Source: https://tendernation.io/opportunities/01a13d21-9f65-701d-a105-dd2b7cd1d11f/instrumentation-and-monitoring closed GB open procedure # Instrumentation and Monitoring [Sizewell C Limited](https://tendernation.io/buyers/sizewell-c-limited) Estimated value £30,000,000 to £40,000,000 Published 29 Apr 2026 Deadline Closed 8 May 2026 ## Who can bid - Open procedure Anyone can submit a full tender; there is no shortlisting stage. ## About this tender 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 Read full description ## CPV classification Instrumentation and control equipment Source Contracts Finder (UK) [View official notice](https://www.contractsfinder.service.gov.uk/notice/c1f0f7c9-3cd4-4454-be08-20030aa4fa1b) Never miss a tender like this again Get AI summaries, deadline alerts and a bid pipeline for tenders matched to your business. Free to start. [Track tenders free](https://tendernation.io/register) [Buyer profile Sizewell C Limited: past awards and live tenders](https://tendernation.io/buyers/sizewell-c-limited) [Sector More Electrical equipment & lighting tenders](https://tendernation.io/sectors/electrical-equipment-lighting) ## More tenders like this [Fire-detection systems – Διακήρυξη Δημόσιου Ηλεκτρονικού Ανοικτού Διαγωνισμού άνω των ορίων για την Προμήθεια και Εγκατάσταση Καμερών Πεδίου, Αισθητήρων για την Ανάπτυξη Δικτύου, Οχημάτων και Υποστηρικτικού Εξοπλισμού ΤΠΕ στα πλαίσια του Έργου OFIDIAPlus (MIS 6005141) του Προγράμματος «(Interreg VI-A) Greece-Italy» (WP3/3.1,3.2,3.3) · ΕΠΙΘΕΩΡΗΣΗ ΕΦΑΡΜΟΓΗΣ ΔΑΣΙΚΗΣ ΠΟΛΙΤΙΚΗΣ ΗΠΕΙΡΟΥ-ΔΥΤ. ΜΑΚΕΔΟΝΙΑΣ · 2 days left · 21 Oct 2026](https://tendernation.io/opportunities/01a15183-1ddf-734c-a652-6a2cbdc61835/greece-fire-detection-systems-diakiriksi-dimosioy-hlektronikou-anoiktou-diagho) [Generator units – Lieferung und Montage von 18 Stück Notstromaggegaten · Landesstraßenbaubehörde Sachsen-Anhalt Zentrale · 36 days left · 24 Nov 2026](https://tendernation.io/opportunities/01a15183-0903-71ba-9bbb-969371dd6cb5/germany-generator-units-lieferung-und-montage-von-18-stuck-notstromaggegaten) [Voltage transformers – Modernizacja populacji transformatorów – etap IX (Dofinansowane) · Polskie Sieci Elektroenergetyczne Spółka Akcyjna · 109 days left · 5 Feb 2027](https://tendernation.io/opportunities/01a15183-0fe8-707b-91e3-4ab24dca5091/poland-voltage-transformers-modernizacja-populacji-transformatorow-etap-ix) [Electric tubes – Energetische Sanierung der Straßenbeleuchtung im Stadtgebiet Langenfeld im 3. Bauabschnitt · Stadtwerke Langenfeld GmbH · 4 days left · 23 Oct 2026](https://tendernation.io/opportunities/01a15183-2933-706f-b8b4-1e2c178a4cb4/germany-electric-tubes-energetische-sanierung-der-strassenbeleuchtung-im-stad) [Magnets – Herstellung und Lieferung von Undulatorgestellen für FLASH Radiatoren · Deutsches Elektronen-Synchrotron DESY · 32 days left · 20 Nov 2026](https://tendernation.io/opportunities/01a15183-737c-703a-b975-9f6a72bf86b4/germany-magnets-herstellung-und-lieferung-von-undulatorgestellen-fur-flash-r) [Electromechanical equipment – Δ8418 · ΕΤΑΙΡΙΑ ΥΔΡΕΥΣΕΩΣ ΚΑΙ ΑΠΟΧΕΤΕΥΣΕΩΣ ΠΡΩΤΕΥΟΥΣΗΣ Α.Ε. (Ε.ΥΔ.Α.Π. Α.Ε.) · 7 days left · 26 Oct 2026](https://tendernation.io/opportunities/01a15183-28ae-70a7-b9d5-768ab8983d2d/greece-electromechanical-equipment-d8418)