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Substation Loading

The net power flow through each GSP, BSP and primary substation. For each substation the data is presented against each relevant node in the network model to reflect the intact topology. Statistical data cleansing (identification and replacement of erroneous time-series values with imputed alternatives) is applied to the data to remove any erroneous outliers or populate any outage periods where necessary.

The polarity of loadings is based on conventional power flow (HV to LV). Demand connected at the bus is expressed as a positive value and generation connected at the bus is expressed as a negative value.

https://dso.nationalgrid.co.uk/curtailment-analysis-data-usage-guidance

Data Files

Name Format Last Changed Download
100 Landulph, Abham, Exeter Substation Load parquet
7 hours ago
102 Axminster Substation Load parquet
7 hours ago
103 Taunton, Bridgwater Substation Load parquet
7 hours ago
105 Melksham Substation Load parquet
7 hours ago
108 Alverdiscott, Indian Queens Substation Load parquet
7 hours ago
109 Iron Acton (Swe) Substation Load parquet
7 hours ago
110 Seabank, Sandford Substation Load parquet
7 hours ago
111 Cellarhead Substation Load parquet
7 hours ago
112 Swansea North Substation Load parquet
7 hours ago
113 Chesterfield Substation Load parquet
7 hours ago
114 Portham Substation Load parquet
7 hours ago
58 Berkswell Substation Load parquet
7 hours ago
59 Bicker Fen Substation Load parquet
7 hours ago
61 Bishops Wood Substation Load parquet
7 hours ago
62 Coventry Substation Load parquet
7 hours ago
63 Drakelow Substation Load parquet
7 hours ago
64 East Claydon (Em) Substation Load parquet
7 hours ago
66 Enderby Substation Load parquet
7 hours ago
68 Grendon Substation Load parquet
7 hours ago
69 Ratcliffe Substation Load parquet
7 hours ago
70 Staythorpe Substation Load parquet
7 hours ago
71 Walpole Substation Load parquet
7 hours ago
73 West Burton Substation Load parquet
7 hours ago
75 Willington Substation Load parquet
7 hours ago
77 Bushbury Substation Load parquet
7 hours ago
78 Bustleholm Substation Load parquet
7 hours ago
80 Feckenham Substation Load parquet
7 hours ago
81 Iron Acton (Wm) Substation Load parquet
7 hours ago
82 Ironbridge And Shrewsbury Substation Load parquet
7 hours ago
83 Kitwell Substation Load parquet
7 hours ago
84 Lea Marston (Wm) Substation Load parquet
7 hours ago
85 Nechells East Substation Load parquet
7 hours ago
86 Ocker Hill Substation Load parquet
7 hours ago
87 Oldbury Substation Load parquet
7 hours ago
88 Penn Substation Load parquet
7 hours ago
90 Rugeley Substation Load parquet
7 hours ago
91 Willenhall Substation Load parquet
7 hours ago
92 Aberthaw And Cardiff East Substation Load parquet
7 hours ago
93 Margam Substation Load parquet
7 hours ago
94 Pembroke Substation Load parquet
7 hours ago
95 Pyle Substation Load parquet
7 hours ago
96 Rassau Substation Load parquet
7 hours ago
98 Upper Boat Substation Load parquet
7 hours ago
99 Uskmouth Substation Load parquet
7 hours ago

Additional Info

Field Value
Uploaded Date November 26, 2025, 10:19 (UTC)
Creator National Grid Electricity Distribution
Created Date November 26, 2025, 00:00 (UTC)
Rights NGED Open Data Licence
Coverage All Regions
Contributor Digitalisation & Data
Identifier SLF
Publisher DSO
Relation PELTD BLF
Language EN
Data Classification Open
Update Frequency 12 Months
Expiration Date November 26, 2026, 00:00 (UTC)

Integrate this dataset using cURL

# Get a list of dataset's resources

curl -L -s https://connecteddata.nationalgrid.co.uk/dataset/substation-loading/datapackage.json | grep path

# Get resources

curl -L https://connecteddata.nationalgrid.co.uk/dataset/ef70c80f-1b03-4c58-b1af-b63197764642/resource/d42c1e2b-a14f-4ec2-9180-70eec7eaca12/download/100_landulph-abham-exeter_substation_load.zip
curl -L https://connecteddata.nationalgrid.co.uk/dataset/ef70c80f-1b03-4c58-b1af-b63197764642/resource/6bbf61d5-06d9-4e87-a28d-222ea3cba49b/download/102_axminster_substation_load.zip
curl -L https://connecteddata.nationalgrid.co.uk/dataset/ef70c80f-1b03-4c58-b1af-b63197764642/resource/cf1f79b9-464e-4ead-b05f-ad5b5f539f59/download/103_taunton-bridgwater_substation_load.zip
curl -L https://connecteddata.nationalgrid.co.uk/dataset/ef70c80f-1b03-4c58-b1af-b63197764642/resource/0ddf8cd0-5777-48fb-a15f-a0a20f23e12a/download/105_melksham_substation_load.zip
curl -L https://connecteddata.nationalgrid.co.uk/dataset/ef70c80f-1b03-4c58-b1af-b63197764642/resource/7697044a-1b28-4f21-80af-9c5b0bf8bcd9/download/108_alverdiscott-indian-queens_substation_load.zip
curl -L https://connecteddata.nationalgrid.co.uk/dataset/ef70c80f-1b03-4c58-b1af-b63197764642/resource/8a90b33a-3521-48b3-a24b-b321113d31aa/download/109_iron-acton-swe_substation_load.zip
curl -L https://connecteddata.nationalgrid.co.uk/dataset/ef70c80f-1b03-4c58-b1af-b63197764642/resource/09c9af1f-288c-4e79-9439-1c2f2e70f673/download/110_seabank-sandford_substation_load.zip
curl -L https://connecteddata.nationalgrid.co.uk/dataset/ef70c80f-1b03-4c58-b1af-b63197764642/resource/4a4c1bdb-ede9-4a30-ae6b-395d5bca547b/download/111_cellarhead_substation_load.zip
curl -L https://connecteddata.nationalgrid.co.uk/dataset/ef70c80f-1b03-4c58-b1af-b63197764642/resource/8971a103-5590-4c8b-8b6d-060739ce690c/download/112_swansea-north_substation_load.zip
curl -L https://connecteddata.nationalgrid.co.uk/dataset/ef70c80f-1b03-4c58-b1af-b63197764642/resource/0480eef6-f538-4e8c-8a15-54efadb36725/download/113_chesterfield_substation_load.zip
curl -L https://connecteddata.nationalgrid.co.uk/dataset/ef70c80f-1b03-4c58-b1af-b63197764642/resource/f6994a70-8ffa-4420-85bb-b72f38612aeb/download/114_portham_substation_load.zip
curl -L https://connecteddata.nationalgrid.co.uk/dataset/ef70c80f-1b03-4c58-b1af-b63197764642/resource/c8b281ed-ab0d-4094-8d7e-4d09ed032223/download/58_berkswell_substation_load.zip
curl -L https://connecteddata.nationalgrid.co.uk/dataset/ef70c80f-1b03-4c58-b1af-b63197764642/resource/6bad69bd-1db9-414b-b8a7-b7f619898ffa/download/59_bicker-fen_substation_load.zip
curl -L https://connecteddata.nationalgrid.co.uk/dataset/ef70c80f-1b03-4c58-b1af-b63197764642/resource/f773955e-f157-452e-acc2-d2b2d9f8167e/download/61_bishops-wood_substation_load.zip
curl -L https://connecteddata.nationalgrid.co.uk/dataset/ef70c80f-1b03-4c58-b1af-b63197764642/resource/68d5d3dd-1594-47fd-981b-2a4e9a082218/download/62_coventry_substation_load.zip
curl -L https://connecteddata.nationalgrid.co.uk/dataset/ef70c80f-1b03-4c58-b1af-b63197764642/resource/5ca4ba64-d160-411b-b958-119ed701b605/download/63_drakelow_substation_load.zip
curl -L https://connecteddata.nationalgrid.co.uk/dataset/ef70c80f-1b03-4c58-b1af-b63197764642/resource/759b6da3-f8f9-43cd-a58f-9fa12cfea47c/download/64_east-claydon-em_substation_load.zip
curl -L https://connecteddata.nationalgrid.co.uk/dataset/ef70c80f-1b03-4c58-b1af-b63197764642/resource/bff76025-8657-4de7-9e11-80262e013ae9/download/66_enderby_substation_load.zip
curl -L https://connecteddata.nationalgrid.co.uk/dataset/ef70c80f-1b03-4c58-b1af-b63197764642/resource/e824d023-71c8-439d-91a7-d543792fbbb1/download/68_grendon_substation_load.zip
curl -L https://connecteddata.nationalgrid.co.uk/dataset/ef70c80f-1b03-4c58-b1af-b63197764642/resource/f17430d9-267b-455f-9449-f36e02599d6c/download/69_ratcliffe_substation_load.zip
curl -L https://connecteddata.nationalgrid.co.uk/dataset/ef70c80f-1b03-4c58-b1af-b63197764642/resource/7b651637-2163-4f3f-949e-901d978384ad/download/70_staythorpe_substation_load.zip
curl -L https://connecteddata.nationalgrid.co.uk/dataset/ef70c80f-1b03-4c58-b1af-b63197764642/resource/54f9fe91-3a72-4db5-bf99-8beba11002e9/download/71_walpole_substation_load.zip
curl -L https://connecteddata.nationalgrid.co.uk/dataset/ef70c80f-1b03-4c58-b1af-b63197764642/resource/146d9124-d41b-4022-9500-0d3d28ecad89/download/73_west-burton_substation_load.zip
curl -L https://connecteddata.nationalgrid.co.uk/dataset/ef70c80f-1b03-4c58-b1af-b63197764642/resource/71cdfcb1-9a99-499c-b12c-69c480e115a6/download/75_willington_substation_load.zip
curl -L https://connecteddata.nationalgrid.co.uk/dataset/ef70c80f-1b03-4c58-b1af-b63197764642/resource/98feaa4e-a30b-4747-a361-9e00b0923d23/download/77_bushbury_substation_load.zip
curl -L https://connecteddata.nationalgrid.co.uk/dataset/ef70c80f-1b03-4c58-b1af-b63197764642/resource/f7dc979e-e2d9-4c5b-8c28-115787281282/download/78_bustleholm_substation_load.zip
curl -L https://connecteddata.nationalgrid.co.uk/dataset/ef70c80f-1b03-4c58-b1af-b63197764642/resource/134d96d3-9342-4c67-9740-c2bcc4eb4f9a/download/80_feckenham_substation_load.zip
curl -L https://connecteddata.nationalgrid.co.uk/dataset/ef70c80f-1b03-4c58-b1af-b63197764642/resource/4dca15ea-025b-462e-891c-e82933bf5d8f/download/81_iron-acton-wm_substation_load.zip
curl -L https://connecteddata.nationalgrid.co.uk/dataset/ef70c80f-1b03-4c58-b1af-b63197764642/resource/5cfa00b9-75b4-4de6-abbc-02f6343c6207/download/82_ironbridge-and-shrewsbury_substation_load.zip
curl -L https://connecteddata.nationalgrid.co.uk/dataset/ef70c80f-1b03-4c58-b1af-b63197764642/resource/02a11678-1d51-4675-9d2a-349e41741f0e/download/83_kitwell_substation_load.zip
curl -L https://connecteddata.nationalgrid.co.uk/dataset/ef70c80f-1b03-4c58-b1af-b63197764642/resource/149007ab-8154-43ab-99b6-0f3bd3033e09/download/84_lea-marston-wm_substation_load.zip
curl -L https://connecteddata.nationalgrid.co.uk/dataset/ef70c80f-1b03-4c58-b1af-b63197764642/resource/a3409c4b-6a99-4982-91db-442924ffc807/download/85_nechells-east_substation_load.zip
curl -L https://connecteddata.nationalgrid.co.uk/dataset/ef70c80f-1b03-4c58-b1af-b63197764642/resource/7f3c4d96-ad7e-481a-a525-4446cc971b17/download/86_ocker-hill_substation_load.zip
curl -L https://connecteddata.nationalgrid.co.uk/dataset/ef70c80f-1b03-4c58-b1af-b63197764642/resource/3d199d7a-acae-4182-89b2-6788a992e0e1/download/87_oldbury_substation_load.zip
curl -L https://connecteddata.nationalgrid.co.uk/dataset/ef70c80f-1b03-4c58-b1af-b63197764642/resource/9201f7cd-7227-4f06-a32e-27cd9bdf1215/download/88_penn_substation_load.zip
curl -L https://connecteddata.nationalgrid.co.uk/dataset/ef70c80f-1b03-4c58-b1af-b63197764642/resource/7d001c69-7803-44c1-9b8f-5ea6c505a408/download/90_rugeley_substation_load.zip
curl -L https://connecteddata.nationalgrid.co.uk/dataset/ef70c80f-1b03-4c58-b1af-b63197764642/resource/ba0d85e3-6bd8-4fe0-88af-799f6c0bd463/download/91_willenhall_substation_load.zip
curl -L https://connecteddata.nationalgrid.co.uk/dataset/ef70c80f-1b03-4c58-b1af-b63197764642/resource/8bb7d73a-0671-4350-872e-1e452817add4/download/92_aberthaw-and-cardiff-east_substation_load.zip
curl -L https://connecteddata.nationalgrid.co.uk/dataset/ef70c80f-1b03-4c58-b1af-b63197764642/resource/946f923e-0545-4840-82e6-69f89d2258cf/download/93_margam_substation_load.zip
curl -L https://connecteddata.nationalgrid.co.uk/dataset/ef70c80f-1b03-4c58-b1af-b63197764642/resource/45b2d0d1-9637-41c9-b4af-982d5073c1a8/download/94_pembroke_substation_load.zip
curl -L https://connecteddata.nationalgrid.co.uk/dataset/ef70c80f-1b03-4c58-b1af-b63197764642/resource/b8be8dfe-1cd3-47b4-8529-1ba984d25158/download/95_pyle_substation_load.zip
curl -L https://connecteddata.nationalgrid.co.uk/dataset/ef70c80f-1b03-4c58-b1af-b63197764642/resource/3b1e5e65-6e63-4410-86ed-3f6b31e19991/download/96_rassau_substation_load.zip
curl -L https://connecteddata.nationalgrid.co.uk/dataset/ef70c80f-1b03-4c58-b1af-b63197764642/resource/9826536c-eae4-42a5-9b60-ef6e46e42569/download/98_upper-boat_substation_load.zip
curl -L https://connecteddata.nationalgrid.co.uk/dataset/ef70c80f-1b03-4c58-b1af-b63197764642/resource/e14904a5-58d5-4eb9-9aae-13ad3d320921/download/99_uskmouth_substation_load.zip