Last update at: 2019-08-22T10:00:00+01:00

**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 >
Atwick	ATW_000000000000000000346_002	Dismissed	Planned	Withdrawal unavailability	2019-07-27T13:46:57+01:00	2019-07-28T05:00:00+01:00	2019-08-11T18:00:00+01:00	GWh/d	30	0	130	Planned Outage	Planned outage	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
Atwick	ATW_000000000000000000359_002	Inactive	Planned	Injection unavailability	2019-08-07T15:05:49+01:00	2019-08-07T08:00:00+01:00	2019-08-07T15:06:00+01:00	GWh/d	30	0	30	Planned Outage		21YGB-UKGASGRIDW	55WATWICK-SSE00J	SSE Hornsea Ltd	A0001033U.UK
Atwick	ATW_000000000000000000359_001	Dismissed	Planned	Injection unavailability	2019-06-25T20:03:33+01:00	2019-08-07T08:00:00+01:00	2019-08-07T16:00:00+01:00	GWh/d	30	0	30	Planned Outage		21YGB-UKGASGRIDW	55WATWICK-SSE00J	SSE Hornsea Ltd	A0001033U.UK
Atwick	ATW_000000000000000000360_002	Inactive	Planned	Withdrawal unavailability	2019-08-07T15:05:06+01:00	2019-08-07T08:00:00+01:00	2019-08-07T15:05:00+01:00	GWh/d	67.4	0	130	Planned Outage		21YGB-UKGASGRIDW	55WATWICK-SSE00J	SSE Hornsea Ltd	A0001033U.UK
Atwick	ATW_000000000000000000360_001	Dismissed	Planned	Withdrawal unavailability	2019-06-25T20:04:31+01:00	2019-08-07T08:00:00+01:00	2019-08-07T16:00:00+01:00	GWh/d	67.4	0	130	Planned Outage		21YGB-UKGASGRIDW	55WATWICK-SSE00J	SSE Hornsea Ltd	A0001033U.UK
Atwick	ATW_000000000000000000358_002	Inactive	Planned	Withdrawal unavailability	2019-08-06T15:49:34+01:00	2019-08-06T08:00:00+01:00	2019-08-06T15:49:00+01:00	GWh/d	67.4	0	130	Planned Outage		21YGB-UKGASGRIDW	55WATWICK-SSE00J	SSE Hornsea Ltd	A0001033U.UK
Atwick	ATW_000000000000000000358_001	Dismissed	Planned	Withdrawal unavailability	2019-06-25T20:00:33+01:00	2019-08-06T08:00:00+01:00	2019-08-06T16:00:00+01:00	GWh/d	67.4	0	130	Planned Outage		21YGB-UKGASGRIDW	55WATWICK-SSE00J	SSE Hornsea Ltd	A0001033U.UK
Atwick	ATW_000000000000000000357_002	Inactive	Planned	Injection unavailability	2019-08-06T15:49:00+01:00	2019-08-06T08:00:00+01:00	2019-08-06T15:48:00+01:00	GWh/d	30	0	30	Planned Outage		21YGB-UKGASGRIDW	55WATWICK-SSE00J	SSE Hornsea Ltd	A0001033U.UK
Atwick	ATW_000000000000000000357_001	Dismissed	Planned	Injection unavailability	2019-06-25T19:59:02+01:00	2019-08-06T08:00:00+01:00	2019-08-06T16:00:00+01:00	GWh/d	30	0	30	Planned Outage		21YGB-UKGASGRIDW	55WATWICK-SSE00J	SSE Hornsea Ltd	A0001033U.UK
Atwick	ATW_000000000000000000354_002	Inactive	Planned	Withdrawal unavailability	2019-07-25T15:46:02+01:00	2019-07-25T08:00:00+01:00	2019-07-25T15:45:00+01:00	GWh/d	30	0	130	Planned Outage	Planned outage	21YGB-UKGASGRIDW	55WATWICK-SSE00J	SSE Hornsea Ltd	A0001033U.UK
Atwick	ATW_000000000000000000354_001	Dismissed	Planned	Withdrawal unavailability	2019-06-13T17:25:29+01:00	2019-07-25T08:00:00+01:00	2019-07-25T16:00:00+01:00	GWh/d	30	0	130	Planned Outage	Planned outage	21YGB-UKGASGRIDW	55WATWICK-SSE00J	SSE Hornsea Ltd	A0001033U.UK
Atwick	ATW_000000000000000000353_002	Inactive	Planned	Withdrawal unavailability	2019-07-24T15:55:54+01:00	2019-07-24T08:00:00+01:00	2019-07-24T15:54:00+01:00	GWh/d	30	0	130	Planned Outage	Planned outage	21YGB-UKGASGRIDW	55WATWICK-SSE00J	SSE Hornsea Ltd	A0001033U.UK
Atwick	ATW_000000000000000000353_001	Dismissed	Planned	Withdrawal unavailability	2019-06-13T17:22:59+01:00	2019-07-24T08:00:00+01:00	2019-07-24T16:00:00+01:00	GWh/d	30	0	130	Planned Outage	Planned outage	21YGB-UKGASGRIDW	55WATWICK-SSE00J	SSE Hornsea Ltd	A0001033U.UK
Atwick	ATW_000000000000000000352_002	Inactive	Planned	Withdrawal unavailability	2019-07-23T15:43:13+01:00	2019-07-23T08:00:00+01:00	2019-07-23T15:45:00+01:00	GWh/d	30	0	130	Planned Outage	Planned outage	21YGB-UKGASGRIDW	55WATWICK-SSE00J	SSE Hornsea Ltd	A0001033U.UK
Atwick	ATW_000000000000000000352_001	Dismissed	Planned	Withdrawal unavailability	2019-06-13T17:19:53+01:00	2019-07-23T08:00:00+01:00	2019-07-23T16:00:00+01:00	GWh/d	30	0	130	Planned Outage	Planned outage	21YGB-UKGASGRIDW	55WATWICK-SSE00J	SSE Hornsea Ltd	A0001033U.UK
Atwick	ATW_000000000000000000364_003	Inactive	Planned	Injection unavailability	2019-07-23T11:46:30+01:00	2019-07-23T10:00:00+01:00	2019-07-23T11:48:00+01:00	GWh/d	30	0	30	Planned Outage		21YGB-UKGASGRIDW	55WATWICK-SSE00J	SSE Hornsea Ltd	A0001033U.UK
Atwick	ATW_000000000000000000364_002	Dismissed	Planned	Injection unavailability	2019-07-15T08:59:23+01:00	2019-07-23T10:00:00+01:00	2019-07-23T12:00:00+01:00	GWh/d	30	0	30	Planned Outage		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_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_000000000000000000365_002	Inactive	Unplanned	Withdrawal unavailability	2019-07-19T09:02:32+01:00	2019-07-19T05:00:00+01:00	2019-07-19T08:00:00+01:00	GWh/d	342.3	0	342.3	Planned Outage		21YGB-UKGASGRIDW	55WALDBOROUGH00H	SSE Hornsea Ltd	A0001033U.UK
Aldbrough	ALD_000000000000000000366_002	Inactive	Unplanned	Injection unavailability	2019-07-19T09:02:32+01:00	2019-07-19T05:00:00+01:00	2019-07-19T08:00:00+01:00	GWh/d	311.56	0	311.56	Planned Outage		21YGB-UKGASGRIDW	55WALDBOROUGH00H	SSE Hornsea Ltd	A0001033U.UK
Aldbrough	ALD_000000000000000000366_001	Dismissed	Unplanned	Injection unavailability	2019-07-18T12:48:29+01:00	2019-07-19T05:00:00+01:00	2019-07-19T08:00:00+01:00	GWh/d	311.56	0	311.56	Planned Outage		21YGB-UKGASGRIDW	55WALDBOROUGH00H	SSE Hornsea Ltd	A0001033U.UK
Aldbrough	ALD_000000000000000000365_001	Dismissed	Unplanned	Withdrawal unavailability	2019-07-18T12:46:07+01:00	2019-07-19T05:00:00+01:00	2019-07-19T08:00:00+01:00	GWh/d	342.3	0	342.3	Planned Outage		21YGB-UKGASGRIDW	55WALDBOROUGH00H	SSE Hornsea Ltd	A0001033U.UK
Atwick	ATW_000000000000000000347_002	Inactive	Planned	Injection unavailability	2019-07-17T15:59:14+01:00	2019-07-17T08:00:00+01:00	2019-07-17T16:00:00+01:00	GWh/d	30	0	30	Planned Outage	Planned outage	21YGB-UKGASGRIDW	55WATWICK-SSE00J	SSE Hornsea Ltd	A0001033U.UK
Atwick	ATW_000000000000000000347_001	Dismissed	Planned	Injection unavailability	2019-06-13T16:43:56+01:00	2019-07-17T08:00:00+01:00	2019-07-17T16:00:00+01:00	GWh/d	30	0	30	Planned Outage	Planned outage	21YGB-UKGASGRIDW	55WATWICK-SSE00J	SSE Hornsea Ltd	A0001033U.UK
Atwick	ATW_000000000000000000348_002	Inactive	Planned	Withdrawal unavailability	2019-07-17T15:58:42+01:00	2019-07-17T08:00:00+01:00	2019-07-17T15:59:00+01:00	GWh/d	30	0	130	Planned Outage	Planned outage	21YGB-UKGASGRIDW	55WATWICK-SSE00J	SSE Hornsea Ltd	A0001033U.UK
Atwick	ATW_000000000000000000348_001	Dismissed	Planned	Withdrawal unavailability	2019-06-13T16:46:47+01:00	2019-07-17T08:00:00+01:00	2019-07-17T16:00:00+01:00	GWh/d	30	0	130	Planned Outage	Planned outage	21YGB-UKGASGRIDW	55WATWICK-SSE00J	SSE Hornsea Ltd	A0001033U.UK
Atwick	ATW_000000000000000000351_002	Dismissed	Planned	Injection unavailability	2019-06-25T19:54:19+01:00	2019-07-23T08:00:00+01:00	2019-07-23T16:00:00+01:00	GWh/d	30	0	30	Planned Outage	Planned outage	21YGB-UKGASGRIDW	55WATWICK-SSE00J	SSE Hornsea Ltd	A0001033U.UK
Atwick	ATW_000000000000000000351_001	Dismissed	Planned	Injection unavailability	2019-06-13T17:18:59+01:00	2019-07-23T08:00:00+01:00	2019-07-23T16:00:00+01:00	GWh/d	30	0	30	Planned Outage	Planned outage	21YGB-UKGASGRIDW	55WATWICK-SSE00J	SSE Hornsea Ltd	A0001033U.UK
Atwick	ATW_000000000000000000350_002	Dismissed	Planned	Withdrawal unavailability	2019-06-25T19:51:03+01:00	2019-07-22T08:00:00+01:00	2019-07-22T16:00:00+01:00	GWh/d	30	0	130	Planned Outage	Planned outage	21YGB-UKGASGRIDW	55WATWICK-SSE00J	SSE Hornsea Ltd	A0001033U.UK
Atwick	ATW_000000000000000000350_001	Dismissed	Planned	Withdrawal unavailability	2019-06-13T17:16:44+01:00	2019-07-22T08:00:00+01:00	2019-07-22T16:00:00+01:00	GWh/d	30	0	130	Planned Outage	Planned outage	21YGB-UKGASGRIDW	55WATWICK-SSE00J	SSE Hornsea Ltd	A0001033U.UK
Atwick	ATW_000000000000000000349_002	Dismissed	Planned	Injection unavailability	2019-06-25T19:50:44+01:00	2019-07-22T08:00:00+01:00	2019-07-22T16:00:00+01:00	GWh/d	30	0	30	Planned Outage	Planned outage	21YGB-UKGASGRIDW	55WATWICK-SSE00J	SSE Hornsea Ltd	A0001033U.UK
Atwick	ATW_000000000000000000349_001	Dismissed	Planned	Injection unavailability	2019-06-13T17:15:45+01:00	2019-07-22T08:00:00+01:00	2019-07-22T16:00:00+01:00	GWh/d	30	0	30	Planned Outage	Planned outage	21YGB-UKGASGRIDW	55WATWICK-SSE00J	SSE Hornsea Ltd	A0001033U.UK
Atwick	ATW_000000000000000000296_004	Dismissed	Planned	Withdrawal unavailability	2019-06-13T15:58:28+01:00	2019-07-13T05:00:00+01:00	2019-07-27T18:00:00+01:00	GWh/d	130	0	130	Planned Outage		21YGB-UKGASGRIDW	55WATWICK-SSE00J	SSE Hornsea Ltd	A0001033U.UK
Atwick	ATW_000000000000000000296_003	Dismissed	Planned	Withdrawal unavailability	2019-02-22T12:30:42+00:00	2019-07-13T05:00:00+01:00	2019-07-27T18:00:00+01:00	GWh/d	130	0	130	Planned Outage		21YGB-UKGASGRIDW	55WATWICK-SSE00J	SSE Hornsea Ltd	A0001033U.UK
Atwick	ATW_000000000000000000296_002	Dismissed	Planned	Withdrawal unavailability	2019-02-06T16:02:23+00:00	2019-07-14T05:00:00+01:00	2019-07-27T18:00:00+01:00	GWh/d	130	0	130	Planned Outage		21YGB-UKGASGRIDW	55WATWICK-SSE00J	SSE Hornsea Ltd	A0001033U.UK
Atwick	ATW_000000000000000000296_001	Dismissed	Planned	Withdrawal unavailability	2018-10-21T15:25:05+01:00	2019-06-30T05:00:00+01:00	2019-07-13T05:00:00+01:00	GWh/d	130	0	130	Planned Outage		21YGB-UKGASGRIDW	55WATWICK-SSE00J	SSE Hornsea Ltd	A0001033U.UK
Atwick	ATW_000000000000000000297_004	Dismissed	Planned	Injection unavailability	2019-06-13T15:58:07+01:00	2019-07-13T05:00:00+01:00	2019-07-22T18:00:00+01:00	GWh/d	30	0	30	Planned Outage		21YGB-UKGASGRIDW	55WATWICK-SSE00J	SSE Hornsea Ltd	A0001033U.UK
Atwick	ATW_000000000000000000297_003	Dismissed	Planned	Injection unavailability	2019-02-22T12:31:02+00:00	2019-07-13T05:00:00+01:00	2019-07-22T18:00:00+01:00	GWh/d	30	0	30	Planned Outage		21YGB-UKGASGRIDW	55WATWICK-SSE00J	SSE Hornsea Ltd	A0001033U.UK
Atwick	ATW_000000000000000000297_002	Dismissed	Planned	Injection unavailability	2019-02-06T16:01:44+00:00	2019-07-14T05:00:00+01:00	2019-07-22T18:00:00+01:00	GWh/d	30	0	30	Planned Outage		21YGB-UKGASGRIDW	55WATWICK-SSE00J	SSE Hornsea Ltd	A0001033U.UK
Atwick	ATW_000000000000000000297_001	Dismissed	Planned	Injection unavailability	2018-10-21T15:29:13+01:00	2019-06-30T05:00:00+01:00	2019-07-08T05:00:00+01:00	GWh/d	30	0	30	Planned Outage		21YGB-UKGASGRIDW	55WATWICK-SSE00J	SSE Hornsea Ltd	A0001033U.UK
Aldbrough	ALD_000000000000000000343_001	Inactive	Unplanned	Withdrawal unavailability	2019-06-11T13:32:52+01:00	2019-06-11T12:00:00+01:00	2019-06-11T13:10:00+01:00	GWh/d	342.3	0	342.3	Failure		21YGB-UKGASGRIDW	55WALDBOROUGH00H	SSE Hornsea Ltd	A0001033U.UK
Aldbrough	ALD_000000000000000000342_001	Inactive	Unplanned	Withdrawal unavailability	2019-06-04T17:02:57+01:00	2019-06-04T14:50:00+01:00	2019-06-04T16:40:00+01:00	GWh/d	342.3	0	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.