00 2023-09-17T19:00:00+01:00 TWh 0.3518 2.8103642 3.1621642 Planned Outage
ALD 5 Wellhead Maintenance.
 21YGB-UKGASGRIDW 55WALDBOROUGH00H
SSE Hornsea Ltd
 A0001033U.UK
Aldbrough ALD_000000000000000000808_003 Inactive Unplanned Withdrawal unavailability 2023-09-17T16:32:32+01:00 2023-09-09T11:55:00+01:00 2023-09-17T15:30:00+01:00 GWh/d 121.5 220.8 342.3 Failure
Train 1 HIPPS
 21YGB-UKGASGRIDW 55WALDBOROUGH00H
SSE Hornsea Ltd
 A0001033U.UK
Aldbrough ALD_000000000000000000808_002 Dismissed Unplanned Withdrawal unavailability 2023-09-17T15:17:46+01:00 2023-09-09T11:55:00+01:00 2023-09-17T15:30:00+01:00 GWh/d 121.5 220.8 342.3 Failure
Train 1 HIPPS
 21YGB-UKGASGRIDW 55WALDBOROUGH00H
SSE Hornsea Ltd
 A0001033U.UK
Aldbrough ALD_000000000000000000808_001 Dismissed Unplanned Withdrawal unavailability 2023-09-09T11:53:44+01:00 2023-09-09T11:55:00+01:00 2023-10-15T17:00:00+01:00 GWh/d 121.5 220.8 342.3 Failure
Train 1 HIPPS
 21YGB-UKGASGRIDW 55WALDBOROUGH00H
SSE Hornsea Ltd
 A0001033U.UK
Atwick ATW_000000000000000000810_002 Inactive Unplanned Withdrawal unavailability 2023-09-15T12:34:45+01:00 2023-09-15T09:47:00+01:00 2023-09-15T12:31:00+01:00 GWh/d 130 0 130 Failure
21YGB-UKGASGRIDW 55WATWICK-SSE00J
SSE Hornsea Ltd
 A0001033U.UK
Atwick ATW_000000000000000000810_001 Dismissed Unplanned Withdrawal unavailability 2023-09-15T09:51:53+01:00 2023-09-15T09:47:00+01:00 2023-09-15T16:00:00+01:00 GWh/d 130 0 130 Failure
21YGB-UKGASGRIDW 55WATWICK-SSE00J
SSE Hornsea Ltd
 A0001033U.UK
Atwick ATW_000000000000000000780_006 Active Planned Withdrawal unavailability 2023-09-15T09:17:54+01:00 2023-07-17T05:00:00+01:00 2023-10-31T18:00:00+00:00 GWh/d 60 70 130 Planned Outage
Vortisep / Phase 6
21YGB-UKGASGRIDW 55WATWICK-SSE00J
SSE Hornsea Ltd
 A0001033U.UK
Atwick ATW_000000000000000000780_005 Dismissed Planned Withdrawal unavailability 2023-08-23T17:47:48+01:00 2023-07-17T05:00:00+01:00 2023-09-30T18:00:00+01:00 GWh/d 60 70 130 Planned Outage
Vortisep / Phase 6
21YGB-UKGASGRIDW 55WATWICK-SSE00J
SSE Hornsea Ltd
 A0001033U.UK
Atwick ATW_000000000000000000780_004 Dismissed Planned Withdrawal unavailability 2023-08-15T07:17:26+01:00 2023-07-17T05:00:00+01:00 2023-08-31T18:00:00+01:00 GWh/d 60 70 130 Planned Outage
Vortisep / Phase 6
21YGB-UKGASGRIDW 55WATWICK-SSE00J
SSE Hornsea Ltd
 A0001033U.UK
Atwick ATW_000000000000000000780_003 Dismissed Planned Withdrawal unavailability 2023-08-10T07:56:01+01:00 2023-07-17T05:00:00+01:00 2023-08-31T18:00:00+01:00 GWh/d 30 100 130 Planned Outage
Vortisep
 21YGB-UKGASGRIDW 55WATWICK-SSE00J
SSE Hornsea Ltd
 A0001033U.UK
Atwick ATW_000000000000000000780_002 Dismissed Planned Withdrawal unavailability 2023-07-14T13:24:10+01:00 2023-07-17T05:00:00+01:00 2023-08-14T18:00:00+01:00 GWh/d 30 100 130 Planned Outage
Vortisep
 21YGB-UKGASGRIDW 55WATWICK-SSE00J
SSE Hornsea Ltd
 A0001033U.UK
Atwick ATW_000000000000000000780_001 Dismissed Planned Withdrawal unavailability 2023-07-10T10:17:37+01:00 2023-07-17T05:00:00+01:00 2023-07-24T18:00:00+01:00 GWh/d 30 100 130 Planned Outage
Vortisep
 21YGB-UKGASGRIDW 55WATWICK-SSE00J
SSE Hornsea Ltd
 A0001033U.UK
Aldbrough ALD_000000000000000000809_002 Inactive Unplanned Storage unavailability 2023-09-14T19:02:32+01:00 2023-09-14T10:00:00+01:00 2023-09-14T18:00:00+01:00 TWh 0.4123 2.7498642 3.1621642 Planned Outage
Ald 3 WHM + RTS
 21YGB-UKGASGRIDW 55WALDBOROUGH00H
SSE Hornsea Ltd
 A0001033U.UK
Aldbrough ALD_000000000000000000809_001 Dismissed Unplanned Storage unavailability 2023-09-14T09:01:11+01:00 2023-09-14T10:00:00+01:00 2023-09-14T18:00:00+01:00 TWh 0.4123 2.7498642 3.1621642 Planned Outage
Ald 3 WHM + RTS
 21YGB-UKGASGRIDW 55WALDBOROUGH00H
SSE Hornsea Ltd
 A0001033U.UK
Aldbrough ALD_000000000000000000772_005 Inactive Planned Storage unavailability 2023-09-14T06:02:32+01:00 2023-09-12T06:00:00+01:00 2023-09-14T05:00:00+01:00 TWh 0.4123 2.7498642 3.1621642 Planned Outage
Loss of Ald 3 WHM
 21YGB-UKGASGRIDW 55WALDBOROUGH00H
SSE Hornsea Ltd
 A0001033U.UK
Aldbrough ALD_000000000000000000772_004 Dismissed Planned Storage unavailability 2023-09-13T09:51:24+01:00 2023-09-12T06:00:00+01:00 2023-09-14T05:00:00+01:00 TWh 0.4123 2.7498642 3.1621642 Planned Outage
Loss of Ald 3 WHM
 21YGB-UKGASGRIDW 55WALDBOROUGH00H
SSE Hornsea Ltd
 A0001033U.UK
Aldbrough ALD_000000000000000000772_003 Dismissed Planned Storage unavailability 2023-08-30T15:28:22+01:00 2023-09-12T06:00:00+01:00 2023-09-22T18:00:00+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_000000000000000000772_002 Dismissed Planned Storage unavailability 2023-08-23T09:12:19+01:00 2023-09-10T06:00:00+01:00 2023-09-22T18:00:00+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_000000000000000000772_001 Dismissed Planned Storage unavailability 2023-07-05T15:27:29+01:00 2023-09-12T06:00:00+01:00 2023-09-24T18:00:00+01:00 TWh 0.412 2.8872861 3.2992861 Planned Outage
Loss of Ald 3
 21YGB-UKGASGRIDW 55WALDBOROUGH00H
SSE Hornsea Ltd
 A0001033U.UK
Atwick ATW_000000000000000000805_002 Inactive Planned Storage unavailability 2023-09-12T10:32:11+01:00 2023-09-11T08:00:00+01:00 2023-09-12T18:00:00+01:00 TWh 0.238280125 3.230364575 3.4686447 Planned Outage
Cavity 2
21YGB-UKGASGRIDW 55WATWICK-SSE00J
SSE Hornsea Ltd
 A0001033U.UK
Atwick ATW_000000000000000000805_001 Dismissed Planned Storage unavailability 2023-09-07T13:34:25+01:00 2023-09-11T08:00:00+01:00 2023-09-12T18:00:00+01:00 TWh 0.238280125 3.230364575 3.4686447 Planned Outage
Cavity 2
21YGB-UKGASGRIDW 55WATWICK-SSE00J
SSE Hornsea Ltd
 A0001033U.UK
Aldbrough ALD_000000000000000000807_003 Inactive Unplanned Withdrawal unavailability 2023-09-09T11:43:54+01:00 2023-09-08T19:20:00+01:00 2023-09-09T11:45:00+01:00 GWh/d 342.3 0 342.3 Failure
HIPPS Failure
 21YGB-UKGASGRIDW 55WALDBOROUGH00H
SSE Hornsea Ltd
 A0001033U.UK
Aldbrough ALD_000000000000000000807_002 Dismissed Unplanned Withdrawal unavailability 2023-09-08T22:03:47+01:00 2023-09-08T19:20:00+01:00 2023-09-09T17:00:00+01:00 GWh/d 342.3 0 342.3 Failure
HIPPS Failure
 21YGB-UKGASGRIDW 55WALDBOROUGH00H
SSE Hornsea Ltd
 A0001033U.UK
Aldbrough ALD_000000000000000000807_001 Dismissed Unplanned Withdrawal unavailability 2023-09-08T20:18:24+01:00 2023-09-08T19:20:00+01:00 2023-09-09T05:00:00+01:00 GWh/d 342.3 0 342.3 Failure
HIPPS Failure
 21YGB-UKGASGRIDW 55WALDBOROUGH00H
SSE Hornsea Ltd
 A0001033U.UK
Aldbrough ALD_000000000000000000806_003 Inactive Unplanned Injection unavailability 2023-09-09T11:43:38+01:00 2023-09-08T19:20:00+01:00 2023-09-09T11:45:00+01:00 GWh/d 311.56 0 311.56 Failure
HIPPS Failure
 21YGB-UKGASGRIDW 55WALDBOROUGH00H
SSE Hornsea Ltd
 A0001033U.UK
Aldbrough ALD_000000000000000000806_002 Dismissed Unplanned Injection unavailability 2023-09-08T22:03:00+01:00 2023-09-08T19:20:00+01:00 2023-09-09T17:00:00+01:00 GWh/d 311.56 0 311.56 Failure
HIPPS Failure
 21YGB-UKGASGRIDW 55WALDBOROUGH00H
SSE Hornsea Ltd
 A0001033U.UK
Aldbrough ALD_000000000000000000806_001 Dismissed Unplanned Injection unavailability 2023-09-08T20:17:03+01:00 2023-09-08T19:20:00+01:00 2023-09-09T05:00:00+01:00 GWh/d 311.56 0 311.56 Failure
HIPPS Failure
 21YGB-UKGASGRIDW 55WALDBOROUGH00H
SSE Hornsea Ltd
 A0001033U.UK
Atwick ATW_000000000000000000796_003 Inactive Unplanned Storage unavailability 2023-09-06T13:31:43+01:00 2023-08-25T08:00:00+01:00 2023-09-06T13:32:00+01:00 TWh 0.317415066 3.151229634 3.4686447 Failure
Cavity 7
 21YGB-UKGASGRIDW 55WATWICK-SSE00J
SSE Hornsea Ltd
 A0001033U.UK
Atwick ATW_000000000000000000796_002 Dismissed Unplanned Storage unavailability 2023-08-31T09:36:10+01:00 2023-08-25T08:00:00+01:00 2023-09-06T18:00:00+01:00 TWh 0.317415066 3.151229634 3.4686447 Failure
Cavity 7
 21YGB-UKGASGRIDW 55WATWICK-SSE00J
SSE Hornsea Ltd
 A0001033U.UK
Atwick ATW_000000000000000000796_001 Dismissed Unplanned Storage unavailability 2023-08-25T08:13:30+01:00 2023-08-25T08:00:00+01:00 2023-08-31T18:00:00+01:00 TWh 0.317415066 3.151229634 3.4686447 Failure
Cavity 7
 21YGB-UKGASGRIDW 55WATWICK-SSE00J
SSE Hornsea Ltd
 A0001033U.UK
Atwick ATW_000000000000000000786_004 Inactive Planned Storage unavailability 2023-09-05T16:33:08+01:00 2023-08-25T05:00:00+01:00 2023-09-05T16:32:00+01:00 TWh 0.390799835 3.077844865 3.4686447 Planned Outage
Cavity 3 Intervention works
 21YGB-UKGASGRIDW 55WATWICK-SSE00J
SSE Hornsea Ltd
 A0001033U.UK
Atwick ATW_000000000000000000786_003 Dismissed Planned Storage unavailability 2023-08-17T14:47:49+01:00 2023-08-25T05:00:00+01:00 2023-09-09T18:00:00+01:00 TWh 0.390799835 3.077844865 3.4686447 Planned Outage
Cavity 3 Intervention works
 21YGB-UKGASGRIDW 55WATWICK-SSE00J
SSE Hornsea Ltd
 A0001033U.UK
Atwick ATW_000000000000000000786_002 Dismissed Planned Storage unavailability 2023-08-17T14:02:38+01:00 2023-08-25T05:00:00+01:00 2023-09-05T18:00:00+01:00 TWh 0.390799835 3.077844865 3.4686447 Planned Outage
Cavity 3 Intervention works
 21YGB-UKGASGRIDW 55WATWICK-SSE00J
SSE Hornsea Ltd
 A0001033U.UK
Atwick ATW_000000000000000000786_001 Dismissed Planned Storage unavailability 2023-07-17T12:12:54+01:00 2023-09-26T05:00:00+01:00 2023-10-24T18:00:00+01:00 TWh 0.390799835 3.077844865 3.4686447 Planned Outage
Cavity 3 Intervention works
 21YGB-UKGASGRIDW 55WATWICK-SSE00J
SSE Hornsea Ltd
 A0001033U.UK
Atwick ATW_000000000000000000804_001 Active Planned Withdrawal unavailability 2023-09-05T09:58:44+01:00 2023-10-10T08:00:00+01:00 2023-10-10T17:00:00+01:00 GWh/d 130 0 130 Planned Outage
Withdrawal - USM Validations(Day 2)
 21YGB-UKGASGRIDW 55WATWICK-SSE00J
SSE Hornsea Ltd
 A0001033U.UK
Atwick ATW_000000000000000000803_001 Active Planned Injection unavailability 2023-09-05T09:57:41+01:00 2023-10-10T08:00:00+01:00 2023-10-10T17:00:00+01:00 GWh/d 30 0 30 Planned Outage
Injection - USM Validations(Day 2)
 21YGB-UKGASGRIDW 55WATWICK-SSE00J
SSE Hornsea Ltd
 A0001033U.UK
Atwick ATW_000000000000000000802_001 Active Planned Withdrawal unavailability 2023-09-05T09:55:24+01:00 2023-10-09T08:00:00+01:00 2023-10-09T17:00:00+01:00 GWh/d 130 0 130 Planned Outage
Withdrawal - USM Validations(Day 1)
 21YGB-UKGASGRIDW 55WATWICK-SSE00J
SSE Hornsea Ltd
 A0001033U.UK
Atwick ATW_000000000000000000801_001 Active Planned Injection unavailability 2023-09-05T09:53:56+01:00 2023-10-09T08:00:00+01:00 2023-10-09T17:00:00+01:00 GWh/d 30 0 30 Planned Outage
Injection - USM Validations(Day 1)
 21YGB-UKGASGRIDW 55WATWICK-SSE00J
SSE Hornsea Ltd
 A0001033U.UK
Atwick ATW_000000000000000000800_001 Active Planned Withdrawal unavailability 2023-09-05T09:51:43+01:00 2023-09-27T08:00:00+01:00 2023-09-27T17:00:00+01:00 GWh/d 130 0 130 Planned Outage
Gas Analytical Validations
 21YGB-UKGASGRIDW 55WATWICK-SSE00J
SSE Hornsea Ltd
 A0001033U.UK
Atwick ATW_000000000000000000787_002 Inactive Planned Withdrawal unavailability 2023-08-30T16:30:45+01:00 2023-08-30T08:00:00+01:00 2023-08-30T16:15:00+01:00 GWh/d 130 0 130 Planned Outage
Chromatograph works
 21YGB-UKGASGRIDW 55WATWICK-SSE00J
SSE Hornsea Ltd
 A0001033U.UK
Atwick ATW_000000000000000000787_001 Dismissed Planned Withdrawal unavailability 2023-07-21T07:53:47+01:00 2023-08-30T08:00:00+01:00 2023-09-01T18:00:00+01:00 GWh/d 130 0 130 Planned Outage
Chromatograph works
 21YGB-UKGASGRIDW 55WATWICK-SSE00J
SSE Hornsea Ltd
 A0001033U.UK
Atwick ATW_000000000000000000798_002 Inactive Planned Injection unavailability 2023-08-30T16:27:14+01:00 2023-08-30T09:50:00+01:00 2023-08-30T16:15:00+01:00 GWh/d 0 30 30 Planned Outage
ESD testing
 21YGB-UKGASGRIDW 55WATWICK-SSE00J
SSE Hornsea Ltd
 A0001033U.UK
Atwick ATW_000000000000000000798_001 Dismissed Planned Injection unavailability 2023-08-30T09:48:05+01:00 2023-08-30T09:50:00+01:00 2023-08-30T18:00:00+01:00 GWh/d 0 30 30 Planned Outage
ESD testing
 21YGB-UKGASGRIDW 55WATWICK-SSE00J
SSE Hornsea Ltd
 A0001033U.UK
Atwick ATW_000000000000000000790_002 Dismissed Planned Injection unavailability 2023-08-30T09:46:25+01:00 2023-08-31T08:00:00+01:00 2023-08-31T16:00:00+01:00 GWh/d 30 0 30 Planned Outage
ESD Testing
 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.