Contestable vs Non-Contestable Works

Your dual offer contains two types of work:
  1. Contestable Works
    • Connection works that can be carried out by NIE Networks or by an accredited Independent Connections Provider (ICP). You have a choice when deciding who shall complete these elements of your connection.
  2. Non-Contestable Works:
    • Connection works that can only be carried out by NIE Networks for the safety and security of the distribution network. You cannot choose who completes these elements of your connection - it must be NIE Networks.
All work that needs to be carried out on the existing distribution network, such as system reinforcement and the determination of the point of connection to the network, is non-contestable. 

If you are unclear about any of the works or costs listed in your dual offer you can contact your Planning Engineer using the phone number listed on your terms letter.

Alternatively, you can get in touch with our Customer Service Team.  

Where is the boundary between Contestable and Non-Contestable Works?

The boundary between contestable works and non-contestable works will be unique for each job and will be clearly defined in your dual offer. In general, the boundary where the contestable works end and the non-contestable works begin is where work must be carried out on the existing distribution network.

Below are some examples illustrating the boundary between the connection works (in red) that may be constructed by an ICP (contestable works) and the connection works (in blue) that may only be carried out by NIE Networks (non-contestable works)

Underground supply to a new house connecting to an existing underground cable

  1. Making the final connection to the existing underground cable is non-contestable work
  2. Any work upstream of the point of connection is non-contestable Work
  3. The installation of the proposed service cable is contestable work. 
 

Underground Supply to a new house connecting to an existing overhead line

  1. New work on existing assets (installing a new transformer and transformer earths on the existing pole) and the point of connection to the overhead line is non-contestable work.
  2. The installation of the proposed service cable is contestable work.


 

Overhead Line to a new house connecting to an existing overhead line

  1. New work on existing assets (pole, cross-arm and stays) plus the first span of overhead line which connects onto the existing network is non-contestable work. 
  2. The installation of the proposed service cable and the construction of the overhead line (excluding the first span) is contestable work.

High voltage supply connecting to an existing high voltage underground cable

  1. Making the final connection to the existing underground high voltage cable and all cable testing is non-contestable work.
  2. Any work upstream of the point of connection is non-contestable work.
  3. The installation of the proposed high voltage cables is contestable work.  Trenching on public property is contestable work.

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