---
title: "Supply, Install & Commission of Odorant Injection Systems"
ocid: "ocds-h6vhtk-05f82f"
canonical_url: "https://d3tenders.com/contract/?ocid=ocds-h6vhtk-05f82f"
markdown_url: "https://d3tenders.com/contract/ocds-h6vhtk-05f82f.md"
json_url: "https://d3tenders.com/contract/ocds-h6vhtk-05f82f.json"
source: "Find A Tender Service"
current_stage: "Award"
buyer: "NORTHERN GAS NETWORKS LIMITED"
published: "2025-12-17"
---

# Supply, Install & Commission of Odorant Injection Systems

Buyer: NORTHERN GAS NETWORKS LIMITED  
Current stage: Award  
OCID: ocds-h6vhtk-05f82f

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## Summary

The contracting process concerns Northern Gas Networks Limited's procurement for the supply, installation, and commissioning of odour injection systems across several operational sites in the United Kingdom. The procurement falls under the gas network equipment category, specifically targeting private utility operations to ensure compliance and enhance operational reliability. The tender is in the award stage, effective from 17th December 2025, with delivery scheduled to start on 1st January 2026 and conclude by 31st March 2027, with possible extensions until 2031. Northern Gas Networks Limited, headquartered in Leeds, has made a direct award due to the proprietary nature of the systems provided by YZ Systems Ltd, the sole supplier with intellectual property rights, thereby eliminating alternative competition. The procurement process follows specific legal frameworks and regulations under UK legislation.

This tender presents a strategic opportunity for YZ Systems Ltd, a small to medium-sized enterprise (SME), with exclusive rights to supply proprietary odour injection systems. This procurement can potentially propel growth within the industry by facilitating system upgrades and ensuring regulatory compliance across the gas network in the UK. Other innovative SMEs with a focus on niche technological solutions in the energy sector might find similar opportunities where proprietary solutions are integral to operations. The possibility of contract extensions and additional options related to safety and upgrades provides room for ongoing collaboration and business expansion over the years, reinforcing partnerships in utility services. Businesses with technical expertise in infrastructure compatibility and system integration would be adept at engaging in similar procurements.

## Notice

Supply, install and commissioning of network compatible odorant injection systems This procurement covers the supply, installation, and commissioning of odorant injection systems to support operational reliability and compliance across designated gas sites. The systems are proprietary to the Supplier, requiring a single-source approach to ensure compatibility and maintain existing infrastructure standards. Key Deliverables include: * Delivery of ZEO odorant injection units with bund risers. * Mechanical and electrical installation, including associated materials and pneumatic lines. * Integration of electrical back plates, cabinet lighting, PRU and vent stack. * Full retention of existing NJEX systems Commissioning and Factory Acceptance Testing (FAT) by Supplier. * Hazardous waste disposal in line with environmental requirements. * Supply and installation of 75m injection line and miscellaneous materials. Geography and Scale: Deployment spans multiple operational sites within the UK gas network, ensuring continuity of odorization capability across the region. Purpose: The upgrade will enhance system reliability, maintain regulatory compliance for gas odorization, and support safe network operations. Leveraging Supplier proprietary technology ensures seamless integration with existing assets and minimizes operational risk

### Procurement Information

Under Schedule 5, a direct award is permissible where: * Only a particular supplier can supply the goods, services, or works required due to technical reasons, and * There are no reasonable alternatives or substitutes. For this case: * The odorant injection systems are proprietary to the Supplier, meaning the Supplier holds exclusive rights and technical know-how for these systems. * Integration with existing NJEX infrastructure and compatibility requirements eliminate the possibility of alternative suppliers without incurring disproportionate technical risk or operational disruption. * The scope includes commissioning and FAT by the Supplier, reinforcing that only Supplier can deliver the full requirement to specification. This aligns with the clause in Schedule 5 covering single supplier scenarios due to exclusive rights or technical constraints. Risks of incompatibility and operational failure if another supplier were engaged. The original procurement for initial equipment was competitively tendered for under UCR2016

## Key Details

| Field | Value |
| --- | --- |
| Publication source | Find A Tender Service |
| Latest notice | https://www.find-tender.service.gov.uk/Notice/084016-2025 |
| Notice type | UK6 - Contract Award Notice |
| Procurement type | Framework |
| Procurement category | Goods |
| Procurement method | Direct |
| Procurement method details | Direct award |
| Tender suitability | SME |
| Awardee scale | SME |
| All stages | Award |

## Dates

| Field | Value |
| --- | --- |
| Publication date | 17 Dec 2025 |
| Submission deadline | Not specified |
| Future notice date | Not specified |
| Award date | 17 Dec 2025 |
| Contract period | 1 Jan 2026 - 31 Mar 2027 |
| Recurrence | Not specified |

## Values

| Field | Value |
| --- | --- |
| Tender value | Not specified |
| Lots value | Not specified |
| Awards value | £3,500,000 |
| Contracts value | Not specified |

## Status

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

## Buyer

| Field | Value |
| --- | --- |
| Main buyer | NORTHERN GAS NETWORKS LIMITED |
| Locality | COLTON LEEDS |
| Post town | Leeds |
| Postcode | LS15 8TU |
| Country | England |
| ITL 1 | TLE Yorkshire and The Humber |
| ITL 2 | TLE4 West Yorkshire |
| ITL 3 | TLE42 Leeds |
| Local authority | Leeds |
| Electoral ward | Garforth & Swillington |
| Westminster constituency | Leeds East |
| Delivery location | Not specified |

## Supplier

| Field | Value |
| --- | --- |
| Number of suppliers | 1 |
| Supplier names | YZ SYSTEMS |

## CPV Codes

### Divisions

- 39 - Furniture (incl. office furniture), furnishings, domestic appliances (excl. lighting) and cleaning products

### Codes

- 39340000 - Gas network equipment

## Release History

- 17 Dec 2025 at 16:10 - Award - UK6 - Contract Award Notice - https://www.find-tender.service.gov.uk/Notice/084016-2025
- 17 Dec 2025 at 15:53 - Award - UK5 - Transparency Notice - https://www.find-tender.service.gov.uk/Notice/083992-2025

## Documents

- https://www.find-tender.service.gov.uk/Notice/084016-2025
  17th December 2025 - Contract award notice on Find a Tender
- https://www.find-tender.service.gov.uk/Notice/083992-2025
  17th December 2025 - Transparency notice on Find a Tender

## Notice URLs

- http://www.yzsystems.com
- https://www.legislation.gov.uk/ukpga/2023/54/contents

## 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-05f82f. The underlying structured data is available as OCDS JSON at https://d3tenders.com/contract/ocds-h6vhtk-05f82f.json.