Last update at: 2018-06-14T14:00:00+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	Balancing Zone	Affected Asset or Unit EIC Code	Market Participant	Market Participant Code
1 2 3 4 5 >
Atwick	ATW_000000000000000000280_003	Inactive	Unplanned	Storage unavailability	2018-06-14T13:59:50+01:00	2018-06-10T08:58:00+01:00	2018-06-14T14:01:00+01:00	TWh	0.20537	2.4180128	2.6233828	Failure	21YGB-UKGASGRIDW	55WATWICK-SSE00J	SSE Hornsea Ltd	A0001033U.UK
Atwick	ATW_000000000000000000280_002	Dismissed	Unplanned	Storage unavailability	2018-06-13T17:13:22+01:00	2018-06-10T08:58:00+01:00	2018-06-14T18:00:00+01:00	TWh	0.20537	2.4180128	2.6233828	Failure	21YGB-UKGASGRIDW	55WATWICK-SSE00J	SSE Hornsea Ltd	A0001033U.UK
Atwick	ATW_000000000000000000280_001	Dismissed	Unplanned	Storage unavailability	2018-06-10T08:57:21+01:00	2018-06-10T08:58:00+01:00	2018-06-13T18:00:00+01:00	TWh	0.20537	2.4180128	2.6233828	Failure	21YGB-UKGASGRIDW	55WATWICK-SSE00J	SSE Hornsea Ltd	A0001033U.UK
Aldbrough	ALD_000000000000000000281_002	Inactive	Unplanned	Storage unavailability	2018-06-14T13:01:52+01:00	2018-06-14T00:21:00+01:00	2018-06-14T12:00:00+01:00	TWh	0.34698	1.8182417	2.1652217	Failure	21YGB-UKGASGRIDW	55WALDBOROUGH00H	SSE Hornsea Ltd	A0001033U.UK
Aldbrough	ALD_000000000000000000281_001	Dismissed	Unplanned	Storage unavailability	2018-06-14T00:24:08+01:00	2018-06-14T00:21:00+01:00	2018-06-14T12:00:00+01:00	TWh	0.34698	1.8182417	2.1652217	Failure	21YGB-UKGASGRIDW	55WALDBOROUGH00H	SSE Hornsea Ltd	A0001033U.UK
Aldbrough	ALD_000000000000000000276_001	Dismissed	Unplanned	Injection unavailability	2018-06-05T09:11:38+01:00	2018-06-05T09:30:00+01:00	2018-06-05T13:30:00+01:00	GWh/d	111	200.56	311.56	Failure	21YGB-UKGASGRIDW	55WALDBOROUGH00H	SSE Hornsea Ltd	A0001033U.UK
Aldbrough	ALD_000000000000000000273_002	Inactive	Unplanned	Storage unavailability	2018-05-24T19:41:31+01:00	2018-05-24T10:25:00+01:00	2018-05-24T19:00:00+01:00	TWh	0.347	1.8182217	2.1652217	Failure	21YGB-UKGASGRIDW	55WALDBOROUGH00H	SSE Hornsea Ltd	A0001033U.UK
Aldbrough	ALD_000000000000000000273_001	Dismissed	Unplanned	Storage unavailability	2018-05-24T10:27:39+01:00	2018-05-24T10:25:00+01:00	2018-05-24T19:00:00+01:00	TWh	0.347	1.8182217	2.1652217	Failure	21YGB-UKGASGRIDW	55WALDBOROUGH00H	SSE Hornsea Ltd	A0001033U.UK
Aldbrough	ALD_000000000000000000270_002	Inactive	Planned	Storage unavailability	2018-05-23T06:01:53+01:00	2018-05-09T00:01:00+01:00	2018-05-23T05:00:00+01:00	TWh	0.34543	1.8197917	2.1652217	Planned Outage	21YGB-UKGASGRIDW	55WALDBOROUGH00H	SSE Hornsea Ltd	A0001033U.UK
Aldbrough	ALD_000000000000000000270_001	Dismissed	Planned	Storage unavailability	2018-05-09T01:17:35+01:00	2018-05-09T00:01:00+01:00	2018-05-23T05:00:00+01:00	TWh	0.34543	1.8197917	2.1652217	Planned Outage	21YGB-UKGASGRIDW	55WALDBOROUGH00H	SSE Hornsea Ltd	A0001033U.UK
Aldbrough	ALD_000000000000000000271_002	Inactive	Planned	Storage unavailability	2018-05-17T20:01:52+01:00	2018-05-09T05:00:00+01:00	2018-05-17T19:00:00+01:00	TWh	0.34697	1.4728217	2.1652217	Planned Outage	21YGB-UKGASGRIDW	55WALDBOROUGH00H	SSE Hornsea Ltd	A0001033U.UK
Aldbrough	ALD_000000000000000000271_001	Dismissed	Planned	Storage unavailability	2018-05-09T01:37:00+01:00	2018-05-09T05:00:00+01:00	2018-05-17T19:00:00+01:00	TWh	0.34697	1.4728217	2.1652217	Planned Outage	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_000000000000000000269_002	Inactive	Unplanned	Withdrawal unavailability	2018-05-07T15:29:29+01:00	2018-05-07T14:00:00+01:00	2018-05-07T15:15:00+01:00	GWh/d	342.3	0	342.3	Failure	21YGB-UKGASGRIDW	55WALDBOROUGH00H	SSE Hornsea Ltd	A0001033U.UK
Aldbrough	ALD_000000000000000000269_001	Dismissed	Unplanned	Withdrawal unavailability	2018-05-07T14:40:34+01:00	2018-05-07T14:00:00+01:00	2018-05-07T20:00:00+01:00	GWh/d	342.3	0	342.3	Failure	21YGB-UKGASGRIDW	55WALDBOROUGH00H	SSE Hornsea Ltd	A0001033U.UK
Atwick	ATW_000000000000000000205_001	Dismissed	Unplanned	Storage unavailability	2017-10-24T09:07:17+01:00	2017-10-25T08:00:00+01:00	2017-10-27T18:00:00+01:00	TWh	0.287316672	1.91768973	2.6233828	Planned Outage	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
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
Aldbrough	ALD_000000000000000000179_005	Inactive	Unplanned	Withdrawal unavailability	2017-06-24T12:37:30+01:00	2017-06-23T11:12:00+01:00	2017-06-24T12:28:00+01:00	GWh/d	342	0	342	Failure	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_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
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_000000000000000000170_002	Inactive	Unplanned	Withdrawal unavailability	2017-05-30T21:56:13+01:00	2017-05-30T20:44:00+01:00	2017-05-30T21:51:00+01:00	GWh/d	220.8	0	342	Failure	21YGB-UKGASGRIDW	55WALDBOROUGH00H	SSE Hornsea Ltd	A0001033U.UK
Aldbrough	ALD_000000000000000000170_001	Dismissed	Unplanned	Withdrawal unavailability	2017-05-30T21:19:11+01:00	2017-05-30T20:44:00+01:00	2017-05-30T23:00:00+01:00	GWh/d	220.8	0	342	Failure	21YGB-UKGASGRIDW	55WALDBOROUGH00H	SSE Hornsea Ltd	A0001033U.UK
Aldbrough	ALD_000000000000000000171_002	Inactive	Unplanned	Injection unavailability	2017-05-30T21:55:40+01:00	2017-05-30T20:44:00+01:00	2017-05-30T21:51:00+01:00	GWh/d	200.54	0	311	Failure	21YGB-UKGASGRIDW	55WALDBOROUGH00H	SSE Hornsea Ltd	A0001033U.UK
Aldbrough	ALD_000000000000000000171_001	Dismissed	Unplanned	Injection unavailability	2017-05-30T21:21:05+01:00	2017-05-30T20:44:00+01:00	2017-05-30T23:00:00+01:00	GWh/d	200.54	0	311	Failure	21YGB-UKGASGRIDW	55WALDBOROUGH00H	SSE Hornsea Ltd	A0001033U.UK
Aldbrough	ALD_000000000000000000168_002	Inactive	Unplanned	Injection unavailability	2017-05-14T20:24:04+01:00	2017-05-15T05:00:00+01:00	2017-05-15T18:00:00+01:00	GWh/d	111	200	311	Planned Outage	21YGB-UKGASGRIDW	55WALDBOROUGH00H	SSE Hornsea Ltd	A0001033U.UK
Aldbrough	ALD_000000000000000000168_001	Dismissed	Unplanned	Injection unavailability	2017-05-12T09:04:53+01:00	2017-05-15T05:00:00+01:00	2017-05-15T18:00:00+01:00	GWh/d	111	200	311	Planned Outage	21YGB-UKGASGRIDW	55WALDBOROUGH00H	SSE Hornsea Ltd	A0001033U.UK
Aldbrough	ALD_000000000000000000164_002	Inactive	Unplanned	Injection unavailability	2017-05-04T09:58:08+01:00	2017-05-04T04:48:00+01:00	2017-05-04T09:47:00+01:00	GWh/d	111	200	311	Failure	21YGB-UKGASGRIDW	55WALDBOROUGH00H	SSE Hornsea Ltd	A0001033U.UK
Aldbrough	ALD_000000000000000000164_001	Dismissed	Unplanned	Injection unavailability	2017-05-04T04:49:56+01:00	2017-05-04T04:48:00+01:00	2017-05-04T10:00:00+01:00	GWh/d	111	200	311	Failure	21YGB-UKGASGRIDW	55WALDBOROUGH00H	SSE Hornsea Ltd	A0001033U.UK
Atwick	ATW_000000000000000000119_001	Dismissed	Unplanned	Withdrawal unavailability	2017-01-30T09:37:22+00:00	2017-01-30T08:51:00+00:00	2017-01-31T16:00:00+00:00	GWh/d	32.4	62.4	130	Planned Outage	21YGB-UKGASGRIDW	55WATWICK-SSE00J	SSE Hornsea Ltd	A0001033U.UK
Atwick	ATW_000000000000000000116_002	Dismissed	Unplanned	Storage unavailability	2017-01-27T07:19:53+00:00	2017-01-27T06:00:00+00:00	2017-01-30T18:00:00+00:00	TWh	0.288	2.363972284	2.651972284	Planned Outage	21YGB-UKGASGRIDW	55WATWICK-SSE00J	SSE Hornsea Ltd	A0001033U.UK
Atwick	ATW_000000000000000000116_001	Dismissed	Unplanned	Storage unavailability	2017-01-27T06:57:52+00:00	2017-01-27T06:00:00+00:00	2017-01-30T18:00:00+00:00	TWh	0.288	2.363972284	2.651972284	Planned Outage	21YGB-UKGASGRIDW	55WATWICK-SSE00J	SSE Hornsea Ltd	A0001033U.UK
Atwick	ATW_000000000000000000100_002	Inactive	Unplanned	Storage unavailability	2017-01-09T17:57:43+00:00	2017-01-09T09:00:00+00:00	2017-01-09T17:57:00+00:00	TWh	0.584426657	2.067545627	2.651972284	Failure	21YGB-UKGASGRIDW	55WATWICK-SSE00J	SSE Hornsea Ltd	A0001033U.UK
Atwick	ATW_000000000000000000100_001	Dismissed	Unplanned	Storage unavailability	2017-01-09T12:37:59+00:00	2017-01-09T09:00:00+00:00	2017-01-09T18:00:00+00:00	TWh	0.584426657	2.067545627	2.651972284	Failure	21YGB-UKGASGRIDW	55WATWICK-SSE00J	SSE Hornsea Ltd	A0001033U.UK
Aldbrough	ALD_000000000000000000065_001	Dismissed	Unplanned	Withdrawal unavailability	2016-09-30T08:36:46+01:00	2016-09-30T08:31:00+01:00	2016-09-30T12:00:00+01:00	GWh/d	342	0	342	Planned Outage	21YGB-UKGASGRIDW	55WALDBOROUGH00H	SSE Hornsea Ltd	A0001033U.UK
Aldbrough	ALD_000000000000000000066_001	Dismissed	Unplanned	Injection unavailability	2016-09-30T08:38:11+01:00	2016-09-30T08:31:00+01:00	2016-09-30T12:00:00+01:00	GWh/d	311	0	311	Planned Outage	21YGB-UKGASGRIDW	55WALDBOROUGH00H	SSE Hornsea Ltd	A0001033U.UK
Atwick	ATW_000000000000000000040_003	Inactive	Unplanned	Withdrawal unavailability	2016-08-19T14:57:36+01:00	2016-08-18T18:00:00+01:00	2016-08-19T14:49:00+01:00	GWh/d	130	0	130	Failure	21YGB-UKGASGRIDW	55WATWICK-SSE00J	SSE Hornsea Ltd	A0001033U.UK
Atwick	ATW_000000000000000000040_002	Dismissed	Unplanned	Withdrawal unavailability	2016-08-18T17:47:33+01:00	2016-08-18T18:00:00+01:00	2016-08-19T18:00:00+01:00	GWh/d	130	0	130	Failure	21YGB-UKGASGRIDW	55WATWICK-SSE00J	SSE Hornsea Ltd	A0001033U.UK
Atwick	ATW_000000000000000000040_001	Dismissed	Unplanned	Withdrawal unavailability	2016-08-18T17:47:15+01:00	2016-08-18T18:00:00+01:00	2016-08-19T18:00:00+01:00	GWh/d	0	130	130	Failure	21YGB-UKGASGRIDW	55WATWICK-SSE00J	SSE Hornsea Ltd	A0001033U.UK
Atwick	ATW_000000000000000000030_002	Inactive	Unplanned	Storage unavailability	2016-08-17T19:02:31+01:00	2016-08-15T22:40:00+01:00	2016-08-17T18:00:00+01:00	TWh	0.210833321	2.441138963	2.651972284	Planned Outage	21YGB-UKGASGRIDW	55WATWICK-SSE00J	SSE Hornsea Ltd	A0001033U.UK
Atwick	ATW_000000000000000000030_001	Dismissed	Unplanned	Storage unavailability	2016-08-15T23:31:31+01:00	2016-08-15T22:40:00+01:00	2016-08-17T18:00:00+01:00	TWh	0.210833321	2.441138963	2.651972284	Planned Outage	21YGB-UKGASGRIDW	55WATWICK-SSE00J	SSE Hornsea Ltd	A0001033U.UK
Atwick	ATW_000000000000000000024_002	Inactive	Unplanned	Storage unavailability	2016-08-14T12:49:11+01:00	2016-08-13T12:00:00+01:00	2016-08-15T12:00:00+01:00	TWh	0.29	2.36	2.651972284	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.