Offshore Electricity Transmission (OFTO)
Includes registering for the OFTO tender process, and details of upcoming, in-progress and completed tender rounds
Take part in the OFTO tendering process
Visit our Offshore Transmission Electronic Tendering Portal to register for the tendering process.
For any issues with the portal, email tendercoordinator@ofgem.gov.uk.
In-progress tender rounds
Tender Round 12
OFTO Tender Round 12 (TR12) started in February 2025. TR12 enables prospective bidders to compete to own the offshore transmission assets associated with Sofia Offshore Wind Farm (transmission assets expected to be worth in the region of £1.3bn).
Tender Round 11
OFTO Tender Round 11 (TR11) started in February 2024. TR11 enables prospective bidders to compete to own the offshore transmission assets associated with Dogger Bank B Offshore Wind Farm (transmission assets expected to be worth in the region of £0.8bn).
Tender Round 10
OFTO Tender Round 10 (TR10) started in January 2023. TR10 will enable prospective bidders to compete to own one or more of the offshore transmission assets associated with:
- Dogger Bank A Offshore Wind Farm (transmission assets expected to be worth in the region of £1bn)
- Neart na Gaoithe Offshore Wind Farm (transmission assets expected to be worth in the region of £0.5bn)
- Moray Offshore Wind Farm West (transmission assets expected to be worth in the region of £0.6bn)
Completed tender rounds
Information and publications related to completed tender rounds can be found here: