IntroductionThe Long Term Development Statements (LTDS) report on a 0-5 year period, describing a forecast of load on the network and envisioned network developments. The LTDS is published at the end of May and November each year. Long Term Development Statement Table 4a shows the 3 phase fault level at each Grid and Primary substation. Published 29 November 2024. More information and full reports are available from the landing page below: Long Term Development Statement and Network Development Plan Landing PageMethodological ApproachSite Functional Locations (FLOCs) are used to associate the Site to Key characteristics of active Grid and Primary sites — UK Power Networks ID field added to identify row number for reference purposes Quality Control Statement Quality Control Measures include: Verification steps to match features only with confirmed functional locations. Manual review and correct of data inconsistencies Use of additional verification steps to ensure accuracy in the methodology Assurance Statement The Open Data Team and Network Insights Team worked together to ensure data accuracy and consistency. Other Download dataset information: Metadata (JSON) Definitions of key terms related to this dataset can be found in the Open Data Portal Glossary: https://ukpowernetworks.opendatasoft.com/pages/glossary/