PERMANENT AWARD EVIDENCE

Instrumentation and Monitoring

Sizewell C Limited · published 29 Apr 2026. This page preserves the identifiers and current held fields for one Contracts Finder release; it is not an invoice, performance assessment or complete contract history.

Contracts Finder release ID17bb5818-d6ec-4a70-96f9-1dab83a6538d-895336
Open Contracting ID (OCID)ocds-b5fd17-c1f0f7c9-3cd4-4454-be08-20030aa4fa1b
Buyer identifierGB-CFS-262881
Release typetender
PUBLISHED COMMERCIAL FIELDS

Values stay separate.

A tender estimate and an award value answer different questions. Neither is treated as cash paid.

Award value
Not disclosed
award field
Tender value
£40,000,000
tender field
Procurement method
Not stated
Category
works
CPV
31682210
Instrumentation and control equipment
Delivery
British Oversea Territories
No postcode
PUBLISHED DESCRIPTION

What the notice says

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

Tender statusactive
STAGE-DATE LEDGER

Reported dates, without an invented lifecycle.

The current projection contains one award release, not a verified chain of planning, tender, award, contract and modification records. Dates are shown in source-field order and are not silently repaired.

  1. 01Notice publishedPublication timestamp on the held release29 Apr 2026
  2. 02Tender period endsTender-period field as published8 May 2026
SUPPLIER EVIDENCE

Published names and exact identifiers

A company profile appears only when this release carries a usable company number. Name-only suppliers remain name-only.

No supplier is named in this projection. That does not prove the notice had no supplier in every source version.

SOURCE

Contracts Finder release

Published 29 Apr 2026 · held through the daily award projection · Open Government Licence v3.0.

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