Six bidders shortlisted in tender for three offshore transmission links

Publication date
1st March 2017
Information type
Policy area

Ofgem has today announced shortlists of bidders competing to own and operate transmission links to the Dudgeon, Rampion and Race Bank windfarms off the coasts of Norfolk and Sussex. The following bidders have been shortlisted:

Dudgeon Rampion Race Bank
Balfour Beatty Investments Balfour Beatty Investments

Balfour Beatty Investments

Equitix Equitix Equitix
Diamond Transmission Partners Diamond Transmission Partners Diamond Transmission Partners
Mari Energy Transmission Mari Energy Transmission Transmission Capital Partners
Transmission Capital Partners Transmission Capital Partners Triton Transmission

The three links are the first of five to be tendered under the fifth round of the Offshore Transmission Owner (OFTO) regime. The fifth round has an estimated value of £2 billion and will connect 2.3GW of generation capacity, making it the biggest tender round to date.

The shortlists show there is strong competition to own and operate the links, which will help keep costs low for consumers. The bidders will now go through to the final Invitation to Tender (ITT) stage. Following the ITT stage, Ofgem will appoint the OFTO for each link. The OFTO will receive a guaranteed revenue stream for 20 years under the terms of their licence, subject to the availability of their assets.

Ofgem will announce the details of the preferred bidder for each project at the completion of each ITT evaluation stage.                                                     

Notes to editors

  • Diamond Transmission Partners is a consortium of Mitsubishi Corporation and HICL.
  • Mari Energy Transmission is a consortium of Macquarie Capital Group Limited and Frontier Power Limited.
  • Transmission Capital Partners is a consortium of International Public Partnerships Limited and Transmission Capital Partners Limited Partnership.
  • Triton Transmission is a consortium of Dalmore Capital Limited and DIF Infra 4 UK Ltd.

The second tranche of Tender Round 5 (TR5) will commence on 13 March 2017 for the Walney Extension and Galloper projects. The TR5 portal will be open for submissions for the two projects for eight weeks.

See the project information.

About Ofgem

Ofgem is the independent energy regulator for Great Britain. Its priority is to make a positive difference for consumers by promoting competition in the energy markets and regulating networks.

For facts, figures and information about Ofgem’s work, see Energy facts and figures or visit the Ofgem Data Portal

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