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

Transactional Services group appoints two partners in Singapore

Multinational law firm Pinsent Masons has appointed Transactional Services partners Nicholas Hanna and Mark Tan, as it grows its corporate capabilities in Singapore.

Best Lawyers Germany 2020: 23 Pinsent Masons' partners ranked

Handeslblatt and Best Lawyers recognised 23 partners of multi-national law firm Pinsent Masons as Best Lawyers in Germany 2020.

Pinsent Masons hires real estate regulatory and investment partner in Germany

Multinational law firm Pinsent Masons has hired real estate funds regulatory and investment specialist Dorothee Atwell into its Frankfurt office

People who viewed this press release also viewed

Show me all press releases

Transactional Services group appoints two partners in Singapore

Multinational law firm Pinsent Masons has appointed Transactional Services partners Nicholas Hanna and Mark Tan, as it grows its corporate capabilities in Singapore.

Best Lawyers Germany 2020: 23 Pinsent Masons' partners ranked

Handeslblatt and Best Lawyers recognised 23 partners of multi-national law firm Pinsent Masons as Best Lawyers in Germany 2020.

WSW first place in German Public Utility Awards

A group-wide Power2Gas project within the WSW-Group was awarded first prize at the German Public Utility Awards 2019.

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