Tender

Instrumentation and Monitoring

SIZEWELL C LIMITED

This public procurement record has 1 release in its history.

Tender

29 Apr 2026 at 08:20

Tender Notice
Summary of the contracting process

Sizewell C Limited is conducting a tender process titled "Instrumentation and Monitoring" within the "works" procurement category, seeking suppliers for the supply, installation, and commissioning of monitoring instrumentation systems for the Sizewell B and C nuclear sites. The tender covers various aspects, including ground and ground-water systems, data acquisition and telemetry, and compliance with industry standards. Noteworthy dates include the tender period ending on 8 May 2026 and the contract expected to start on 28 August 2026, running until 2036. This opportunity is focused on the UK's diverse locations, including the British Overseas Territories, Channel Islands, and the United Kingdom.

This tender presents an excellent opportunity for businesses specialising in instrumentation and control equipment, as well as those experienced in environmental monitoring for construction projects. Companies with expertise in battery or solar-powered technologies, joint ventures, or alliances can also find strategic growth opportunities here. Sizewell C Limited expects suppliers to maintain high standards in technical delivery and maintenance, making it suitable for established businesses capable of offering innovative monitoring solutions. Small to medium enterprises (SMEs) and voluntary community service enterprises (VCSEs) might find challenges in competing due to the project scale and requirements.

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Notice Information

Notice Title

Instrumentation and Monitoring

Notice Description

The scope of works for this package includes: * Supply, installation, and commissioning of ground and ground-water monitoring instrumentation systems * Data acquisition and telemetry for transmission to a Client owned database and visualisation platform (This package of work does not include provision of the database) * All instrumentation is expected to be battery or solar powered * Compliance with relevant industry standards and regulatory requirements * Joint Ventures/Alliances will be considered Packages of work area as follows: InSAR Satellite * Provision of historical data to cover the area of Sizewell B and Sizewell C. * Provision of multi-directional coverage and analysis of the Sizewell B and Sizewell C area until 2036 (period maybe extended). Unit 1 and 2 Plastic Wall Monitoring * Commence September 2026, end June 2027 * Drilling of approx. 200nr installation boreholes to a depth of 55m below ground level * Installation of IPI, IPIX, VWP and GNSS positional location monitoring Unit 1 and 2 Retaining Walls * Commence September 2026, end January 2028. * Installation in void formers at 200nr locations * Installation of IPI, IPIX, strain gauges and GNSS positional location monitoring Shafts and Tunnels * Commence May 2027, end December 2027. * Installation in void formers at 50nr locations * Installation of IPI, IPIX, strain gauges and GNSS positional location monitoring Backfill Specification * Commence September 2027, end January 2029. * Installation under main nuclear islands * Installation of horizontal Inclinometers/SAA, hydraulic settlement cells and extensometers Provision of Maintenance Team * Commence September 2026, end December 2036 (maybe extended. * Provision of maintenance services to ensure operation of installed instrumentation, maintaining solar and battery powered equipment. * Undertaking manual monitoring where necessary Additional information: It will be beneficial for you to describe your business as mush as possible and highlight where you can help us to achieve our values described above

Notice Details

Publication & Lifecycle

Open Contracting ID
ocds-b5fd17-c1f0f7c9-3cd4-4454-be08-20030aa4fa1b
Publication Source
Contracts Finder
Latest Notice
https://www.contractsfinder.service.gov.uk/Notice/17bb5818-d6ec-4a70-96f9-1dab83a6538d
Current Stage
Tender
All Stages
Tender

Procurement Classification

Notice Type
Tender Notice
Procurement Type
Standard
Procurement Category
Works
Procurement Method
Not Specified
Procurement Method Details
Tender Suitability
Not specified
Awardee Scale
Not specified

Common Procurement Vocabulary (CPV)

CPV Divisions

31 - Electrical machinery, apparatus, equipment and consumables; lighting

71 - Architectural, construction, engineering and inspection services

CPV Codes

31682210 - Instrumentation and control equipment

71313450 - Environmental monitoring for construction

71700000 - Monitoring and control services

Notice Value(s)

Tender Value
£40,000,000 £10M-£100M
Lots Value
Not specified
Awards Value
Not specified
Contracts Value
Not specified

Notice Dates

Publication Date
29 Apr 20264 days ago
Submission Deadline
8 May 20265 days to go
Future Notice Date
Not specified
Award Date
Not specified
Contract Period
27 Aug 2026 - 19 Dec 2036 Over 5 years
Recurrence
Not specified

Notice Status

Tender Status
Active
Lots Status
Not Specified
Awards Status
Not Specified
Contracts Status
Not Specified

Buyer & Supplier

Contracting Authority (Buyer)

Main Buyer
SIZEWELL C LIMITED
Contact Name
Available with D3 Tenders Premium →
Contact Email
Available with D3 Tenders Premium →
Contact Phone
Available with D3 Tenders Premium →

Buyer Location

Locality
LONDON
Postcode
W1T 4EZ
Post Town
West London
Country
England
Major Region (ITL 1)
TLI London
Basic Region (ITL 2)
TLI3 Inner London - West
Small Region (ITL 3)
TLI36 Camden
Delivery Location
Not specified
Local Authority
Camden
Electoral Ward
Bloomsbury
Westminster Constituency
Holborn and St Pancras

Further Information

Notice Documents

Open Contracting Data Standard (OCDS)

View full OCDS Record for this contracting process

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The Open Contracting Data Standard (OCDS) is a framework designed to increase transparency and access to public procurement data in the public sector. It is widely used by governments and organisations worldwide to report on procurement processes and contracts. 

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