Estimated Value
Up to £1,666,667
Deadline
22 May 2026
Published
2 October 2026
Type
Not specified
Overview
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.
Regulations cited
- Tender Regulations 2015
Submission
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.
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Award Details
Grant Thornton UK Advisory & Tax LLP
£1,666,000
Likely incumbents
Suppliers who won similar work from this buyer in the last 5 years.
- 1
CEPA LLP
2 contracts wonlatest 1 Sept 2026ends 31 Jul 2030£11m
total awarded
- 2
S&P DOW JONES INDICES LIMITED
2 contracts wonlatest 20 Aug 2026£146,764
total awarded
- 3
8x8 UK Limited
2 contracts wonlatest 14 Aug 2026ends 25 Jul 2030£2m
total awarded
- 4
Kelvin Construction Company Limited
2 contracts wonlatest 26 Jun 2026ends 21 Jul 2031£23m
total awarded
- 5
Chatham Financial Europe, Ltd
£542,500
total awarded
CEPA LLP is the most likely incumbent based on recency and category match. To win, bidders typically need a clearly differentiated proposition or a price advantage.
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Buyer Profile
OfgemKey Dates
Published
2 October 2026
Submission deadline
22 May 2026
Notice type
award
Source
find a tender
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