Last update at: 2021-02-17T17:00:00+00:00

**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/)

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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_000000000000000000421_002	Inactive	Unplanned	Storage unavailability	2020-01-09T15:59:05+00:00	2020-01-09T05:00:00+00:00	2020-01-09T16:00:00+00:00	TWh	0.3445	1.80794821	2.15244821	Planned Outage		21YGB-UKGASGRIDW	55WALDBOROUGH00H	SSE Hornsea Ltd	A0001033U.UK
Aldbrough	ALD_000000000000000000421_001	Dismissed	Unplanned	Storage unavailability	2020-01-08T08:44:04+00:00	2020-01-09T05:00:00+00:00	2020-01-09T19:00:00+00:00	TWh	0.3445	1.80794821	2.15244821	Planned Outage		21YGB-UKGASGRIDW	55WALDBOROUGH00H	SSE Hornsea Ltd	A0001033U.UK
Aldbrough	ALD_000000000000000000383_002	Inactive	Planned	Storage unavailability	2019-09-23T13:37:57+01:00	2019-09-16T05:00:00+01:00	2019-09-23T13:35:00+01:00	TWh	0.0684	2.08404821	2.15244821	Planned Outage	Planned	21YGB-UKGASGRIDW	55WALDBOROUGH00H	SSE Hornsea Ltd	A0001033U.UK
Aldbrough	ALD_000000000000000000383_001	Dismissed	Planned	Storage unavailability	2019-09-15T09:40:47+01:00	2019-09-16T05:00:00+01:00	2019-09-25T18:00:00+01:00	TWh	0.0684	2.08404821	2.15244821	Planned Outage	Planned	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
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_000000000000000000355_002	Inactive	Unplanned	Storage unavailability	2019-06-19T10:25:44+01:00	2019-06-18T08:30:00+01:00	2019-06-19T10:24:00+01:00	TWh	0.4039	1.74854821	2.15244821	Failure		21YGB-UKGASGRIDW	55WALDBOROUGH00H	SSE Hornsea Ltd	A0001033U.UK
Aldbrough	ALD_000000000000000000355_001	Dismissed	Unplanned	Storage unavailability	2019-06-18T08:41:06+01:00	2019-06-18T08:30:00+01:00	2019-06-19T18:00:00+01:00	TWh	0.4039	1.74854821	2.15244821	Failure		21YGB-UKGASGRIDW	55WALDBOROUGH00H	SSE Hornsea Ltd	A0001033U.UK
Aldbrough	ALD_000000000000000000340_002	Inactive	Unplanned	Storage unavailability	2019-05-20T10:01:34+01:00	2019-05-19T22:50:00+01:00	2019-05-20T09:50:00+01:00	TWh	0.72504	1.42740821	2.15244821	Failure		21YGB-UKGASGRIDW	55WALDBOROUGH00H	SSE Hornsea Ltd	A0001033U.UK
Aldbrough	ALD_000000000000000000340_001	Dismissed	Unplanned	Storage unavailability	2019-05-19T22:59:46+01:00	2019-05-19T22:50:00+01:00	2019-05-20T09:50:00+01:00	TWh	0.72504	1.42740821	2.15244821	Failure		21YGB-UKGASGRIDW	55WALDBOROUGH00H	SSE Hornsea Ltd	A0001033U.UK
Aldbrough	ALD_000000000000000000303_002	Inactive	Unplanned	Storage unavailability	2018-11-19T12:32:16+00:00	2018-11-19T00:30:00+00:00	2018-11-19T12:30:00+00:00	TWh	0.34543	1.8197917	2.1652217	Failure	Cavern locked out due to high temperatures, caused by low flows, and successive turnarounds.	21YGB-UKGASGRIDW	55WALDBOROUGH00H	SSE Hornsea Ltd	A0001033U.UK
Aldbrough	ALD_000000000000000000303_001	Dismissed	Unplanned	Storage unavailability	2018-11-19T08:01:11+00:00	2018-11-19T00:30:00+00:00	2018-11-19T12:30:00+00:00	TWh	0.34543	1.8197917	2.1652217	Failure	Cavern locked out due to high temperatures, caused by low flows, and successive turnarounds.	21YGB-UKGASGRIDW	55WALDBOROUGH00H	SSE Hornsea Ltd	A0001033U.UK
Aldbrough	ALD_000000000000000000281_002	Inactive	Unplanned	Storage unavailability	2018-06-14T13:01:52+01:00	2018-06-14T00:21:00+01:00	2018-06-14T12:00:00+01:00	TWh	0.34698	1.8182417	2.1652217	Failure		21YGB-UKGASGRIDW	55WALDBOROUGH00H	SSE Hornsea Ltd	A0001033U.UK
Aldbrough	ALD_000000000000000000281_001	Dismissed	Unplanned	Storage unavailability	2018-06-14T00:24:08+01:00	2018-06-14T00:21:00+01:00	2018-06-14T12:00:00+01:00	TWh	0.34698	1.8182417	2.1652217	Failure		21YGB-UKGASGRIDW	55WALDBOROUGH00H	SSE Hornsea Ltd	A0001033U.UK
Aldbrough	ALD_000000000000000000273_002	Inactive	Unplanned	Storage unavailability	2018-05-24T19:41:31+01:00	2018-05-24T10:25:00+01:00	2018-05-24T19:00:00+01:00	TWh	0.347	1.8182217	2.1652217	Failure		21YGB-UKGASGRIDW	55WALDBOROUGH00H	SSE Hornsea Ltd	A0001033U.UK
Aldbrough	ALD_000000000000000000273_001	Dismissed	Unplanned	Storage unavailability	2018-05-24T10:27:39+01:00	2018-05-24T10:25:00+01:00	2018-05-24T19:00:00+01:00	TWh	0.347	1.8182217	2.1652217	Failure		21YGB-UKGASGRIDW	55WALDBOROUGH00H	SSE Hornsea Ltd	A0001033U.UK
Aldbrough	ALD_000000000000000000270_002	Inactive	Planned	Storage unavailability	2018-05-23T06:01:53+01:00	2018-05-09T00:01:00+01:00	2018-05-23T05:00:00+01:00	TWh	0.34543	1.8197917	2.1652217	Planned Outage		21YGB-UKGASGRIDW	55WALDBOROUGH00H	SSE Hornsea Ltd	A0001033U.UK
Aldbrough	ALD_000000000000000000270_001	Dismissed	Planned	Storage unavailability	2018-05-09T01:17:35+01:00	2018-05-09T00:01:00+01:00	2018-05-23T05:00:00+01:00	TWh	0.34543	1.8197917	2.1652217	Planned Outage		21YGB-UKGASGRIDW	55WALDBOROUGH00H	SSE Hornsea Ltd	A0001033U.UK
Aldbrough	ALD_000000000000000000271_002	Inactive	Planned	Storage unavailability	2018-05-17T20:01:52+01:00	2018-05-09T05:00:00+01:00	2018-05-17T19:00:00+01:00	TWh	0.34697	1.4728217	2.1652217	Planned Outage		21YGB-UKGASGRIDW	55WALDBOROUGH00H	SSE Hornsea Ltd	A0001033U.UK
Aldbrough	ALD_000000000000000000271_001	Dismissed	Planned	Storage unavailability	2018-05-09T01:37:00+01:00	2018-05-09T05:00:00+01:00	2018-05-17T19:00:00+01:00	TWh	0.34697	1.4728217	2.1652217	Planned Outage		21YGB-UKGASGRIDW	55WALDBOROUGH00H	SSE Hornsea Ltd	A0001033U.UK
Aldbrough	ALD_000000000000000000324_001	Dismissed	Planned	Storage unavailability	2019-02-22T09:39:58+00:00	2019-02-27T10:00:00+00:00	2019-02-27T14:00:00+00:00	TWh	2.3084208	0	2.3084208	Planned Outage	Full Site outage for fire and gas detection system upgrade	21YGB-UKGASGRIDW	55WALDBOROUGH00H	SSE Hornsea Ltd	A0001033U.UK
Aldbrough	ALD_000000000000000000504_005	Inactive	Planned	Storage unavailability	2020-09-21T20:01:52+01:00	2020-09-20T09:00:00+01:00	2020-09-21T19:00:00+01:00	TWh	0.80304	1.5322256	2.3352656	Planned Outage		21YGB-UKGASGRIDW	55WALDBOROUGH00H	SSE Hornsea Ltd	A0001033U.UK
Aldbrough	ALD_000000000000000000504_004	Dismissed	Planned	Storage unavailability	2020-09-21T14:12:43+01:00	2020-09-20T09:00:00+01:00	2020-09-21T19:00:00+01:00	TWh	0.80304	1.5322256	2.3352656	Planned Outage		21YGB-UKGASGRIDW	55WALDBOROUGH00H	SSE Hornsea Ltd	A0001033U.UK
Aldbrough	ALD_000000000000000000504_003	Dismissed	Planned	Storage unavailability	2020-09-21T12:59:33+01:00	2020-09-20T09:00:00+01:00	2020-09-21T15:00:00+01:00	TWh	0.80304	1.5322256	2.3352656	Planned Outage		21YGB-UKGASGRIDW	55WALDBOROUGH00H	SSE Hornsea Ltd	A0001033U.UK
Aldbrough	ALD_000000000000000000504_002	Dismissed	Planned	Storage unavailability	2020-09-20T08:51:58+01:00	2020-09-20T09:00:00+01:00	2020-09-21T12:00:00+01:00	TWh	0.80304	1.5322256	2.3352656	Planned Outage		21YGB-UKGASGRIDW	55WALDBOROUGH00H	SSE Hornsea Ltd	A0001033U.UK
Aldbrough	ALD_000000000000000000504_001	Dismissed	Planned	Storage unavailability	2020-09-18T12:54:36+01:00	2020-09-20T18:00:00+01:00	2020-09-21T12:00:00+01:00	TWh	0.80304	1.5322256	2.3352656	Planned Outage		21YGB-UKGASGRIDW	55WALDBOROUGH00H	SSE Hornsea Ltd	A0001033U.UK
Aldbrough	ALD_000000000000000000503_002	Inactive	Planned	Storage unavailability	2020-08-26T15:19:25+01:00	2020-08-24T05:00:00+01:00	2020-08-26T15:20:00+01:00	TWh	0.39886	1.9364056	2.3352656	Planned Outage		21YGB-UKGASGRIDW	55WALDBOROUGH00H	SSE Hornsea Ltd	A0001033U.UK
Aldbrough	ALD_000000000000000000503_001	Dismissed	Planned	Storage unavailability	2020-08-23T22:00:44+01:00	2020-08-24T05:00:00+01:00	2020-08-26T23:00:00+01:00	TWh	0.39886	1.9364056	2.3352656	Planned Outage		21YGB-UKGASGRIDW	55WALDBOROUGH00H	SSE Hornsea Ltd	A0001033U.UK
Aldbrough	ALD_000000000000000000502_002	Inactive	Planned	Storage unavailability	2020-08-14T20:13:51+01:00	2020-08-12T20:37:00+01:00	2020-08-14T20:10:00+01:00	TWh	0.36066	1.9746056	2.3352656	Planned Outage		21YGB-UKGASGRIDW	55WALDBOROUGH00H	SSE Hornsea Ltd	A0001033U.UK
Aldbrough	ALD_000000000000000000502_001	Dismissed	Planned	Storage unavailability	2020-08-12T20:37:58+01:00	2020-08-12T20:37:00+01:00	2020-08-15T23:00:00+01:00	TWh	0.36066	1.9746056	2.3352656	Planned Outage		21YGB-UKGASGRIDW	55WALDBOROUGH00H	SSE Hornsea Ltd	A0001033U.UK
Aldbrough	ALD_000000000000000000501_002	Inactive	Planned	Storage unavailability	2020-08-12T20:29:13+01:00	2020-08-10T07:00:00+01:00	2020-08-12T20:28:00+01:00	TWh	0.38382526	1.95144034	2.3352656	Planned Outage		21YGB-UKGASGRIDW	55WALDBOROUGH00H	SSE Hornsea Ltd	A0001033U.UK
Aldbrough	ALD_000000000000000000501_001	Dismissed	Planned	Storage unavailability	2020-08-10T06:07:29+01:00	2020-08-10T07:00:00+01:00	2020-08-12T23:00:00+01:00	TWh	0.38382526	1.95144034	2.3352656	Planned Outage		21YGB-UKGASGRIDW	55WALDBOROUGH00H	SSE Hornsea Ltd	A0001033U.UK
Aldbrough	ALD_000000000000000000457_001	Dismissed	Planned	Storage unavailability	2020-07-11T13:21:51+01:00	2021-05-08T05:00:00+01:00	2021-05-20T18:00:00+01:00	TWh	2.3352656	0	2.3352656	Planned Outage		21YGB-UKGASGRIDW	55WALDBOROUGH00H	SSE Hornsea Ltd	A0001033U.UK
Atwick	ATW_000000000000000000280_003	Inactive	Unplanned	Storage unavailability	2018-06-14T13:59:50+01:00	2018-06-10T08:58:00+01:00	2018-06-14T14:01:00+01:00	TWh	0.20537	2.4180128	2.6233828	Failure		21YGB-UKGASGRIDW	55WATWICK-SSE00J	SSE Hornsea Ltd	A0001033U.UK
Atwick	ATW_000000000000000000280_002	Dismissed	Unplanned	Storage unavailability	2018-06-13T17:13:22+01:00	2018-06-10T08:58:00+01:00	2018-06-14T18:00:00+01:00	TWh	0.20537	2.4180128	2.6233828	Failure		21YGB-UKGASGRIDW	55WATWICK-SSE00J	SSE Hornsea Ltd	A0001033U.UK
Atwick	ATW_000000000000000000280_001	Dismissed	Unplanned	Storage unavailability	2018-06-10T08:57:21+01:00	2018-06-10T08:58:00+01:00	2018-06-13T18:00:00+01:00	TWh	0.20537	2.4180128	2.6233828	Failure		21YGB-UKGASGRIDW	55WATWICK-SSE00J	SSE Hornsea Ltd	A0001033U.UK
Atwick	ATW_000000000000000000243_002	Dismissed	Planned	Storage unavailability	2018-05-11T14:05:38+01:00	2018-06-06T07:00:00+01:00	2018-06-06T19:00:00+01:00	TWh	1.3633	1.2600828	2.6233828	Planned Outage	Planned	21YGB-UKGASGRIDW	55WATWICK-SSE00J	SSE Hornsea Ltd	A0001033U.UK
Atwick	ATW_000000000000000000243_001	Dismissed	Planned	Storage unavailability	2018-01-29T13:59:02+00:00	2018-06-06T07:00:00+01:00	2018-06-06T19:00:00+01:00	TWh	1.3633	1.2600828	2.6233828	Planned Outage	Planned	21YGB-UKGASGRIDW	55WATWICK-SSE00J	SSE Hornsea Ltd	A0001033U.UK
Atwick	ATW_000000000000000000242_002	Dismissed	Planned	Storage unavailability	2018-05-11T14:05:11+01:00	2018-06-05T07:00:00+01:00	2018-06-06T07:00:00+01:00	TWh	1.56866	1.0547228	2.6233828	Planned Outage	Planned	21YGB-UKGASGRIDW	55WATWICK-SSE00J	SSE Hornsea Ltd	A0001033U.UK
Atwick	ATW_000000000000000000242_001	Dismissed	Planned	Storage unavailability	2018-01-29T13:57:06+00:00	2018-06-05T07:00:00+01:00	2018-06-06T07:00:00+01:00	TWh	1.56866	1.0547228	2.6233828	Planned Outage	Planned	21YGB-UKGASGRIDW	55WATWICK-SSE00J	SSE Hornsea Ltd	A0001033U.UK
Atwick	ATW_000000000000000000267_002	Inactive	Unplanned	Storage unavailability	2018-04-07T14:24:38+01:00	2018-04-07T09:45:00+01:00	2018-04-09T14:22:00+01:00	TWh	0.366948	2.2564348	2.6233828	Failure	Unplanned	21YGB-UKGASGRIDW	55WATWICK-SSE00J	SSE Hornsea Ltd	A0001033U.UK
Atwick	ATW_000000000000000000267_001	Dismissed	Unplanned	Storage unavailability	2018-04-07T09:59:06+01:00	2018-04-07T09:45:00+01:00	2018-04-09T18:00:00+01:00	TWh	0.366948	2.2564348	2.6233828	Failure	Unplanned	21YGB-UKGASGRIDW	55WATWICK-SSE00J	SSE Hornsea Ltd	A0001033U.UK
Atwick	ATW_000000000000000000258_002	Inactive	Planned	Storage unavailability	2018-03-11T13:55:39+00:00	2018-03-11T08:00:00+00:00	2018-03-11T13:55:00+00:00	TWh	1.1248	1.4985828	2.6233828	Planned Outage	Planned	21YGB-UKGASGRIDW	55WATWICK-SSE00J	SSE Hornsea Ltd	A0001033U.UK
Atwick	ATW_000000000000000000258_001	Dismissed	Planned	Storage unavailability	2018-03-08T12:50:15+00:00	2018-03-11T08:00:00+00:00	2018-03-11T14:00:00+00:00	TWh	1.1248	1.4985828	2.6233828	Planned Outage	Planned	21YGB-UKGASGRIDW	55WATWICK-SSE00J	SSE Hornsea Ltd	A0001033U.UK
Atwick	ATW_000000000000000000316_002	Inactive	Unplanned	Storage unavailability	2019-01-27T19:08:42+00:00	2019-01-27T16:30:00+00:00	2019-01-27T19:08:00+00:00	TWh	2.631064	0	2.631064	Failure	unplanned	21YGB-UKGASGRIDW	55WATWICK-SSE00J	SSE Hornsea Ltd	A0001033U.UK
Atwick	ATW_000000000000000000316_001	Dismissed	Unplanned	Storage unavailability	2019-01-27T17:05:01+00:00	2019-01-27T16:30:00+00:00	2019-01-27T20:00:00+00:00	TWh	2.631064	0	2.631064	Failure	unplanned	21YGB-UKGASGRIDW	55WATWICK-SSE00J	SSE Hornsea Ltd	A0001033U.UK
Atwick	ATW_000000000000000000315_002	Inactive	Planned	Storage unavailability	2019-01-22T15:58:24+00:00	2019-01-22T05:00:00+00:00	2019-01-22T15:58:00+00:00	TWh	0.340326212	2.290737788	2.631064	Planned Outage	planned.	21YGB-UKGASGRIDW	55WATWICK-SSE00J	SSE Hornsea Ltd	A0001033U.UK
Atwick	ATW_000000000000000000315_001	Dismissed	Planned	Storage unavailability	2019-01-21T16:46:42+00:00	2019-01-22T05:00:00+00:00	2019-01-22T17:00:00+00:00	TWh	0.340326212	2.290737788	2.631064	Planned Outage	planned.	21YGB-UKGASGRIDW	55WATWICK-SSE00J	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.