Last update at: 2017-06-24T13:00:00+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 >
Atwick	ATW_000000000000000000177_004	Active	Unplanned	Withdrawal unavailability	2017-06-15T18:11:01+01:00	2017-08-28T15:00:00+01:00	2017-09-04T15:00:00+01:00	GWh/d	67.04	32.56	130	Planned Outage	Planned	21YGB-UKGASGRIDW	55WATWICK-SSE00J	SSE Hornsea Ltd	A0001033U.UK
Atwick	ATW_000000000000000000176_002	Active	Unplanned	Withdrawal unavailability	2017-06-15T16:56:44+01:00	2017-07-01T08:00:00+01:00	2017-07-24T18:00:00+01:00	GWh/d	32.4	67.04	130	Planned Outage	Planned	21YGB-UKGASGRIDW	55WATWICK-SSE00J	SSE Hornsea Ltd	A0001033U.UK
Atwick	ATW_000000000000000000149_005	Active	Unplanned	Withdrawal unavailability	2017-06-15T16:55:28+01:00	2017-07-25T08:00:00+01:00	2017-08-28T15:00:00+01:00	GWh/d	67.04	32.56	130	Planned Outage	Planned	21YGB-UKGASGRIDW	55WATWICK-SSE00J	SSE Hornsea Ltd	A0001033U.UK
Atwick	ATW_000000000000000000162_002	Active	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_000000000000000000160_002	Active	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_000000000000000000158_002	Active	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_000000000000000000118_007	Active	Unplanned	Withdrawal unavailability	2017-06-15T16:21:54+01:00	2017-01-29T19:00:00+00:00	2017-09-04T15:00:00+01:00	GWh/d	30.4	99.6	130	Planned Outage	Unplanned	21YGB-UKGASGRIDW	55WATWICK-SSE00J	SSE Hornsea Ltd	A0001033U.UK
Aldbrough	ALD_000000000000000000169_007	Active	Unplanned	Injection unavailability	2017-06-11T17:38:12+01:00	2017-05-19T13:52:00+01:00	2017-06-27T18:00:00+01:00	GWh/d	110	201	311	Planned Outage	Unplanned	21YGB-UKGASGRIDW	55WALDBOROUGH00H	SSE Hornsea Ltd	A0001033U.UK
Atwick	ATW_000000000000000000163_001	Active	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_000000000000000000161_001	Active	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_000000000000000000159_001	Active	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
Aldbrough	ALD_000000000000000000139_001	Active	Planned	Injection unavailability	2017-03-17T17:03:13+00:00	2017-10-29T05:00:00+00:00	2017-11-14T05:00:00+00:00	GWh/d	111	200	311	Planned Outage	Planned outage	21YGB-UKGASGRIDW	55WALDBOROUGH00H	SSE Hornsea Ltd	A0001033U.UK
Aldbrough	ALD_000000000000000000138_001	Active	Planned	Injection unavailability	2017-03-17T17:02:01+00:00	2017-10-23T05:00:00+01:00	2017-10-28T05:00:00+01:00	GWh/d	111	200	311	Planned Outage	Planned outage	21YGB-UKGASGRIDW	55WALDBOROUGH00H	SSE Hornsea Ltd	A0001033U.UK
Aldbrough	ALD_000000000000000000137_001	Active	Planned	Injection unavailability	2017-03-17T17:00:48+00:00	2017-10-16T05:00:00+01:00	2017-10-21T05:00:00+01:00	GWh/d	111	200	311	Planned Outage	Planned outage	21YGB-UKGASGRIDW	55WALDBOROUGH00H	SSE Hornsea Ltd	A0001033U.UK
Aldbrough	ALD_000000000000000000179_004	Dismissed	Unplanned	Withdrawal unavailability	2017-06-24T11:56:20+01:00	2017-06-23T11:12:00+01:00	2017-06-24T14:00:00+01:00	GWh/d	342	0	342	Failure		21YGB-UKGASGRIDW	55WALDBOROUGH00H	SSE Hornsea Ltd	A0001033U.UK
Aldbrough	ALD_000000000000000000179_003	Dismissed	Unplanned	Withdrawal unavailability	2017-06-23T15:42:47+01:00	2017-06-23T11:12:00+01:00	2017-06-24T16:00:00+01:00	GWh/d	342	0	342	Failure		21YGB-UKGASGRIDW	55WALDBOROUGH00H	SSE Hornsea Ltd	A0001033U.UK
Aldbrough	ALD_000000000000000000179_002	Dismissed	Unplanned	Withdrawal unavailability	2017-06-23T13:15:49+01:00	2017-06-23T11:12:00+01:00	2017-06-23T16:00:00+01:00	GWh/d	342	0	342	Failure		21YGB-UKGASGRIDW	55WALDBOROUGH00H	SSE Hornsea Ltd	A0001033U.UK
Aldbrough	ALD_000000000000000000179_001	Dismissed	Unplanned	Withdrawal unavailability	2017-06-23T11:24:50+01:00	2017-06-23T11:12:00+01:00	2017-06-23T13:30:00+01:00	GWh/d	342	0	342	Failure		21YGB-UKGASGRIDW	55WALDBOROUGH00H	SSE Hornsea Ltd	A0001033U.UK
Aldbrough	ALD_000000000000000000180_004	Dismissed	Unplanned	Injection unavailability	2017-06-24T11:56:52+01:00	2017-06-23T11:12:00+01:00	2017-06-24T14:00:00+01:00	GWh/d	201	0	311	Failure	Full site outage	21YGB-UKGASGRIDW	55WALDBOROUGH00H	SSE Hornsea Ltd	A0001033U.UK
Aldbrough	ALD_000000000000000000180_003	Dismissed	Unplanned	Injection unavailability	2017-06-23T15:42:21+01:00	2017-06-23T11:12:00+01:00	2017-06-24T16:00:00+01:00	GWh/d	201	0	311	Failure	Full site outage	21YGB-UKGASGRIDW	55WALDBOROUGH00H	SSE Hornsea Ltd	A0001033U.UK
Aldbrough	ALD_000000000000000000180_002	Dismissed	Unplanned	Injection unavailability	2017-06-23T13:15:33+01:00	2017-06-23T11:12:00+01:00	2017-06-23T16:00:00+01:00	GWh/d	201	0	311	Failure	Full site outage	21YGB-UKGASGRIDW	55WALDBOROUGH00H	SSE Hornsea Ltd	A0001033U.UK
Aldbrough	ALD_000000000000000000180_001	Dismissed	Unplanned	Injection unavailability	2017-06-23T11:28:02+01:00	2017-06-23T11:12:00+01:00	2017-06-23T13:30:00+01:00	GWh/d	201	0	311	Failure	Full site outage	21YGB-UKGASGRIDW	55WALDBOROUGH00H	SSE Hornsea Ltd	A0001033U.UK
Aldbrough	ALD_000000000000000000178_002	Dismissed	Unplanned	Withdrawal unavailability	2017-06-20T11:10:21+01:00	2017-06-20T10:50:00+01:00	2017-06-20T18:00:00+01:00	GWh/d	121.5	220.5	342	Failure		21YGB-UKGASGRIDW	55WALDBOROUGH00H	SSE Hornsea Ltd	A0001033U.UK
Aldbrough	ALD_000000000000000000178_001	Dismissed	Unplanned	Withdrawal unavailability	2017-06-20T11:01:56+01:00	2017-06-20T10:50:00+01:00	2017-06-20T18:00:00+01:00	GWh/d	121.5	220.5	342	Failure		21YGB-UKGASGRIDW	55WALDBOROUGH00H	SSE Hornsea Ltd	A0001033U.UK
Atwick	ATW_000000000000000000177_003	Dismissed	Unplanned	Withdrawal unavailability	2017-06-15T18:06:51+01:00	2017-08-28T15:00:00+01:00	2017-09-04T15:00:00+01:00	GWh/d	32.4	67.04	130	Planned Outage	Planned	21YGB-UKGASGRIDW	55WATWICK-SSE00J	SSE Hornsea Ltd	A0001033U.UK
Atwick	ATW_000000000000000000177_002	Dismissed	Unplanned	Withdrawal unavailability	2017-06-15T18:02:32+01:00	2017-08-28T15:00:00+01:00	2017-09-04T15:00:00+01:00	GWh/d	67.2	32.56	130	Planned Outage	Planned	21YGB-UKGASGRIDW	55WATWICK-SSE00J	SSE Hornsea Ltd	A0001033U.UK
Atwick	ATW_000000000000000000177_001	Dismissed	Unplanned	Withdrawal unavailability	2017-06-15T16:34:16+01:00	2017-08-28T15:00:00+01:00	2017-09-04T15:00:00+01:00	GWh/d	67.2	62.8	130	Planned Outage	Planned	21YGB-UKGASGRIDW	55WATWICK-SSE00J	SSE Hornsea Ltd	A0001033U.UK
Atwick	ATW_000000000000000000176_001	Dismissed	Planned	Withdrawal unavailability	2017-06-15T16:31:43+01:00	2017-07-01T08:00:00+01:00	2017-07-24T18:00:00+01:00	GWh/d	32.4	67.04	130	Planned Outage	Planned	21YGB-UKGASGRIDW	55WATWICK-SSE00J	SSE Hornsea Ltd	A0001033U.UK
Atwick	ATW_000000000000000000149_004	Dismissed	Planned	Withdrawal unavailability	2017-06-15T16:30:23+01:00	2017-07-25T08:00:00+01:00	2017-08-28T18:00:00+01:00	GWh/d	67.04	32.56	130	Planned Outage	Planned	21YGB-UKGASGRIDW	55WATWICK-SSE00J	SSE Hornsea Ltd	A0001033U.UK
Atwick	ATW_000000000000000000149_003	Dismissed	Planned	Withdrawal unavailability	2017-05-10T15:31:07+01:00	2017-09-02T08:00:00+01:00	2017-09-10T16:00:00+01:00	GWh/d	67.04	32.56	130	Planned Outage	Planned	21YGB-UKGASGRIDW	55WATWICK-SSE00J	SSE Hornsea Ltd	A0001033U.UK
Atwick	ATW_000000000000000000149_002	Dismissed	Planned	Withdrawal unavailability	2017-05-10T15:27:03+01:00	2017-09-02T08:00:00+01:00	2017-09-10T16:00:00+01:00	GWh/d	67.04	62.96	130	Planned Outage	Planned	21YGB-UKGASGRIDW	55WATWICK-SSE00J	SSE Hornsea Ltd	A0001033U.UK
Atwick	ATW_000000000000000000149_001	Dismissed	Planned	Withdrawal unavailability	2017-03-29T15:13:14+01:00	2017-09-02T08:00:00+01:00	2017-09-10T16:00:00+01:00	GWh/d	97.44	32.56	130	Planned Outage	Planned	21YGB-UKGASGRIDW	55WATWICK-SSE00J	SSE Hornsea Ltd	A0001033U.UK
Atwick	ATW_000000000000000000167_001	Dismissed	Planned	Withdrawal unavailability	2017-05-10T15:30:23+01:00	2017-07-29T08:00:00+01:00	2017-08-21T16:00:00+01:00	GWh/d	32.4	67.2	130	Planned Outage	Planned	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_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_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_000000000000000000118_006	Dismissed	Unplanned	Withdrawal unavailability	2017-04-28T16:35:43+01:00	2017-01-29T19:00:00+00:00	2017-10-02T05:00:00+01:00	GWh/d	30.4	99.6	130	Planned Outage	Unplanned	21YGB-UKGASGRIDW	55WATWICK-SSE00J	SSE Hornsea Ltd	A0001033U.UK
Atwick	ATW_000000000000000000118_005	Dismissed	Unplanned	Withdrawal unavailability	2017-01-31T14:35:14+00:00	2017-01-29T19:00:00+00:00	2017-05-02T18:00:00+01:00	GWh/d	30.4	99.6	130	Planned Outage	Unplanned	21YGB-UKGASGRIDW	55WATWICK-SSE00J	SSE Hornsea Ltd	A0001033U.UK
Atwick	ATW_000000000000000000118_004	Dismissed	Unplanned	Withdrawal unavailability	2017-01-30T09:49:57+00:00	2017-01-29T19:00:00+00:00	2017-02-03T16:00:00+00:00	GWh/d	35.2	94.8	130	Failure	Failure	21YGB-UKGASGRIDW	55WATWICK-SSE00J	SSE Hornsea Ltd	A0001033U.UK
Atwick	ATW_000000000000000000118_003	Dismissed	Unplanned	Withdrawal unavailability	2017-01-30T09:38:11+00:00	2017-01-29T19:00:00+00:00	2017-02-03T16:00:00+00:00	GWh/d	35.2	62.4	130	Failure	Failure	21YGB-UKGASGRIDW	55WATWICK-SSE00J	SSE Hornsea Ltd	A0001033U.UK
Atwick	ATW_000000000000000000118_002	Dismissed	Unplanned	Withdrawal unavailability	2017-01-30T00:31:43+00:00	2017-01-29T19:00:00+00:00	2017-01-30T12:00:00+00:00	GWh/d	25	105	130	Failure	Failure	21YGB-UKGASGRIDW	55WATWICK-SSE00J	SSE Hornsea Ltd	A0001033U.UK
Atwick	ATW_000000000000000000118_001	Dismissed	Unplanned	Withdrawal unavailability	2017-01-29T17:58:24+00:00	2017-01-29T19:00:00+00:00	2017-01-30T12:00:00+00:00	GWh/d	36.4	93.6	130	Failure	Failure	21YGB-UKGASGRIDW	55WATWICK-SSE00J	SSE Hornsea Ltd	A0001033U.UK
Aldbrough	ALD_000000000000000000175_003	Dismissed	Unplanned	Injection unavailability	2017-06-11T17:39:45+01:00	2017-06-11T11:00:00+01:00	2017-06-12T00:01:00+01:00	GWh/d	201	0	311	Planned Outage	Unplanned	21YGB-UKGASGRIDW	55WALDBOROUGH00H	SSE Hornsea Ltd	A0001033U.UK
Aldbrough	ALD_000000000000000000175_002	Dismissed	Unplanned	Injection unavailability	2017-06-11T09:26:07+01:00	2017-06-11T11:00:00+01:00	2017-06-13T18:00:00+01:00	GWh/d	201	0	311	Planned Outage	Unplanned	21YGB-UKGASGRIDW	55WALDBOROUGH00H	SSE Hornsea Ltd	A0001033U.UK
Aldbrough	ALD_000000000000000000175_001	Dismissed	Unplanned	Injection unavailability	2017-06-08T15:46:40+01:00	2017-06-11T10:00:00+01:00	2017-06-13T18:00:00+01:00	GWh/d	201	0	311	Planned Outage	Unplanned	21YGB-UKGASGRIDW	55WALDBOROUGH00H	SSE Hornsea Ltd	A0001033U.UK
Aldbrough	ALD_000000000000000000174_004	Dismissed	Unplanned	Withdrawal unavailability	2017-06-11T17:40:07+01:00	2017-06-11T11:00:00+01:00	2017-06-12T00:01:00+01:00	GWh/d	342	0	342	Planned Outage	Unplanned	21YGB-UKGASGRIDW	55WALDBOROUGH00H	SSE Hornsea Ltd	A0001033U.UK
Aldbrough	ALD_000000000000000000174_003	Dismissed	Unplanned	Withdrawal unavailability	2017-06-11T09:25:50+01:00	2017-06-11T11:00:00+01:00	2017-06-13T18:00:00+01:00	GWh/d	342	0	342	Planned Outage	Unplanned	21YGB-UKGASGRIDW	55WALDBOROUGH00H	SSE Hornsea Ltd	A0001033U.UK
Aldbrough	ALD_000000000000000000174_002	Dismissed	Unplanned	Withdrawal unavailability	2017-06-08T15:47:11+01:00	2017-06-11T10:00:00+01:00	2017-06-13T18:00:00+01:00	GWh/d	342	0	342	Planned Outage	Unplanned	21YGB-UKGASGRIDW	55WALDBOROUGH00H	SSE Hornsea Ltd	A0001033U.UK
Aldbrough	ALD_000000000000000000174_001	Dismissed	Unplanned	Withdrawal unavailability	2017-06-08T15:44:07+01:00	2017-06-11T10:00:00+01:00	2017-06-13T18:00:00+01:00	GWh/d	342	0	342	Planned Outage		21YGB-UKGASGRIDW	55WALDBOROUGH00H	SSE Hornsea Ltd	A0001033U.UK
Aldbrough	ALD_000000000000000000169_006	Dismissed	Unplanned	Injection unavailability	2017-06-08T15:49:54+01:00	2017-05-19T13:52:00+01:00	2017-06-13T18:00:00+01:00	GWh/d	110	201	311	Planned Outage	Unplanned	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.