HV Engineering upto and inc. 33kV

The continued drive to expand production capabilities can put a strain on the electrical infrastructure and cause anomalies such as tripping and faults.

At Addison Project we have experienced high voltage engineers who are able to provide support and guidance on any electrical issues upto and including 33kV. This is supported by our Amtech software with which we also have the capability to complete the required load / fault studies to provide substance behind our findings.


Our high voltage expertise is accredited to NERS (National Electricity Registration Scheme) which provides us with the opportunity to compete for contestable works associated with the installation of electrical connections with the various DNOs. Our current NERS accreditation includes under design and project management:


  • LV Cable Network to Commercial/Industrial Properties
  • HV Cable Networks up to 33kV
  • Substations up to 33kV

Project Management

  • Cable laying upto 33kV
  • Cable jointing including LV dead up to and including 33kV
  • Substation installation up to and including 33kV

This has seen our involvement on some prestigious projects including the new container port in Essex, the London Gateway Project, on which we provided the HV design and engineering to support 22 primary substations. This project was further complemented by our civil and structural design expertise as we were able to offer a full design of the substations from a civil/ structural and electrical capacity which increased efficiency as our client was only dealing with a single design interface.

Our electrical capability also includes the ability to deliver what we plan with our engineers suitably qualified “SAP” (Senior Appointed Persons) available to switch and commission as required.

50 Million Pound Projects Undertaken

"I’d just like to let you know how impressed I’ve been with the way your engineers have worked together with us on this project." High Performance Plastics Producer