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G81 Library

We have prepared a number of detailed design, technical specification and operational documents for the planning and design of connections to the network.

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Page 1

We've recently updated our G81 Library.

If you've accessed it before, you may need to review and accept our terms and conditions again before regaining access. Once you do, you'll get immediate access. If you have any trouble, feel free to reach out to us at ssenwebsite@sse.com—we're happy to help!

  • G81 Design and Operational Documents for Comment
  • Secondary Distribution Substations
  • Primary Distribution Substations
  • Distributed Generation
  • Grid Distribution Substation
  • EV, HP and BESS Specific
  • Unmetered Connections
  • Low Voltage Cables and Terminations
  • 22kV and 33kV cables and terminations
  • 6.6 kV and 11 kV cable and terminations
  • Jointing Instructions
  • 66kV and 132kV cables and terminations

Page 2

  • Overhead Lines on Wooden Poles
  • Overhead Lines on Steel Towers
  • Transmission
  • Access to Infrastructure
  • Safety Bulletins
  • Operational Documents
  • Product Update
  • Site Sketches Information
  • Access SCR Curtailable Connections and Flexible Solutions

Do you wish to speak with us?

If you wish to comment on any of our updates or have a query on our engineering documents, please e-mail us and our team will get back to you.

G81.Feedback@sse.com

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Copyright © 2025 Scottish and Southern Electricity Networks
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Scottish and Southern Electricity Networks is a trading name of: Scottish and Southern Energy Power Distribution Limited Registered in Scotland No. SC213459; Scottish Hydro Electric Transmission plc Registered in Scotland No. SC213461; Scottish Hydro Electric Power Distribution plc Registered in Scotland No. SC213460; (all having their Registered Offices at Inveralmond House 200 Dunkeld Road Perth PH1 3AQ); and Southern Electric Power Distribution plc Registered in England; Wales No. 04094290 having their Registered Office at No. 1 Forbury Place 43 Forbury Road Reading RG1 3JH which are members of the SSE Group

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