Last update at: 2024-04-21T16:00:00+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
< 4 5 6 7 8 >
Aldbrough	ALD_000000000000000000466_002	Dismissed	Planned	Withdrawal unavailability	2021-10-06T22:32:46+01:00	2022-05-08T05:00:00+01:00	2022-05-21T18:00:00+01:00	GWh/d	342.3	0	342.3	Planned Outage	Full Site Outage	21YGB-UKGASGRIDW	55WALDBOROUGH00H	SSE Hornsea Ltd	A0001033U.UK
Aldbrough	ALD_000000000000000000466_001	Dismissed	Planned	Withdrawal unavailability	2020-07-11T15:43:18+01:00	2022-05-08T05:00:00+01:00	2022-05-20T18:00:00+01:00	GWh/d	342.3	0	342.3	Planned Outage	Full Site Outage	21YGB-UKGASGRIDW	55WALDBOROUGH00H	SSE Hornsea Ltd	A0001033U.UK
Aldbrough	ALD_000000000000000000668_003	Inactive	Unplanned	Withdrawal unavailability	2022-04-29T13:19:20+01:00	2022-04-22T13:00:00+01:00	2022-04-29T13:20:00+01:00	GWh/d	342.3	0	342.3	Failure	Production T1/T2	21YGB-UKGASGRIDW	55WALDBOROUGH00H	SSE Hornsea Ltd	A0001033U.UK
Aldbrough	ALD_000000000000000000668_002	Dismissed	Unplanned	Withdrawal unavailability	2022-04-22T15:12:08+01:00	2022-04-22T13:00:00+01:00	2022-05-01T05:00:00+01:00	GWh/d	342.3	0	342.3	Failure	Production T1/T2	21YGB-UKGASGRIDW	55WALDBOROUGH00H	SSE Hornsea Ltd	A0001033U.UK
Atwick	ATW_000000000000000000664_005	Inactive	Unplanned	Injection unavailability	2022-04-05T15:25:18+01:00	2022-04-04T07:00:00+01:00	2022-04-05T15:30:00+01:00	GWh/d	30	0	30	Failure		21YGB-UKGASGRIDW	55WATWICK-SSE00J	SSE Hornsea Ltd	A0001033U.UK
Atwick	ATW_000000000000000000664_004	Dismissed	Unplanned	Injection unavailability	2022-04-04T16:27:34+01:00	2022-04-04T07:00:00+01:00	2022-04-05T16:00:00+01:00	GWh/d	30	0	30	Failure		21YGB-UKGASGRIDW	55WATWICK-SSE00J	SSE Hornsea Ltd	A0001033U.UK
Atwick	ATW_000000000000000000664_003	Dismissed	Unplanned	Injection unavailability	2022-04-03T23:07:29+01:00	2022-04-04T07:00:00+01:00	2022-04-04T21:00:00+01:00	GWh/d	30	0	30	Failure		21YGB-UKGASGRIDW	55WATWICK-SSE00J	SSE Hornsea Ltd	A0001033U.UK
Atwick	ATW_000000000000000000664_002	Dismissed	Unplanned	Injection unavailability	2022-04-03T23:07:12+01:00	2022-04-04T07:00:00+01:00	2022-04-04T20:00:00+01:00	GWh/d	30	0	30	Failure		21YGB-UKGASGRIDW	55WATWICK-SSE00J	SSE Hornsea Ltd	A0001033U.UK
Atwick	ATW_000000000000000000664_001	Dismissed	Unplanned	Injection unavailability	2022-04-03T14:00:31+01:00	2022-04-04T05:00:00+01:00	2022-04-04T20:00:00+01:00	GWh/d	30	0	30	Failure		21YGB-UKGASGRIDW	55WATWICK-SSE00J	SSE Hornsea Ltd	A0001033U.UK
Aldbrough	ALD_000000000000000000655_002	Inactive	Planned	Injection unavailability	2022-03-24T09:18:19+00:00	2022-03-24T05:00:00+00:00	2022-03-24T09:00:00+00:00	GWh/d	311.56	0	311.56	Planned Outage	132KV Switchover	21YGB-UKGASGRIDW	55WALDBOROUGH00H	SSE Hornsea Ltd	A0001033U.UK
Aldbrough	ALD_000000000000000000655_001	Dismissed	Planned	Injection unavailability	2022-03-16T14:46:23+00:00	2022-03-24T05:00:00+00:00	2022-03-24T09:00:00+00:00	GWh/d	311.56	0	311.56	Planned Outage	132KV Switchover	21YGB-UKGASGRIDW	55WALDBOROUGH00H	SSE Hornsea Ltd	A0001033U.UK
Aldbrough	ALD_000000000000000000656_002	Inactive	Planned	Withdrawal unavailability	2022-03-24T09:18:04+00:00	2022-03-24T05:00:00+00:00	2022-03-24T09:00:00+00:00	GWh/d	342.3	0	342.3	Planned Outage	132KV Switchover	21YGB-UKGASGRIDW	55WALDBOROUGH00H	SSE Hornsea Ltd	A0001033U.UK
Aldbrough	ALD_000000000000000000656_001	Dismissed	Planned	Withdrawal unavailability	2022-03-16T14:47:31+00:00	2022-03-24T05:00:00+00:00	2022-03-24T09:00:00+00:00	GWh/d	342.3	0	342.3	Planned Outage	132KV Switchover	21YGB-UKGASGRIDW	55WALDBOROUGH00H	SSE Hornsea Ltd	A0001033U.UK
Aldbrough	ALD_000000000000000000653_002	Inactive	Unplanned	Injection unavailability	2022-03-07T08:23:38+00:00	2022-03-07T02:05:00+00:00	2022-03-07T08:15:00+00:00	GWh/d	311.56	0	311.56	Failure		21YGB-UKGASGRIDW	55WALDBOROUGH00H	SSE Hornsea Ltd	A0001033U.UK
Aldbrough	ALD_000000000000000000653_001	Dismissed	Unplanned	Injection unavailability	2022-03-07T02:06:03+00:00	2022-03-07T02:05:00+00:00	2022-03-07T12:00:00+00:00	GWh/d	311.56	0	311.56	Failure		21YGB-UKGASGRIDW	55WALDBOROUGH00H	SSE Hornsea Ltd	A0001033U.UK
Aldbrough	ALD_000000000000000000654_002	Inactive	Unplanned	Withdrawal unavailability	2022-03-07T08:23:05+00:00	2022-03-07T05:35:00+00:00	2022-03-07T08:15:00+00:00	GWh/d	342.3	0	342.3	Failure		21YGB-UKGASGRIDW	55WALDBOROUGH00H	SSE Hornsea Ltd	A0001033U.UK
Aldbrough	ALD_000000000000000000654_001	Dismissed	Unplanned	Withdrawal unavailability	2022-03-07T05:36:31+00:00	2022-03-07T05:35:00+00:00	2022-03-07T10:00:00+00:00	GWh/d	342.3	0	342.3	Failure		21YGB-UKGASGRIDW	55WALDBOROUGH00H	SSE Hornsea Ltd	A0001033U.UK
Atwick	ATW_000000000000000000651_002	Inactive	Unplanned	Withdrawal unavailability	2022-02-24T12:33:11+00:00	2022-02-24T10:45:00+00:00	2022-02-24T12:30:00+00:00	GWh/d	100	0	130	Failure		21YGB-UKGASGRIDW	55WATWICK-SSE00J	SSE Hornsea Ltd	A0001033U.UK
Atwick	ATW_000000000000000000651_001	Dismissed	Unplanned	Withdrawal unavailability	2022-02-24T11:32:18+00:00	2022-02-24T10:45:00+00:00	2022-02-24T12:45:00+00:00	GWh/d	100	0	130	Failure		21YGB-UKGASGRIDW	55WATWICK-SSE00J	SSE Hornsea Ltd	A0001033U.UK
Atwick	ATW_000000000000000000652_002	Inactive	Unplanned	Injection unavailability	2022-02-24T12:32:45+00:00	2022-02-24T10:45:00+00:00	2022-02-24T12:30:00+00:00	GWh/d	30	0	30	Failure		21YGB-UKGASGRIDW	55WATWICK-SSE00J	SSE Hornsea Ltd	A0001033U.UK
Atwick	ATW_000000000000000000652_001	Dismissed	Unplanned	Injection unavailability	2022-02-24T11:33:13+00:00	2022-02-24T10:45:00+00:00	2022-02-24T12:45:00+00:00	GWh/d	30	0	30	Failure		21YGB-UKGASGRIDW	55WATWICK-SSE00J	SSE Hornsea Ltd	A0001033U.UK
Atwick	ATW_000000000000000000643_002	Inactive	Unplanned	Withdrawal unavailability	2022-01-31T07:29:54+00:00	2022-01-30T20:40:00+00:00	2022-01-31T10:00:00+00:00	GWh/d	130	0	130	Failure		21YGB-UKGASGRIDW	55WATWICK-SSE00J	SSE Hornsea Ltd	A0001033U.UK
Atwick	ATW_000000000000000000643_001	Dismissed	Unplanned	Withdrawal unavailability	2022-01-30T21:03:13+00:00	2022-01-30T20:40:00+00:00	2022-01-31T10:00:00+00:00	GWh/d	130	0	130	Failure		21YGB-UKGASGRIDW	55WATWICK-SSE00J	SSE Hornsea Ltd	A0001033U.UK
Atwick	ATW_000000000000000000625_002	Inactive	Planned	Injection unavailability	2022-01-15T14:59:07+00:00	2022-01-15T08:00:00+00:00	2022-01-15T16:00:00+00:00	GWh/d	30	0	30	Planned Outage		21YGB-UKGASGRIDW	55WATWICK-SSE00J	SSE Hornsea Ltd	A0001033U.UK
Atwick	ATW_000000000000000000625_001	Dismissed	Planned	Injection unavailability	2021-12-16T14:07:39+00:00	2022-01-15T08:00:00+00:00	2022-01-15T16:00:00+00:00	GWh/d	30	0	30	Planned Outage		21YGB-UKGASGRIDW	55WATWICK-SSE00J	SSE Hornsea Ltd	A0001033U.UK
Atwick	ATW_000000000000000000626_002	Inactive	Planned	Withdrawal unavailability	2022-01-15T14:58:36+00:00	2022-01-15T08:00:00+00:00	2022-01-15T16:00:00+00:00	GWh/d	130	0	130	Planned Outage		21YGB-UKGASGRIDW	55WATWICK-SSE00J	SSE Hornsea Ltd	A0001033U.UK
Atwick	ATW_000000000000000000626_001	Dismissed	Planned	Withdrawal unavailability	2021-12-16T14:08:31+00:00	2022-01-15T08:00:00+00:00	2022-01-15T16:00:00+00:00	GWh/d	130	0	130	Planned Outage		21YGB-UKGASGRIDW	55WATWICK-SSE00J	SSE Hornsea Ltd	A0001033U.UK
Atwick	ATW_000000000000000000635_002	Inactive	Unplanned	Withdrawal unavailability	2022-01-13T16:37:33+00:00	2022-01-13T14:20:00+00:00	2022-01-13T16:30:00+00:00	GWh/d	130	0	130	Failure		21YGB-UKGASGRIDW	55WATWICK-SSE00J	SSE Hornsea Ltd	A0001033U.UK
Atwick	ATW_000000000000000000635_001	Dismissed	Unplanned	Withdrawal unavailability	2022-01-13T14:26:34+00:00	2022-01-13T14:20:00+00:00	2022-01-13T18:00:00+00:00	GWh/d	130	0	130	Failure		21YGB-UKGASGRIDW	55WATWICK-SSE00J	SSE Hornsea Ltd	A0001033U.UK
Atwick	ATW_000000000000000000634_002	Inactive	Unplanned	Injection unavailability	2022-01-13T16:37:09+00:00	2022-01-13T14:20:00+00:00	2022-01-13T16:30:00+00:00	GWh/d	30	0	30	Failure		21YGB-UKGASGRIDW	55WATWICK-SSE00J	SSE Hornsea Ltd	A0001033U.UK
Atwick	ATW_000000000000000000634_001	Dismissed	Unplanned	Injection unavailability	2022-01-13T14:25:34+00:00	2022-01-13T14:20:00+00:00	2022-01-13T18:00:00+00:00	GWh/d	30	0	30	Failure		21YGB-UKGASGRIDW	55WATWICK-SSE00J	SSE Hornsea Ltd	A0001033U.UK
Aldbrough	ALD_000000000000000000632_003	Inactive	Unplanned	Injection unavailability	2022-01-10T22:53:09+00:00	2022-01-10T06:30:00+00:00	2022-01-10T22:55:00+00:00	GWh/d	311.56	0	311.56	Failure	Power loss - full site/ Nitrogen unit failure caused by power loss	21YGB-UKGASGRIDW	55WALDBOROUGH00H	SSE Hornsea Ltd	A0001033U.UK
Aldbrough	ALD_000000000000000000632_002	Dismissed	Unplanned	Injection unavailability	2022-01-10T11:19:13+00:00	2022-01-10T06:30:00+00:00	2022-01-12T18:00:00+00:00	GWh/d	311.56	0	311.56	Failure	Power loss - full site/ Nitrogen unit failure caused by power loss	21YGB-UKGASGRIDW	55WALDBOROUGH00H	SSE Hornsea Ltd	A0001033U.UK
Aldbrough	ALD_000000000000000000632_001	Dismissed	Unplanned	Injection unavailability	2022-01-10T06:43:39+00:00	2022-01-10T06:30:00+00:00	2022-01-10T12:00:00+00:00	GWh/d	311.56	0	311.56	Failure	Power loss - full site	21YGB-UKGASGRIDW	55WALDBOROUGH00H	SSE Hornsea Ltd	A0001033U.UK
Aldbrough	ALD_000000000000000000633_003	Inactive	Unplanned	Withdrawal unavailability	2022-01-10T16:23:04+00:00	2022-01-10T06:30:00+00:00	2022-01-10T16:23:00+00:00	GWh/d	342.3	0	342.3	Failure	Power Loss - Full Site/ Loss of nitrogen unit due to powerloss	21YGB-UKGASGRIDW	55WALDBOROUGH00H	SSE Hornsea Ltd	A0001033U.UK
Aldbrough	ALD_000000000000000000633_002	Dismissed	Unplanned	Withdrawal unavailability	2022-01-10T11:20:31+00:00	2022-01-10T06:30:00+00:00	2022-01-10T20:00:00+00:00	GWh/d	342.3	0	342.3	Failure	Power Loss - Full Site/ Loss of nitrogen unit due to powerloss	21YGB-UKGASGRIDW	55WALDBOROUGH00H	SSE Hornsea Ltd	A0001033U.UK
Aldbrough	ALD_000000000000000000633_001	Dismissed	Unplanned	Withdrawal unavailability	2022-01-10T06:44:48+00:00	2022-01-10T06:30:00+00:00	2022-01-10T12:00:00+00:00	GWh/d	342.3	0	342.3	Failure	Power Loss - Full Site	21YGB-UKGASGRIDW	55WALDBOROUGH00H	SSE Hornsea Ltd	A0001033U.UK
Aldbrough	ALD_000000000000000000629_001	Dismissed	Unplanned	Withdrawal unavailability	2021-12-19T20:40:49+00:00	2021-12-19T20:30:00+00:00	2021-12-20T12:00:00+00:00	GWh/d	342.3	0	342.3	Failure		21YGB-UKGASGRIDW	55WALDBOROUGH00H	SSE Hornsea Ltd	A0001033U.UK
Aldbrough	ALD_000000000000000000622_003	Inactive	Planned	Storage unavailability	2021-12-14T17:01:53+00:00	2021-12-14T08:00:00+00:00	2021-12-14T16:00:00+00:00	TWh	2.4558177	0	2.4558177	Planned Outage	PCS Upgrade	21YGB-UKGASGRIDW	55WALDBOROUGH00H	SSE Hornsea Ltd	A0001033U.UK
Aldbrough	ALD_000000000000000000623_002	Inactive	Planned	Injection unavailability	2021-12-14T17:01:53+00:00	2021-12-14T08:00:00+00:00	2021-12-14T16:00:00+00:00	GWh/d	311.56	0	311.56	Planned Outage	PCS Upgrade	21YGB-UKGASGRIDW	55WALDBOROUGH00H	SSE Hornsea Ltd	A0001033U.UK
Aldbrough	ALD_000000000000000000624_002	Inactive	Planned	Withdrawal unavailability	2021-12-14T17:01:53+00:00	2021-12-14T08:00:00+00:00	2021-12-14T16:00:00+00:00	GWh/d	342.3	0	342.3	Planned Outage	PCS Upgrade	21YGB-UKGASGRIDW	55WALDBOROUGH00H	SSE Hornsea Ltd	A0001033U.UK
Aldbrough	ALD_000000000000000000622_002	Dismissed	Planned	Storage unavailability	2021-12-08T14:05:06+00:00	2021-12-14T08:00:00+00:00	2021-12-14T16:00:00+00:00	TWh	2.4558177	0	2.4558177	Planned Outage	PCS Upgrade	21YGB-UKGASGRIDW	55WALDBOROUGH00H	SSE Hornsea Ltd	A0001033U.UK
Aldbrough	ALD_000000000000000000622_001	Dismissed	Planned	Storage unavailability	2021-12-08T14:04:26+00:00	2021-12-14T08:00:00+00:00	2021-12-14T16:00:00+00:00	TWh	2.4558177	0	2.4558177	Planned Outage		21YGB-UKGASGRIDW	55WALDBOROUGH00H	SSE Hornsea Ltd	A0001033U.UK
Aldbrough	ALD_000000000000000000623_001	Dismissed	Planned	Injection unavailability	2021-12-08T14:06:34+00:00	2021-12-14T08:00:00+00:00	2021-12-14T16:00:00+00:00	GWh/d	311.56	0	311.56	Planned Outage	PCS Upgrade	21YGB-UKGASGRIDW	55WALDBOROUGH00H	SSE Hornsea Ltd	A0001033U.UK
Aldbrough	ALD_000000000000000000624_001	Dismissed	Planned	Withdrawal unavailability	2021-12-08T14:08:03+00:00	2021-12-14T08:00:00+00:00	2021-12-14T16:00:00+00:00	GWh/d	342.3	0	342.3	Planned Outage	PCS Upgrade	21YGB-UKGASGRIDW	55WALDBOROUGH00H	SSE Hornsea Ltd	A0001033U.UK
Atwick	ATW_000000000000000000620_002	Inactive	Unplanned	Withdrawal unavailability	2021-11-25T23:30:47+00:00	2021-11-25T20:30:00+00:00	2021-11-25T23:22:00+00:00	GWh/d	130	0	130	Failure		21YGB-UKGASGRIDW	55WATWICK-SSE00J	SSE Hornsea Ltd	A0001033U.UK
Atwick	ATW_000000000000000000620_001	Dismissed	Unplanned	Withdrawal unavailability	2021-11-25T21:09:10+00:00	2021-11-25T20:30:00+00:00	2021-11-26T02:00:00+00:00	GWh/d	130	0	130	Failure		21YGB-UKGASGRIDW	55WATWICK-SSE00J	SSE Hornsea Ltd	A0001033U.UK
Atwick	ATW_000000000000000000619_002	Inactive	Unplanned	Injection unavailability	2021-11-25T23:30:13+00:00	2021-11-25T20:30:00+00:00	2021-11-25T23:22:00+00:00	GWh/d	30	0	30	Failure		21YGB-UKGASGRIDW	55WATWICK-SSE00J	SSE Hornsea Ltd	A0001033U.UK
Atwick	ATW_000000000000000000619_001	Dismissed	Unplanned	Injection unavailability	2021-11-25T21:07:53+00:00	2021-11-25T20:30:00+00:00	2021-11-26T02:00:00+00:00	GWh/d	30	0	30	Failure		21YGB-UKGASGRIDW	55WATWICK-SSE00J	SSE Hornsea Ltd	A0001033U.UK
Atwick	ATW_000000000000000000598_002	Inactive	Planned	Injection unavailability	2021-10-22T16:16:59+01:00	2021-10-22T09:00:00+01:00	2021-10-22T16:00:00+01:00	GWh/d	30	0	30	Planned Outage		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.