---
title: "Project SWAN Development Agreement"
ocid: "ocds-b5fd17-19310ea9-d91e-4038-83b5-d1227b483a86"
canonical_url: "https://d3tenders.com/contract/?ocid=ocds-b5fd17-19310ea9-d91e-4038-83b5-d1227b483a86"
markdown_url: "https://d3tenders.com/contract/ocds-b5fd17-19310ea9-d91e-4038-83b5-d1227b483a86.md"
json_url: "https://d3tenders.com/contract/ocds-b5fd17-19310ea9-d91e-4038-83b5-d1227b483a86.json"
source: "Contracts Finder"
current_stage: "Award"
buyer: "DESNZ"
published: "2026-03-27"
---

# Project SWAN Development Agreement

Buyer: DESNZ  
Current stage: Award  
OCID: ocds-b5fd17-19310ea9-d91e-4038-83b5-d1227b483a86

[View canonical contract page](https://d3tenders.com/contract/?ocid=ocds-b5fd17-19310ea9-d91e-4038-83b5-d1227b483a86)  
[Download OCDS JSON](https://d3tenders.com/contract/ocds-b5fd17-19310ea9-d91e-4038-83b5-d1227b483a86.json)

## Summary

The Department for Energy Security and Net Zero (DESNZ), located in London, is overseeing the procurement process for the 'Project SWAN Development Agreement,' focusing on energy and related services under the CPV code 71314000. This tender pertains to the extension of an existing contract, initially aimed at establishing a large-scale low carbon heat network within Westminster as part of the Advanced Zoning Programme. The contract period, starting on the 6th of September 2024 and ending on the 31st of March 2027, allows delivery to various UK regions, including Channel Islands, Isle of Man, and globally. The procurement method utilized is an open procedure, catering to both small and medium enterprises (SMEs) and voluntary community sector enterprises (VCSEs), with key award status marked 'active' since September 2024.

Business opportunities abound within this tender for enterprises possessing expertise in low carbon energy solutions, as the development of the South Westminster Area Network (SWAN) holds substantial promise for growth in energy services. The procurement invites SMEs and VCSEs to commercialise and deliver advanced heat network services catering to demands exceeding 400 GWh annually. Suppliers like SWAN Heat Network Limited and SWAN ESCO Limited, which have already been awarded contracts, exemplify ideal candidates possessing the requisite resources and know-how. Engaging with this project could provide significant leverage in environmental technology and expand business reach across diverse regions supported by the contract's structure.

## Notice

This is a notice of variation to the existing contract: tender_402787/1402470 https://www.contractsfinder.service.gov.uk/Notice/7dc2d088-eac6-4f31-92c3-c3e6bda48509 Extension of the contract

## Key Details

| Field | Value |
| --- | --- |
| Publication source | Contracts Finder |
| Latest notice | https://www.contractsfinder.service.gov.uk/Notice/cf28d9da-a139-4f48-85c8-23cd76ad0d2e |
| Notice type | Award Notice |
| Procurement type | Standard |
| Procurement category | Services |
| Procurement method | Open |
| Procurement method details | Open procedure (above threshold) |
| Tender suitability | SME, VCSE |
| Awardee scale | SME |
| All stages | Award |

## Dates

| Field | Value |
| --- | --- |
| Publication date | 27 Mar 2026 |
| Submission deadline | 9 Jul 2024 |
| Future notice date | Not specified |
| Award date | 5 Sep 2024 |
| Contract period | 5 Sep 2024 - 31 Mar 2027 |
| Recurrence | Not specified |

## Values

| Field | Value |
| --- | --- |
| Tender value | £100,000 |
| Lots value | Not specified |
| Awards value | £100,000 |
| Contracts value | Not specified |

## Status

| Field | Value |
| --- | --- |
| Tender status | Complete |
| Lots status | Not specified |
| Awards status | Active |
| Contracts status | Not specified |

## Buyer

| Field | Value |
| --- | --- |
| Main buyer | DESNZ |
| Locality | LONDON |
| Post town | 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 | SWAN ESCO; SWAN HEAT NETWORK |

## CPV Codes

### Divisions

- 71 - Architectural, construction, engineering and inspection services

### Codes

- 71314000 - Energy and related services

## Release History

- 27 Mar 2026 at 09:27 - Award - Award Notice - https://www.contractsfinder.service.gov.uk/Notice/cf28d9da-a139-4f48-85c8-23cd76ad0d2e
- 9 Sep 2024 at 10:09 - Award - Award Notice - https://www.contractsfinder.service.gov.uk/Notice/7dc2d088-eac6-4f31-92c3-c3e6bda48509

## Documents

- https://www.contractsfinder.service.gov.uk/Notice/cf28d9da-a139-4f48-85c8-23cd76ad0d2e
  27th March 2026 - Awarded contract notice on Contracts Finder
- https://www.contractsfinder.service.gov.uk/Notice/7dc2d088-eac6-4f31-92c3-c3e6bda48509
  9th September 2024 - Awarded contract notice on Contracts Finder
- https://www.contractsfinder.service.gov.uk/Notice/Attachment/9b30052a-dd7c-4c0e-b2d6-62c70e3a8b18
  n/a

## 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-b5fd17-19310ea9-d91e-4038-83b5-d1227b483a86. The underlying structured data is available as OCDS JSON at https://d3tenders.com/contract/ocds-b5fd17-19310ea9-d91e-4038-83b5-d1227b483a86.json.