United Energy
United Energy

HV (high voltage) customers

High voltage (HV) customers have additional obligations compliant with The Blue Book and section 9 of the Victorian Electricity Distributors Service and Installation Rules.

HV customer isolation requests

This information applies to new or existing customers connecting to United Energy’s high voltage network (i.e., 11 kV, 22 kV or 66 kV) in accordance with the Victorian Electricity Distributors Service and Installation Rules.

Existing HV customers wanting to arrange HV isolation can do so by completing our HV isolation request form.

Please allow a minimum of 40 days for the isolation to be arranged once we have accepted your request and payment is received.

HV customer information

Relevant standards

The following standards apply to customers connected to United Energy’s HV network.

Contracts and agreements

A customer requiring a supply of electricity at high voltage shall be required to enter into:

  • An electricity supply contract with a retailer;
  • An agreement with a metering coordinator; and
  • An electricity distribution connection agreement, contract or deemed electricity distribution contract.

And where applicable:

  • An extension agreement with United Energy; and/or
  • An electricity distribution demand agreement or contract.

Types of contracts

  • Specification and Design Services Contract (SDSC): This is the agreement to establish the project’s scope, specifications and carry out preliminary design to remove uncertainty. An SDSC outlines how we will undertake design investigation activities and determine design certainty.
  • Negotiated Connection Contract (NCC): This is the agreement for work required to connect to our distribution network. We issue an NCC for new power supply services (temporary and permanent). This will outline terms and conditions for your project, including what is needed to provide connections to the distribution network, the expected cost, any applicable rebates.
  • Recoverable Works Contract (RWC): This is the agreement for work required to rearrange the existing distribution network. We issue an RWC for abolishments and asset relocations.

Obligations of HV customers

  • Operation and maintenance as per the SIR.
  • HV customer to manage their own HV operators or a nominated HV operating company for the site. Site operators to be authorised and trained by an accredited organisation.
  • There should be a HV responsible person for the site (24/7 contact).
  • Site to comply with Blue Book requirements.
  • HV customer to develop and maintain up to date HV safety and operating procedures.
  • Maintain HV substations in good order and ensure any malfunction should not create a hazard or interference to United Energy’s distribution network.
  • Submit an application for approval associated with any changes/modifications to the site HV reticulation.
  • Advise United Energy of any transfer of ownership of site.
  • Provide United Energy with information requested in relation to the site HV reticulation. For example:
    • Protection settings
    • SLD
    • CT ratios
    • HV Authorised Contact List

Applying for a HV connection

Our online connection application service on myEnergy is available for customers to:

  • Request a preliminary enquiry for a HV connect, for example:
    • a budgeting quotation
    • options for a new connection
    • options for a modification to an existing connection.
  • Request a new HV connection
  • Request an alteration to an existing HV connection.

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