Last update at: 2017-10-19T11:30:00+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 >
Atwick	ATW_000000000000000000203_001	Active	Unplanned	Withdrawal unavailability	2017-10-19T11:11:12+01:00	2017-10-25T09:00:00+01:00	2017-10-26T12:00:00+01:00	GWh/d	130	0	130	Planned Outage	Unplanned	21YGB-UKGASGRIDW	55WATWICK-SSE00J	SSE Hornsea Ltd	A0001033U.UK
Atwick	ATW_000000000000000000200_001	Active	Unplanned	Injection unavailability	2017-10-10T09:32:26+01:00	2017-11-21T08:00:00+00:00	2017-11-21T16:00:00+00:00	GWh/d	30	0	30	Planned Outage	Unplanned	21YGB-UKGASGRIDW	55WATWICK-SSE00J	SSE Hornsea Ltd	A0001033U.UK
Atwick	ATW_000000000000000000199_001	Active	Unplanned	Withdrawal unavailability	2017-10-10T09:30:46+01:00	2017-11-21T08:00:00+00:00	2017-11-21T16:00:00+00:00	GWh/d	130	0	130	Planned Outage	Unplanned	21YGB-UKGASGRIDW	55WATWICK-SSE00J	SSE Hornsea Ltd	A0001033U.UK
Atwick	ATW_000000000000000000198_002	Inactive	Unplanned	Withdrawal unavailability	2017-09-22T09:28:10+01:00	2017-09-21T21:20:00+01:00	2017-09-22T09:23:00+01:00	GWh/d	32.56	0	130	Failure	Failure	21YGB-UKGASGRIDW	55WATWICK-SSE00J	SSE Hornsea Ltd	A0001033U.UK
Atwick	ATW_000000000000000000198_001	Dismissed	Unplanned	Withdrawal unavailability	2017-09-21T21:37:12+01:00	2017-09-21T21:20:00+01:00	2017-09-22T12:00:00+01:00	GWh/d	32.56	0	130	Failure	Failure	21YGB-UKGASGRIDW	55WATWICK-SSE00J	SSE Hornsea Ltd	A0001033U.UK
Aldbrough	ALD_000000000000000000195_004	Dismissed	Unplanned	Withdrawal unavailability	2017-09-21T15:24:54+01:00	2017-09-21T05:00:00+01:00	2017-09-21T15:23:00+01:00	GWh/d	342	0	342	Planned Outage	Unplanned	21YGB-UKGASGRIDW	55WALDBOROUGH00H	SSE Hornsea Ltd	A0001033U.UK
Aldbrough	ALD_000000000000000000195_003	Dismissed	Unplanned	Withdrawal unavailability	2017-09-21T15:05:45+01:00	2017-09-21T05:00:00+01:00	2017-09-21T15:30:00+01:00	GWh/d	342	0	342	Planned Outage	Unplanned	21YGB-UKGASGRIDW	55WALDBOROUGH00H	SSE Hornsea Ltd	A0001033U.UK
Aldbrough	ALD_000000000000000000195_002	Dismissed	Unplanned	Withdrawal unavailability	2017-09-21T14:40:29+01:00	2017-09-21T05:00:00+01:00	2017-09-21T15:00:00+01:00	GWh/d	342	0	342	Planned Outage	Unplanned	21YGB-UKGASGRIDW	55WALDBOROUGH00H	SSE Hornsea Ltd	A0001033U.UK
Aldbrough	ALD_000000000000000000195_001	Dismissed	Unplanned	Withdrawal unavailability	2017-09-05T11:08:29+01:00	2017-09-21T05:00:00+01:00	2017-09-21T14:30:00+01:00	GWh/d	342	0	342	Planned Outage	Unplanned	21YGB-UKGASGRIDW	55WALDBOROUGH00H	SSE Hornsea Ltd	A0001033U.UK
Atwick	ATW_000000000000000000197_004	Inactive	Unplanned	Withdrawal unavailability	2017-09-13T11:16:12+01:00	2017-09-13T08:15:00+01:00	2017-09-13T11:15:00+01:00	GWh/d	32.56	0	130	Failure	Failure	21YGB-UKGASGRIDW	55WATWICK-SSE00J	SSE Hornsea Ltd	A0001033U.UK
Atwick	ATW_000000000000000000197_003	Dismissed	Unplanned	Withdrawal unavailability	2017-09-13T09:10:51+01:00	2017-09-13T08:15:00+01:00	2017-09-13T17:00:00+01:00	GWh/d	32.56	0	130	Failure	Failure	21YGB-UKGASGRIDW	55WATWICK-SSE00J	SSE Hornsea Ltd	A0001033U.UK
Atwick	ATW_000000000000000000197_001	Dismissed	Unplanned	Withdrawal unavailability	2017-09-13T09:06:56+01:00	2017-09-13T08:15:00+01:00	2017-09-13T17:00:00+01:00	GWh/d	32.4	0	130	Failure	Failure	21YGB-UKGASGRIDW	55WATWICK-SSE00J	SSE Hornsea Ltd	A0001033U.UK
Atwick	ATW_000000000000000000196_002	Inactive	Unplanned	Withdrawal unavailability	2017-09-12T22:35:18+01:00	2017-09-12T19:30:00+01:00	2017-09-13T22:34:00+01:00	GWh/d	32.56	0	130	Failure	Unplanned	21YGB-UKGASGRIDW	55WATWICK-SSE00J	SSE Hornsea Ltd	A0001033U.UK
Atwick	ATW_000000000000000000196_001	Dismissed	Unplanned	Withdrawal unavailability	2017-09-12T19:44:11+01:00	2017-09-12T19:30:00+01:00	2017-09-13T18:00:00+01:00	GWh/d	32.56	0	130	Failure	Unplanned	21YGB-UKGASGRIDW	55WATWICK-SSE00J	SSE Hornsea Ltd	A0001033U.UK
Atwick	ATW_000000000000000000163_003	Inactive	Unplanned	Injection unavailability	2017-09-07T16:22:10+01:00	2017-09-07T08:00:00+01:00	2017-09-07T16:11:00+01:00	GWh/d	30	0	30	Planned Outage	Unplanned	21YGB-UKGASGRIDW	55WATWICK-SSE00J	SSE Hornsea Ltd	A0001033U.UK
Atwick	ATW_000000000000000000163_002	Dismissed	Unplanned	Injection unavailability	2017-09-07T08:59:02+01:00	2017-09-07T08:00:00+01:00	2017-09-07T18:00:00+01:00	GWh/d	30	0	30	Planned Outage	Unplanned	21YGB-UKGASGRIDW	55WATWICK-SSE00J	SSE Hornsea Ltd	A0001033U.UK
Atwick	ATW_000000000000000000163_001	Dismissed	Unplanned	Injection unavailability	2017-05-03T16:35:32+01:00	2017-09-07T08:00:00+01:00	2017-09-07T20:00:00+01:00	GWh/d	30	0	30	Planned Outage	Unplanned	21YGB-UKGASGRIDW	55WATWICK-SSE00J	SSE Hornsea Ltd	A0001033U.UK
Atwick	ATW_000000000000000000162_005	Inactive	Unplanned	Withdrawal unavailability	2017-09-07T16:20:35+01:00	2017-09-07T08:00:00+01:00	2017-09-07T16:11:00+01:00	GWh/d	32.56	0	130	Planned Outage	Unplanned	21YGB-UKGASGRIDW	55WATWICK-SSE00J	SSE Hornsea Ltd	A0001033U.UK
Atwick	ATW_000000000000000000162_004	Dismissed	Unplanned	Withdrawal unavailability	2017-09-07T08:58:29+01:00	2017-09-07T08:00:00+01:00	2017-09-07T18:00:00+01:00	GWh/d	32.56	0	130	Planned Outage	Unplanned	21YGB-UKGASGRIDW	55WATWICK-SSE00J	SSE Hornsea Ltd	A0001033U.UK
Atwick	ATW_000000000000000000162_003	Dismissed	Unplanned	Withdrawal unavailability	2017-08-11T04:51:51+01:00	2017-09-07T08:00:00+01:00	2017-09-07T20:00:00+01:00	GWh/d	32.56	0	130	Planned Outage	Unplanned	21YGB-UKGASGRIDW	55WATWICK-SSE00J	SSE Hornsea Ltd	A0001033U.UK
Atwick	ATW_000000000000000000162_002	Dismissed	Unplanned	Withdrawal unavailability	2017-06-15T16:37:38+01:00	2017-09-07T08:00:00+01:00	2017-09-07T20:00:00+01:00	GWh/d	130	0	130	Planned Outage	Unplanned	21YGB-UKGASGRIDW	55WATWICK-SSE00J	SSE Hornsea Ltd	A0001033U.UK
Atwick	ATW_000000000000000000162_001	Dismissed	Unplanned	Withdrawal unavailability	2017-05-03T16:35:02+01:00	2017-09-07T08:00:00+01:00	2017-09-07T20:00:00+01:00	GWh/d	32.56	0	130	Planned Outage	Unplanned	21YGB-UKGASGRIDW	55WATWICK-SSE00J	SSE Hornsea Ltd	A0001033U.UK
Atwick	ATW_000000000000000000161_002	Inactive	Unplanned	Injection unavailability	2017-09-06T17:02:32+01:00	2017-09-06T08:00:00+01:00	2017-09-06T16:00:00+01:00	GWh/d	30	0	30	Planned Outage	Unplanned	21YGB-UKGASGRIDW	55WATWICK-SSE00J	SSE Hornsea Ltd	A0001033U.UK
Atwick	ATW_000000000000000000161_001	Dismissed	Unplanned	Injection unavailability	2017-05-03T16:33:42+01:00	2017-09-06T08:00:00+01:00	2017-09-06T16:00:00+01:00	GWh/d	30	0	30	Planned Outage	Unplanned	21YGB-UKGASGRIDW	55WATWICK-SSE00J	SSE Hornsea Ltd	A0001033U.UK
Atwick	ATW_000000000000000000160_005	Inactive	Unplanned	Withdrawal unavailability	2017-09-06T17:00:19+01:00	2017-09-06T08:00:00+01:00	2017-09-06T17:00:00+01:00	GWh/d	32.56	0	130	Planned Outage	Unplanned	21YGB-UKGASGRIDW	55WATWICK-SSE00J	SSE Hornsea Ltd	A0001033U.UK
Atwick	ATW_000000000000000000160_004	Dismissed	Unplanned	Withdrawal unavailability	2017-09-06T15:25:38+01:00	2017-09-06T08:00:00+01:00	2017-09-06T17:00:00+01:00	GWh/d	32.56	0	130	Planned Outage	Unplanned	21YGB-UKGASGRIDW	55WATWICK-SSE00J	SSE Hornsea Ltd	A0001033U.UK
Atwick	ATW_000000000000000000160_003	Dismissed	Unplanned	Withdrawal unavailability	2017-08-11T04:51:11+01:00	2017-09-06T08:00:00+01:00	2017-09-06T16:00:00+01:00	GWh/d	32.56	0	130	Planned Outage	Unplanned	21YGB-UKGASGRIDW	55WATWICK-SSE00J	SSE Hornsea Ltd	A0001033U.UK
Atwick	ATW_000000000000000000160_002	Dismissed	Unplanned	Withdrawal unavailability	2017-06-15T16:37:18+01:00	2017-09-06T08:00:00+01:00	2017-09-06T16:00:00+01:00	GWh/d	130	0	130	Planned Outage	Unplanned	21YGB-UKGASGRIDW	55WATWICK-SSE00J	SSE Hornsea Ltd	A0001033U.UK
Atwick	ATW_000000000000000000160_001	Dismissed	Unplanned	Withdrawal unavailability	2017-05-03T16:31:07+01:00	2017-09-06T08:00:00+01:00	2017-09-06T16:00:00+01:00	GWh/d	32.56	0	130	Planned Outage	Unplanned	21YGB-UKGASGRIDW	55WATWICK-SSE00J	SSE Hornsea Ltd	A0001033U.UK
Atwick	ATW_000000000000000000159_003	Inactive	Unplanned	Injection unavailability	2017-09-05T17:22:49+01:00	2017-09-05T08:00:00+01:00	2017-09-05T17:20:00+01:00	GWh/d	30	0	30	Planned Outage	Unplanned	21YGB-UKGASGRIDW	55WATWICK-SSE00J	SSE Hornsea Ltd	A0001033U.UK
Atwick	ATW_000000000000000000159_002	Dismissed	Unplanned	Injection unavailability	2017-09-05T13:56:13+01:00	2017-09-05T08:00:00+01:00	2017-09-05T18:00:00+01:00	GWh/d	30	0	30	Planned Outage	Unplanned	21YGB-UKGASGRIDW	55WATWICK-SSE00J	SSE Hornsea Ltd	A0001033U.UK
Atwick	ATW_000000000000000000159_001	Dismissed	Unplanned	Injection unavailability	2017-05-03T16:30:11+01:00	2017-09-05T08:00:00+01:00	2017-09-05T16:00:00+01:00	GWh/d	30	0	30	Planned Outage	Unplanned	21YGB-UKGASGRIDW	55WATWICK-SSE00J	SSE Hornsea Ltd	A0001033U.UK
Atwick	ATW_000000000000000000158_005	Inactive	Unplanned	Withdrawal unavailability	2017-09-05T17:22:35+01:00	2017-09-05T08:00:00+01:00	2017-09-05T17:20:00+01:00	GWh/d	32.56	0	130	Planned Outage	Unplanned	21YGB-UKGASGRIDW	55WATWICK-SSE00J	SSE Hornsea Ltd	A0001033U.UK
Atwick	ATW_000000000000000000158_004	Dismissed	Unplanned	Withdrawal unavailability	2017-09-05T13:54:45+01:00	2017-09-05T08:00:00+01:00	2017-09-05T18:00:00+01:00	GWh/d	32.56	0	130	Planned Outage	Unplanned	21YGB-UKGASGRIDW	55WATWICK-SSE00J	SSE Hornsea Ltd	A0001033U.UK
Atwick	ATW_000000000000000000158_003	Dismissed	Unplanned	Withdrawal unavailability	2017-08-11T04:50:11+01:00	2017-09-05T08:00:00+01:00	2017-09-05T16:00:00+01:00	GWh/d	32.56	0	130	Planned Outage	Unplanned	21YGB-UKGASGRIDW	55WATWICK-SSE00J	SSE Hornsea Ltd	A0001033U.UK
Atwick	ATW_000000000000000000158_002	Dismissed	Unplanned	Withdrawal unavailability	2017-06-15T16:37:05+01:00	2017-09-05T08:00:00+01:00	2017-09-05T16:00:00+01:00	GWh/d	130	0	130	Planned Outage	Unplanned	21YGB-UKGASGRIDW	55WATWICK-SSE00J	SSE Hornsea Ltd	A0001033U.UK
Atwick	ATW_000000000000000000158_001	Dismissed	Unplanned	Withdrawal unavailability	2017-05-03T16:28:40+01:00	2017-09-05T08:00:00+01:00	2017-09-05T16:00:00+01:00	GWh/d	32.56	0	130	Planned Outage	Unplanned	21YGB-UKGASGRIDW	55WATWICK-SSE00J	SSE Hornsea Ltd	A0001033U.UK
Atwick	ATW_000000000000000000193_004	Inactive	Unplanned	Withdrawal unavailability	2017-08-31T14:53:54+01:00	2017-08-27T12:00:00+01:00	2017-08-31T14:47:00+01:00	GWh/d	99.6	0	130	Failure	Unplanned	21YGB-UKGASGRIDW	55WATWICK-SSE00J	SSE Hornsea Ltd	A0001033U.UK
Atwick	ATW_000000000000000000193_003	Dismissed	Unplanned	Withdrawal unavailability	2017-08-29T12:06:17+01:00	2017-08-27T12:00:00+01:00	2017-08-31T18:00:00+01:00	GWh/d	99.6	0	130	Failure	Unplanned	21YGB-UKGASGRIDW	55WATWICK-SSE00J	SSE Hornsea Ltd	A0001033U.UK
Atwick	ATW_000000000000000000193_002	Dismissed	Unplanned	Withdrawal unavailability	2017-08-28T01:07:03+01:00	2017-08-27T12:00:00+01:00	2017-08-29T18:00:00+01:00	GWh/d	99.6	0	130	Failure	Unplanned	21YGB-UKGASGRIDW	55WATWICK-SSE00J	SSE Hornsea Ltd	A0001033U.UK
Atwick	ATW_000000000000000000193_001	Dismissed	Unplanned	Withdrawal unavailability	2017-08-27T13:04:45+01:00	2017-08-27T12:00:00+01:00	2017-08-29T18:00:00+01:00	GWh/d	130	0	130	Failure	Unplanned	21YGB-UKGASGRIDW	55WATWICK-SSE00J	SSE Hornsea Ltd	A0001033U.UK
Atwick	ATW_000000000000000000192_003	Inactive	Unplanned	Injection unavailability	2017-08-31T14:53:29+01:00	2017-08-27T12:00:00+01:00	2017-08-31T14:47:00+01:00	GWh/d	30	0	30	Failure		21YGB-UKGASGRIDW	55WATWICK-SSE00J	SSE Hornsea Ltd	A0001033U.UK
Atwick	ATW_000000000000000000192_002	Dismissed	Unplanned	Injection unavailability	2017-08-29T12:06:34+01:00	2017-08-27T12:00:00+01:00	2017-08-31T18:00:00+01:00	GWh/d	30	0	30	Failure		21YGB-UKGASGRIDW	55WATWICK-SSE00J	SSE Hornsea Ltd	A0001033U.UK
Atwick	ATW_000000000000000000192_001	Dismissed	Unplanned	Injection unavailability	2017-08-27T13:03:28+01:00	2017-08-27T12:00:00+01:00	2017-08-29T18:00:00+01:00	GWh/d	30	0	30	Failure		21YGB-UKGASGRIDW	55WATWICK-SSE00J	SSE Hornsea Ltd	A0001033U.UK
Aldbrough	ALD_000000000000000000189_002	Dismissed	Unplanned	Withdrawal unavailability	2017-07-21T09:20:08+01:00	2017-07-28T08:00:00+01:00	2017-07-28T14:00:00+01:00	GWh/d	342	0	342	Planned Outage	Unplanned	21YGB-UKGASGRIDW	55WALDBOROUGH00H	SSE Hornsea Ltd	A0001033U.UK
Aldbrough	ALD_000000000000000000189_001	Dismissed	Unplanned	Withdrawal unavailability	2017-07-18T15:29:04+01:00	2017-07-28T08:00:00+01:00	2017-07-28T14:00:00+01:00	GWh/d	342	0	342	Planned Outage	Unplanned	21YGB-UKGASGRIDW	55WALDBOROUGH00H	SSE Hornsea Ltd	A0001033U.UK
Atwick	ATW_000000000000000000188_003	Dismissed	Unplanned	Withdrawal unavailability	2017-07-15T15:52:53+01:00	2017-07-15T08:00:00+01:00	2017-07-15T15:51:00+01:00	GWh/d	67.04	0	130	Planned Outage	Unplanned	21YGB-UKGASGRIDW	55WATWICK-SSE00J	SSE Hornsea Ltd	A0001033U.UK
Atwick	ATW_000000000000000000188_002	Dismissed	Unplanned	Withdrawal unavailability	2017-07-14T15:22:50+01:00	2017-07-15T08:00:00+01:00	2017-07-15T18:00:00+01:00	GWh/d	67.04	0	130	Planned Outage	Unplanned	21YGB-UKGASGRIDW	55WATWICK-SSE00J	SSE Hornsea Ltd	A0001033U.UK
Atwick	ATW_000000000000000000188_001	Dismissed	Unplanned	Withdrawal unavailability	2017-07-14T15:22:04+01:00	2017-07-15T08:00:00+01:00	2017-07-15T18:00:00+01:00	GWh/d	67.04	0	130	Planned Outage		21YGB-UKGASGRIDW	55WATWICK-SSE00J	SSE Hornsea Ltd	A0001033U.UK
Atwick	ATW_000000000000000000187_002	Inactive	Unplanned	Withdrawal unavailability	2017-07-14T15:13:21+01:00	2017-07-14T08:00:00+01:00	2017-07-14T15:00:00+01:00	GWh/d	67.04	0	130	Planned Outage	Unplanned	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.