Last update at: 2021-02-17T17:00:00+00:00

**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_000000000000000000528_002	Inactive	Unplanned	Withdrawal unavailability	2020-11-27T11:04:54+00:00	2020-11-27T09:38:00+00:00	2020-11-27T11:00:00+00:00	GWh/d	0	130	130	Failure	Unable to run export plant at max flows due too high grid pressure.	21YGB-UKGASGRIDW	55WATWICK-SSE00J	SSE Hornsea Ltd	A0001033U.UK
Atwick	ATW_000000000000000000512_001	Dismissed	Unplanned	Injection unavailability	2020-10-10T11:35:55+01:00	2020-10-10T11:30:00+01:00	2020-10-11T05:00:00+01:00	GWh/d	0	30	30	Failure	unplanned outage	21YGB-UKGASGRIDW	55WATWICK-SSE00J	SSE Hornsea Ltd	A0001033U.UK
Atwick	ATW_000000000000000000486_001	Dismissed	Planned	Injection unavailability	2020-07-11T21:30:42+01:00	2021-07-01T05:00:00+01:00	2021-07-15T05:00:00+01:00	GWh/d	0	30	30	Planned Outage		21YGB-UKGASGRIDW	55WATWICK-SSE00J	SSE Hornsea Ltd	A0001033U.UK
Aldbrough	ALD_000000000000000000477_001	Active	Planned	Injection unavailability	2020-07-11T16:17:27+01:00	2023-10-16T05:00:00+01:00	2023-10-21T05:00:00+01:00	GWh/d	0	311.56	311.56	Planned Outage	Comp 2 Outage	21YGB-UKGASGRIDW	55WALDBOROUGH00H	SSE Hornsea Ltd	A0001033U.UK
Atwick	ATW_000000000000000000364_001	Dismissed	Planned	Injection unavailability	2019-07-11T12:55:23+01:00	2019-07-23T10:00:00+01:00	2019-07-23T12:00:00+01:00	GWh/d	0	30	30	Planned Outage		21YGB-UKGASGRIDW	55WATWICK-SSE00J	SSE Hornsea Ltd	A0001033U.UK
Aldbrough	ALD_000000000000000000337_004	Inactive	Planned	Withdrawal unavailability	2019-06-13T16:10:07+01:00	2019-05-27T05:00:00+01:00	2019-06-13T16:10:00+01:00	GWh/d	0	342.3	342.3	Planned Outage		21YGB-UKGASGRIDW	55WALDBOROUGH00H	SSE Hornsea Ltd	A0001033U.UK
Aldbrough	ALD_000000000000000000328_003	Inactive	Unplanned	Injection unavailability	2019-03-02T04:14:33+00:00	2019-03-02T02:03:00+00:00	2019-03-02T04:15:00+00:00	GWh/d	0	311.56	311.56	Failure		21YGB-UKGASGRIDW	55WALDBOROUGH00H	SSE Hornsea Ltd	A0001033U.UK
Aldbrough	ALD_000000000000000000328_002	Dismissed	Unplanned	Injection unavailability	2019-03-02T03:18:14+00:00	2019-03-02T02:03:00+00:00	2019-03-02T04:15:00+00:00	GWh/d	0	0	311.56	Failure		21YGB-UKGASGRIDW	55WALDBOROUGH00H	SSE Hornsea Ltd	A0001033U.UK
Aldbrough	ALD_000000000000000000328_001	Dismissed	Unplanned	Injection unavailability	2019-03-02T02:42:04+00:00	2019-03-02T02:03:00+00:00	2019-03-02T03:30:00+00:00	GWh/d	0	0	311.56	Failure		21YGB-UKGASGRIDW	55WALDBOROUGH00H	SSE Hornsea Ltd	A0001033U.UK
Aldbrough	ALD_000000000000000000327_003	Inactive	Unplanned	Withdrawal unavailability	2019-03-02T04:13:53+00:00	2019-03-02T02:03:00+00:00	2019-03-02T04:15:00+00:00	GWh/d	0	342.3	342.3	Failure		21YGB-UKGASGRIDW	55WALDBOROUGH00H	SSE Hornsea Ltd	A0001033U.UK
Aldbrough	ALD_000000000000000000327_002	Dismissed	Unplanned	Withdrawal unavailability	2019-03-02T03:18:40+00:00	2019-03-02T02:03:00+00:00	2019-03-02T04:15:00+00:00	GWh/d	0	0	342.3	Failure		21YGB-UKGASGRIDW	55WALDBOROUGH00H	SSE Hornsea Ltd	A0001033U.UK
Aldbrough	ALD_000000000000000000327_001	Dismissed	Unplanned	Withdrawal unavailability	2019-03-02T02:40:14+00:00	2019-03-02T02:03:00+00:00	2019-03-02T03:30:00+00:00	GWh/d	0	0	342.3	Failure		21YGB-UKGASGRIDW	55WALDBOROUGH00H	SSE Hornsea Ltd	A0001033U.UK
Aldbrough	ALD_000000000000000000326_002	Inactive	Unplanned	Withdrawal unavailability	2019-02-24T12:43:31+00:00	2019-02-24T03:37:00+00:00	2019-02-24T12:40:00+00:00	GWh/d	0	342.3	342.3	Failure		21YGB-UKGASGRIDW	55WALDBOROUGH00H	SSE Hornsea Ltd	A0001033U.UK
Atwick	ATW_000000000000000000279_004	Inactive	Planned	Injection unavailability	2018-06-13T21:52:45+01:00	2018-06-08T17:24:00+01:00	2018-06-13T21:51:00+01:00	GWh/d	0	30	30	Planned Outage	Planned	21YGB-UKGASGRIDW	55WATWICK-SSE00J	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_000000000000000000383_002	Inactive	Planned	Storage unavailability	2019-09-23T13:37:57+01:00	2019-09-16T05:00:00+01:00	2019-09-23T13:35:00+01:00	TWh	0.0684	2.08404821	2.15244821	Planned Outage	Planned	21YGB-UKGASGRIDW	55WALDBOROUGH00H	SSE Hornsea Ltd	A0001033U.UK
Aldbrough	ALD_000000000000000000383_001	Dismissed	Planned	Storage unavailability	2019-09-15T09:40:47+01:00	2019-09-16T05:00:00+01:00	2019-09-25T18:00:00+01:00	TWh	0.0684	2.08404821	2.15244821	Planned Outage	Planned	21YGB-UKGASGRIDW	55WALDBOROUGH00H	SSE Hornsea Ltd	A0001033U.UK
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
Atwick	ATW_000000000000000000524_002	Dismissed	Planned	Storage unavailability	2020-12-07T16:50:46+00:00	2020-12-07T06:00:00+00:00	2020-12-07T16:30:00+00:00	TWh	0.214457605	2.925423795	3.1398814	Planned Outage	Cavity 2	21YGB-UKGASGRIDW	55WATWICK-SSE00J	SSE Hornsea Ltd	A0001033U.UK
Atwick	ATW_000000000000000000524_001	Dismissed	Planned	Storage unavailability	2020-11-23T11:11:51+00:00	2020-12-07T06:00:00+00:00	2020-12-07T18:00:00+00:00	TWh	0.214457605	2.925423795	3.1398814	Planned Outage	Cavity 2	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_000000000000000000377_004	Inactive	Planned	Storage unavailability	2019-08-23T14:50:33+01:00	2019-08-20T08:00:00+01:00	2019-08-23T14:50:00+01:00	TWh	0.214673269	2.528042511	3.1639995	Planned Outage		21YGB-UKGASGRIDW	55WATWICK-SSE00J	SSE Hornsea Ltd	A0001033U.UK
Atwick	ATW_000000000000000000377_003	Dismissed	Planned	Storage unavailability	2019-08-20T15:18:05+01:00	2019-08-20T08:00:00+01:00	2019-08-23T16:00:00+01:00	TWh	0.214673269	2.528042511	3.1639995	Planned Outage		21YGB-UKGASGRIDW	55WATWICK-SSE00J	SSE Hornsea Ltd	A0001033U.UK
Atwick	ATW_000000000000000000511_004	Dismissed	Unplanned	Storage unavailability	2020-10-14T12:51:35+01:00	2020-10-10T10:52:00+01:00	2020-10-14T12:52:00+01:00	TWh	0.28583	2.8540514	3.1398814	Failure		21YGB-UKGASGRIDW	55WATWICK-SSE00J	SSE Hornsea Ltd	A0001033U.UK
Atwick	ATW_000000000000000000511_003	Dismissed	Unplanned	Storage unavailability	2020-10-13T14:19:22+01:00	2020-10-10T10:52:00+01:00	2020-10-14T13:00:00+01:00	TWh	0.28583	2.8540514	3.1398814	Failure		21YGB-UKGASGRIDW	55WATWICK-SSE00J	SSE Hornsea Ltd	A0001033U.UK
Atwick	ATW_000000000000000000511_002	Dismissed	Unplanned	Storage unavailability	2020-10-11T16:27:33+01:00	2020-10-10T10:52:00+01:00	2020-10-13T18:00:00+01:00	TWh	0.28583	2.8540514	3.1398814	Failure		21YGB-UKGASGRIDW	55WATWICK-SSE00J	SSE Hornsea Ltd	A0001033U.UK
Atwick	ATW_000000000000000000511_001	Dismissed	Unplanned	Storage unavailability	2020-10-10T10:59:54+01:00	2020-10-10T10:52:00+01:00	2020-10-12T18:00:00+01:00	TWh	0.28583	2.8540514	3.1398814	Failure		21YGB-UKGASGRIDW	55WATWICK-SSE00J	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_002	Inactive	Planned	Storage unavailability	2020-01-16T16:46:36+00:00	2020-01-16T07:00:00+00:00	2020-01-16T16:46:00+00:00	TWh	0.28651208	2.86004864	3.14656072	Planned Outage		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
Atwick	ATW_000000000000000000315_002	Inactive	Planned	Storage unavailability	2019-01-22T15:58:24+00:00	2019-01-22T05:00:00+00:00	2019-01-22T15:58:00+00:00	TWh	0.340326212	2.290737788	2.631064	Planned Outage	planned.	21YGB-UKGASGRIDW	55WATWICK-SSE00J	SSE Hornsea Ltd	A0001033U.UK
Atwick	ATW_000000000000000000315_001	Dismissed	Planned	Storage unavailability	2019-01-21T16:46:42+00:00	2019-01-22T05:00:00+00:00	2019-01-22T17:00:00+00:00	TWh	0.340326212	2.290737788	2.631064	Planned Outage	planned.	21YGB-UKGASGRIDW	55WATWICK-SSE00J	SSE Hornsea Ltd	A0001033U.UK
Aldbrough	ALD_000000000000000000421_002	Inactive	Unplanned	Storage unavailability	2020-01-09T15:59:05+00:00	2020-01-09T05:00:00+00:00	2020-01-09T16:00:00+00:00	TWh	0.3445	1.80794821	2.15244821	Planned Outage		21YGB-UKGASGRIDW	55WALDBOROUGH00H	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
Aldbrough	ALD_000000000000000000303_002	Inactive	Unplanned	Storage unavailability	2018-11-19T12:32:16+00:00	2018-11-19T00:30:00+00:00	2018-11-19T12:30:00+00:00	TWh	0.34543	1.8197917	2.1652217	Failure	Cavern locked out due to high temperatures, caused by low flows, and successive turnarounds.	21YGB-UKGASGRIDW	55WALDBOROUGH00H	SSE Hornsea Ltd	A0001033U.UK
Aldbrough	ALD_000000000000000000303_001	Dismissed	Unplanned	Storage unavailability	2018-11-19T08:01:11+00:00	2018-11-19T00:30:00+00:00	2018-11-19T12:30:00+00:00	TWh	0.34543	1.8197917	2.1652217	Failure	Cavern locked out due to high temperatures, caused by low flows, and successive turnarounds.	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_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_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
Atwick	ATW_000000000000000000527_002	Dismissed	Planned	Storage unavailability	2020-12-08T11:12:09+00:00	2020-12-15T07:00:00+00:00	2020-12-16T18:00:00+00:00	TWh	0.35298597	2.78689543	3.1398814	Planned Outage	Cavity 3	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.