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Extra High Voltage (EHV) switchgear, transformers and electrical protection inspection and Maintenance

Repair and maintenance services of electrical distribution equipment
UK
Published value
Not published
Submission deadline Not published
Lots published1
Procurement Executive Summary
AI & Search Synopsis
Generated from official OCDS record
Tenderline Synopsis: Nuclear Restoration Services Limited: "Extra High Voltage (EHV) switchgear, transformers and electrical protection inspection and Maintenance". Published status: complete. Published value: Value not published. 1 published lot. Submission deadline not published. See the official notice for participation instructions.
Contracting AuthorityNuclear Restoration Services LimitedScope & CategoriesNot publishedSubmission Window
complete
No deadline published
Submission GatewayDirect notice routeLegal Basis & RegimeStandard procurementEstimated Value (exc. VAT)Not published
Bidder Intelligence · Authority Profile: Nuclear Restoration Services Limited
Market Analytics
View Authority Profile →
Derived from OCDS awards & bid statistics
Published history for Nuclear Restoration Services Limited. These figures describe retained records, not a forecast of bids or a measure of buyer bias.
Published-to-award variance
Not availableInsufficient comparable data
Requires at least 5 comparable procedures
Competition Density
2.4Bids / Report
51.6% of reports have one bid
Supplier ConcentrationNo estimate
Insufficient attributable awardsNo concentration estimate available
Payment Terms
Check noticePublished terms
Payment obligations depend on the applicable regime and contract. Consult the official documents.
Coverage: 40 active published awards; 31 bid reports (which may be per lot). Supplier values exclude multi-supplier awards, frameworks and DPS, and use GBP only. They are published award values, not payments. Published-to-award variance compares single-lot, single-award, single-supplier GBP procedures with explicitly non-framework/non-DPS status; increases remain in the average. Unpublished data stays unknown. Awarded suppliers are winners, not all bidders.
Procedure terms
Contracting AuthorityNuclear Restoration Services Limited
Procedure methodNot published
Procurement categoryNot published
Statuscomplete
Framework / DPSNot published
CompetitionNot published
Above thresholdNot published
Legal basisNot published
Tender period startsNot published
Clarification deadlineNot published
Electronic submissionNot published
Submission languagesNot published
Published12 Feb 2025, 16:45 GMT
Last source update12 Feb 2025, 16:45 GMT
Recurring procurementNot published
ClassificationRepair and maintenance services of electrical distribution equipment
Delivery area
UK
OCIDocds-h6vhtk-037ce4
What is being bought
The provision of emergency call-out services, routine inspection and maintenance of Obsolete and aged (50+ years) Extra High Voltage (EHV) switchgear, transformers and electrical protection only (and not replacement of the same) at Dungeness A, Maentwrog, Trawsfynydd, Wylfa and potentially Hinkley point B.
What changed
From the official release history
  1. tender value changed
    12 Feb 2025, 16:45 GMT
  2. Status changed to complete
    12 Feb 2025, 16:45 GMT
  3. Official notice release published
    12 Feb 2025, 16:45 GMT
  4. Buyer information updated
    12 Feb 2025, 16:45 GMT
  5. Published value updated to £2,000,000
    27 Oct 2022, 15:49 BST
  6. Status changed to planned
    27 Oct 2022, 15:49 BST
  7. Official notice release published
    27 Oct 2022, 15:49 BST
  8. Buyer information updated
    27 Oct 2022, 15:49 BST
Lots and requirements (1)
Published by the contracting authority
  • Lot 1 · #1
    Individual lot title not published
    Status not published
    Published valueNot published
    The provision of emergency call-out services, routine inspection and maintenance of Obsolete and aged (50+ years) Extra High Voltage (EHV) switchgear, transformers and electrical protection only at Dungeness A, Maentwrog, Trawsfynydd, Wylfa and potentially Hinkley point B.<br/><br/>The expertise and experience requirements for each site are as follows:<br/><br/>Dungeness A, Trawsfynydd & Wylfa<br/><br/>Maintenance of 275 kV and 132 kV Air Blast Circuit Breakers including ability to source, refurbish, remanufacture or replace existing components / equipment. A particular requirement is knowledge and experience of 275 kV Reyrolle OBR60 Air Blast Circuit Breakers.<br/>Maintenance of 275 kV / 11 kV and 132 kV / 11 kV oil filled transformers with in-tank or externally mounted on-load tap-changers.<br/><br/>Maintenance and testing of transformer differential protection systems.<br/><br/>Working under NGET Safety Rules.<br/><br/>Note: The equipment at Wylfa is planned to be decommissioned in 2026 so minimal work is expected to be carried out at Wylfa beyond March 2026.<br/><br/>Due to the agedness and obsolescence of the equipment NRS are currently exploring options to enable the decommissioning of equipment at Trawsfynydd & Wylfa in favour of moving to Distribution Network Operators (DNO’s) during the life of the proposed contract (full replacement of existing and commissioning of new equipment is not a requirement that will be covered by this contract).<br/><br/>Maentwrog<br/><br/>Maintenance of 33 kV SF6 insulated switchgear.<br/>Maintenance of 33 kV / 11 kV generator transformers.<br/>Maintenance and testing of transformer differential protection systems and generator protection systems.<br/><br/>Working under Scottish Power MANWEB Safety Rules.<br/><br/>Hinkley point B<br/><br/>During the life of this contract the responsibility for managing and decommissioning Hinkley point B power station will pass from EDF to NRS and it is possible that similar services may be required at these locations.<br/><br/>However, it is not currently known what arrangements are in place or if existing contractual arrangements will extend beyond the handover dates and therefore require novating to NRS.
    Contract periodNot published
    EligibilityNot published
    Options / renewalNot published
Timeline
  1. Procedure published
    12 Feb 2025, 16:45 GMT
  2. Award active
    Not published · Not published
  3. Contract active
    Signed 11 Feb 2025, 00:00 GMT · Not published
Commercial outcome and competition
Awards
National Grid Electricity Transmission
Not published · Not published · active
Contracts
Contract
Not published · signed 11 Feb 2025, 00:00 GMT · active
Bid statisticsNo aggregate bid statistics published
Buyer and organisations in this procedure

Nuclear Restoration Services Limited

Contracting authority GB-FTS-109710
View buyer profile

  • Nuclear Restoration Services Limited
    buyer

    02264251
    Hinton House, Birchwood Park Avenue, Risley, Warrington, UK, WA3 6GR
    andew.dobson@nrservices.uk

  • London Court of International Arbitration
    mediationBody
    reviewBody

    1 Paternoster Lane, London, EC4M 7BQ

  • National Grid Electricity Transmission
    supplier

    2366977
    1-3 Strand, London, UK, WC2N 5EH

  • Nuclear Restoration Services Limited
    reviewContactPoint

    Hinton House, Birchwood Park Avenue, Risley, Warrington, WA3 6GR
    magnox.supplier.queries@magnoxsites.com
Documents (0)
Official links; attachments are not copied
No data
No linked documents are published
Related procedures (0)
No data
No related procedures published
Planning and rationale
Planning budgetNot published
No-engagement rationaleNot published
Procedure rationaleNRS consider competition is absent for technical reasons as no reasonable alternative or substitute exists for the following reasons:<br/><br/>The equipment is aged (circa 50-60 years old) and National Grid Electricity Generation (NGET) hold a significant amount of experience and knowledge through their dedicated in-house historic asset specialists with regards to maintenance of the equipment which also includes inspection and maintenance logs. <br/><br/>NRS consider that this knowledge and capability built up over many years maintaining this equipment is invaluable to the safe and effective maintenance and execution of the work and that it is unlikely that another provider would possess or be able to acquire the level of expertise required to maintain the type and age of the equipment mentioned. <br/><br/>NRS also do not consider it is possible that another supplier would embark on an extensive training program for a requirement of this size, frequency, age or duration (noting that NRS are also exploring options to decommission the equipment and further reduce the level of work required).<br/><br/>NGET are also authors and owners of the current inspection and maintenance regimes which were based on the Original Equipment Manufacturers (OEM) specifications written circa 50-60 years ago. However, over the years NGET have amended these to reflect the operational learning based on experience and development of best practice routines during execution of the work. NRS do not hold copies of these regimes and they will not be made available to a new supplier by NGET therefore any new supplier will need to develop a new regime based on the OEM specification. <br/><br/>NRS copies of the OEM specifications are incomplete with many OEM’s either no longer trading or having been taken over so it may not be possible to obtain new copies. Any new inspection and maintenance regime would require NRS approval, however NRS feel there is limited inhouse knowledge on this equipment to do this.<br/><br/>NGET hold, have access to, and have the expertise to refurbish critical obsolete spares which NRS believe other economic operators would find difficult and cost prohibitive to replicate.<br/><br/>The equipment is housed at locations where NRS are not the leaseholder, and any other commercial operators will need to engage with NGET and Scottish Power MANWEB to gain access to Sub-stations and then require full supervision during visits for emergency call-out services, routine inspection and maintenance. NRS have been informed that any work would need to be carried out under NGET and Scottish Power MANWEB Safety Rules respectively which will lead to additional third-party cost, delays and significant sub-station access/escorting issues with regards to coordination of the additional contractors engaged in delivering the work.