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  • Transmission price control review - RIIO-T1

  • Scottish Hydro Electric Transmission is the owner of the high voltage electricity transmission system in the north of Scotland. As the regional monopoly in this activity, we are regulated by the Office of Gas and Electricity Markets (Ofgem) through a ‘price control’. 

    Amongst other things, this determines the amount of revenue we can earn from users of the network to cover the efficient cost of maintaining and developing the transmission system. The current price control runs from April 2013 to 31 March 2021 and was implemented under a new regulatory framework, known as the RIIO model (revenue = incentives+innovation+outputs).  

    We had to define the service levels or outputs we expected to deliver to our customers. Ofgem determined the prices we could charge for the use of our transmission network based on delivering those service levels or outputs. If we don't meet the standards, we may have to pay penalties, but we can also secure rewards if we exceed them. Visit Ofgem's website for more information about the review.

  • Transmission documents

    Annual Performance Reports

    Business plan supporting documents

    Network Access Policy

    Stakeholder KPIs

    Summer consultation

    Transmission Losses

    Updates