Long Term Development Statement

As we journey to Net Zero our energy networks are evolving rapidly – alongside the customers who make use of them. By sharing detailed information on our Distribution Networks in our Long Term Development Statements (LTDS), we allow these customers to make high level assessments of opportunities to connect to and support our networks.

The LTDS is the main information source for developers wishing to connect to our Distribution Networks and enables them to identify opportunities and carry out initial assessments of the capability of the network to support their demand or generation development. Future network development plans are included to advise existing and potential users of significant changes to the system, which may have an impact on their development plans.

Alongside the LTDS publications, we provide additional network planning and development documents including the Network Development Plan (NDP) and Distribution Future Energy Scenarios (DFES). The NDP and DFES provide a medium to long term outlook for the availability of capacity.

SP Distribution Long Term Development Statement

SPD LTDS Appendices

SPD LTDS Appendices

• Appendix 1: Circuit Data (Table 1)
• Appendix 2: Transformer Data (Table 2)
• Appendix 3: System Loads (Table 3)
• Appendix 4: Fault Levels (Table 4)
• Appendix 5: Embedded Generation (Table 5)
• Appendix 6: Connection Activity (Table 6)
• Appendix 7: Substation Abbreviation Codes (Table 7)
• Appendix 8: Predicted Changes (Table 8)
• Appendix 9: System Schematics
• Appendix 10: Geographic Plans
• Appendix 6: Connection Activity (Table 6) - Mid-year update (2025)

SP Manweb Long Term Development Statement

SPM LTDS Appendices

SPM LTDS Appendices

• Appendix 1: Circuit Data (Table 1)
• Appendix 2: Transformer Data:
  • Transformer Data (Table 2) 132 to 33kV
  • Transformer Data (Table 2) 33kV to HV
• Appendix 3: System Loads:
  • System Loads (Table 3) EHV Forecast
  • System Loads (Table 3) EHV Historic
  • System Loads (Table 3) HV Forecast
  • System Loads (Table 3) HV Historic
• Appendix 4: Fault Levels:
  • Fault Levels (Table 4) 132kV 1ph
  • Fault Levels (Table 4) 132kV 3ph
  • Fault Levels (Table 4) 33kV 3ph
  • Fault Levels (Table 4) HV
• Appendix 5: Embedded Generation (Table 5)
• Appendix 6: Connection Activity:
  • Connection Activity (Table 6) 132kV
  • Connection Activity (Table 6) 33kV
  • Connection Activity (Table 6) HV
• Appendix 7: Substation Abbreviation Codes (Table 7)
• Appendix 8: Predicted Changes (Table 8)
• Appendix 9: System Schematics
• Appendix 10: Geographic Plans
• Appendix 6: Connection Activity: Mid-Year Update 2025:
  • Connection Activity (Table 6) 132kV
  • Connection Activity (Table 6) 33kV
  • Connection Activity (Table 6) HV