Official UK procurement notice
Zero Carbon Accelerator - Call Off 2
Authority: Transport for London (Public body)·On behalf of: Greater London Authority (GLA)
What is being bought
Published requirement descriptionThe Zero Carbon Accelerator (ZCA) is a revenue programme supporting London-based organisations. It helps them overcome the financial, technical and organisational barriers that prevent decarbonisation at the rate and scale needed to meet the Mayor's 2030 net-zero target.
The ZCA is a key tool for 'driving a pipeline of viable and investible decarbonisation projects' in the Mayor's Reducing Non-Residential Emissions (RNRE) programme. It is the GLA's main way of strengthening demand for various green finance and grant opportunities.
This Call-Off Contract value for provision of ZCA services to the GLA from the single supplier framework will be £5,000,000 (exclusive of VAT) over two years. This contract has the potential to extend in sector focus and duration, subject to meeting the programme outcomes and further GLA approvals.
The lotProcurement structure
single lot · no lot value publishedLot #1Lot 1Awarded
Procedure terms & legal framework
From the official record- Procedure method
- Direct award
- Legal basis
- UKPGA · 2023/54 Procurement Act 2023
- Notice status
- Awarded without competition
- Procurement threshold
- Unspecified in notice
- Regulatory regime
- Standard
- Commercial structure
- Stand-alone contract (no framework)
- Competition type
- Direct award — no call for competition
- GPA / WTO covered
- Unspecified in notice
- Recurring procurement
- No (one-off requirement)
- First published
- 10 Sept 2026, 12:09 BST
- Last source update
- 10 Sept 2026, 12:09 BST
- Latest notice
- Transparency notice (UK5)
- Delivery area
- Not published
- Official registry OCID
ocds-h6vhtk-06f6b3
- Why no open competition
- Single Suppliers Intellectual Property Exclusive Rights
- Published justification
- This is a compliant call-off from a single supplier framework, in which Mott MacDonald are the only supplier. The framework agreement was signed on the 11th June 2024.
Commercial outcome & contract awards
Published awards, contracts and bid statistics — not a forecast| Awarded to | Value | Date | Status |
|---|---|---|---|
| Mott Macdonald Limited28 Sept 2026 — 28 Sept 2028 · up to 28 Mar 2029Extensions: Option to extend a further 6 months | £5,000,000 | — | Standstill |
Notice history
2 events · 1 release on Find a Tender · since 10 Sept 2026- Contract signature expected21 Sept 2026, 23:59 BSTscheduled
- Transparency notice published10 Sept 2026, 12:09 BSTUK5
Contracting authority & participating public bodies
2 public bodies on the noticeOther public bodies
- Greater London Authority (GLA)Procuring entityCustomerView profile →
Bidders & participating suppliers
1 commercial party on the notice- MOTT MACDONALD LIMITEDAwarded supplierView supplier profile →
Official documents & specifications (2)
Official links; attachments are not copiedTender pack and attachments
- Conflict of interest declarationNot published
Notices published for this procedure
- Transparency notice Transparency notice on Find a Tender