Consultancy & Policy Support

  • Asset Health

    We work with our customers to understand the condition of their assets and actions required in order to minimise breakdowns, increase availability and prolong asset life. We employ world leaders in high voltage technologies and therefore we can help customers with a broad range of enquiries.

  • Harmonics

    Our harmonic consulting services can assist customers in fulfilling their obligations, delivering key design outputs and providing advice and recommendations on how to ensure compliance. Download our Harmonics leaflet for full details.



  • Earthing Studies

    Rise of Earth testing includes determining the earth return current for a given customers required location. We will then produce a report and assessment of these results. Download our Ask the Experts document for further information on Earthing Studies and download our Earthing Studies leaflet for more information on what we can offer.

  • Electro Magnetic Fields (EMF)

    Our EMF team can carry out assessment work on the magnetic fields of plant and equipment on behalf of our customers and report on these results. Download our EMF leaflet for full details and contact us with your requirements.



To provide a more flexible, tailored service to our customers, the extensive range of National Grid technical standards documents can now be purchased individually, in batches of 10, or in bulk, for greater cost efficiency.

The range of documents on offer is vast and includes Technical Specifications, Technical Guidance Notes and Transmission Procedures. These documents are now stored and sold via our intermediary supply partner, IHS, which specialises in this area of online documentation sales.

To view our portfolio of documents and purchase without delay, visit the National Grid section of the IHS website.