EVALUATION

AN INDEPENDENT EVALUATION OF THE LCNF
Has the potential to deliver net
financial benefits to future and/or
existing customers
Has a Direct Impact on the operation
of a DNO’s Distribution System
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Assessment:
Compelling evidence that the project is highly likely to deliver significant financial benefits in the long term
(ED2 and beyond) to the majority of customers
Evidence:
National Fault and Interruption Reporting Scheme (NAFIRS) data for pre and post Bidoyng installation
shows a fall on number of customers interrupted and a fall in customer minutes lost.
The details are high level and for 1 year only.
Close out report states that “it is estimated that an average penalty of £500 is avoided with every Smart
Fuse low voltage feeder supply restoration.” The project did not set out to calculate total financial benefit
and did not undertake this task.
It is clear that the reductions in CI and CML are significant and would be sustained for a wide number of
customers – if Bidoyng fuses are adopted at scale.
References:
• Close-down report, May 2014
Assessment:
The project has been / is ready to roll out into BAU. Other DNOs have included the project in their
business plans.
Evidence:
The use of the Smart Fuse in Electricity North West is now written into Code of Practice 617 - Fault
Location Techniques for the LV Underground Network.
The fuse is marketed on the Kelvatek web site with a video showing the interest and use of the fuse by
several DNOs.
References:
• Close-down report
PÖYRY MANAGEMENT CONSULTING
October 2016
713_Poyry_Report_Evaluation_of_the_LCNF_FINAL_Oct_2016_v700.docx
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