With our NERS accreditation, we can cover all aspects of Electrical Connections. Should you require this for housing development, commercial or industrial sites or an agricultural solar / wind project for the renewable sector.

A Circuit LTD are now  accredited with N.E.R.S (National Electricity Registration Scheme), this registration under Lloyds authority allows us to install systems up to and including 132 kv with all the UK DNOs and IDNOs.

This allows our team of experts to create and install bespoke electricity connections for every commercial and Industrial development whatever its type, size or complexity.


  • Cable Laying and associated civil works (LV, 11kV, 33kV, 66kV, 132kV)
  • Cable Jointing (LV Dead, LV Live, 11kV, 33kV, 66kV, 132kV)
  • Overhead Lines Wooden Pole (LV, 11kV, 33kV, 66kV, 132kV )
  • Overhead Lines Steel Tower (11kV, 33kV, 66kV, 132kV)
  • Sub-station Installation (11kV, 33kV, 66kV, 132kV)


  • LV Cable Networks to Domestic Properties
  • LV Cable Networks to Industrial / Commercial Properties
  • HV Overhead Networks (11kV, 33kV, 66kV, 132kV)
  • HV Cable Networks (11kV, 33kV, 66kV, 132kV)
  • Sub-station Installation (11kV, 33kV, 66kV, 132kV)

Definition of DNO: Non-Contestable and Contestable works

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Non–contestable works:

  • To be undertaken by the host DNO
  • Provision of equipment and material specifications
  • Design and determination of Point of Connection (POC)
  • Network reinforcement upstream of POC
  • Work within boundary of any site controlled by the DNO
  • Final connection to DNO system
  • Installation inspection

Contestable Works:

  • To be Undertaken by a Lloyds registered ICP
  • Design of connection from POC to customer’s site
  • Procurement of cables, switchgear, transformers required to make the connection
  • Excavation of connection route and cable installation from POC to customer’s site or Installation of overhead lines from POC to customer’s site
  • Construction/installation of the required electricity substations
  • Commissioning of the installed connection assets
  • As installed records of the connection assets