---
title: "S1223 (2025) NIE Networks Dynamic Line Rating"
ocid: "ocds-h6vhtk-04e3c4"
canonical_url: "https://d3tenders.com/contract/?ocid=ocds-h6vhtk-04e3c4"
markdown_url: "https://d3tenders.com/contract/ocds-h6vhtk-04e3c4.md"
json_url: "https://d3tenders.com/contract/ocds-h6vhtk-04e3c4.json"
source: "Find A Tender Service"
current_stage: "Award"
buyer: "NORTHERN IRELAND ELECTRICITY NETWORKS LIMITED"
published: "2025-11-27"
---

# S1223 (2025) NIE Networks Dynamic Line Rating

Buyer: NORTHERN IRELAND ELECTRICITY NETWORKS LIMITED  
Current stage: Award  
OCID: ocds-h6vhtk-04e3c4

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## Summary

Northern Ireland Electricity Networks Limited has initiated a contracting process for the "S1223 (2025) NIE Networks Dynamic Line Rating" project. This procurement, under the industry category of electric sensors, is aimed at developing a remote monitoring and data acquisition system to improve the rating of 110 kV overhead lines in Northern Ireland. The project is classified under the main procurement category of goods. The process employed a "Negotiated procedure with prior call for competition" and was managed selectively. After a tender phase beginning early in 2025, the award was completed with Heimdall chosen as the supplier, with the contract signed on the 27th of October 2025. The contract has been valued at £1,900,000 and involves a framework agreement with potential extensions up to eight years, covering the UK region.

This tender presents growth opportunities for companies specialising in electric sensors and remote monitoring systems, especially those already supplying or planning to supply to the utilities sector in Northern Ireland or similar markets. Firms with experience in developing systems accounting for environmental influences, particularly those with capabilities in handling advanced monitoring of electricity power lines and overhead equipment, stand to benefit from this contract's framework agreement. The procurement methods encourage detailed engagement with bidders, indicating a preference for suppliers who can offer competitive quality and price, evident from the award criteria that consider both aspects significantly (40% quality, 60% price). Companies looking to expand their footprint in public sector utility contracts, specifically within the electric sensor domain, may find this project aligns well with their strategic goals.

## Notice

NIE Networks wishes to appoint a Contractor to develop, supply, deliver to site, site testing and commission a remote monitoring and data acquisition system. The project will support NIE Networks and System Operator Northern Ireland (SONI) in calculating the rating of 110 kV overhead lines (OHLs) in Northern Ireland, taking account of the cooling effects attributable to local weather conditions.

### Lot Information

Lot 1

NIE Networks wishes to appoint a Contractor to develop, supply, deliver to site, site testing and commission a remote monitoring and data acquisition system. The project will support NIE Networks and System Operator Northern Ireland (SONI) in calculating the rating of 110 kV overhead lines (OHLs) in Northern Ireland, taking account of the cooling effects attributable to local weather conditions.

Options: The Contracting Entity intends to establish a Framework Agreement for a period of four (4) years, with the option, (entirely at the discretion of NIE Networks) to extend by up two further periods of two (2) years (eight (8) years in total).

Renewal: The Contracting Entity intends to establish a Framework Agreement for a period of four (4) years, with the option, (entirely at the discretion of NIE Networks) to extend by up two further periods of two (2) years (eight (8) years in total).

## Key Details

| Field | Value |
| --- | --- |
| Publication source | Find A Tender Service |
| Latest notice | https://www.find-tender.service.gov.uk/Notice/077768-2025 |
| Notice type | Tender Notice |
| Procurement type | Framework |
| Procurement category | Goods |
| Procurement method | Selective |
| Procurement method details | Negotiated procedure with prior call for competition |
| Tender suitability | Not specified |
| Awardee scale | SME |
| All stages | Tender, Award |

## Dates

| Field | Value |
| --- | --- |
| Publication date | 27 Nov 2025 |
| Submission deadline | 24 Mar 2025 |
| Future notice date | Not specified |
| Award date | 27 Oct 2025 |
| Contract period | Not specified |
| Recurrence | Not specified |

## Values

| Field | Value |
| --- | --- |
| Tender value | £4,500,000 |
| Lots value | Not specified |
| Awards value | Not specified |
| Contracts value | £1,900,000 |

## Status

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

## Buyer

| Field | Value |
| --- | --- |
| Main buyer | NORTHERN IRELAND ELECTRICITY NETWORKS LIMITED |
| Locality | BELFAST, |
| Post town | Northern Ireland |
| Postcode | BT9 5HT |
| Country | Northern Ireland |
| ITL 1 | Not specified |
| ITL 2 | Not specified |
| ITL 3 | Not specified |
| Local authority | Not specified |
| Electoral ward | Not specified |
| Westminster constituency | Not specified |
| Delivery location | TLN Northern Ireland |

## Supplier

| Field | Value |
| --- | --- |
| Number of suppliers | 1 |
| Supplier names | HEIMDALL |

## CPV Codes

### Divisions

- 30 - Office and computing machinery, equipment and supplies except furniture and software packages
- 31 - Electrical machinery, apparatus, equipment and consumables; lighting

### Codes

- 30237475 - Electric sensors
- 31321000 - Electricity power lines
- 31682400 - Overhead electrical equipment

## Release History

- 27 Nov 2025 at 15:21 - Award - Award Notice - https://www.find-tender.service.gov.uk/Notice/077768-2025
- 19 Feb 2025 at 10:49 - Tender - Tender Notice - https://www.find-tender.service.gov.uk/Notice/005768-2025

## Notice URLs

- http://www.nienetworks.co.uk
- https://e-sourcingni.bravosolution.co.uk

## Provenance

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