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
1 2 3 4 5 >
Aldbrough	ALD_000000000000000000337_004	Inactive	Planned	Withdrawal unavailability	2019-06-13T16:10:07+01:00	2019-05-27T05:00:00+01:00	2019-06-13T16:10:00+01:00	GWh/d	0	342.3	342.3	Planned Outage		21YGB-UKGASGRIDW	55WALDBOROUGH00H	SSE Hornsea Ltd	A0001033U.UK
Aldbrough	ALD_000000000000000000327_003	Inactive	Unplanned	Withdrawal unavailability	2019-03-02T04:13:53+00:00	2019-03-02T02:03:00+00:00	2019-03-02T04:15:00+00:00	GWh/d	0	342.3	342.3	Failure		21YGB-UKGASGRIDW	55WALDBOROUGH00H	SSE Hornsea Ltd	A0001033U.UK
Aldbrough	ALD_000000000000000000326_002	Inactive	Unplanned	Withdrawal unavailability	2019-02-24T12:43:31+00:00	2019-02-24T03:37:00+00:00	2019-02-24T12:40:00+00:00	GWh/d	0	342.3	342.3	Failure		21YGB-UKGASGRIDW	55WALDBOROUGH00H	SSE Hornsea Ltd	A0001033U.UK
Aldbrough	ALD_000000000000000000477_001	Active	Planned	Injection unavailability	2020-07-11T16:17:27+01:00	2023-10-16T05:00:00+01:00	2023-10-21T05:00:00+01:00	GWh/d	0	311.56	311.56	Planned Outage	Comp 2 Outage	21YGB-UKGASGRIDW	55WALDBOROUGH00H	SSE Hornsea Ltd	A0001033U.UK
Aldbrough	ALD_000000000000000000328_003	Inactive	Unplanned	Injection unavailability	2019-03-02T04:14:33+00:00	2019-03-02T02:03:00+00:00	2019-03-02T04:15:00+00:00	GWh/d	0	311.56	311.56	Failure		21YGB-UKGASGRIDW	55WALDBOROUGH00H	SSE Hornsea Ltd	A0001033U.UK
Aldbrough	ALD_000000000000000000268_002	Inactive	Unplanned	Injection unavailability	2018-05-07T15:30:10+01:00	2018-05-07T14:00:00+01:00	2018-05-07T15:15:00+01:00	GWh/d	0	311.56	311.56	Failure		21YGB-UKGASGRIDW	55WALDBOROUGH00H	SSE Hornsea Ltd	A0001033U.UK
Aldbrough	ALD_000000000000000000268_001	Dismissed	Unplanned	Injection unavailability	2018-05-07T14:25:28+01:00	2018-05-07T14:00:00+01:00	2018-05-07T20:00:00+01:00	GWh/d	0	311.56	311.56	Failure		21YGB-UKGASGRIDW	55WALDBOROUGH00H	SSE Hornsea Ltd	A0001033U.UK
Aldbrough	ALD_000000000000000000460_004	Active	Planned	Withdrawal unavailability	2021-03-12T10:30:05+00:00	2021-05-01T05:00:00+01:00	2021-05-08T05:00:00+01:00	GWh/d	121.5	220.8	342.3	Planned Outage	Prod Train 1 Outage. Then into main site outage.	21YGB-UKGASGRIDW	55WALDBOROUGH00H	SSE Hornsea Ltd	A0001033U.UK
Aldbrough	ALD_000000000000000000460_003	Dismissed	Planned	Withdrawal unavailability	2020-12-01T10:21:49+00:00	2021-05-02T05:00:00+01:00	2021-05-08T05:00:00+01:00	GWh/d	121.5	220.8	342.3	Planned Outage	Prod Train 1 Outage. Then into main site outage	21YGB-UKGASGRIDW	55WALDBOROUGH00H	SSE Hornsea Ltd	A0001033U.UK
Aldbrough	ALD_000000000000000000460_002	Dismissed	Planned	Withdrawal unavailability	2020-11-27T12:01:09+00:00	2021-05-02T05:00:00+01:00	2021-05-08T18:00:00+01:00	GWh/d	121.5	220.8	342.3	Planned Outage	Prod Train 1 Outage. Then into main site outage	21YGB-UKGASGRIDW	55WALDBOROUGH00H	SSE Hornsea Ltd	A0001033U.UK
Aldbrough	ALD_000000000000000000460_001	Dismissed	Planned	Withdrawal unavailability	2020-07-11T13:51:55+01:00	2021-05-06T05:00:00+01:00	2021-05-20T18:00:00+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_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_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_000000000000000000430_003	Inactive	Planned	Withdrawal unavailability	2020-10-08T21:47:29+01:00	2020-09-26T05:00:00+01:00	2020-10-08T21:45:00+01:00	GWh/d	121.5	220.8	342.3	Planned Outage		21YGB-UKGASGRIDW	55WALDBOROUGH00H	SSE Hornsea Ltd	A0001033U.UK
Aldbrough	ALD_000000000000000000430_002	Dismissed	Planned	Withdrawal unavailability	2020-04-07T10:19:13+01:00	2020-09-26T05:00:00+01:00	2020-10-09T18:00:00+01:00	GWh/d	121.5	220.8	342.3	Planned Outage		21YGB-UKGASGRIDW	55WALDBOROUGH00H	SSE Hornsea Ltd	A0001033U.UK
Aldbrough	ALD_000000000000000000430_001	Dismissed	Planned	Withdrawal unavailability	2020-01-29T09:48:28+00:00	2020-05-26T05:00:00+01:00	2020-06-09T18:00:00+01:00	GWh/d	121.5	220.8	342.3	Planned Outage		21YGB-UKGASGRIDW	55WALDBOROUGH00H	SSE Hornsea Ltd	A0001033U.UK
Aldbrough	ALD_000000000000000000506_002	Inactive	Planned	Withdrawal unavailability	2020-09-21T09:24:08+01:00	2020-09-20T09:00:00+01:00	2020-09-21T09:24:00+01:00	GWh/d	121.5	220.8	342.3	Planned Outage		21YGB-UKGASGRIDW	55WALDBOROUGH00H	SSE Hornsea Ltd	A0001033U.UK
Aldbrough	ALD_000000000000000000506_001	Dismissed	Planned	Withdrawal unavailability	2020-09-20T08:55:51+01:00	2020-09-20T09:00:00+01:00	2020-09-21T18:00:00+01:00	GWh/d	121.5	220.8	342.3	Planned Outage		21YGB-UKGASGRIDW	55WALDBOROUGH00H	SSE Hornsea Ltd	A0001033U.UK
Aldbrough	ALD_000000000000000000429_003	Inactive	Planned	Withdrawal unavailability	2020-09-13T06:01:53+01:00	2020-09-05T05:00:00+01:00	2020-09-13T05:00:00+01:00	GWh/d	121.5	220.8	342.3	Planned Outage		21YGB-UKGASGRIDW	55WALDBOROUGH00H	SSE Hornsea Ltd	A0001033U.UK
Aldbrough	ALD_000000000000000000429_002	Dismissed	Planned	Withdrawal unavailability	2020-04-07T10:17:35+01:00	2020-09-05T05:00:00+01:00	2020-09-13T05:00:00+01:00	GWh/d	121.5	220.8	342.3	Planned Outage		21YGB-UKGASGRIDW	55WALDBOROUGH00H	SSE Hornsea Ltd	A0001033U.UK
Aldbrough	ALD_000000000000000000429_001	Dismissed	Planned	Withdrawal unavailability	2020-01-29T09:46:22+00:00	2020-05-03T05:00:00+01:00	2020-05-11T05:00:00+01:00	GWh/d	121.5	220.8	342.3	Planned Outage		21YGB-UKGASGRIDW	55WALDBOROUGH00H	SSE Hornsea Ltd	A0001033U.UK
Aldbrough	ALD_000000000000000000482_001	Active	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_000000000000000000481_001	Active	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_000000000000000000475_001	Active	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_000000000000000000474_001	Active	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_000000000000000000468_001	Active	Planned	Withdrawal unavailability	2020-07-11T15:50:13+01:00	2022-05-06T05:00:00+01:00	2022-05-20T18:00:00+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_000000000000000000467_001	Active	Planned	Withdrawal unavailability	2020-07-11T15:46:33+01:00	2022-05-20T05:00:00+01:00	2022-06-19T18:00:00+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_000000000000000000461_001	Active	Planned	Withdrawal unavailability	2020-07-11T13:55:44+01:00	2021-06-01T05:00:00+01:00	2021-06-15T18:00:00+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_000000000000000000453_002	Inactive	Unplanned	Withdrawal unavailability	2020-06-16T20:20:38+01:00	2020-06-16T18:30:00+01:00	2020-06-16T19:51:00+01:00	GWh/d	121.5	220.8	342.3	Failure		21YGB-UKGASGRIDW	55WALDBOROUGH00H	SSE Hornsea Ltd	A0001033U.UK
Aldbrough	ALD_000000000000000000453_001	Dismissed	Unplanned	Withdrawal unavailability	2020-06-16T20:17:46+01:00	2020-06-16T18:30:00+01:00	2020-06-16T20:20:00+01:00	GWh/d	121.5	220.8	342.3	Failure		21YGB-UKGASGRIDW	55WALDBOROUGH00H	SSE Hornsea Ltd	A0001033U.UK
Aldbrough	ALD_000000000000000000425_003	Dismissed	Unplanned	Withdrawal unavailability	2020-01-24T17:57:49+00:00	2020-01-20T17:00:00+00:00	2020-01-24T18:00:00+00:00	GWh/d	121.5	220.8	342.3	Failure		21YGB-UKGASGRIDW	55WALDBOROUGH00H	SSE Hornsea Ltd	A0001033U.UK
Aldbrough	ALD_000000000000000000425_002	Dismissed	Unplanned	Withdrawal unavailability	2020-01-23T06:34:23+00:00	2020-01-20T17:00:00+00:00	2020-01-24T18:00:00+00:00	GWh/d	121.5	220.8	342.3	Failure		21YGB-UKGASGRIDW	55WALDBOROUGH00H	SSE Hornsea Ltd	A0001033U.UK
Aldbrough	ALD_000000000000000000425_001	Dismissed	Unplanned	Withdrawal unavailability	2020-01-17T08:29:00+00:00	2020-01-20T17:00:00+00:00	2020-01-23T18:00:00+00:00	GWh/d	121.5	220.8	342.3	Failure		21YGB-UKGASGRIDW	55WALDBOROUGH00H	SSE Hornsea Ltd	A0001033U.UK
Aldbrough	ALD_000000000000000000337_003	Dismissed	Planned	Withdrawal unavailability	2019-06-11T22:52:10+01:00	2019-05-27T05:00:00+01:00	2019-06-14T05:00:00+01:00	GWh/d	121.5	220.8	342.3	Planned Outage		21YGB-UKGASGRIDW	55WALDBOROUGH00H	SSE Hornsea Ltd	A0001033U.UK
Aldbrough	ALD_000000000000000000337_002	Dismissed	Planned	Withdrawal unavailability	2019-06-10T19:34:04+01:00	2019-05-27T05:00:00+01:00	2019-06-12T05:00:00+01:00	GWh/d	121.5	220.8	342.3	Planned Outage		21YGB-UKGASGRIDW	55WALDBOROUGH00H	SSE Hornsea Ltd	A0001033U.UK
Aldbrough	ALD_000000000000000000337_001	Dismissed	Planned	Withdrawal unavailability	2019-04-01T14:49:36+01:00	2019-05-27T05:00:00+01:00	2019-06-11T05:00:00+01:00	GWh/d	121.5	220.8	342.3	Planned Outage		21YGB-UKGASGRIDW	55WALDBOROUGH00H	SSE Hornsea Ltd	A0001033U.UK
Aldbrough	ALD_000000000000000000339_003	Inactive	Unplanned	Withdrawal unavailability	2019-05-21T16:09:54+01:00	2019-05-19T05:00:00+01:00	2019-05-21T16:10:00+01:00	GWh/d	121.5	220.8	342.3	Failure		21YGB-UKGASGRIDW	55WALDBOROUGH00H	SSE Hornsea Ltd	A0001033U.UK
Aldbrough	ALD_000000000000000000339_002	Dismissed	Unplanned	Withdrawal unavailability	2019-05-19T13:12:32+01:00	2019-05-19T05:00:00+01:00	2019-05-21T18:00:00+01:00	GWh/d	121.5	220.8	342.3	Failure		21YGB-UKGASGRIDW	55WALDBOROUGH00H	SSE Hornsea Ltd	A0001033U.UK
Aldbrough	ALD_000000000000000000339_001	Dismissed	Unplanned	Withdrawal unavailability	2019-05-18T12:41:28+01:00	2019-05-19T05:00:00+01:00	2019-05-19T18:00:00+01:00	GWh/d	121.5	220.8	342.3	Failure		21YGB-UKGASGRIDW	55WALDBOROUGH00H	SSE Hornsea Ltd	A0001033U.UK
Aldbrough	ALD_000000000000000000336_002	Inactive	Planned	Withdrawal unavailability	2019-05-06T06:02:31+01:00	2019-05-01T05:00:00+01:00	2019-05-06T05:00:00+01:00	GWh/d	121.5	220.8	342.3	Planned Outage		21YGB-UKGASGRIDW	55WALDBOROUGH00H	SSE Hornsea Ltd	A0001033U.UK
Aldbrough	ALD_000000000000000000336_001	Dismissed	Planned	Withdrawal unavailability	2019-04-01T14:42:08+01:00	2019-05-01T05:00:00+01:00	2019-05-06T05:00:00+01:00	GWh/d	121.5	220.8	342.3	Planned Outage		21YGB-UKGASGRIDW	55WALDBOROUGH00H	SSE Hornsea Ltd	A0001033U.UK
Aldbrough	ALD_000000000000000000335_004	Inactive	Unplanned	Withdrawal unavailability	2019-04-11T23:22:25+01:00	2019-03-31T05:00:00+01:00	2019-04-12T23:21:00+01:00	GWh/d	121.5	220.8	342.3	Failure		21YGB-UKGASGRIDW	55WALDBOROUGH00H	SSE Hornsea Ltd	A0001033U.UK
Aldbrough	ALD_000000000000000000335_003	Dismissed	Unplanned	Withdrawal unavailability	2019-04-11T16:08:27+01:00	2019-03-31T05:00:00+01:00	2019-04-12T00:00:00+01:00	GWh/d	121.5	220.8	342.3	Failure		21YGB-UKGASGRIDW	55WALDBOROUGH00H	SSE Hornsea Ltd	A0001033U.UK
Aldbrough	ALD_000000000000000000335_002	Dismissed	Unplanned	Withdrawal unavailability	2019-04-05T10:49:11+01:00	2019-03-31T05:00:00+01:00	2019-04-11T18:00:00+01:00	GWh/d	121.5	220.8	342.3	Failure		21YGB-UKGASGRIDW	55WALDBOROUGH00H	SSE Hornsea Ltd	A0001033U.UK
Aldbrough	ALD_000000000000000000335_001	Dismissed	Unplanned	Withdrawal unavailability	2019-03-26T12:33:00+00:00	2019-03-31T05:00:00+01:00	2019-04-09T18:00:00+01:00	GWh/d	121.5	220.8	342.3	Failure		21YGB-UKGASGRIDW	55WALDBOROUGH00H	SSE Hornsea Ltd	A0001033U.UK
Aldbrough	ALD_000000000000000000309_003	Dismissed	Unplanned	Withdrawal unavailability	2018-12-12T23:23:42+00:00	2018-12-11T16:00:00+00:00	2018-12-12T23:23:00+00:00	GWh/d	121.5	220.8	342.3	Failure		21YGB-UKGASGRIDW	55WALDBOROUGH00H	SSE Hornsea Ltd	A0001033U.UK
Aldbrough	ALD_000000000000000000309_002	Dismissed	Unplanned	Withdrawal unavailability	2018-12-12T16:31:31+00:00	2018-12-11T16:00:00+00:00	2018-12-12T23:59:00+00:00	GWh/d	121.5	220.8	342.3	Failure		21YGB-UKGASGRIDW	55WALDBOROUGH00H	SSE Hornsea Ltd	A0001033U.UK
Aldbrough	ALD_000000000000000000309_001	Dismissed	Unplanned	Withdrawal unavailability	2018-12-10T08:34:34+00:00	2018-12-11T16:00:00+00:00	2018-12-12T18:00:00+00:00	GWh/d	121.5	220.8	342.3	Failure		21YGB-UKGASGRIDW	55WALDBOROUGH00H	SSE Hornsea Ltd	A0001033U.UK
Aldbrough	ALD_000000000000000000293_002	Inactive	Unplanned	Withdrawal unavailability	2018-10-04T16:35:41+01:00	2018-09-26T08:43:00+01:00	2018-10-04T16:36:00+01:00	GWh/d	121.5	220.8	342.3	Failure		21YGB-UKGASGRIDW	55WALDBOROUGH00H	SSE Hornsea Ltd	A0001033U.UK
Aldbrough	ALD_000000000000000000293_001	Dismissed	Unplanned	Withdrawal unavailability	2018-09-26T08:44:53+01:00	2018-09-26T08:43:00+01:00	2018-10-07T18:00:00+01:00	GWh/d	121.5	220.8	342.3	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.