External Technical Assurance – Health Index & Load Index Audit, UK Power Networks

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UK Power Networks engaged GHD to perform an external technical audit of its regulatory submissions for the Health Index (HI) and the Load Index (LI). These two key performance indicators are used by the country’s regulator to confirm that asset management practices are delivering the required outputs.

UK Power Networks is one of the country’s largest electricity Distribution Network Operators (DNO), responsible for the distribution of electricity for London, South-East England and East Anglia. The HI relates to the condition of the distribution assets and includes the application of the Common Network Asset Indices Methodology (CNAIM); while the LI relates to the substation loading.

Our team worked with UK Power Networks’ staff to understand how information was collated and how data was used to report on the key performance indicators. Our audit assessed each stage of UK Power Networks’ systems and processes – from onsite validation of field assessments, processing and validation of collected data and the production of the final regulatory submission.

Our work has provided UK Power Networks with assurance that their regulatory HI and LI submissions are valid, consistent and accurate. We also identified a number of recommendations to further improve and streamline the company’s systems and processes.

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