Last update at: 2020-06-25T12:00:00+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 >
Aldbrough	ALD_000000000000000000137_001	Dismissed	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_000000000000000000138_001	Dismissed	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_000000000000000000139_001	Dismissed	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
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_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_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_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_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_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_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_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_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_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_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_000000000000000000118_007	Dismissed	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
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_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_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_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_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_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_000000000000000000167_002	Inactive	Planned	Withdrawal unavailability	2017-06-15T16:39:34+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_000000000000000000149_005	Dismissed	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_000000000000000000176_002	Dismissed	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_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_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_004	Dismissed	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
Aldbrough	ALD_000000000000000000169_009	Dismissed	Unplanned	Injection unavailability	2017-06-28T08:52:35+01:00	2017-05-19T13:52:00+01:00	2017-07-07T18:00:00+01:00	GWh/d	110	201	311	Planned Outage	Unplanned	21YGB-UKGASGRIDW	55WALDBOROUGH00H	SSE Hornsea Ltd	A0001033U.UK
Aldbrough	ALD_000000000000000000181_001	Dismissed	Unplanned	Injection unavailability	2017-06-28T08:56:03+01:00	2017-07-04T10:00:00+01:00	2017-07-06T18:00:00+01:00	GWh/d	200.56	110.44	311	Planned Outage	Unplanned	21YGB-UKGASGRIDW	55WALDBOROUGH00H	SSE Hornsea Ltd	A0001033U.UK
Aldbrough	ALD_000000000000000000182_001	Dismissed	Unplanned	Withdrawal unavailability	2017-06-28T08:57:26+01:00	2017-07-04T10:00:00+01:00	2017-07-06T18:00:00+01:00	GWh/d	342	0	342	Planned Outage	Unplanned	21YGB-UKGASGRIDW	55WALDBOROUGH00H	SSE Hornsea Ltd	A0001033U.UK
Aldbrough	ALD_000000000000000000181_002	Dismissed	Unplanned	Injection unavailability	2017-06-28T18:28:48+01:00	2017-07-04T10:00:00+01:00	2017-07-06T18:00:00+01:00	GWh/d	200.56	0	311	Planned Outage	Full site outage	21YGB-UKGASGRIDW	55WALDBOROUGH00H	SSE Hornsea Ltd	A0001033U.UK
Atwick	ATW_000000000000000000183_001	Dismissed	Unplanned	Withdrawal unavailability	2017-06-30T09:45:02+01:00	2017-07-06T08:00:00+01:00	2017-07-06T18:00:00+01:00	GWh/d	99.6	0	130	Planned Outage	Unplanned	21YGB-UKGASGRIDW	55WATWICK-SSE00J	SSE Hornsea Ltd	A0001033U.UK
Atwick	ATW_000000000000000000184_001	Dismissed	Unplanned	Withdrawal unavailability	2017-06-30T09:46:28+01:00	2017-07-13T08:00:00+01:00	2017-07-13T18:00:00+01:00	GWh/d	99.6	0	130	Planned Outage	Unplanned	21YGB-UKGASGRIDW	55WATWICK-SSE00J	SSE Hornsea Ltd	A0001033U.UK
Atwick	ATW_000000000000000000183_002	Dismissed	Unplanned	Withdrawal unavailability	2017-07-01T00:42:01+01:00	2017-07-06T08:00:00+01:00	2017-07-06T18:00:00+01:00	GWh/d	67.04	0	130	Planned Outage	Unplanned	21YGB-UKGASGRIDW	55WATWICK-SSE00J	SSE Hornsea Ltd	A0001033U.UK
Atwick	ATW_000000000000000000184_002	Dismissed	Unplanned	Withdrawal unavailability	2017-07-01T00:42:17+01:00	2017-07-13T08:00:00+01:00	2017-07-13T18:00:00+01:00	GWh/d	67.04	0	130	Planned Outage	Unplanned	21YGB-UKGASGRIDW	55WATWICK-SSE00J	SSE Hornsea Ltd	A0001033U.UK
Aldbrough	ALD_000000000000000000181_003	Inactive	Unplanned	Injection unavailability	2017-07-06T09:54:54+01:00	2017-07-04T10:00:00+01:00	2017-07-06T09:45:00+01:00	GWh/d	200.56	0	311	Planned Outage	Full site outage	21YGB-UKGASGRIDW	55WALDBOROUGH00H	SSE Hornsea Ltd	A0001033U.UK
Aldbrough	ALD_000000000000000000182_002	Inactive	Unplanned	Withdrawal unavailability	2017-07-06T09:55:27+01:00	2017-07-04T10:00:00+01:00	2017-07-06T09:45:00+01:00	GWh/d	342	0	342	Planned Outage	Unplanned	21YGB-UKGASGRIDW	55WALDBOROUGH00H	SSE Hornsea Ltd	A0001033U.UK
Aldbrough	ALD_000000000000000000185_001	Dismissed	Unplanned	Injection unavailability	2017-07-06T11:04:00+01:00	2017-07-07T10:00:00+01:00	2017-07-07T13:00:00+01:00	GWh/d	200.56	0	311	Planned Outage	Unplanned	21YGB-UKGASGRIDW	55WALDBOROUGH00H	SSE Hornsea Ltd	A0001033U.UK
Aldbrough	ALD_000000000000000000186_001	Dismissed	Unplanned	Withdrawal unavailability	2017-07-06T11:05:15+01:00	2017-07-07T10:00:00+01:00	2017-07-07T13:00:00+01:00	GWh/d	342	0	342	Planned Outage	Unplanned	21YGB-UKGASGRIDW	55WALDBOROUGH00H	SSE Hornsea Ltd	A0001033U.UK
Aldbrough	ALD_000000000000000000169_010	Dismissed	Unplanned	Injection unavailability	2017-07-06T11:05:55+01:00	2017-05-19T13:52:00+01:00	2017-07-07T13:00:00+01:00	GWh/d	110	201	311	Planned Outage	Unplanned	21YGB-UKGASGRIDW	55WALDBOROUGH00H	SSE Hornsea Ltd	A0001033U.UK
Atwick	ATW_000000000000000000183_003	Inactive	Unplanned	Withdrawal unavailability	2017-07-06T16:05:49+01:00	2017-07-06T08:00:00+01:00	2017-07-06T16:00:00+01:00	GWh/d	67.04	0	130	Planned Outage	Unplanned	21YGB-UKGASGRIDW	55WATWICK-SSE00J	SSE Hornsea Ltd	A0001033U.UK
Aldbrough	ALD_000000000000000000169_011	Inactive	Unplanned	Injection unavailability	2017-07-07T12:47:52+01:00	2017-05-19T13:52:00+01:00	2017-07-07T12:45:00+01:00	GWh/d	110	201	311	Planned Outage	Unplanned	21YGB-UKGASGRIDW	55WALDBOROUGH00H	SSE Hornsea Ltd	A0001033U.UK
Aldbrough	ALD_000000000000000000185_002	Inactive	Unplanned	Injection unavailability	2017-07-07T12:58:58+01:00	2017-07-07T10:00:00+01:00	2017-07-07T12:45:00+01:00	GWh/d	200.56	0	311	Planned Outage	Unplanned	21YGB-UKGASGRIDW	55WALDBOROUGH00H	SSE Hornsea Ltd	A0001033U.UK
Aldbrough	ALD_000000000000000000186_002	Inactive	Unplanned	Withdrawal unavailability	2017-07-07T12:59:43+01:00	2017-07-07T10:00:00+01:00	2017-07-07T12:45:00+01:00	GWh/d	342	0	342	Planned Outage	Unplanned	21YGB-UKGASGRIDW	55WALDBOROUGH00H	SSE Hornsea Ltd	A0001033U.UK
Atwick	ATW_000000000000000000187_001	Dismissed	Unplanned	Withdrawal unavailability	2017-07-12T13:38:18+01:00	2017-07-14T08:00:00+01:00	2017-07-14T18:00:00+01:00	GWh/d	67.04	0	130	Planned Outage	Unplanned	21YGB-UKGASGRIDW	55WATWICK-SSE00J	SSE Hornsea Ltd	A0001033U.UK
Atwick	ATW_000000000000000000184_003	Inactive	Unplanned	Withdrawal unavailability	2017-07-13T17:47:03+01:00	2017-07-13T08:00:00+01:00	2017-07-13T17:43:00+01:00	GWh/d	67.04	0	130	Planned Outage	Unplanned	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
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_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_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

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.