---
title: "Waste Packaging & Encapsulation Plant Distributed Control System"
ocid: "ocds-h6vhtk-04df1b"
canonical_url: "https://d3tenders.com/contract/?ocid=ocds-h6vhtk-04df1b"
markdown_url: "https://d3tenders.com/contract/ocds-h6vhtk-04df1b.md"
json_url: "https://d3tenders.com/contract/ocds-h6vhtk-04df1b.json"
source: "Find A Tender Service"
current_stage: "Award"
buyer: "SELLAFIELD LIMITED"
published: "2026-03-06"
---

# Waste Packaging & Encapsulation Plant Distributed Control System

Buyer: SELLAFIELD LIMITED  
Current stage: Award  
OCID: ocds-h6vhtk-04df1b

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## Summary

Sellafield Limited is engaged in a procurement process to design and build a Distributed Control System (DCS) for its Waste Packaging & Encapsulation Plant, located at the Sellafield site. This tender falls under the 'goods' category within the computer control systems industry and utilises an open procedure. The procurement, identified by the title "Waste Packaging & Encapsulation Plant Distributed Control System," caters to encapsulation processes at the plant and aims to replace existing systems with state-of-the-art technology. The process includes critical activities such as hardware and software design, assembly, testing, and delivery, ensuring adherence to relevant standards. The contract for these services was awarded to ACTEMIUM UK LTD, signed on 19th February 2026, with a contract value of £5,900,000, following the tender process which concluded on 25th April 2025.

This tender presents a significant opportunity for businesses specialising in computer control and distributed systems to expand their portfolio within the nuclear decommissioning sector. It invites skilled companies capable of designing and implementing complex control systems in compliance with rigorous industry standards. Firms offering advanced technological solutions in process management would find this project particularly beneficial, providing an avenue to demonstrate proficiency and secure long-term collaborations with prominent entities such as Sellafield Limited. The single-lot structure of the procurement allows the supplier to comprehensively manage the project from end-to-end, underscoring the potential for efficiency and innovation in meeting industry-specific challenges.

## Notice

Design and build of a Distributed Control System for the Waste Packaging & Encapsulation Plant.

### Lot Information

Lot 1

The Waste Packaging and Encapsulation Plant (WPEP) is a two-line process plant designed for encapsulating Flocculant (FLOC) arisings from the Enhanced Actinide Removal Plant (EARP) process, waste from the Segregated Effluent Treatment Plant (SETP) and the Effluent Plant Maintenance Facility (EPMF). The waste is encapsulated in stainless steel drums within a cement mix. Filled drums are lidded, and then monitored before being stored, initially in the WPEP Store, before being exported for longer term storage in the Encapsulated Product Stores.

The WPEP Distributed Control System (DCS) project replaces the existing system with a replacement control system based on modern technologies, whilst applying relevant Sellafield standards, guides and procedures.

The project will:

* Replace the existing DCS hardware, system software and configuration with a modern control system ensuring that the plant continues to function in the same manner.
* Incorporate the currently independent Drum Decontamination and Powders PLC functionality to the replacement WPEP control system.

The scope of activities are to include (but not be limited to):

a) Familiarisation with the existing control system to aid understanding.
b) The production of detailed hardware and software designs, consistent with the relevant clauses specified in the standards and capable of satisfying the requirements specified in the User Requirement Specification (URS).
c) Carrying out the manufacture and assembly of all items of hardware, consistent with the relevant clauses specified in the standards and capable of satisfying the requirements specified in the URS.
d) Implementing structured software, consistent with the functional requirements documentation.
e) Production and delivery of all supporting design documents, consistent with the relevant clauses specified in the standards and as listed in the URS.
f) Preparation and submission of Technical Queries (TQs).
g) Carrying out the detailed design and build of a simulation model, including the production of all supporting design documentation.
h) Carrying out testing in accordance with the relevant clauses specified in the standards and as described in the URS.
i) Carrying out training in accordance with the relevant clauses specified in the standards and as described in the URS.
j) Delivery of the system to the location specified in the contract documentation.
k) Provision of support during Setting to Work and Commissioning in accordance with the URS.

Sellafield Ltd has appointed one (1) supplier to deliver the design and build of the DCS for the WPEP facility. Additional information: The procurement was designed as a single lot covering the design, build, test, and delivery. Due to the nature of the requirement, keeping the scope as one single lot allows the appointed supplier to efficiently manage the full end-to-end scope of the project.

## Key Details

| Field | Value |
| --- | --- |
| Publication source | Find A Tender Service |
| Latest notice | https://www.find-tender.service.gov.uk/Notice/020581-2026 |
| Notice type | Tender Notice |
| Procurement type | Standard |
| Procurement category | Goods |
| Procurement method | Open |
| Procurement method details | Open procedure |
| Tender suitability | Not specified |
| Awardee scale | Large |
| All stages | Tender, Award |

## Dates

| Field | Value |
| --- | --- |
| Publication date | 6 Mar 2026 |
| Submission deadline | 25 Apr 2025 |
| Future notice date | Not specified |
| Award date | 19 Feb 2026 |
| Contract period | Not specified |
| Recurrence | Not specified |

## Values

| Field | Value |
| --- | --- |
| Tender value | £7,600,000 |
| Lots value | £7,600,000 |
| Awards value | Not specified |
| Contracts value | £5,900,000 |

## Status

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

## Buyer

| Field | Value |
| --- | --- |
| Main buyer | SELLAFIELD LIMITED |
| Additional buyers | SELLAFIELD LTD |
| Locality | WARRINGTON |
| Post town | Warrington |
| Postcode | WA3 6GR |
| Country | England |
| ITL 1 | TLD North West (England) |
| ITL 2 | TLD6 Cheshire |
| ITL 3 | TLD61 Warrington |
| Local authority | Warrington |
| Electoral ward | Birchwood |
| Westminster constituency | Warrington North |
| Delivery location | TLD11 West Cumbria |

## Supplier

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

## CPV Codes

### Divisions

- 32 - Radio, television, communication, telecommunication and related equipment
- 35 - Security, fire-fighting, police and defence equipment
- 42 - Industrial machinery
- 48 - Software package and information systems

### Codes

- 32573000 - Communications control system
- 35710000 - Command, control, communication and computer systems
- 35711000 - Command, control, communication systems
- 35712000 - Tactical command, control and communication systems
- 42961000 - Command and control system
- 48151000 - Computer control system

## Release History

- 6 Mar 2026 at 16:07 - Award - Award Notice - https://www.find-tender.service.gov.uk/Notice/020581-2026
- 14 Feb 2025 at 11:22 - Tender - Tender Notice - https://www.find-tender.service.gov.uk/Notice/005096-2025

## Notice URLs

- http://WWW.ACTEMIUM.CO.UK
- https://atamis-2464.my.site.com/s/Welcome
- https://www.find-court-tribunal.service.gov.uk/courts/royal-courts-of-justice
- https://www.gov.uk/government/organisations/sellafield-ltd

## 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-04df1b. The underlying structured data is available as OCDS JSON at https://d3tenders.com/contract/ocds-h6vhtk-04df1b.json.