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A frozen SP Electricity North West record of transformer ratings, estimated load and installed generation. Demand and generation headroom stay separate in kVA, with source methods and quality flags beside each record.
The complete export contains 50,145 rows. Of these, 33,198 identify a transformer and carry all six numeric fields. The remaining 16,947 contain a rating alone, with no identity, location or headroom. They remain in the downloads and source-quality counts.
The table defaults to 33,195 identified records at the stated 11kV and 6.6kV voltages. Seventeen have no coordinates. A further three identified records carry 240V or 415V labels and can be included as source exceptions. Locations do not establish service areas or property connections.
31,410 identified records use Connected Load Scaling and 1,788 carry the PRESense label. Those labels remain distinct. Neither supplies an observation period here. The source does not establish live monitoring for this frozen edition.
Forty-six records contain negative estimated load and nine have utilisation at or above 1,000%. These values remain as published, with flags. Arithmetic agreement does not verify their physical accuracy or establish a connection opportunity.
Source: SP Electricity North West, Distribution TX. Counts are derived from the complete retained export.
33,195 matching identified transformer records. Rating-only rows remain in the source downloads.
The frozen values reconcile with rating less load or generation, floored at zero. Utilisation follows the larger of load and generation relative to rating. These are checks on this edition, rather than a separately published engineering specification. The publisher category can reflect either direction.
Headroom is reported apparent power in kVA. No power factor is supplied for a kW conversion. Values are not added across transformers or operators. Circuit, upstream, voltage and protection limits are not established by these fields. Capacity changes and new connections require ENWL assessment and approval.
The data was processed on 24 March 2026 and captured on 25 October 2026. The observation period, original publication and per-record revision dates are unknown. The publisher declares annual updates; this site serves one edition with no automatic refresh.
32,816 distribution numbers describe 33,198 transformers. A shared distribution number or coordinate does not make two transformer records duplicates. Source names are retained without filling missing electrical connections.
Reused under the dataset-specific Creative Commons Attribution 4.0 grant. Source attribution and third-party notices are retained. The frozen response, completeness classification and display formatting are the changes made here. Source zeros, missing values and signed loads remain distinct. No endorsement is implied.
SP Electricity North West; DSO Data Integration; Office for National Statistics licensed under the Open Government Licence v.3.0 Contains OS data © Crown copyright and database right [2019-]
Full downloads include the 16,947 incomplete rows. Source JSON is approximately 35MB. CSV blanks represent nulls; normalized JSON preserves nulls and stores numeric lexemes as strings.
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Northern Powergrid · SSEN headroom · Great Britain evidence. Each edition retains its own geography, units and dates.