To access the Secondary Network section of our Open Data Portal please submit a request using the following form. This section of the Portal is subject to our Shared Data Licence Terms and Conditions within the attached link.
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The "Secondary Transformer Expected Utilisation" data table provides the expected peak utilisation of secondary transformers within our SP Distribution (SPD) and SP Manweb (SPM) licence areas.
We do not monitor the power flows through the secondary network. We are installing over 14,000 monitors at secondary substations over the next five years, but in the meantime our expected utilisation needs to be derived from a variety of sources including the After Diversity Maximum Demand (ADMD) index, as described below.
The table gives the following information:
- Expected utilisation for each secondary substation
- Transformer count per secondary substation
- Location of secondary substation
For additional information on column definitions, please click the Dataset schema link below.
Disclaimer
Whilst all reasonable care has been taken in the preparation of this data, SP Energy Networks does not accept any responsibility or liability for the accuracy or completeness of this data, and is not liable for any loss that may be attributed to the use of this data. For the avoidance of doubt, this data should not be used for safety critical purposes without the use of appropriate safety checks and services e.g. LineSearchBeforeUDig etc. Please raise any potential issues with the data which you have received via the feedback form available at the Feedback tab above (must be logged in to see this).
Utilisation data may not necessarily reflect any new connection agreements that have been entered into since the time at which the maximum demand reading was last recorded. We have redacted expected utilisation data where there are fewer than five customers supplied by the transformer in question. We do not apply any weather correction calculations to this dataset.
Data Triage
As part of our commitment to enhancing the transparency, and accessibility of the data we share, we publish the results of our Data Triage process.
Our Data Triage documentation includes our Risk Assessments; detailing any controls we have implemented to prevent exposure of sensitive information. Click here to access the Data Triage documentation for the Secondary Network dataset.
To access our full suite of Data Triage documentation, visit the SP Energy Networks Data & Information.
Download dataset metadata (JSON)