Independent Distribution Network Operators

Independent Distribution Network Operators (IDNOs) develop, operate and maintain local electricity distribution networks.

IDNO networks are directly connected to the Distribution Network Operator (DNO) networks or indirectly to the DNO via another IDNO.

What is the difference between an IDNO and a DNO?

Each of the 14 DNOs covers a separate geographical region of Great Britain. IDNOs own and operate smaller networks located within the areas covered by the DNOs. IDNO networks are mainly extensions to the DNO networks serving new housing and commercial developments.

 These are the currently licensed IDNOs:

  • Energy Assets Power Networks Limited
  • Energetics Electricity Limited
  • ESP Electricity Limited
  • Fulcrum Electricity Assets Limited
  • G2 Energy IDNO Limited
  • Harlaxton Energy Networks Limited
  • Independent Power Networks Limited
  • Leep Electricity Network Limited
  • Murphy Power Distribution Limited
  • The Electricity Network Company Limited
  • UK Power Distribution Limited
  • Utility Assets Limited
  • Utility Distribution Networks Ltd
  • Vattenfall Network Limited

IDNOs are regulated in the same way as DNOs, except the IDNO licence does not have all the conditions of the DNO licence.

We regulate the amounts that IDNOs can charge their customers for using their networks via a ‘Relative Price Control’. This requires IDNO charges to be capped for all customers at a level broadly consistent with the DNO equivalent charge.

Publications and updates

  • Published: 24th Jul 2018
  • Closed: 3rd Sep 2018
  • Consultations and responses
  • 1 Associated documents
We are consulting on the implications of licence applications from affiliates of existing licensees.

  • Published: 20th Jul 2018
  • Decisions
  • 1 Associated documents
Approval of Harlaxton Energy Networks Ltd’s Statement of Methodology and Charges for Connection.

  • Published: 23rd Apr 2018
  • Decisions
  • 1 Associated documents
Our decision to approve the proposed modification of Harlaxon Energy Networks Limited’s Use of System Charging Methodology and Use of System Charging Statement.

  • Published: 22nd Mar 2018
  • Decisions
  • 1 Associated documents
Our decision to approve the proposed Use of System Charging Methodology and Use of System Charging Statement of Fulcrum Electricity Assets Limited.

  • Published: 8th Nov 2017
  • Decisions
  • 1 Associated documents
Murphy Power Distribution Ltd’s proposed Safety and Security of Supplies Enquiry Service Statement as required by SLC 8 of its Distribution Licence.

  • Published: 6th Nov 2017
  • Decisions
  • 1 Associated documents
Approval of Fulcrum Limited’s proposed Safety and Security of Supplies Enquiry Service Statement as required by SLC 8 of its Distribution Licence.

  • Published: 6th Nov 2017
  • Decisions
  • 1 Associated documents
Approval of Vattenfall Networks Ltd’s proposed Safety and Security of Supplies Enquiry Service Statement as required by SLC 8 of its Distribution Licence.

  • Published: 1st Nov 2017
  • Consultations and responses
  • 0 Associated documents
These are the notices granting an electricity distribution licence to three IDNOs.

  • Published: 13th Sep 2017
  • Closed: 13th Oct 2017
  • Consultations and responses
  • 2 Associated documents
Notice to modify the licences that we are minded to grant Murphy, Fulcrum and Vattenfall IDNOs so that they contain only the conditions relevant to IDNOs.

  • Published: 4th Aug 2017
  • Decisions
  • 1 Associated documents
Ofgem’s decision to approve G2 Energy IDNO Ltd’s proposed Use of System Charging Methodology and Use of System Charging Statement.

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