AwardedAwarded 24 July 2026

2025-122- Cost Assessment Advisors to OFTO team for Tender and Policy

Ofgem · Local or regional public body

In brief

Ofgem awarded financial services and consultancy work to Grant Thornton UK LLP on 24 July 2026.

The notice gives a value of £1,666,000 excluding VAT.

The contract runs for 4 years, starting 1 August 2026.

The buyer says it is suitable for small and medium-sized businesses.

Built from the notice's own fields. Always check the official notice before you bid.

What the notice says

Ofgem is looking to procure the necessary Cost Assessment advisors for the Offshore Transmission Owners (OFTO) team to continue its regulatory duties. Provision of these services will be crucial and without this, Ofgem will be unable to run effective tender processes for the upcoming tender rounds. Ofgem are required to run a tender exercise for all offshore transmission projects that qualify under the Tender Regulations 2015. Provision of Cost Assessment consultancy support services will be crucial to ensure that a robust tender process takes place for upcoming tender rounds and without this, Ofgem will be unable to run an effective tender process. To facilitate a robust tender evaluation…Read the full description
Ofgem is looking to procure the necessary Cost Assessment advisors for the Offshore Transmission Owners (OFTO) team to continue its regulatory duties. Provision of these services will be crucial and without this, Ofgem will be unable to run effective tender processes for the upcoming tender rounds. Ofgem are required to run a tender exercise for all offshore transmission projects that qualify under the Tender Regulations 2015. Provision of Cost Assessment consultancy support services will be crucial to ensure that a robust tender process takes place for upcoming tender rounds and without this, Ofgem will be unable to run an effective tender process. To facilitate a robust tender evaluation process, Ofgem requires the services of a supplier on various aspects of the tender and transaction process - evaluation of bidder submissions, and financial assessment required to bring the project to close/appoint an OFTO. Ofgem are required to undertake a cost assessment review of the OFTO assets for those projects that will be the subject of the tender process. This review is fundamental in determining the cost of building the transmission assets to ensure that those costs stated by the developer fairly reflect what will be transferred and that consumers are receive value for money. With this being the case, data submitted by the project developer must be carefully evaluated to ensure that assets are being transferred in the most economic and efficient manner possible.

Who won

WinnerValueDates
Grant Thornton UK LLP
2 bids received
£1,666,000
Awarded 24 July 2026

Values as the award notice gives them, excluding VAT where stated.

Timeline

  1. Tender notice · UK4, notice 037148-2026
  2. Tender notice · UK4, notice 045059-2026
  3. Contract award notice · UK6, notice 070373-2026

Last time this was bought

2025-087- Financial Advisors to OFTO team for Tender and Policy

Won by
Cepa LLP
Awarded
17 July 2026
Value
£7,916,666
Bids
3

Matched on Ofgem, the type of work and the title. Check the notice to be sure.

About the buyer

OfgemLast 12 months

Procurements

23

Awards

17

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From notice 037148-2026 on Find a Tender, first published 23 April 2026, last updated 24 July 2026. We last checked for changes on 28 September 2026.