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Primary Substation Boundaries

Shapefiles containing the geographical representation of the Primary Substation Boundaries for SEPD & SHEPD. The primary substation areas are formed from Voronoi polygons based off the point locations of all the secondary substations fed by a given primary substation. This means that every point in a polygon is closest geographically to the assigned secondary substation. The secondary substation polygons are then dissolved with respect to the primary they are connected to form the primary supply areas.

Data and Resources

Primary Substation Boundaries SEPDZIP
Primary Substation Boundaries SEPD licence area, bundled together in a single...
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Documentation

SSEN Data Triage record for Primary Substation...PDF
SSEN Data Triage record for Primary Substation Boundaries for SHEPD & SEPD
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Methodology Statement - Primary Substation BoundariesPDF
A brief outline of the methodology used to develop the Primary Substation...
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Historic Data

Primary Substation Boundaries SHEPDZIP
Primary Substation Boundaries SHEPD licence area, bundled together in a...
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Additional Info

Field	Value
Source	https://data.ssen.co.uk/@ssen-distribution/primary-substation-boundaries
Author	SSEN Distribution
Maintainer	SSEN Distribution
Last Updated	March 19, 2025, 13:36 (UTC)
Created	November 20, 2023, 11:26 (UTC)