---
title: "Decarbonisation Additive"
ocid: "ocds-h6vhtk-049daf"
canonical_url: "https://d3tenders.com/contract/?ocid=ocds-h6vhtk-049daf"
markdown_url: "https://d3tenders.com/contract/ocds-h6vhtk-049daf.md"
json_url: "https://d3tenders.com/contract/ocds-h6vhtk-049daf.json"
source: "Find A Tender Service"
current_stage: "Award"
buyer: "FIRST GREATER WESTERN LIMITED"
published: "2025-06-02"
---

# Decarbonisation Additive

Buyer: FIRST GREATER WESTERN LIMITED  
Current stage: Award  
OCID: ocds-h6vhtk-049daf

[View canonical contract page](https://d3tenders.com/contract/?ocid=ocds-h6vhtk-049daf)  
[Download OCDS JSON](https://d3tenders.com/contract/ocds-h6vhtk-049daf.json)

## Summary

The procurement process initiated by First Greater Western Limited focuses on providing a decarbonisation additive for diesel trains, classified under the railway transport services category. The process relates to railway services in the UK, specifically in the South West region (UKK). This open procedure procurement progressed to the award stage, with a contract signed on 16th May 2025. The procurement aimed to reduce emissions in the GWR diesel fleet, and the initial tender, titled "Decarbonisation Additive," underwent various updates and amendments before reaching completion. Notably, the notable contract period is 1,080 days, emphasising long-term commitments to enhancing the GWR network's sustainability.

This tender presents substantial opportunities for businesses involved in the supply of chemical additives and infrastructure installation to support diesel fleet enhancements. Companies specialising in petroleum, coal, and oil products, as well as those capable of integrating monitoring equipment and infrastructure at multiple engineering depots, would be well-suited to compete in this procurement. The expansive nature of the project across multiple sites from Penzance to Reading further amplifies the business growth potential for suppliers within the regional transport services industry. Moreover, adherence to electronic submission and invoicing policies indicates a modern procurement process, favourable to technologically adept firms wanting to expand their footprint in public sector contracts.

## Notice

Decarbonisation additive for diesel trains

### Lot Information

Lot 1

Tender for decarbonisation additive to reduce emissions from GWR diesel fleet

Options: Ability to extend for 2 years

## Key Details

| Field | Value |
| --- | --- |
| Publication source | Find A Tender Service |
| Latest notice | https://www.find-tender.service.gov.uk/Notice/029318-2025 |
| Notice type | Tender Notice |
| Procurement type | Standard |
| Procurement category | Services |
| Procurement method | Open |
| Procurement method details | Open procedure |
| Tender suitability | Not specified |
| Awardee scale | Not specified |
| All stages | Tender, Award |

## Dates

| Field | Value |
| --- | --- |
| Publication date | 2 Jun 2025 |
| Submission deadline | 30 Sep 2024 |
| Future notice date | Not specified |
| Award date | 15 May 2025 |
| Contract period | Not specified |
| Recurrence | Not specified |

## Values

| Field | Value |
| --- | --- |
| Tender value | £1,500,000 |
| Lots value | £1,500,000 |
| Awards value | Not specified |
| Contracts value | Not specified |

## Status

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

## Buyer

| Field | Value |
| --- | --- |
| Main buyer | FIRST GREATER WESTERN LIMITED |
| Locality | SWINDON |
| Post town | Swindon |
| Postcode | 1 |
| Country | England |
| ITL 1 | TLK South West (England) |
| ITL 2 | TLK7 Gloucestershire and Wiltshire |
| ITL 3 | TLK71 Swindon |
| Local authority | Swindon |
| Electoral ward | Central |
| Westminster constituency | Swindon South |
| Delivery location | TLK South West (England), TLK1 Gloucestershire, Wiltshire and Bristol/Bath area, TLK2 Dorset and Somerset, TLK3 Cornwall and Isles of Scilly, TLK4 Devon |

## CPV Codes

### Divisions

- 24 - Chemical products
- 60 - Transport services (excl. Waste transport)

### Codes

- 24957000 - Chemical additives
- 60200000 - Railway transport services

## Release History

- 2 Jun 2025 at 16:32 - Award - Award Notice - https://www.find-tender.service.gov.uk/Notice/029318-2025
- 26 Sep 2024 at 13:47 - TenderUpdate - Tender Notice - https://www.find-tender.service.gov.uk/Notice/030825-2024
- 26 Sep 2024 at 13:31 - TenderUpdate - Tender Notice - https://www.find-tender.service.gov.uk/Notice/030820-2024
- 25 Sep 2024 at 14:22 - Tender - Tender Notice - https://www.find-tender.service.gov.uk/Notice/030634-2024

## Notice URLs

- http://WWW.GWR.com
- http://redirect.transaxions.com/events/5aToS
- http://redirect.transaxions.com/events/hDoeI
- https://procurement.gwr.com

## 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-049daf. The underlying structured data is available as OCDS JSON at https://d3tenders.com/contract/ocds-h6vhtk-049daf.json.