Last update at: 2020-03-16T08:30:00+00:00

**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_000000000000000000437_001	Active	Planned	Withdrawal unavailability	2020-02-17T13:09:34+00:00	2020-06-25T18:00:00+01:00	2020-07-12T18:00:00+01:00	GWh/d	97.44	32.56	130	Planned Outage	Planned outage	21YGB-UKGASGRIDW	55WATWICK-SSE00J	SSE Hornsea Ltd	A0001033U.UK
Atwick	ATW_000000000000000000436_001	Active	Planned	Withdrawal unavailability	2020-02-17T13:05:54+00:00	2020-06-12T05:00:00+01:00	2020-06-25T18:00:00+01:00	GWh/d	130	0	130	Planned Outage	Planned outage	21YGB-UKGASGRIDW	55WATWICK-SSE00J	SSE Hornsea Ltd	A0001033U.UK
Atwick	ATW_000000000000000000435_001	Active	Planned	Injection unavailability	2020-02-17T13:03:09+00:00	2020-06-12T05:00:00+01:00	2020-06-25T18:00:00+01:00	GWh/d	30	0	30	Planned Outage	Planned outage	21YGB-UKGASGRIDW	55WATWICK-SSE00J	SSE Hornsea Ltd	A0001033U.UK
Atwick	ATW_000000000000000000319_008	Active	Unplanned	Withdrawal unavailability	2020-02-17T12:58:51+00:00	2019-01-31T12:11:00+00:00	2020-06-12T05:00:00+01:00	GWh/d	30	100	130	Failure	this capacity will be available for limited durations but may not always be responsive to price signals	21YGB-UKGASGRIDW	55WATWICK-SSE00J	SSE Hornsea Ltd	A0001033U.UK
Aldbrough	ALD_000000000000000000434_001	Active	Planned	Injection unavailability	2020-01-29T09:58:43+00:00	2020-11-09T06:00:00+00:00	2020-11-09T18:00:00+00:00	GWh/d	111.02	200.54	311.56	Planned Outage		21YGB-UKGASGRIDW	55WALDBOROUGH00H	SSE Hornsea Ltd	A0001033U.UK
Aldbrough	ALD_000000000000000000433_001	Active	Planned	Injection unavailability	2020-01-29T09:56:38+00:00	2020-10-26T05:00:00+00:00	2020-11-08T18:00:00+00:00	GWh/d	111.02	200.54	311.56	Planned Outage		21YGB-UKGASGRIDW	55WALDBOROUGH00H	SSE Hornsea Ltd	A0001033U.UK
Aldbrough	ALD_000000000000000000432_001	Active	Planned	Injection unavailability	2020-01-29T09:54:58+00:00	2020-10-12T05:00:00+01:00	2020-10-25T18:00:00+00:00	GWh/d	111.02	200.54	311.56	Planned Outage		21YGB-UKGASGRIDW	55WALDBOROUGH00H	SSE Hornsea Ltd	A0001033U.UK
Aldbrough	ALD_000000000000000000431_001	Active	Planned	Injection unavailability	2020-01-29T09:51:27+00:00	2020-11-10T05:00:00+00:00	2020-11-17T18:00:00+00:00	GWh/d	111.02	200.54	311.56	Planned Outage		21YGB-UKGASGRIDW	55WALDBOROUGH00H	SSE Hornsea Ltd	A0001033U.UK
Aldbrough	ALD_000000000000000000430_001	Active	Planned	Withdrawal unavailability	2020-01-29T09:48:28+00:00	2020-05-26T05:00:00+01:00	2020-06-09T18:00:00+01:00	GWh/d	121.5	220.8	342.3	Planned Outage		21YGB-UKGASGRIDW	55WALDBOROUGH00H	SSE Hornsea Ltd	A0001033U.UK
Aldbrough	ALD_000000000000000000429_001	Active	Planned	Withdrawal unavailability	2020-01-29T09:46:22+00:00	2020-05-03T05:00:00+01:00	2020-05-11T05:00:00+01:00	GWh/d	121.5	220.8	342.3	Planned Outage		21YGB-UKGASGRIDW	55WALDBOROUGH00H	SSE Hornsea Ltd	A0001033U.UK
Aldbrough	ALD_000000000000000000428_001	Active	Planned	Withdrawal unavailability	2020-01-29T09:42:51+00:00	2020-05-11T05:00:00+01:00	2020-05-18T18:00:00+01:00	GWh/d	342.3	0	342.3	Planned Outage		21YGB-UKGASGRIDW	55WALDBOROUGH00H	SSE Hornsea Ltd	A0001033U.UK
Aldbrough	ALD_000000000000000000427_001	Active	Planned	Injection unavailability	2020-01-29T09:40:54+00:00	2020-05-11T05:00:00+01:00	2020-05-18T18:00:00+01:00	GWh/d	311.56	0	311.56	Planned Outage		21YGB-UKGASGRIDW	55WALDBOROUGH00H	SSE Hornsea Ltd	A0001033U.UK
Aldbrough	ALD_000000000000000000439_002	Dismissed	Unplanned	Injection unavailability	2020-03-16T08:06:03+00:00	2020-03-15T18:30:00+00:00	2020-03-16T08:00:00+00:00	GWh/d	111.02	200.54	311.56	Failure		21YGB-UKGASGRIDW	55WALDBOROUGH00H	SSE Hornsea Ltd	A0001033U.UK
Aldbrough	ALD_000000000000000000439_001	Dismissed	Unplanned	Injection unavailability	2020-03-15T18:31:05+00:00	2020-03-15T18:30:00+00:00	2020-03-16T18:30:00+00:00	GWh/d	111.02	200.54	311.56	Failure		21YGB-UKGASGRIDW	55WALDBOROUGH00H	SSE Hornsea Ltd	A0001033U.UK
Aldbrough	ALD_000000000000000000438_001	Dismissed	Unplanned	Injection unavailability	2020-03-15T11:37:13+00:00	2020-03-15T11:45:00+00:00	2020-03-15T17:45:00+00:00	GWh/d	111.02	200.54	311.56	Failure		21YGB-UKGASGRIDW	55WALDBOROUGH00H	SSE Hornsea Ltd	A0001033U.UK
Atwick	ATW_000000000000000000319_007	Dismissed	Unplanned	Withdrawal unavailability	2019-11-12T16:33:42+00:00	2019-01-31T12:11:00+00:00	2020-06-30T18:00:00+01:00	GWh/d	30	100	130	Failure	this capacity will be available for limited durations but may not always be responsive to price signals	21YGB-UKGASGRIDW	55WATWICK-SSE00J	SSE Hornsea Ltd	A0001033U.UK
Atwick	ATW_000000000000000000319_006	Dismissed	Unplanned	Withdrawal unavailability	2019-10-02T15:18:39+01:00	2019-01-31T12:11:00+00:00	2020-06-30T18:00:00+01:00	GWh/d	30	100	130	Failure		21YGB-UKGASGRIDW	55WATWICK-SSE00J	SSE Hornsea Ltd	A0001033U.UK
Atwick	ATW_000000000000000000319_005	Dismissed	Unplanned	Withdrawal unavailability	2019-08-20T08:56:04+01:00	2019-01-31T12:11:00+00:00	2019-11-30T18:00:00+00:00	GWh/d	30	100	130	Failure		21YGB-UKGASGRIDW	55WATWICK-SSE00J	SSE Hornsea Ltd	A0001033U.UK
Atwick	ATW_000000000000000000319_004	Dismissed	Unplanned	Withdrawal unavailability	2019-06-14T22:27:51+01:00	2019-01-31T12:11:00+00:00	2019-08-31T18:00:00+01:00	GWh/d	30	100	130	Failure		21YGB-UKGASGRIDW	55WATWICK-SSE00J	SSE Hornsea Ltd	A0001033U.UK
Atwick	ATW_000000000000000000319_003	Dismissed	Unplanned	Withdrawal unavailability	2019-03-28T13:55:39+00:00	2019-01-31T12:11:00+00:00	2019-07-31T18:00:00+01:00	GWh/d	30	100	130	Failure		21YGB-UKGASGRIDW	55WATWICK-SSE00J	SSE Hornsea Ltd	A0001033U.UK
Atwick	ATW_000000000000000000319_002	Dismissed	Unplanned	Withdrawal unavailability	2019-02-04T08:56:40+00:00	2019-01-31T12:11:00+00:00	2019-03-31T18:00:00+01:00	GWh/d	30	100	130	Failure		21YGB-UKGASGRIDW	55WATWICK-SSE00J	SSE Hornsea Ltd	A0001033U.UK
Atwick	ATW_000000000000000000319_001	Dismissed	Unplanned	Withdrawal unavailability	2019-01-31T12:14:13+00:00	2019-01-31T12:11:00+00:00	2019-02-04T16:00:00+00:00	GWh/d	30	100	130	Failure	unplanned	21YGB-UKGASGRIDW	55WATWICK-SSE00J	SSE Hornsea Ltd	A0001033U.UK
Aldbrough	ALD_000000000000000000425_003	Dismissed	Unplanned	Withdrawal unavailability	2020-01-24T17:57:49+00:00	2020-01-20T17:00:00+00:00	2020-01-24T18:00:00+00:00	GWh/d	121.5	220.8	342.3	Failure		21YGB-UKGASGRIDW	55WALDBOROUGH00H	SSE Hornsea Ltd	A0001033U.UK
Aldbrough	ALD_000000000000000000425_002	Dismissed	Unplanned	Withdrawal unavailability	2020-01-23T06:34:23+00:00	2020-01-20T17:00:00+00:00	2020-01-24T18:00:00+00:00	GWh/d	121.5	220.8	342.3	Failure		21YGB-UKGASGRIDW	55WALDBOROUGH00H	SSE Hornsea Ltd	A0001033U.UK
Aldbrough	ALD_000000000000000000425_001	Dismissed	Unplanned	Withdrawal unavailability	2020-01-17T08:29:00+00:00	2020-01-20T17:00:00+00:00	2020-01-23T18:00:00+00:00	GWh/d	121.5	220.8	342.3	Failure		21YGB-UKGASGRIDW	55WALDBOROUGH00H	SSE Hornsea Ltd	A0001033U.UK
Atwick	ATW_000000000000000000426_002	Dismissed	Unplanned	Storage unavailability	2020-01-21T15:46:16+00:00	2020-01-17T16:30:00+00:00	2020-01-21T16:00:00+00:00	TWh	0.28651	2.86005072	3.14656072	Failure	unplanned	21YGB-UKGASGRIDW	55WATWICK-SSE00J	SSE Hornsea Ltd	A0001033U.UK
Atwick	ATW_000000000000000000426_001	Dismissed	Unplanned	Storage unavailability	2020-01-17T17:12:19+00:00	2020-01-17T16:30:00+00:00	2020-01-21T16:00:00+00:00	TWh	0.28651	2.86005072	3.14656072	Failure	unplanned	21YGB-UKGASGRIDW	55WATWICK-SSE00J	SSE Hornsea Ltd	A0001033U.UK
Atwick	ATW_000000000000000000424_001	Dismissed	Planned	Storage unavailability	2020-01-13T11:40:43+00:00	2020-01-16T07:00:00+00:00	2020-01-16T17:00:00+00:00	TWh	0.28651208	2.86004864	3.14656072	Planned Outage		21YGB-UKGASGRIDW	55WATWICK-SSE00J	SSE Hornsea Ltd	A0001033U.UK
Aldbrough	ALD_000000000000000000422_002	Dismissed	Planned	Injection unavailability	2020-01-15T16:06:24+00:00	2020-01-13T17:00:00+00:00	2020-01-15T18:00:00+00:00	GWh/d	111.02	200.54	311.56	Planned Outage		21YGB-UKGASGRIDW	55WALDBOROUGH00H	SSE Hornsea Ltd	A0001033U.UK
Aldbrough	ALD_000000000000000000422_001	Dismissed	Planned	Injection unavailability	2020-01-10T09:13:41+00:00	2020-01-13T17:00:00+00:00	2020-01-15T18:00:00+00:00	GWh/d	111.02	200.54	311.56	Planned Outage		21YGB-UKGASGRIDW	55WALDBOROUGH00H	SSE Hornsea Ltd	A0001033U.UK
Atwick	ATW_000000000000000000423_002	Dismissed	Planned	Storage unavailability	2020-01-14T16:49:58+00:00	2020-01-14T07:00:00+00:00	2020-01-14T16:49:00+00:00	TWh	0.35363285	2.79292787	3.14656072	Planned Outage		21YGB-UKGASGRIDW	55WATWICK-SSE00J	SSE Hornsea Ltd	A0001033U.UK
Atwick	ATW_000000000000000000423_001	Dismissed	Planned	Storage unavailability	2020-01-13T11:36:04+00:00	2020-01-14T07:00:00+00:00	2020-01-14T17:00:00+00:00	TWh	0.35363285	2.79292787	3.14656072	Planned Outage		21YGB-UKGASGRIDW	55WATWICK-SSE00J	SSE Hornsea Ltd	A0001033U.UK
Aldbrough	ALD_000000000000000000421_001	Dismissed	Unplanned	Storage unavailability	2020-01-08T08:44:04+00:00	2020-01-09T05:00:00+00:00	2020-01-09T19:00:00+00:00	TWh	0.3445	1.80794821	2.15244821	Planned Outage		21YGB-UKGASGRIDW	55WALDBOROUGH00H	SSE Hornsea Ltd	A0001033U.UK
Atwick	ATW_000000000000000000417_001	Dismissed	Planned	Injection unavailability	2019-12-13T07:17:02+00:00	2020-01-07T13:00:00+00:00	2020-01-07T16:00:00+00:00	GWh/d	30	0	30	Planned Outage	Planned outage	21YGB-UKGASGRIDW	55WATWICK-SSE00J	SSE Hornsea Ltd	A0001033U.UK
Atwick	ATW_000000000000000000418_001	Dismissed	Planned	Withdrawal unavailability	2019-12-13T07:18:28+00:00	2020-01-07T13:00:00+00:00	2020-01-07T16:00:00+00:00	GWh/d	100	0	130	Planned Outage	Planned outage	21YGB-UKGASGRIDW	55WATWICK-SSE00J	SSE Hornsea Ltd	A0001033U.UK
Atwick	ATW_000000000000000000420_002	Dismissed	Unplanned	Withdrawal unavailability	2019-12-27T14:22:32+00:00	2019-12-26T12:00:00+00:00	2019-12-31T16:00:00+00:00	GWh/d	63	67	130	Failure		21YGB-UKGASGRIDW	55WATWICK-SSE00J	SSE Hornsea Ltd	A0001033U.UK
Atwick	ATW_000000000000000000420_001	Dismissed	Unplanned	Withdrawal unavailability	2019-12-26T12:13:41+00:00	2019-12-26T12:00:00+00:00	2019-12-27T16:00:00+00:00	GWh/d	63	67	130	Failure		21YGB-UKGASGRIDW	55WATWICK-SSE00J	SSE Hornsea Ltd	A0001033U.UK
Atwick	ATW_000000000000000000419_001	Dismissed	Planned	Withdrawal unavailability	2019-12-13T14:59:07+00:00	2019-12-17T08:00:00+00:00	2019-12-19T16:00:00+00:00	GWh/d	70	30	130	Planned Outage	Planned outage	21YGB-UKGASGRIDW	55WATWICK-SSE00J	SSE Hornsea Ltd	A0001033U.UK
Aldbrough	ALD_000000000000000000408_001	Dismissed	Planned	Injection unavailability	2019-11-14T09:47:23+00:00	2019-12-17T09:00:00+00:00	2019-12-17T17:00:00+00:00	GWh/d	311.56	0	311.56	Planned Outage		21YGB-UKGASGRIDW	55WALDBOROUGH00H	SSE Hornsea Ltd	A0001033U.UK
Atwick	ATW_000000000000000000415_003	Dismissed	Unplanned	Withdrawal unavailability	2019-12-12T15:55:50+00:00	2019-12-10T19:29:00+00:00	2019-12-12T15:55:00+00:00	GWh/d	32.56	97.44	130	Failure	unplanned	21YGB-UKGASGRIDW	55WATWICK-SSE00J	SSE Hornsea Ltd	A0001033U.UK
Atwick	ATW_000000000000000000415_002	Dismissed	Unplanned	Withdrawal unavailability	2019-12-11T15:45:27+00:00	2019-12-10T19:29:00+00:00	2019-12-12T16:00:00+00:00	GWh/d	32.56	97.44	130	Failure	unplanned	21YGB-UKGASGRIDW	55WATWICK-SSE00J	SSE Hornsea Ltd	A0001033U.UK
Atwick	ATW_000000000000000000415_001	Dismissed	Unplanned	Withdrawal unavailability	2019-12-10T19:33:20+00:00	2019-12-10T19:29:00+00:00	2019-12-11T16:00:00+00:00	GWh/d	32.56	97.44	130	Failure	unplanned	21YGB-UKGASGRIDW	55WATWICK-SSE00J	SSE Hornsea Ltd	A0001033U.UK
Atwick	ATW_000000000000000000416_002	Dismissed	Planned	Storage unavailability	2019-12-11T17:18:11+00:00	2019-12-11T09:27:00+00:00	2019-12-11T17:17:00+00:00	TWh	0.214602675	2.931958045	3.14656072	Planned Outage		21YGB-UKGASGRIDW	55WATWICK-SSE00J	SSE Hornsea Ltd	A0001033U.UK
Atwick	ATW_000000000000000000416_001	Dismissed	Planned	Storage unavailability	2019-12-11T09:28:33+00:00	2019-12-11T09:27:00+00:00	2019-12-11T19:00:00+00:00	TWh	0.214602675	2.931958045	3.14656072	Planned Outage		21YGB-UKGASGRIDW	55WATWICK-SSE00J	SSE Hornsea Ltd	A0001033U.UK
Atwick	ATW_000000000000000000414_001	Dismissed	Planned	Storage unavailability	2019-12-03T14:54:17+00:00	2019-12-09T12:00:00+00:00	2019-12-10T19:00:00+00:00	TWh	0.420819442	2.725741278	3.14656072	Planned Outage	Planned outage	21YGB-UKGASGRIDW	55WATWICK-SSE00J	SSE Hornsea Ltd	A0001033U.UK
Aldbrough	ALD_000000000000000000405_008	Dismissed	Planned	Injection unavailability	2019-12-05T17:20:45+00:00	2019-11-08T16:00:00+00:00	2019-12-06T18:00:00+00:00	GWh/d	111.02	200.54	311.56	Planned Outage		21YGB-UKGASGRIDW	55WALDBOROUGH00H	SSE Hornsea Ltd	A0001033U.UK
Aldbrough	ALD_000000000000000000405_007	Dismissed	Planned	Injection unavailability	2019-11-28T16:40:35+00:00	2019-11-08T16:00:00+00:00	2019-12-05T18:00:00+00:00	GWh/d	111.02	200.54	311.56	Planned Outage		21YGB-UKGASGRIDW	55WALDBOROUGH00H	SSE Hornsea Ltd	A0001033U.UK
Aldbrough	ALD_000000000000000000405_006	Dismissed	Planned	Injection unavailability	2019-11-24T21:58:03+00:00	2019-11-08T16:00:00+00:00	2019-11-29T18:00:00+00:00	GWh/d	111.02	200.54	311.56	Planned Outage		21YGB-UKGASGRIDW	55WALDBOROUGH00H	SSE Hornsea Ltd	A0001033U.UK
Aldbrough	ALD_000000000000000000405_005	Dismissed	Planned	Injection unavailability	2019-11-21T08:58:48+00:00	2019-11-08T16:00:00+00:00	2019-11-26T12:00:00+00:00	GWh/d	111.02	200.54	311.56	Planned Outage		21YGB-UKGASGRIDW	55WALDBOROUGH00H	SSE Hornsea Ltd	A0001033U.UK
Aldbrough	ALD_000000000000000000405_004	Dismissed	Planned	Injection unavailability	2019-11-14T09:39:08+00:00	2019-11-08T16:00:00+00:00	2019-11-23T18:00:00+00:00	GWh/d	111.02	200.54	311.56	Planned Outage		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.