Back to top
Reported by Ofgem on 9 October 2018

Ofgem has launched the sixth round of the offshore transmission owner regime

Ofgem is opening a tender for owning the electricity transmission link to the 1.2 gigawatt (GW) Hornsea 1 wind farm project off the coast of Lincolnshire and Yorkshire, set to be the world’s largest offshore wind farm once complete.

(Courtesy of Ofgem)

The energy regulator runs tenders to own and operate links to offshore wind farms which cuts the cost of connecting them onshore to the grid for consumers.

The link to the Hornsea 1 wind farm is one of three to be tendered in the latest round. The other tenders are for the ownership of links to the 588 MW Beatrice wind farm project off the coast of Scotland and the 714 MW East Anglia One wind farm project off the coast of East Anglia. The tenders will open at the end of October.

This is the sixth tender round Ofgem has conducted under the offshore transmission owner regime, with a total of £2 billion of transmission assets being tendered. At least £700m in savings were achieved for consumers across the first three tender rounds.

Jonathan Brearley, executive director for systems and networks at Ofgem, said: “Tendering ownership of links to offshore wind farms has already proven to be a successful way of connecting cleaner electricity generation to the networks at a lower cost for consumers. It is also a boost for competition as it attracts new players into the energy market. Over the next decade we plan to open up high value onshore grid upgrades to competition so that we continue to drive down network costs for consumers.”

Since Ofgem and Government launched the regime in 2009 winning bidders have so far invested £3 billion in links connecting 4.6GW of offshore wind farms.



Ofgem. Press release - Ofgem has launched the sixth round of the offshore transmission owner regime. URL: [Date Accessed: 09/10/2018].


01 Aug | Vineyard Wind Statement on Execution of Agreements with Massachusetts’ Electric Distribution Companies

Vineyard Wind, which is developing the first large-scale offshore wind farm in the United States, released the following statement following today’s announcement about successful conclusion of contract negotiations with the Massachusetts electric distribution companies (EDCs) for the Vineyard Wind C


31 May | Brattle Analysis: 8,000 MW to 24,000 MW of U.S. Offshore Wind Proposals will Require up to 3,000 Miles of Offshore Transmission

An analysis of U.S. offshore wind developments by Brattle economists shows that state policymakers in the northeastern U.S. are now committed to procure approximately 8,000 MW of offshore wind generation over the next decade.