Last update at: 2021-04-15T17:00:00+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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	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
< 2 3 4 5 6 >
Aldbrough	ALD_000000000000000000398_001	Dismissed	Unplanned	Injection unavailability	2019-10-26T12:45:35+01:00	2019-10-26T16:30:00+01:00	2019-10-26T18:00:00+01:00	GWh/d	200.54	111.02	311.56	Failure	Deisolation	21YGB-UKGASGRIDW	55WALDBOROUGH00H	SSE Hornsea Ltd	A0001033U.UK
Aldbrough	ALD_000000000000000000397_002	Inactive	Unplanned	Injection unavailability	2019-10-26T11:30:22+01:00	2019-10-26T08:30:00+01:00	2019-10-26T11:26:00+01:00	GWh/d	111.02	200.54	311.56	Failure		21YGB-UKGASGRIDW	55WALDBOROUGH00H	SSE Hornsea Ltd	A0001033U.UK
Aldbrough	ALD_000000000000000000397_001	Dismissed	Unplanned	Injection unavailability	2019-10-26T08:23:53+01:00	2019-10-26T08:30:00+01:00	2019-10-26T18:00:00+01:00	GWh/d	111.02	200.54	311.56	Failure		21YGB-UKGASGRIDW	55WALDBOROUGH00H	SSE Hornsea Ltd	A0001033U.UK
Atwick	ATW_000000000000000000396_003	Inactive	Unplanned	Storage unavailability	2019-10-24T13:52:58+01:00	2019-10-22T15:50:00+01:00	2019-10-24T13:52:00+01:00	TWh	0.35363285	2.81036665	3.1639995	Failure	unplanned	21YGB-UKGASGRIDW	55WATWICK-SSE00J	SSE Hornsea Ltd	A0001033U.UK
Atwick	ATW_000000000000000000396_002	Dismissed	Unplanned	Storage unavailability	2019-10-23T15:37:40+01:00	2019-10-22T15:50:00+01:00	2019-10-24T16:00:00+01:00	TWh	0.35363285	2.81036665	3.1639995	Failure	unplanned	21YGB-UKGASGRIDW	55WATWICK-SSE00J	SSE Hornsea Ltd	A0001033U.UK
Atwick	ATW_000000000000000000396_001	Dismissed	Unplanned	Storage unavailability	2019-10-22T15:56:21+01:00	2019-10-22T15:50:00+01:00	2019-10-23T16:00:00+01:00	TWh	0.35363285	2.81036665	3.1639995	Failure	unplanned	21YGB-UKGASGRIDW	55WATWICK-SSE00J	SSE Hornsea Ltd	A0001033U.UK
Atwick	ATW_000000000000000000395_003	Inactive	Unplanned	Storage unavailability	2019-10-22T15:47:17+01:00	2019-10-19T06:00:00+01:00	2019-10-22T15:45:00+01:00	TWh	0.63542	2.5285795	3.1639995	Failure	unplanned	21YGB-UKGASGRIDW	55WATWICK-SSE00J	SSE Hornsea Ltd	A0001033U.UK
Atwick	ATW_000000000000000000395_002	Dismissed	Unplanned	Storage unavailability	2019-10-21T15:22:30+01:00	2019-10-19T06:00:00+01:00	2019-10-23T16:00:00+01:00	TWh	0.63542	2.5285795	3.1639995	Failure	unplanned	21YGB-UKGASGRIDW	55WATWICK-SSE00J	SSE Hornsea Ltd	A0001033U.UK
Atwick	ATW_000000000000000000395_001	Dismissed	Unplanned	Storage unavailability	2019-10-19T06:02:35+01:00	2019-10-19T06:00:00+01:00	2019-10-21T16:00:00+01:00	TWh	0.63542	2.5285795	3.1639995	Failure	unplanned	21YGB-UKGASGRIDW	55WATWICK-SSE00J	SSE Hornsea Ltd	A0001033U.UK
Atwick	ATW_000000000000000000394_002	Dismissed	Unplanned	Withdrawal unavailability	2019-10-18T17:47:17+01:00	2019-10-17T23:08:00+01:00	2019-10-18T17:45:00+01:00	GWh/d	30	100	130	Failure		21YGB-UKGASGRIDW	55WATWICK-SSE00J	SSE Hornsea Ltd	A0001033U.UK
Atwick	ATW_000000000000000000394_001	Dismissed	Unplanned	Withdrawal unavailability	2019-10-17T23:08:35+01:00	2019-10-17T23:08:00+01:00	2019-10-19T18:00:00+01:00	GWh/d	30	100	130	Failure		21YGB-UKGASGRIDW	55WATWICK-SSE00J	SSE Hornsea Ltd	A0001033U.UK
Atwick	ATW_000000000000000000393_002	Inactive	Unplanned	Storage unavailability	2019-10-16T15:41:39+01:00	2019-10-15T07:44:00+01:00	2019-10-16T15:40:00+01:00	TWh	1.14378	2.0202195	3.1639995	Failure		21YGB-UKGASGRIDW	55WATWICK-SSE00J	SSE Hornsea Ltd	A0001033U.UK
Atwick	ATW_000000000000000000393_001	Dismissed	Unplanned	Storage unavailability	2019-10-15T07:45:53+01:00	2019-10-15T07:44:00+01:00	2019-10-17T18:00:00+01:00	TWh	1.14378	2.0202195	3.1639995	Failure		21YGB-UKGASGRIDW	55WATWICK-SSE00J	SSE Hornsea Ltd	A0001033U.UK
Aldbrough	ALD_000000000000000000391_002	Inactive	Unplanned	Injection unavailability	2019-10-11T22:11:04+01:00	2019-10-11T20:20:00+01:00	2019-10-11T22:10:00+01:00	GWh/d	111.02	200.54	311.56	Failure		21YGB-UKGASGRIDW	55WALDBOROUGH00H	SSE Hornsea Ltd	A0001033U.UK
Aldbrough	ALD_000000000000000000391_001	Dismissed	Unplanned	Injection unavailability	2019-10-11T20:37:26+01:00	2019-10-11T20:20:00+01:00	2019-10-14T18:00:00+01:00	GWh/d	111.02	200.54	311.56	Failure		21YGB-UKGASGRIDW	55WALDBOROUGH00H	SSE Hornsea Ltd	A0001033U.UK
Atwick	ATW_000000000000000000387_002	Inactive	Unplanned	Storage unavailability	2019-10-09T13:21:19+01:00	2019-10-06T09:43:00+01:00	2019-10-09T13:20:00+01:00	TWh	1.03227	2.1317295	3.1639995	Failure		21YGB-UKGASGRIDW	55WATWICK-SSE00J	SSE Hornsea Ltd	A0001033U.UK
Atwick	ATW_000000000000000000387_001	Dismissed	Unplanned	Storage unavailability	2019-10-06T09:45:22+01:00	2019-10-06T09:43:00+01:00	2019-10-10T18:00:00+01:00	TWh	1.03227	2.1317295	3.1639995	Failure		21YGB-UKGASGRIDW	55WATWICK-SSE00J	SSE Hornsea Ltd	A0001033U.UK
Atwick	ATW_000000000000000000388_002	Inactive	Unplanned	Storage unavailability	2019-10-08T15:59:43+01:00	2019-10-07T09:40:00+01:00	2019-10-08T16:00:00+01:00	TWh	1.24694	1.9170595	3.1639995	Failure	unplanned	21YGB-UKGASGRIDW	55WATWICK-SSE00J	SSE Hornsea Ltd	A0001033U.UK
Atwick	ATW_000000000000000000388_001	Dismissed	Unplanned	Storage unavailability	2019-10-07T09:43:40+01:00	2019-10-07T09:40:00+01:00	2019-10-08T16:00:00+01:00	TWh	1.24694	1.9170595	3.1639995	Failure	unplanned	21YGB-UKGASGRIDW	55WATWICK-SSE00J	SSE Hornsea Ltd	A0001033U.UK
Atwick	ATW_000000000000000000386_002	Inactive	Unplanned	Withdrawal unavailability	2019-10-05T10:44:00+01:00	2019-10-04T23:08:00+01:00	2019-10-05T10:42:00+01:00	GWh/d	100	0	130	Failure	unplanned	21YGB-UKGASGRIDW	55WATWICK-SSE00J	SSE Hornsea Ltd	A0001033U.UK
Atwick	ATW_000000000000000000386_001	Dismissed	Unplanned	Withdrawal unavailability	2019-10-04T23:19:16+01:00	2019-10-04T23:08:00+01:00	2019-10-07T16:00:00+01:00	GWh/d	100	0	130	Failure	unplanned	21YGB-UKGASGRIDW	55WATWICK-SSE00J	SSE Hornsea Ltd	A0001033U.UK
Aldbrough	ALD_000000000000000000384_002	Inactive	Unplanned	Injection unavailability	2019-09-23T15:38:02+01:00	2019-09-22T21:51:00+01:00	2019-09-23T15:15:00+01:00	GWh/d	111.02	200.54	311.56	Failure		21YGB-UKGASGRIDW	55WALDBOROUGH00H	SSE Hornsea Ltd	A0001033U.UK
Aldbrough	ALD_000000000000000000384_001	Dismissed	Unplanned	Injection unavailability	2019-09-22T23:14:33+01:00	2019-09-22T21:51:00+01:00	2019-09-23T16:00:00+01:00	GWh/d	111.02	200.54	311.56	Failure		21YGB-UKGASGRIDW	55WALDBOROUGH00H	SSE Hornsea Ltd	A0001033U.UK
Aldbrough	ALD_000000000000000000382_002	Dismissed	Unplanned	Injection unavailability	2019-09-15T05:57:49+01:00	2019-09-14T21:54:00+01:00	2019-09-15T06:00:00+01:00	GWh/d	111.02	200.54	311.56	Failure		21YGB-UKGASGRIDW	55WALDBOROUGH00H	SSE Hornsea Ltd	A0001033U.UK
Aldbrough	ALD_000000000000000000382_001	Dismissed	Unplanned	Injection unavailability	2019-09-14T21:55:17+01:00	2019-09-14T21:54:00+01:00	2019-09-15T12:00:00+01:00	GWh/d	111.02	200.54	311.56	Failure		21YGB-UKGASGRIDW	55WALDBOROUGH00H	SSE Hornsea Ltd	A0001033U.UK
Atwick	ATW_000000000000000000381_003	Inactive	Unplanned	Storage unavailability	2019-09-13T15:40:11+01:00	2019-09-10T14:15:00+01:00	2019-09-13T15:30:00+01:00	TWh	0.80463	2.3593695	3.1639995	Failure	unplanned	21YGB-UKGASGRIDW	55WATWICK-SSE00J	SSE Hornsea Ltd	A0001033U.UK
Atwick	ATW_000000000000000000381_002	Dismissed	Unplanned	Storage unavailability	2019-09-11T10:44:23+01:00	2019-09-10T14:15:00+01:00	2019-09-13T16:00:00+01:00	TWh	0.80463	2.3593695	3.1639995	Failure	unplanned	21YGB-UKGASGRIDW	55WATWICK-SSE00J	SSE Hornsea Ltd	A0001033U.UK
Atwick	ATW_000000000000000000381_001	Dismissed	Unplanned	Storage unavailability	2019-09-10T14:19:15+01:00	2019-09-10T14:15:00+01:00	2019-09-11T16:00:00+01:00	TWh	0.80463	2.3593695	3.1639995	Failure	unplanned	21YGB-UKGASGRIDW	55WATWICK-SSE00J	SSE Hornsea Ltd	A0001033U.UK
Atwick	ATW_000000000000000000380_002	Inactive	Unplanned	Withdrawal unavailability	2019-09-09T14:34:30+01:00	2019-09-09T09:30:00+01:00	2019-09-09T14:30:00+01:00	GWh/d	65	65	130	Failure		21YGB-UKGASGRIDW	55WATWICK-SSE00J	SSE Hornsea Ltd	A0001033U.UK
Atwick	ATW_000000000000000000380_001	Dismissed	Unplanned	Withdrawal unavailability	2019-09-09T09:59:19+01:00	2019-09-09T09:30:00+01:00	2019-09-09T16:00:00+01:00	GWh/d	65	65	130	Failure		21YGB-UKGASGRIDW	55WATWICK-SSE00J	SSE Hornsea Ltd	A0001033U.UK
Aldbrough	ALD_000000000000000000379_002	Inactive	Unplanned	Injection unavailability	2019-09-03T16:22:07+01:00	2019-08-30T20:54:00+01:00	2019-09-03T16:21:00+01:00	GWh/d	111.02	200.54	311.56	Failure		21YGB-UKGASGRIDW	55WALDBOROUGH00H	SSE Hornsea Ltd	A0001033U.UK
Aldbrough	ALD_000000000000000000379_001	Dismissed	Unplanned	Injection unavailability	2019-08-30T20:56:32+01:00	2019-08-30T20:54:00+01:00	2019-09-03T18:00:00+01:00	GWh/d	111.02	200.54	311.56	Failure		21YGB-UKGASGRIDW	55WALDBOROUGH00H	SSE Hornsea Ltd	A0001033U.UK
Aldbrough	ALD_000000000000000000376_002	Inactive	Unplanned	Storage unavailability	2019-08-22T09:57:58+01:00	2019-08-18T10:00:00+01:00	2019-08-22T10:00:00+01:00	TWh	0.3652	1.78724821	2.15244821	Failure		21YGB-UKGASGRIDW	55WALDBOROUGH00H	SSE Hornsea Ltd	A0001033U.UK
Aldbrough	ALD_000000000000000000376_001	Dismissed	Unplanned	Storage unavailability	2019-08-18T09:52:30+01:00	2019-08-18T10:00:00+01:00	2019-08-22T19:00:00+01:00	TWh	0.3652	1.78724821	2.15244821	Failure		21YGB-UKGASGRIDW	55WALDBOROUGH00H	SSE Hornsea Ltd	A0001033U.UK
Atwick	ATW_000000000000000000373_003	Inactive	Unplanned	Withdrawal unavailability	2019-08-09T13:42:41+01:00	2019-08-08T22:26:00+01:00	2019-08-09T13:50:00+01:00	GWh/d	70	60	130	Failure		21YGB-UKGASGRIDW	55WATWICK-SSE00J	SSE Hornsea Ltd	A0001033U.UK
Atwick	ATW_000000000000000000373_002	Dismissed	Unplanned	Withdrawal unavailability	2019-08-08T22:59:17+01:00	2019-08-08T22:26:00+01:00	2019-08-09T18:00:00+01:00	GWh/d	70	60	130	Failure		21YGB-UKGASGRIDW	55WATWICK-SSE00J	SSE Hornsea Ltd	A0001033U.UK
Atwick	ATW_000000000000000000373_001	Dismissed	Unplanned	Withdrawal unavailability	2019-08-08T22:28:04+01:00	2019-08-08T22:26:00+01:00	2019-08-09T18:00:00+01:00	GWh/d	130	0	130	Failure		21YGB-UKGASGRIDW	55WATWICK-SSE00J	SSE Hornsea Ltd	A0001033U.UK
Atwick	ATW_000000000000000000372_004	Inactive	Unplanned	Withdrawal unavailability	2019-08-08T16:15:12+01:00	2019-07-27T16:43:00+01:00	2019-08-08T16:05:00+01:00	GWh/d	70	0	130	Failure		21YGB-UKGASGRIDW	55WATWICK-SSE00J	SSE Hornsea Ltd	A0001033U.UK
Atwick	ATW_000000000000000000372_003	Dismissed	Unplanned	Withdrawal unavailability	2019-08-07T15:08:39+01:00	2019-07-27T16:43:00+01:00	2019-08-08T18:00:00+01:00	GWh/d	70	0	130	Failure		21YGB-UKGASGRIDW	55WATWICK-SSE00J	SSE Hornsea Ltd	A0001033U.UK
Atwick	ATW_000000000000000000372_002	Dismissed	Unplanned	Withdrawal unavailability	2019-07-31T08:14:52+01:00	2019-07-27T16:43:00+01:00	2019-08-07T18:00:00+01:00	GWh/d	70	0	130	Failure		21YGB-UKGASGRIDW	55WATWICK-SSE00J	SSE Hornsea Ltd	A0001033U.UK
Atwick	ATW_000000000000000000372_001	Dismissed	Unplanned	Withdrawal unavailability	2019-07-27T16:46:08+01:00	2019-07-27T16:43:00+01:00	2019-07-31T18:00:00+01:00	GWh/d	70	0	130	Failure		21YGB-UKGASGRIDW	55WATWICK-SSE00J	SSE Hornsea Ltd	A0001033U.UK
Aldbrough	ALD_000000000000000000370_002	Inactive	Unplanned	Injection unavailability	2019-07-23T10:40:31+01:00	2019-07-23T07:06:00+01:00	2019-07-23T10:40:00+01:00	GWh/d	311.56	0	311.56	Failure		21YGB-UKGASGRIDW	55WALDBOROUGH00H	SSE Hornsea Ltd	A0001033U.UK
Aldbrough	ALD_000000000000000000370_001	Dismissed	Unplanned	Injection unavailability	2019-07-23T07:07:03+01:00	2019-07-23T07:06:00+01:00	2019-07-23T12:00:00+01:00	GWh/d	311.56	0	311.56	Failure		21YGB-UKGASGRIDW	55WALDBOROUGH00H	SSE Hornsea Ltd	A0001033U.UK
Aldbrough	ALD_000000000000000000369_002	Inactive	Unplanned	Storage unavailability	2019-07-23T10:40:01+01:00	2019-07-23T07:04:00+01:00	2019-07-23T10:39:00+01:00	TWh	2.15	0.00244821	2.15244821	Failure		21YGB-UKGASGRIDW	55WALDBOROUGH00H	SSE Hornsea Ltd	A0001033U.UK
Aldbrough	ALD_000000000000000000369_001	Dismissed	Unplanned	Storage unavailability	2019-07-23T07:06:06+01:00	2019-07-23T07:04:00+01:00	2019-07-23T12:00:00+01:00	TWh	2.15	0.00244821	2.15244821	Failure		21YGB-UKGASGRIDW	55WALDBOROUGH00H	SSE Hornsea Ltd	A0001033U.UK
Aldbrough	ALD_000000000000000000371_002	Inactive	Unplanned	Withdrawal unavailability	2019-07-23T10:39:36+01:00	2019-07-23T07:07:00+01:00	2019-07-23T10:39:00+01:00	GWh/d	342.3	0	342.3	Failure		21YGB-UKGASGRIDW	55WALDBOROUGH00H	SSE Hornsea Ltd	A0001033U.UK
Aldbrough	ALD_000000000000000000371_001	Dismissed	Unplanned	Withdrawal unavailability	2019-07-23T07:09:10+01:00	2019-07-23T07:07:00+01:00	2019-07-23T12:00:00+01:00	GWh/d	342.3	0	342.3	Failure		21YGB-UKGASGRIDW	55WALDBOROUGH00H	SSE Hornsea Ltd	A0001033U.UK
Aldbrough	ALD_000000000000000000367_002	Inactive	Unplanned	Injection unavailability	2019-07-19T10:17:32+01:00	2019-07-19T09:15:00+01:00	2019-07-19T10:15:00+01:00	GWh/d	111.02	200.54	311.56	Failure		21YGB-UKGASGRIDW	55WALDBOROUGH00H	SSE Hornsea Ltd	A0001033U.UK
Aldbrough	ALD_000000000000000000367_001	Dismissed	Unplanned	Injection unavailability	2019-07-19T09:15:41+01:00	2019-07-19T09:15:00+01:00	2019-07-19T18:00:00+01:00	GWh/d	111.02	200.54	311.56	Failure		21YGB-UKGASGRIDW	55WALDBOROUGH00H	SSE Hornsea Ltd	A0001033U.UK
Aldbrough	ALD_000000000000000000356_002	Inactive	Unplanned	Injection unavailability	2019-06-23T21:53:18+01:00	2019-06-23T20:10:00+01:00	2019-06-23T21:50:00+01:00	GWh/d	111.02	200.54	311.56	Failure		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.