You can now share how you're using our data by submitting a "reuse" with this 'link', or via the Information tab of all our datasets.

News

09 June 2025 Join us for Hands on with our Data - an hour of live insights, demos, and Q&A with SPEN experts. Register here and be part of the conversation!

03 June 2025 Our new Network Development Plan feature pages are now live! You can access these here - SPD / SPM. We welcome any feedback you may have!

02 May 2025 As part of our commitment to transparency, we have now published our quantitative data quality assessments. You can access these here. For further details please visit our dedicated Data Quality page on the SP Energy Networks website.

Welcome to
SP Energy Networks
Open Data Portal

SP Energy Networks Open Data Portal provides access to data on our Distribution and Transmission networks. We are committed to sharing our data with our stakeholders and will be publishing additional datasets as the development of our Open Data Portal progresses.

Getting Started

To help you make the most of our Open Data Portal, we have developed this short video on how to register, navigate, and explore our Portal; and how to contact our Open Data Team.

Contact Us

Please use these forms to make a request for new datasets or to provide feedback.


If you wish to discuss your query with a member of the SPEN Data Team, you can contact us here.

Request Data

Or

Provide Feedback

What data are you looking for?

Long Term Development Statement (LTDS)


  • Timeframe: 5 year forecasts.
  • Information on the current operation and development of our 132kV, 33kV and 11kV distribution network.
Find Out More Access the Data

Network Development Plan (NDP)


  • Timeframe: 10 year forecasts.
  • Information on available capacity and our planned interventions.
SP Manweb NDP
SP Distribution NDP
Find Out More Access the Data

Distribution Future Energy Scenarios (DFES)


  • Timeframe: Forecasts to 2050.
  • Information on potential customer demand and generation metrics.
SP Manweb DFES
SP Distribution DFES
Find Out More Access the Data

Generation Connection Heat Maps


  • Interactive mapping tools to provide a geographic view of where there is available network capacity to accommodate new generation.
SP Manweb Heat Map
SP Distribution Heat Map
SP Transmission Heat Map
Access the Data

Embedded Capacity Register (ECR)


  • Information on generation and storage resources (>=50kW) that are connected, or accepted to connect, to our distribution network.
Find Out More Access the Data

Operational Data


  • Includes information on our network power flow, operational forecasting and embedded generation by type.
Access the Data

Curtailment


  • Timeframe: Historical datasets.
  • Total measured curtailment aggregated at our Grid Supply Points.
Access the Data

Flexibility


  • Timeframe: Forecast datasets.
  • Information on our flexibility services and tender processes.
SP Manweb Flexibility
SP Distribution Flexibility
Find Out More Access the Data

Local Authority Network Insight Tool (LANIT)


  • Local authorities can access the link to the LANIT NAVI tool here (supersedes the LHEES tool).
  • Please contact our Strategic Optimisation team for any enquiries.
Find Out More Access LANIT

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