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Auditors for the Renewables Obligation (RO) Cost to Exchequer

DESNZ & DSIT Group Commercial

This public procurement record has 1 release in its history.

Award

25 Aug 2026 at 12:35

Award Notice
Summary of the contracting process

DESNZ & DSIT Group Commercial bought independent audit and assurance services for the Renewables Obligation (RO) Cost to Exchequer. The work was intended to verify that reductions in RO costs funded by the Exchequer were accurately applied by energy suppliers and passed through to consumers. This is an energy and related services requirement, rather than an energy generation or construction contract. Delivery covered the United Kingdom. The buyer is the commercial function serving the Department for Energy Security and Net Zero and the Department for Science, Innovation and Technology, based in London. The requirement concerns scrutiny of energy suppliers’ financial treatment of RO cost reductions, requiring an auditor able to assess both the accuracy of supplier applications and the resulting consumer pass-through.

The procurement is complete and has been awarded through a limited procedure without prior publication of a competition notice, as a call-off under a CCS framework. It was evaluated on price. The single lot is recorded as cancelled, but two active awards are recorded against it: Grant Thornton UK LLP was appointed as primary auditor and PricewaterhouseCoopers LLP as secondary auditor. Each contract is valued at £3,000,000, with both contracts signed on 5 August 2026. Five bids are recorded for each award. The process therefore established primary and secondary audit provision, although no contract duration or award date is stated. The procurement falls outside the relevant directive’s scope under the rationale recorded for the framework call-off.

This procurement demonstrates demand from the Department for Energy Security and Net Zero for independent assurance over complex energy-policy costs and supplier pass-throughs. A credible competitor would need audit and assurance capability, experience examining energy suppliers’ financial applications, and the ability to test whether cost reductions funded by public money reach consumers accurately. The requirement favoured large professional-services firms: Grant Thornton UK LLP and PricewaterhouseCoopers LLP were selected as primary and secondary providers, respectively. Businesses considering similar work for this buyer would need capacity to provide both independent audit judgement and robust evidence-based testing across the UK energy-supplier market. Experience of public-sector assurance, regulated energy arrangements and handling sensitive financial data would strengthen their position when this requirement returns.

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Notice Information

Notice Title

Auditors for the Renewables Obligation (RO) Cost to Exchequer

Notice Description

Provision of independent audit and assurance services

Lot Information

Lot 1

Provision of independent audit and assurance services to verify that Renewable Obligations (RO) cost reductions funded by the Exchequer have been accurately applied by energy suppliers and passed through to consumers

Procurement Information

Call-off under CCS framework no opportunity notice required

Notice Details

Publication & Lifecycle

Open Contracting ID
ocds-h6vhtk-06eb88
Publication Source
Find A Tender Service
Latest Notice
https://www.find-tender.service.gov.uk/Notice/080825-2026
Current Stage
Award
All Stages
Award

Procurement Classification

Notice Type
Award Notice
Procurement Type
Standard
Procurement Category
Services
Procurement Method
Limited
Procurement Method Details
Award procedure without prior publication of a call for competition
Tender Suitability
Not specified
Awardee Scale
Large

Common Procurement Vocabulary (CPV)

CPV Divisions

71 - Architectural, construction, engineering and inspection services

CPV Codes

71314000 - Energy and related services

Notice Value(s)

Tender Value
Not specified
Lots Value
Not specified
Awards Value
Not specified
Contracts Value
£3,000,000 £1M-£10M

Notice Dates

Publication Date
25 Aug 2026Yesterday
Submission Deadline
Not specified
Future Notice Date
Not specified
Award Date
5 Aug 20263 weeks ago
Contract Period
Not specified - Not specified
Recurrence
Not specified

Notice Status

Tender Status
Complete
Lots Status
Cancelled
Awards Status
Active
Contracts Status
Active

Buyer & Supplier

Contracting Authority (Buyer)

Main Buyer
DESNZ & DSIT Group Commercial
Contact Name
Available with D3 Tenders Premium →
Contact Email
Available with D3 Tenders Premium →
Contact Phone
Available with D3 Tenders Premium →

Buyer Location

Locality
LONDON
Postcode
SW1A 2EG
Postcode Area
South West London
Country
England
Major Region (ITL 1)
TLI London
Basic Region (ITL 2)
TLI3 Inner London - West
Small Region (ITL 3)
TLI35 Westminster and City of London
Delivery Location
Not specified
Local Authority
Westminster
Electoral Ward
St James's
Westminster Constituency
Cities of London and Westminster

Supplier Information

Number of Suppliers
2
Supplier Names

Grant Thornton UK LLP

PricewaterhouseCoopers LLP

Further Information

Open Contracting Data Standard (OCDS)

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The Open Contracting Data Standard (OCDS) is a framework designed to increase transparency and access to public procurement data in the public sector. It is widely used by governments and organisations worldwide to report on procurement processes and contracts.

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