Skip to main content


Performance summary 2017/2018

  • Overview of outputs

    Improve by 20% the time taken to provide a response to customers who want to use LCTs.(See note 1 below)

    We have introduced new processes to allow us to report on LCT response times and will compare response times to this benchmark performance in the future.

    Identify LCT hotspots using information from smart meters, expert organisations and local authorities, and use this information when making decisions.

    Information on the location of LCT hotspots has been added to our systems.

    Selectively replace assets using larger assets in areas where more LCTs may be connected to our network.

    We carried out 27 asset replacement projects, using larger assets, as a result of using information about LCT hotspots.

    Reduce costs for future customers by developing smart solutions to provide alternative and innovative techniques for managing our network.

    We had 26 innovation projects in progress during the year.

    Provide additional network capacity by using traditional or smart methods.

    We issued 174 alternative connection quotations and connected five sites.  We launched our strategy for changing to the role of Distribution System Operator.

  • Overview of outputs

    Install oversized transformers when replacing assets in areas where demand for power may become higher than equipment can cope with.

    We installed 25 oversized transformers.

    Use larger cables when installing new network in LCT hotspots.

    We installed 500 metres of larger cable in LCT hotspots.

  • Overview of outputs

    Replace 55km of overhead lines in National Parks and AONBs with underground cables.(See note 1 below)

    To date during RIIO-ED1, we have replaced 16.7km of overhead lines with underground cables.

  • Overview of outputs

    Make sure all replacement vehicles have lower CO2 emissions than those they are replacing.

    We have procurement processes in place to make sure that replacement vehicles have lower emissions.  We are trialling the use of alternative fuels in work vehicles.

    Make sure all new or substantially refurbished buildings meet, as a minimum, the excellent standard under the Building Research Establishment Environmental Assessment Method (BREEAM).(See note 2 below)

    One new depot achieved the ‘excellent’ standard under BREEAM.  One refurbished depot achieved the ‘very good’ standard, the maximum rating for a refurbished building.

    Reduce the amount of waste sent to landfill by 20% over the first two years of RIIO-ED1 and 5% per year after this.

    We have seen a reduction in the amount of waste that we produce as a business. However, we are slightly above our target for the year for reducing the amount of waste sent to landfill.

    Reduce our carbon footprint by 5%.(See note 1 below)

    Our business carbon footprint has reduced by 13% compared with 2012/13.  We have beaten our in-year target.

  • Overview of outputs

    Reduce by 75% the amount of oil lost through leaks from oil-filled cables.(See note 1 below)

    To date, the amount of oil lost from oil-filled cables has reduced by 47.6% from our benchmark performance.

    Reduce by 17% the amount of SF6 gas that is lost from switchgear.(See note 1 below)

    The amount of SF6 gas lost as a percentage of the total amount of SF6 used on our network has reduced from 0.47% in 2015/16 to 0.26% in 2017/18 for the whole of our area.  However, we missed our in-year targets in the South West and South Wales.

    Install effective oil containment bunds around plant containing high volumes of oil.

    We have completed work on 113 new and refurbished bunds so far in RIIO-ED1, going further than our forecast of 104 bunds.

Note 1: This target is for the full eight-year RIIO-ED1 period, not for each separate year.

Note 2: This target is for each year of RIIO-ED1.

You may be interested in...

Our Business Plan

Our Business Plan sets out a view of our future and has been influenced by engagement with our stakeholders. 

Find out more

Ofgem SECV Incentive

Customer engagement is vital to continuously improve our connections services.

Find out more

Our Consultation Process

Our customers pay for all we do so have a right to expect a high standard of service and have confidence that we are delivering.

Find out more