The Long Term Development statements provide information for anyone connecting to our distribution system at extra high voltage (EHV) level (including HV busbar of primary substations). It is designed to help to identify and evaluate opportunities for entering into arrangements with us relating to use of system or connection. Our statements include the following: network data; the likely development of our distribution system; plans for modifying the distribution system; and identification of parts of the distribution system that are likely to reach capacity limit in the next years. A long term development statement is available for each of our distribution network areas in central southern England and northern Scotland. Each statement has two sections, a summary (Part 1) and a detailed section (Part 2) both of which are available for download below.
- PDFSEPD LTDS 66 and 22 kV Geographic Map Nov 24
- PDFSEPD LTDS Schematic Diagrams Nov 23
- PDFSEPD LTDS 132&33kV Geographic Map Nov 23
- PDFSEPD Long Term Development Statement Schematic Diagrams issued Nov 2022
- PDFSEPD LTDS 66 and 22 kV Geographic Map issued Nov 2022
- URLLTDS Data Surgery Part 1 (26th February 2025)
- PDFSEPD LTDS 132&33kV Geographic Map Nov 23
- XLSXSEPD LTDS Tables Nov 23
- PDFMethodology Statement - SEPD Long Term Development Statement
- CSVLong Term Development Statement Data Definitions
- XLSXSouthern Electric Power Distribution long term development statement tables Nov 24
- LTDS Purpose and Overview
- PDFSEPD LTDS 132 and 33 kV Geographic Map issued Nov 2022
- XLSXSEPD LTDS Tables May 2024
- PDFSEPD Long Term Development Statement part 1 & 2 May 2024
- PDFSouthern Electric Power Distribution long term development statement schematic diagrams Nov 24
- PDFSEPD Long Term Development Statement Part 1 - May 2023
- PDFSEPD Long Term Development Statement Part 1 and 2
- PDFSEPD LTDS Part 1&2 Nov 23
- URLLTDS Data Surgery Part 2 - CIM Formats (26th February 2025)
- PDFSEPD LTDS 66 & 22kV Geographic Map Nov 23
- PDFSouthern Electric Power Distribution long term development statement part 1 & 2 Nov 2024
- PDFSEPD LTDS 132 and 33 kV Geographic Map Nov 24
- PDFSSEN Data Triage record for SEPD Long Term Development Statement
- XLSXSouthern Electric Power Distribution long term development statement tables May 2023