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  • Low Energy Automated Networks - LEAN

  • This project will demonstrate and deploy the Low Energy Automated Networks (LEAN) solution. This consists of two methods to reduce electrical losses on the 33kV/11kV networks. You can view the Ofgem documentation for this project here

    Approximately 6% of electricity generated is lost each year in the GB distribution network, incurring costs in the region of £1bn to customers. Most of these losses occur within transformer and lower voltage circuit operation. SEPD will trial two methods to reduce losses:

    • The Transformer Auto Stop Start method will switch off one in a pair of transformers in selected substations to reduce fixed losses.
    • The Alternative Network Topology method will be deployed alongside the above where appropriate, to further reduce losses and maintain network supply integrity.

    These methods could save over 31,000MWh of electricity over 45 years, worth over £40m to GB customers. This equates to savings of 6,421 tonnes of CO2.

    All the learning that is being generated in delivery of the LEAN project can be viewed here in the Knowledge and Learning section  

  • Phase One

    • Development of Model
    • Engagement with Transformer  Specialist
    • Supplier Engagement
    • Off-network Trials
    • Requirements Specification
    • Supply Chain Engagement
  • Phase Two

    • Trial Site Selection
    • Deployment
  • Phase Three

    • Operation
    • Monitoring and Evaluation
  • Progress and latest news

    The project commenced in 2015 and Phase One has now been successfully completed.

    You can download our project submission document from our Innovation Library here. This includes full details of the project phases, and outlines the learning which has already been achieved from previous projects including Advanced Radio Control and the Isle of Wight Network Losses Reduction Study.

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