Pinsent Masons advises Diamond Transmission Partners Walney Extension Limited on £447m acquisition and financing of offshore transmission assets

11 Jun 2020 | 03:17 pm | 1 min. read

Multinational law firm Pinsent Masons has advised Diamond Transmission Partners Walney Extension Limited on the £447m acquisition and financing of the transmission assets relating to the 659MW Walney Extension offshore windfarm from Walney Extension Limited.

This regulated divestment of transmission assets, including the onshore substation, export cables and offshore substations, took place in accordance with tender round 5 of Ofgem's offshore transmission owner (OFTO) regime, whereby DTP Walney Extension was awarded an offshore transmission licence to own and operate the transmission assets following a competitive tender.

DTP Walney Extension is a partnership between Diamond Transmission Corporation Limited (a wholly owned subsidiary of Mitsubishi Corporation), HICL Infrastructure PLC, and Chubu Electric Power Company Netherlands B.V. (a wholly owned subsidiary of Chubu Electric Power Co., Inc.).

Walney Extension is a shared-ownership project between Ørsted (50%) and the project’s partners PFA and PKA (25% each).

The multidisciplinary London and Glasgow based Pinsent Masons team that advised DTP Walney Extension included Senior Associate David Ross and Solicitor Catherine Lusher advising on property aspects. Associate Philippa Godwin and Solicitor Imogen Dewar advising on planning and regulatory issues, Partner Murdo Maclean and Solicitor Beren Shorman advising on energy regulatory, projects and construction law matters and Partner Stephen Tobin, Senior Associate Michael Marston and Paralegal Tai Nguyen advising on financing matters. The acquisition team was led by Legal Director David Trethowan.  

Commenting on the deal David Trethowan said, "We are proud to have supported the Diamond Transmission consortium on another acquisition and financing of offshore transmission assets as part of the Ofgem competitive tender regime,  particularly given the current challenging circumstances.  The successful completion of this transaction is a further demonstration of the firm's market-leading expertise in the offshore wind and offshore transmission sector".

Latest press releases

Show me all press releases

Pinsent Masons advises Hairburst on its sale to JD Sports

Multinational law firm Pinsent Masons has advised premium haircare brand Hairburst on its majority stake sale to sports giant JD Sports.

Pinsent Masons commits to London Data Charter to tackle London’s biggest challenges

Multinational law firm Pinsent Masons has created, and committed to, the London Data Charter - a statement of intent that organisations, both public and private, can adopt to put data at the heart of solving London’s biggest challenges.

Pinsent Masons bolsters Climate Change Mitigation and Sustainability team

Multinational law firm Pinsent Masons has named Michael Watson as its new Head of Climate Change Mitigation and Sustainability team, and appointed former OFGEM General Counsel, Euan McVicar, as Senior Climate Adviser.

People who viewed this press release also viewed

Show me all press releases

Pinsent Masons bolsters Climate Change Mitigation and Sustainability team

Multinational law firm Pinsent Masons has named Michael Watson as its new Head of Climate Change Mitigation and Sustainability team, and appointed former OFGEM General Counsel, Euan McVicar, as Senior Climate Adviser.

Pinsent Masons wins Construction Law Firm of the Year at the Asian Legal Business Hong Kong Law Awards

Multinational law firm Pinsent Masons has been named Construction Law Firm of the Year at the Asian Legal Business Hong Kong Law Awards. This is the eleventh time in twelve years that the firm has been awarded the Construction Law Firm of the Year accolade.

Pinsent Masons hires prominent energy partner in Aberdeen

Multinational law firm Pinsent Masons has appointed oil and gas specialist, Bruce McLeod, as a partner based in its Aberdeen office.

For all media enquiries, including arranging an interview with one of our spokespeople, please contact the press office on

+44 (0)20 7418 8199 or 

Location contacts