*Dataset content available to registered users only* NDP Primary Substation Voronoi Polygons Individual Polygons are created using the Voronoi methodology, each one containing a single distribution substation, these individual polygons are first grouped together (based on common attribution) then merged, to create new polygons representing the feeding areas for Primary Substations. Larger polygons representing the feeding areas of Bulk Supply Points are generated by grouping, then merging, the Primary polygons in a similar manner. While we use reasonable endeavours to ensure that the data contained within this dataset is accurate, we do not accept any responsibility or liability for the accuracy or the completeness of the content held, or for any loss which may arise from reliance on this dataset and/or its related information. If you have any query related to this NDP Primary Substation Voronoi dataset, please contact us  HERE *Actual dataset content is available to registered users only – If you have not already done so, log-in or create new account below* New User? - Create your new account HERE Already registered as an ENWL Portal User? - Log-In HERE Have you an ODS Portal account from elsewhere? - Log-In HERE