---
title: "Auditors for the Renewables Obligation (RO) Cost to Exchequer"
ocid: "ocds-h6vhtk-06eb88"
canonical_url: "https://d3tenders.com/contract/?ocid=ocds-h6vhtk-06eb88"
markdown_url: "https://d3tenders.com/contract/ocds-h6vhtk-06eb88.md"
json_url: "https://d3tenders.com/contract/ocds-h6vhtk-06eb88.json"
source: "Find A Tender Service"
current_stage: "Award"
buyer: "DESNZ & DSIT Group Commercial"
published: "2026-08-25"
---

# Auditors for the Renewables Obligation (RO) Cost to Exchequer

Buyer: DESNZ & DSIT Group Commercial  
Current stage: Award  
OCID: ocds-h6vhtk-06eb88

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## Summary

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.

## Notice

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

## Key Details

| Field | Value |
| --- | --- |
| Publication source | Find A Tender Service |
| Latest notice | https://www.find-tender.service.gov.uk/Notice/080825-2026 |
| 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 |
| All stages | Award |

## Dates

| Field | Value |
| --- | --- |
| Publication date | 25 Aug 2026 |
| Submission deadline | Not specified |
| Future notice date | Not specified |
| Award date | 5 Aug 2026 |
| Contract period | Not specified |
| Recurrence | Not specified |

## Values

| Field | Value |
| --- | --- |
| Tender value | Not specified |
| Lots value | Not specified |
| Awards value | Not specified |
| Contracts value | £3,000,000 |

## Status

| Field | Value |
| --- | --- |
| Tender status | Complete |
| Lots status | Cancelled |
| Awards status | Active |
| Contracts status | Active |

## Buyer

| Field | Value |
| --- | --- |
| Main buyer | DESNZ & DSIT Group Commercial |
| Locality | LONDON |
| Postcode area | South West London |
| Postcode | SW1A 2EG |
| Country | England |
| ITL 1 | TLI London |
| ITL 2 | TLI3 Inner London - West |
| ITL 3 | TLI35 Westminster and City of London |
| Local authority | Westminster |
| Electoral ward | St James's |
| Westminster constituency | Cities of London and Westminster |
| Delivery location | Not specified |

## Supplier

| Field | Value |
| --- | --- |
| Number of suppliers | 2 |
| Supplier names | Grant Thornton UK LLP; PricewaterhouseCoopers LLP |

## CPV Codes

### Divisions

- 71 - Architectural, construction, engineering and inspection services

### Codes

- 71314000 - Energy and related services

## Release History

- 25 Aug 2026 at 12:35 - Award - Award Notice - https://www.find-tender.service.gov.uk/Notice/080825-2026

## Notice URLs

- https://www.gov.uk/government/organisations/department-for-energy-security-and-net-zero

## Provenance

This Markdown file is an alternate public rendering of the D3 Tenders contract record. The canonical page is https://d3tenders.com/contract/?ocid=ocds-h6vhtk-06eb88. The underlying structured data is available as OCDS JSON at https://d3tenders.com/contract/ocds-h6vhtk-06eb88.json.