SSEN Primary Substations: Demand Headroom

Author: Greater London Authority (using SSEN data) Creation date: May 2026 Date of source data harvest: 29th May 2026 Temporal coverage: March 2026 Spatial Resolution: Primary Substation Distribution Area Geometry: Polygon Source data URL: SSEN Data Portal - Primary Substation Electricity Supply Areas SSEN Data Portal - Headroom Dashboard Data - March 2026 Data terms of use: CC BY 4.0 Data attribution: Copyright © 2026 Scottish and Southern Electricity Networks All rights reserved. Workflow Diagram: n/a Comments: Whilst every effort has been made to ensure the quality and accuracy of the data, the Greater London Authority is not responsible for any inaccuracies and/or mistakes in the information provided.