Case ref: MLA/2015/00086/2
Licence ref: L/2015/00306/3

Case summary

Main content

Project description

Project title

Project background

The Ormonde OWF is located approximately 10 km offshore of Walney Island, in north-west England. It consists of 30 x 5 MW turbines, giving a total project capacity of 150 MW. There is a single, 43 km long export cable from the site which makes landfall at Heysham and an offshore substation. Offshore construction of the project started in October 2010, with the site officially opened in February 2012.

The project is operated by Ormonde Energy Limited on behalf of the project owner, Vattenfall Wind Power Limited. Ormonde Energy Limited are the lead Operation and Maintenance (O&M) service provider for the main site and export cable. TC Ormonde OFTO Limited was awarded a transmission licence and took ownership of the OFTO assets (offshore substation, export cable, onshore cable and onshore substation) on 10 July 2012.

See attached document (150217 TCP Ormonde Cable Supporting Env Info v1.0) for full details

Programme of works

The proposed works include;
• 5 x cable repair events, with associated jacking-up; and
• 10 x cable remediation events (via jetting).

Cable repair events are required when a cable fault or failure is detected by the Ormonde OWF protection system. This section of the export cable will be recovered following de-burial operations where required. A new section of cable will be jointed to the cut, exposed end of the existing export cable and re-burial will subsequently be carried out via jetting.

Cable remediation events are required when lengths of the export cable have become exposed due to natural sediment transport processes. Cable re-burial will be carried out via jetting. These events will most likely be subject to pre- and post-cable inspection surveys.

See attached document (150217 TCP Ormonde Cable Supporting Env Info v1.0) for full details.

Other information

Applicant details

Mr Mike Lee / +44 20 3668 6688 / mike.lee@transmissioninvestment.com
TC ORMONDE OFTO LIMITED / Sixth Floor, 135 Cannon St, London / EC4N 5BP

Date application submitted

Date application validated

Date initial decision made

Date decision made for latest variation

Status