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Secondary Substation Electricity Supply Areas

This dataset presents the illustrative supply areas for secondary substations across the SSEN licence areas. The dataset is generated using the point locations of secondary substations and generating catchment areas (Voronoi polygons) for each of these substations.

Data and Resources

SEPD_Secondary_Substation_ElectricitySupplyArea...ZIP
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SEPD_Secondary_Substation_ElectricitySupplyArea...GeoJSON
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SHEPD_Secondary_Substation_ElectricitySupplyAre...ZIP
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SHEPD_Secondary_Substation_ElectricitySupplyAre...GeoJSON
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Reports and Documents

Methodology Statement - Secondary SubstationPDF
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Additional Info

Field	Value
Source	https://data.ssen.co.uk/@ssen-distribution/secondary-substation-esa
Author	SSEN Distribution
Maintainer	SSEN Distribution
Last Updated	September 9, 2025, 08:00 (UTC)
Created	May 7, 2025, 11:21 (UTC)