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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	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_000000000000000000477_002	Active	Planned	Injection unavailability	2021-06-30T10:43:14+01:00	2023-10-16T05:00:00+01:00	2023-10-21T05:00:00+01:00	GWh/d	111.02	200.54	311.56	Planned Outage	Comp 2 Outage	21YGB-UKGASGRIDW	55WALDBOROUGH00H	SSE Hornsea Ltd	A0001033U.UK
Aldbrough	ALD_000000000000000000478_001	Active	Planned	Injection unavailability	2020-07-11T16:22:41+01:00	2023-10-23T05:00:00+01:00	2023-10-28T05:00:00+01:00	GWh/d	111.02	200.54	311.56	Planned Outage	Comp 3 Outage	21YGB-UKGASGRIDW	55WALDBOROUGH00H	SSE Hornsea Ltd	A0001033U.UK
Aldbrough	ALD_000000000000000000479_001	Dismissed	Planned	Injection unavailability	2020-07-11T16:25:45+01:00	2024-05-12T05:00:00+01:00	2024-05-24T18:00:00+01:00	GWh/d	311.56	0	311.56	Planned Outage	Full Site Outage	21YGB-UKGASGRIDW	55WALDBOROUGH00H	SSE Hornsea Ltd	A0001033U.UK
Aldbrough	ALD_000000000000000000479_002	Dismissed	Planned	Injection unavailability	2020-09-20T08:57:21+01:00	2024-05-12T05:00:00+01:00	2024-05-21T09:00:00+01:00	GWh/d	311.56	0	311.56	Planned Outage	Full Site Outage	21YGB-UKGASGRIDW	55WALDBOROUGH00H	SSE Hornsea Ltd	A0001033U.UK
Aldbrough	ALD_000000000000000000479_003	Dismissed	Planned	Injection unavailability	2020-09-20T09:03:10+01:00	2024-05-12T05:00:00+01:00	2024-05-21T18:00:00+01:00	GWh/d	311.56	0	311.56	Planned Outage	Full Site Outage	21YGB-UKGASGRIDW	55WALDBOROUGH00H	SSE Hornsea Ltd	A0001033U.UK
Aldbrough	ALD_000000000000000000479_004	Active	Planned	Injection unavailability	2023-07-25T08:42:49+01:00	2024-05-12T05:00:00+01:00	2024-05-21T18:00:00+01:00	GWh/d	311.56	0	311.56	Planned Outage	Full Site Outage.	21YGB-UKGASGRIDW	55WALDBOROUGH00H	SSE Hornsea Ltd	A0001033U.UK
Aldbrough	ALD_000000000000000000480_001	Dismissed	Planned	Withdrawal unavailability	2020-07-11T16:29:20+01:00	2024-05-12T05:00:00+01:00	2024-05-24T18:00:00+01:00	GWh/d	342.3	0	342.3	Planned Outage	Full Site Outage	21YGB-UKGASGRIDW	55WALDBOROUGH00H	SSE Hornsea Ltd	A0001033U.UK
Aldbrough	ALD_000000000000000000480_002	Dismissed	Planned	Withdrawal unavailability	2021-06-30T09:54:19+01:00	2024-05-12T05:00:00+01:00	2024-05-21T18:00:00+01:00	GWh/d	342.3	0	342.3	Planned Outage	Full Site Outage	21YGB-UKGASGRIDW	55WALDBOROUGH00H	SSE Hornsea Ltd	A0001033U.UK
Aldbrough	ALD_000000000000000000480_003	Active	Planned	Withdrawal unavailability	2023-07-25T08:34:12+01:00	2024-05-12T05:00:00+01:00	2024-05-21T18:00:00+01:00	GWh/d	342.3	0	342.3	Planned Outage	Full Site Outage.	21YGB-UKGASGRIDW	55WALDBOROUGH00H	SSE Hornsea Ltd	A0001033U.UK
Aldbrough	ALD_000000000000000000481_001	Dismissed	Planned	Withdrawal unavailability	2020-07-11T16:32:14+01:00	2024-05-10T05:00:00+01:00	2024-05-24T18:00:00+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_000000000000000000481_002	Active	Planned	Withdrawal unavailability	2023-07-06T11:02:26+01:00	2024-05-10T05:00:00+01:00	2024-05-24T18:00:00+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_000000000000000000482_001	Dismissed	Planned	Withdrawal unavailability	2020-07-11T16:34:24+01:00	2024-06-02T05:00:00+01:00	2024-06-16T18:00:00+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_000000000000000000482_002	Active	Planned	Withdrawal unavailability	2023-07-06T11:07:56+01:00	2024-06-02T05:00:00+01:00	2024-06-16T18:00:00+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_000000000000000000483_001	Dismissed	Planned	Injection unavailability	2020-07-11T16:37:34+01:00	2024-10-14T05:00:00+01:00	2024-10-19T05:00:00+01:00	GWh/d	111.02	200.54	311.56	Planned Outage	Comp 1 Outage	21YGB-UKGASGRIDW	55WALDBOROUGH00H	SSE Hornsea Ltd	A0001033U.UK
Aldbrough	ALD_000000000000000000483_002	Active	Planned	Injection unavailability	2023-07-06T11:08:36+01:00	2024-10-14T05:00:00+01:00	2024-10-19T05:00:00+01:00	GWh/d	111.02	200.54	311.56	Planned Outage	Comp 1 Outage.	21YGB-UKGASGRIDW	55WALDBOROUGH00H	SSE Hornsea Ltd	A0001033U.UK
Aldbrough	ALD_000000000000000000484_001	Dismissed	Planned	Injection unavailability	2020-07-11T16:40:06+01:00	2024-10-27T05:00:00+00:00	2024-11-03T05:00:00+00:00	GWh/d	111.02	200.54	311.56	Planned Outage	Comp 2 Outage	21YGB-UKGASGRIDW	55WALDBOROUGH00H	SSE Hornsea Ltd	A0001033U.UK
Aldbrough	ALD_000000000000000000484_002	Active	Planned	Injection unavailability	2023-07-06T11:09:25+01:00	2024-10-27T05:00:00+00:00	2024-11-03T05:00:00+00:00	GWh/d	111.02	200.54	311.56	Planned Outage	Comp 2 Outage.	21YGB-UKGASGRIDW	55WALDBOROUGH00H	SSE Hornsea Ltd	A0001033U.UK
Aldbrough	ALD_000000000000000000485_001	Dismissed	Planned	Injection unavailability	2020-07-11T16:42:39+01:00	2024-10-21T05:00:00+01:00	2024-10-26T05:00:00+01:00	GWh/d	111.02	200.54	311.56	Planned Outage	Comp 3 Outage	21YGB-UKGASGRIDW	55WALDBOROUGH00H	SSE Hornsea Ltd	A0001033U.UK
Aldbrough	ALD_000000000000000000485_002	Active	Planned	Injection unavailability	2023-07-06T11:10:28+01:00	2024-10-21T05:00:00+01:00	2024-10-26T05:00:00+01:00	GWh/d	111.02	200.54	311.56	Planned Outage	Comp 3 Outage.	21YGB-UKGASGRIDW	55WALDBOROUGH00H	SSE Hornsea Ltd	A0001033U.UK
Aldbrough	ALD_000000000000000000505_001	Dismissed	Unplanned	Injection unavailability	2020-09-20T08:54:10+01:00	2020-09-20T09:00:00+01:00	2020-09-27T18:00:00+01:00	GWh/d	111.02	200.54	311.56	Failure		21YGB-UKGASGRIDW	55WALDBOROUGH00H	SSE Hornsea Ltd	A0001033U.UK
Aldbrough	ALD_000000000000000000509_001	Dismissed	Unplanned	Injection unavailability	2020-09-26T21:04:21+01:00	2020-09-26T21:00:00+01:00	2020-09-28T12:00:00+01:00	GWh/d	111.02	200.54	311.56	Failure		21YGB-UKGASGRIDW	55WALDBOROUGH00H	SSE Hornsea Ltd	A0001033U.UK
Aldbrough	ALD_000000000000000000509_002	Inactive	Unplanned	Injection unavailability	2020-09-27T10:38:21+01:00	2020-09-26T21:00:00+01:00	2020-09-27T10:41:00+01:00	GWh/d	111.02	200.54	311.56	Failure		21YGB-UKGASGRIDW	55WALDBOROUGH00H	SSE Hornsea Ltd	A0001033U.UK
Aldbrough	ALD_000000000000000000517_001	Dismissed	Unplanned	Injection unavailability	2020-10-26T09:16:47+00:00	2020-10-26T09:20:00+00:00	2020-10-27T12:00:00+00:00	GWh/d	100.27	211.29	311.56	Failure		21YGB-UKGASGRIDW	55WALDBOROUGH00H	SSE Hornsea Ltd	A0001033U.UK
Aldbrough	ALD_000000000000000000517_002	Inactive	Unplanned	Injection unavailability	2020-10-27T10:46:06+00:00	2020-10-26T09:20:00+00:00	2020-10-27T10:45:00+00:00	GWh/d	100.27	211.29	311.56	Failure		21YGB-UKGASGRIDW	55WALDBOROUGH00H	SSE Hornsea Ltd	A0001033U.UK
Aldbrough	ALD_000000000000000000519_001	Dismissed	Unplanned	Injection unavailability	2020-10-31T05:53:15+00:00	2020-10-31T05:35:00+00:00	2020-10-31T12:00:00+00:00	GWh/d	211.29	100.27	311.56	Failure		21YGB-UKGASGRIDW	55WALDBOROUGH00H	SSE Hornsea Ltd	A0001033U.UK
Aldbrough	ALD_000000000000000000519_002	Inactive	Unplanned	Injection unavailability	2020-10-31T08:24:37+00:00	2020-10-31T05:35:00+00:00	2020-10-31T08:25:00+00:00	GWh/d	211.29	100.27	311.56	Failure		21YGB-UKGASGRIDW	55WALDBOROUGH00H	SSE Hornsea Ltd	A0001033U.UK
Aldbrough	ALD_000000000000000000520_001	Dismissed	Unplanned	Withdrawal unavailability	2020-11-05T02:10:29+00:00	2020-11-05T00:45:00+00:00	2020-11-05T10:00:00+00:00	GWh/d	121.5	220.8	342.3	Failure		21YGB-UKGASGRIDW	55WALDBOROUGH00H	SSE Hornsea Ltd	A0001033U.UK
Aldbrough	ALD_000000000000000000520_002	Inactive	Unplanned	Withdrawal unavailability	2020-11-05T11:01:54+00:00	2020-11-05T00:45:00+00:00	2020-11-05T10:00:00+00:00	GWh/d	121.5	220.8	342.3	Failure		21YGB-UKGASGRIDW	55WALDBOROUGH00H	SSE Hornsea Ltd	A0001033U.UK
Aldbrough	ALD_000000000000000000522_001	Dismissed	Planned	Injection unavailability	2020-11-17T18:10:21+00:00	2020-11-17T18:00:00+00:00	2020-11-18T00:00:00+00:00	GWh/d	111.2	200.36	311.56	Planned Outage	Extension to maintenance	21YGB-UKGASGRIDW	55WALDBOROUGH00H	SSE Hornsea Ltd	A0001033U.UK
Aldbrough	ALD_000000000000000000522_002	Dismissed	Planned	Injection unavailability	2020-11-17T19:31:21+00:00	2020-11-17T18:00:00+00:00	2020-11-18T12:00:00+00:00	GWh/d	111.2	200.36	311.56	Planned Outage	Extension to maintenance	21YGB-UKGASGRIDW	55WALDBOROUGH00H	SSE Hornsea Ltd	A0001033U.UK
Aldbrough	ALD_000000000000000000522_003	Inactive	Planned	Injection unavailability	2020-11-18T12:00:50+00:00	2020-11-17T18:00:00+00:00	2020-11-18T12:00:00+00:00	GWh/d	111.2	200.36	311.56	Planned Outage	Extension to maintenance	21YGB-UKGASGRIDW	55WALDBOROUGH00H	SSE Hornsea Ltd	A0001033U.UK
Aldbrough	ALD_000000000000000000529_001	Dismissed	Planned	Injection unavailability	2020-11-27T13:51:59+00:00	2021-10-30T05:00:00+01:00	2021-10-30T18:00:00+01:00	GWh/d	111.02	200.54	311.56	Planned Outage	Gas Compressor 1 Siemens maintenance	21YGB-UKGASGRIDW	55WALDBOROUGH00H	SSE Hornsea Ltd	A0001033U.UK
Aldbrough	ALD_000000000000000000529_002	Inactive	Planned	Injection unavailability	2021-10-30T19:02:31+01:00	2021-10-30T05:00:00+01:00	2021-10-30T18:00:00+01:00	GWh/d	111.02	200.54	311.56	Planned Outage	Gas Compressor 1 Siemens maintenance	21YGB-UKGASGRIDW	55WALDBOROUGH00H	SSE Hornsea Ltd	A0001033U.UK
Aldbrough	ALD_000000000000000000530_001	Dismissed	Unplanned	Withdrawal unavailability	2020-11-28T14:51:54+00:00	2020-11-28T14:00:00+00:00	2020-11-28T17:00:00+00:00	GWh/d	342.3	0	342.3	Failure		21YGB-UKGASGRIDW	55WALDBOROUGH00H	SSE Hornsea Ltd	A0001033U.UK
Aldbrough	ALD_000000000000000000530_002	Inactive	Unplanned	Withdrawal unavailability	2020-11-28T16:34:40+00:00	2020-11-28T14:00:00+00:00	2020-11-28T16:30:00+00:00	GWh/d	342.3	0	342.3	Failure		21YGB-UKGASGRIDW	55WALDBOROUGH00H	SSE Hornsea Ltd	A0001033U.UK
Aldbrough	ALD_000000000000000000531_001	Dismissed	Unplanned	Injection unavailability	2020-11-29T20:26:18+00:00	2020-11-29T19:30:00+00:00	2020-11-30T12:00:00+00:00	GWh/d	111.02	200.54	311.56	Failure		21YGB-UKGASGRIDW	55WALDBOROUGH00H	SSE Hornsea Ltd	A0001033U.UK
Aldbrough	ALD_000000000000000000531_002	Dismissed	Unplanned	Injection unavailability	2020-11-29T22:53:18+00:00	2020-11-29T19:30:00+00:00	2020-11-29T22:50:00+00:00	GWh/d	111.02	200.54	311.56	Failure		21YGB-UKGASGRIDW	55WALDBOROUGH00H	SSE Hornsea Ltd	A0001033U.UK
Aldbrough	ALD_000000000000000000534_001	Dismissed	Unplanned	Withdrawal unavailability	2020-12-06T21:55:03+00:00	2020-12-06T21:54:00+00:00	2020-12-06T23:30:00+00:00	GWh/d	342.3	0	342.3	Failure		21YGB-UKGASGRIDW	55WALDBOROUGH00H	SSE Hornsea Ltd	A0001033U.UK
Aldbrough	ALD_000000000000000000534_002	Inactive	Unplanned	Withdrawal unavailability	2020-12-06T23:18:37+00:00	2020-12-06T21:54:00+00:00	2020-12-06T23:16:00+00:00	GWh/d	342.3	0	342.3	Failure		21YGB-UKGASGRIDW	55WALDBOROUGH00H	SSE Hornsea Ltd	A0001033U.UK
Aldbrough	ALD_000000000000000000535_001	Dismissed	Unplanned	Injection unavailability	2020-12-07T16:10:31+00:00	2020-12-07T16:10:00+00:00	2020-12-08T16:10:00+00:00	GWh/d	111.02	200.54	311.56	Failure		21YGB-UKGASGRIDW	55WALDBOROUGH00H	SSE Hornsea Ltd	A0001033U.UK
Aldbrough	ALD_000000000000000000535_002	Dismissed	Unplanned	Injection unavailability	2020-12-08T13:21:11+00:00	2020-12-07T16:10:00+00:00	2020-12-11T18:00:00+00:00	GWh/d	111.02	200.54	311.56	Failure	Compressor 3	21YGB-UKGASGRIDW	55WALDBOROUGH00H	SSE Hornsea Ltd	A0001033U.UK
Aldbrough	ALD_000000000000000000535_003	Dismissed	Unplanned	Injection unavailability	2020-12-11T17:24:19+00:00	2020-12-07T16:10:00+00:00	2020-12-18T18:00:00+00:00	GWh/d	111.02	200.54	311.56	Failure	Compressor 3	21YGB-UKGASGRIDW	55WALDBOROUGH00H	SSE Hornsea Ltd	A0001033U.UK
Aldbrough	ALD_000000000000000000535_004	Inactive	Unplanned	Injection unavailability	2020-12-17T16:25:38+00:00	2020-12-07T16:10:00+00:00	2020-12-17T16:30:00+00:00	GWh/d	111.02	200.54	311.56	Failure	Compressor 3	21YGB-UKGASGRIDW	55WALDBOROUGH00H	SSE Hornsea Ltd	A0001033U.UK
Aldbrough	ALD_000000000000000000553_001	Dismissed	Unplanned	Injection unavailability	2021-01-17T19:42:35+00:00	2021-01-17T19:40:00+00:00	2021-01-19T18:00:00+00:00	GWh/d	111.02	200.54	311.56	Failure		21YGB-UKGASGRIDW	55WALDBOROUGH00H	SSE Hornsea Ltd	A0001033U.UK
Aldbrough	ALD_000000000000000000553_002	Inactive	Unplanned	Injection unavailability	2021-01-18T15:51:19+00:00	2021-01-17T19:40:00+00:00	2021-01-18T15:55:00+00:00	GWh/d	111.02	200.54	311.56	Failure		21YGB-UKGASGRIDW	55WALDBOROUGH00H	SSE Hornsea Ltd	A0001033U.UK
Aldbrough	ALD_000000000000000000554_001	Dismissed	Unplanned	Injection unavailability	2021-01-30T21:36:06+00:00	2021-01-30T21:35:00+00:00	2021-01-31T18:00:00+00:00	GWh/d	111.02	200.54	311.56	Failure		21YGB-UKGASGRIDW	55WALDBOROUGH00H	SSE Hornsea Ltd	A0001033U.UK
Aldbrough	ALD_000000000000000000554_002	Inactive	Unplanned	Injection unavailability	2021-01-31T15:20:00+00:00	2021-01-30T21:35:00+00:00	2021-01-31T15:20:00+00:00	GWh/d	111.02	200.54	311.56	Failure		21YGB-UKGASGRIDW	55WALDBOROUGH00H	SSE Hornsea Ltd	A0001033U.UK
Aldbrough	ALD_000000000000000000556_001	Dismissed	Planned	Injection unavailability	2021-02-02T19:51:50+00:00	2021-02-16T06:30:00+00:00	2021-02-16T08:30:00+00:00	GWh/d	311.56	0	311.56	Planned Outage		21YGB-UKGASGRIDW	55WALDBOROUGH00H	SSE Hornsea Ltd	A0001033U.UK
Aldbrough	ALD_000000000000000000556_002	Dismissed	Planned	Injection unavailability	2021-02-16T08:16:35+00:00	2021-02-16T06:30:00+00:00	2021-02-16T09:30:00+00:00	GWh/d	311.56	0	311.56	Planned Outage		21YGB-UKGASGRIDW	55WALDBOROUGH00H	SSE Hornsea Ltd	A0001033U.UK
Aldbrough	ALD_000000000000000000556_003	Dismissed	Planned	Injection unavailability	2021-02-16T09:29:20+00:00	2021-02-16T06:30:00+00:00	2021-02-16T11:00:00+00:00	GWh/d	311.56	0	311.56	Planned Outage		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.