Last update at: 2024-10-13T11:00:00+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
< 9 10 11 12 13 >
Aldbrough	ALD_000000000000000000941_002	Inactive	Planned	Storage unavailability	2024-06-26T15:02:32+01:00	2024-06-26T05:00:00+01:00	2024-06-26T14:00:00+01:00	TWh	0.412	2.7501642	3.1621642	Planned Outage	A3 block move.	21YGB-UKGASGRIDW	55WALDBOROUGH00H	SSE Hornsea Ltd	A0001033U.UK
Aldbrough	ALD_000000000000000000941_001	Dismissed	Planned	Storage unavailability	2024-06-21T10:47:25+01:00	2024-06-26T05:00:00+01:00	2024-06-26T14:00:00+01:00	TWh	0.412	2.7501642	3.1621642	Planned Outage	A3 block move.	21YGB-UKGASGRIDW	55WALDBOROUGH00H	SSE Hornsea Ltd	A0001033U.UK
Aldbrough	ALD_000000000000000000481_005	Inactive	Planned	Withdrawal unavailability	2024-06-21T16:28:27+01:00	2024-06-08T05:00:00+01:00	2024-06-21T16:20:00+01:00	GWh/d	121.5	220.8	342.3	Planned Outage	Prod Train 1 Outage.	21YGB-UKGASGRIDW	55WALDBOROUGH00H	SSE Hornsea Ltd	A0001033U.UK
Aldbrough	ALD_000000000000000000481_004	Dismissed	Planned	Withdrawal unavailability	2024-02-26T12:32:55+00:00	2024-06-08T05:00:00+01:00	2024-06-22T18:00:00+01:00	GWh/d	121.5	220.8	342.3	Planned Outage	Prod Train 1 Outage.	21YGB-UKGASGRIDW	55WALDBOROUGH00H	SSE Hornsea Ltd	A0001033U.UK
Aldbrough	ALD_000000000000000000481_003	Dismissed	Planned	Withdrawal unavailability	2023-11-01T08:59:38+00:00	2024-06-01T05:00:00+01:00	2024-06-18T18:00:00+01:00	GWh/d	121.5	220.8	342.3	Planned Outage	Prod Train 1 Outage.	21YGB-UKGASGRIDW	55WALDBOROUGH00H	SSE Hornsea Ltd	A0001033U.UK
Aldbrough	ALD_000000000000000000481_002	Dismissed	Planned	Withdrawal unavailability	2023-07-06T11:02:26+01:00	2024-05-10T05:00:00+01:00	2024-05-24T18:00:00+01:00	GWh/d	121.5	220.8	342.3	Planned Outage	Prod Train 1 Outage.	21YGB-UKGASGRIDW	55WALDBOROUGH00H	SSE Hornsea Ltd	A0001033U.UK
Aldbrough	ALD_000000000000000000481_001	Dismissed	Planned	Withdrawal unavailability	2020-07-11T16:32:14+01:00	2024-05-10T05:00:00+01:00	2024-05-24T18:00:00+01:00	GWh/d	121.5	220.8	342.3	Planned Outage	Prod Train 1 Outage	21YGB-UKGASGRIDW	55WALDBOROUGH00H	SSE Hornsea Ltd	A0001033U.UK
Aldbrough	ALD_000000000000000000932_002	Active	Planned	Storage unavailability	2024-06-19T12:08:32+01:00	2026-04-10T05:00:00+01:00	2027-04-10T05:00:00+01:00	TWh	0.412	2.7501642	3.1621642	Planned Outage	Ald 1 - AHP	21YGB-UKGASGRIDW	55WALDBOROUGH00H	SSE Hornsea Ltd	A0001033U.UK
Aldbrough	ALD_000000000000000000932_001	Dismissed	Planned	Storage unavailability	2024-06-13T09:58:53+01:00	2026-04-10T05:00:00+01:00	2027-05-10T05:00:00+01:00	TWh	0.412	2.7501642	3.1621642	Planned Outage	Ald 1 - AHP	21YGB-UKGASGRIDW	55WALDBOROUGH00H	SSE Hornsea Ltd	A0001033U.UK
Atwick	ATW_000000000000000000919_002	Dismissed	Planned	Withdrawal unavailability	2024-06-17T11:25:42+01:00	2024-06-18T08:00:00+01:00	2024-06-18T16:00:00+01:00	GWh/d	70	60	130	Planned Outage	.	21YGB-UKGASGRIDW	55WATWICK-SSE00J	SSE Hornsea Ltd	A0001033U.UK
Atwick	ATW_000000000000000000919_001	Dismissed	Planned	Withdrawal unavailability	2024-04-25T14:09:43+01:00	2024-06-18T08:00:00+01:00	2024-06-18T16:00:00+01:00	GWh/d	70	60	130	Planned Outage	.	21YGB-UKGASGRIDW	55WATWICK-SSE00J	SSE Hornsea Ltd	A0001033U.UK
Atwick	ATW_000000000000000000918_002	Inactive	Unplanned	Withdrawal unavailability	2024-06-17T11:24:37+01:00	2024-06-17T08:00:00+01:00	2024-06-17T11:20:00+01:00	GWh/d	70	60	130	Planned Outage	.	21YGB-UKGASGRIDW	55WATWICK-SSE00J	SSE Hornsea Ltd	A0001033U.UK
Atwick	ATW_000000000000000000918_001	Dismissed	Unplanned	Withdrawal unavailability	2024-04-25T14:08:36+01:00	2024-06-17T08:00:00+01:00	2024-06-17T16:00:00+01:00	GWh/d	70	60	130	Planned Outage	.	21YGB-UKGASGRIDW	55WATWICK-SSE00J	SSE Hornsea Ltd	A0001033U.UK
Atwick	ATW_000000000000000000917_002	Inactive	Planned	Withdrawal unavailability	2024-06-14T15:33:22+01:00	2024-06-14T08:00:00+01:00	2024-06-14T15:33:00+01:00	GWh/d	70	60	130	Planned Outage	.	21YGB-UKGASGRIDW	55WATWICK-SSE00J	SSE Hornsea Ltd	A0001033U.UK
Atwick	ATW_000000000000000000917_001	Dismissed	Planned	Withdrawal unavailability	2024-04-25T14:06:26+01:00	2024-06-14T08:00:00+01:00	2024-06-14T16:00:00+01:00	GWh/d	70	60	130	Planned Outage	.	21YGB-UKGASGRIDW	55WATWICK-SSE00J	SSE Hornsea Ltd	A0001033U.UK
Atwick	ATW_000000000000000000916_002	Inactive	Planned	Withdrawal unavailability	2024-06-13T16:04:06+01:00	2024-06-13T08:00:00+01:00	2024-06-13T16:00:00+01:00	GWh/d	70	60	130	Planned Outage	.	21YGB-UKGASGRIDW	55WATWICK-SSE00J	SSE Hornsea Ltd	A0001033U.UK
Atwick	ATW_000000000000000000916_001	Dismissed	Planned	Withdrawal unavailability	2024-04-25T14:03:30+01:00	2024-06-13T08:00:00+01:00	2024-06-13T16:00:00+01:00	GWh/d	70	60	130	Planned Outage	.	21YGB-UKGASGRIDW	55WATWICK-SSE00J	SSE Hornsea Ltd	A0001033U.UK
Aldbrough	ALD_000000000000000000843_002	Dismissed	Planned	Storage unavailability	2024-06-13T15:25:00+01:00	2024-10-01T05:00:00+01:00	2024-12-31T05:00:00+00:00	TWh	0.232	2.9301642	3.1621642	Planned Outage	Cavern 6. Removed from service AHS.	21YGB-UKGASGRIDW	55WALDBOROUGH00H	SSE Hornsea Ltd	A0001033U.UK
Aldbrough	ALD_000000000000000000843_001	Dismissed	Planned	Storage unavailability	2023-11-13T10:05:32+00:00	2024-10-01T05:00:00+01:00	2024-12-31T05:00:00+00:00	TWh	0.232	2.9301642	3.1621642	Planned Outage	Cavern 6. Removed from service AHS.	21YGB-UKGASGRIDW	55WALDBOROUGH00H	SSE Hornsea Ltd	A0001033U.UK
Atwick	ATW_000000000000000000915_002	Inactive	Planned	Withdrawal unavailability	2024-06-12T17:02:32+01:00	2024-06-12T08:00:00+01:00	2024-06-12T16:00:00+01:00	GWh/d	70	60	130	Planned Outage	.	21YGB-UKGASGRIDW	55WATWICK-SSE00J	SSE Hornsea Ltd	A0001033U.UK
Atwick	ATW_000000000000000000915_001	Dismissed	Planned	Withdrawal unavailability	2024-04-25T14:02:10+01:00	2024-06-12T08:00:00+01:00	2024-06-12T16:00:00+01:00	GWh/d	70	60	130	Planned Outage	.	21YGB-UKGASGRIDW	55WATWICK-SSE00J	SSE Hornsea Ltd	A0001033U.UK
Aldbrough	ALD_000000000000000000842_002	Dismissed	Planned	Storage unavailability	2024-06-12T15:58:36+01:00	2024-07-01T05:00:00+01:00	2024-12-31T05:00:00+00:00	TWh	0.412	2.7501642	3.1621642	Planned Outage	Cavern 1. Removed from service AHS.	21YGB-UKGASGRIDW	55WALDBOROUGH00H	SSE Hornsea Ltd	A0001033U.UK
Aldbrough	ALD_000000000000000000842_001	Dismissed	Planned	Storage unavailability	2023-11-13T10:03:43+00:00	2024-07-01T05:00:00+01:00	2024-12-31T05:00:00+00:00	TWh	0.412	2.7501642	3.1621642	Planned Outage	Cavern 1. Removed from service AHS.	21YGB-UKGASGRIDW	55WALDBOROUGH00H	SSE Hornsea Ltd	A0001033U.UK
Aldbrough	ALD_000000000000000000866_003	Dismissed	Planned	Storage unavailability	2024-06-12T15:37:41+01:00	2026-04-10T05:00:00+01:00	2027-04-10T05:00:00+01:00	TWh	0.412	2.7501642	3.1621642	Planned Outage	Ald 1 - AHP.	21YGB-UKGASGRIDW	55WALDBOROUGH00H	SSE Hornsea Ltd	A0001033U.UK
Aldbrough	ALD_000000000000000000866_002	Dismissed	Planned	Storage unavailability	2024-05-22T13:23:47+01:00	2026-04-10T05:00:00+01:00	2027-04-10T05:00:00+01:00	TWh	0.412	2.7501642	3.1621642	Planned Outage	Ald 1 - AHP.	21YGB-UKGASGRIDW	55WALDBOROUGH00H	SSE Hornsea Ltd	A0001033U.UK
Aldbrough	ALD_000000000000000000866_001	Dismissed	Planned	Storage unavailability	2023-12-12T15:46:18+00:00	2025-01-01T05:00:00+00:00	2026-01-01T05:00:00+00:00	TWh	0.412	2.7501642	3.1621642	Planned Outage	Ald 1 - AHP.	21YGB-UKGASGRIDW	55WALDBOROUGH00H	SSE Hornsea Ltd	A0001033U.UK
Aldbrough	ALD_000000000000000000909_004	Inactive	Planned	Injection unavailability	2024-06-11T16:28:11+01:00	2024-06-11T12:00:00+01:00	2024-06-11T16:15:00+01:00	GWh/d	311.56	0	311.56	Planned Outage	A4z software download	21YGB-UKGASGRIDW	55WALDBOROUGH00H	SSE Hornsea Ltd	A0001033U.UK
Aldbrough	ALD_000000000000000000909_003	Dismissed	Planned	Injection unavailability	2024-06-11T16:13:50+01:00	2024-06-11T12:00:00+01:00	2024-06-11T16:15:00+01:00	GWh/d	311.56	0	311.56	Planned Outage	A4z software download	21YGB-UKGASGRIDW	55WALDBOROUGH00H	SSE Hornsea Ltd	A0001033U.UK
Aldbrough	ALD_000000000000000000909_002	Dismissed	Planned	Injection unavailability	2024-05-13T13:54:49+01:00	2024-06-11T12:00:00+01:00	2024-06-11T18:00:00+01:00	GWh/d	311.56	0	311.56	Planned Outage	A4z software download	21YGB-UKGASGRIDW	55WALDBOROUGH00H	SSE Hornsea Ltd	A0001033U.UK
Aldbrough	ALD_000000000000000000909_001	Dismissed	Planned	Injection unavailability	2024-04-17T14:43:14+01:00	2024-06-05T10:00:00+01:00	2024-06-05T14:00:00+01:00	GWh/d	311.56	0	311.56	Planned Outage	A4z software download	21YGB-UKGASGRIDW	55WALDBOROUGH00H	SSE Hornsea Ltd	A0001033U.UK
Aldbrough	ALD_000000000000000000910_003	Inactive	Planned	Withdrawal unavailability	2024-06-11T16:18:24+01:00	2024-06-11T12:00:00+01:00	2024-06-11T16:15:00+01:00	GWh/d	342.3	0	342.3	Planned Outage	A4z software download	21YGB-UKGASGRIDW	55WALDBOROUGH00H	SSE Hornsea Ltd	A0001033U.UK
Aldbrough	ALD_000000000000000000910_002	Dismissed	Planned	Withdrawal unavailability	2024-05-13T13:54:01+01:00	2024-06-11T12:00:00+01:00	2024-06-11T18:00:00+01:00	GWh/d	342.3	0	342.3	Planned Outage	A4z software download	21YGB-UKGASGRIDW	55WALDBOROUGH00H	SSE Hornsea Ltd	A0001033U.UK
Aldbrough	ALD_000000000000000000910_001	Dismissed	Planned	Withdrawal unavailability	2024-04-17T14:45:15+01:00	2024-06-05T10:00:00+01:00	2024-06-05T14:00:00+01:00	GWh/d	342.3	0	342.3	Planned Outage	A4z software download	21YGB-UKGASGRIDW	55WALDBOROUGH00H	SSE Hornsea Ltd	A0001033U.UK
Aldbrough	ALD_000000000000000000794_010	Inactive	Unplanned	Storage unavailability	2024-06-10T19:02:32+01:00	2024-03-30T05:00:00+00:00	2024-06-10T18:00:00+01:00	TWh	0.4123	2.7498642	3.1621642	Planned Outage	Loss of Ald 3	21YGB-UKGASGRIDW	55WALDBOROUGH00H	SSE Hornsea Ltd	A0001033U.UK
Aldbrough	ALD_000000000000000000794_009	Dismissed	Unplanned	Storage unavailability	2024-06-06T15:13:49+01:00	2024-03-30T05:00:00+00:00	2024-06-10T18:00:00+01:00	TWh	0.4123	2.7498642	3.1621642	Planned Outage	Loss of Ald 3	21YGB-UKGASGRIDW	55WALDBOROUGH00H	SSE Hornsea Ltd	A0001033U.UK
Aldbrough	ALD_000000000000000000794_008	Dismissed	Unplanned	Storage unavailability	2024-05-31T11:42:31+01:00	2024-03-30T05:00:00+00:00	2024-06-07T18:00:00+01:00	TWh	0.4123	2.7498642	3.1621642	Planned Outage	Loss of Ald 3	21YGB-UKGASGRIDW	55WALDBOROUGH00H	SSE Hornsea Ltd	A0001033U.UK
Aldbrough	ALD_000000000000000000794_007	Dismissed	Unplanned	Storage unavailability	2024-05-14T13:01:17+01:00	2024-03-30T05:00:00+00:00	2024-05-31T18:00:00+01:00	TWh	0.4123	2.7498642	3.1621642	Planned Outage	Loss of Ald 3	21YGB-UKGASGRIDW	55WALDBOROUGH00H	SSE Hornsea Ltd	A0001033U.UK
Aldbrough	ALD_000000000000000000794_006	Dismissed	Unplanned	Storage unavailability	2024-04-25T15:49:39+01:00	2024-03-30T05:00:00+00:00	2024-06-08T18:00:00+01:00	TWh	0.4123	2.7498642	3.1621642	Planned Outage	Loss of Ald 3	21YGB-UKGASGRIDW	55WALDBOROUGH00H	SSE Hornsea Ltd	A0001033U.UK
Aldbrough	ALD_000000000000000000794_005	Dismissed	Unplanned	Storage unavailability	2024-04-17T13:15:54+01:00	2024-03-30T05:00:00+00:00	2024-06-06T18:00:00+01:00	TWh	0.4123	2.7498642	3.1621642	Planned Outage	Loss of Ald 3	21YGB-UKGASGRIDW	55WALDBOROUGH00H	SSE Hornsea Ltd	A0001033U.UK
Aldbrough	ALD_000000000000000000794_004	Dismissed	Unplanned	Storage unavailability	2024-03-08T09:56:28+00:00	2024-03-30T05:00:00+00:00	2024-05-07T18:00:00+01:00	TWh	0.4123	2.7498642	3.1621642	Planned Outage	Loss of Ald 3	21YGB-UKGASGRIDW	55WALDBOROUGH00H	SSE Hornsea Ltd	A0001033U.UK
Aldbrough	ALD_000000000000000000794_003	Dismissed	Unplanned	Storage unavailability	2024-03-04T08:15:02+00:00	2024-03-25T05:00:00+00:00	2024-05-09T18:00:00+01:00	TWh	0.4123	2.7498642	3.1621642	Planned Outage	Loss of Ald 3	21YGB-UKGASGRIDW	55WALDBOROUGH00H	SSE Hornsea Ltd	A0001033U.UK
Aldbrough	ALD_000000000000000000794_002	Dismissed	Unplanned	Storage unavailability	2024-02-01T12:41:10+00:00	2024-03-30T05:00:00+00:00	2024-05-07T18:00:00+01:00	TWh	0.4123	2.7498642	3.1621642	Planned Outage	Loss of Ald 3	21YGB-UKGASGRIDW	55WALDBOROUGH00H	SSE Hornsea Ltd	A0001033U.UK
Aldbrough	ALD_000000000000000000794_001	Dismissed	Unplanned	Storage unavailability	2023-08-21T14:43:47+01:00	2024-05-02T05:00:00+01:00	2024-06-11T18:00:00+01:00	TWh	0.4123	2.7498642	3.1621642	Planned Outage	Loss of Ald 3	21YGB-UKGASGRIDW	55WALDBOROUGH00H	SSE Hornsea Ltd	A0001033U.UK
Atwick	ATW_000000000000000000823_002	Inactive	Planned	Withdrawal unavailability	2024-06-08T12:30:10+01:00	2024-06-01T05:00:00+01:00	2024-06-08T12:00:00+01:00	GWh/d	48.33	81.67	130	Planned Outage	Stream 7 - outage	21YGB-UKGASGRIDW	55WATWICK-SSE00J	SSE Hornsea Ltd	A0001033U.UK
Atwick	ATW_000000000000000000823_001	Dismissed	Planned	Withdrawal unavailability	2023-10-20T19:45:15+01:00	2024-06-01T05:00:00+01:00	2024-06-11T18:00:00+01:00	GWh/d	48.33	81.67	130	Planned Outage	Stream 7 - outage	21YGB-UKGASGRIDW	55WATWICK-SSE00J	SSE Hornsea Ltd	A0001033U.UK
Aldbrough	ALD_000000000000000000482_007	Inactive	Planned	Withdrawal unavailability	2024-06-01T06:57:50+01:00	2024-05-05T05:00:00+01:00	2024-06-01T06:00:00+01:00	GWh/d	121.5	220.8	342.3	Planned Outage	Prod Train 2 Outage. Refactory additional conditioning time	21YGB-UKGASGRIDW	55WALDBOROUGH00H	SSE Hornsea Ltd	A0001033U.UK
Aldbrough	ALD_000000000000000000482_006	Dismissed	Planned	Withdrawal unavailability	2024-05-31T16:02:14+01:00	2024-05-05T05:00:00+01:00	2024-06-01T06:00:00+01:00	GWh/d	121.5	220.8	342.3	Planned Outage	Prod Train 2 Outage. Refactory additional conditioning time	21YGB-UKGASGRIDW	55WALDBOROUGH00H	SSE Hornsea Ltd	A0001033U.UK
Aldbrough	ALD_000000000000000000482_005	Dismissed	Planned	Withdrawal unavailability	2024-03-08T09:57:56+00:00	2024-05-05T05:00:00+01:00	2024-05-31T18:00:00+01:00	GWh/d	121.5	220.8	342.3	Planned Outage	Prod Train 2 Outage.	21YGB-UKGASGRIDW	55WALDBOROUGH00H	SSE Hornsea Ltd	A0001033U.UK
Aldbrough	ALD_000000000000000000482_004	Dismissed	Planned	Withdrawal unavailability	2024-02-26T12:31:55+00:00	2024-05-05T05:00:00+01:00	2024-05-30T18:00:00+01:00	GWh/d	121.5	220.8	342.3	Planned Outage	Prod Train 2 Outage.	21YGB-UKGASGRIDW	55WALDBOROUGH00H	SSE Hornsea Ltd	A0001033U.UK
Aldbrough	ALD_000000000000000000482_003	Dismissed	Planned	Withdrawal unavailability	2023-11-01T08:58:13+00:00	2024-05-05T05:00:00+01:00	2024-05-27T18:00:00+01:00	GWh/d	121.5	220.8	342.3	Planned Outage	Prod Train 2 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.