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715860474 - Submarine Switchgear and Distribution - UK2

Submarine Delivery Agency

This public procurement record has 2 releases in its history.

Planning

12 Aug 2026 at 15:34

UK2 - Preliminary Market Engagement Notice
Planning

22 May 2026 at 12:11

UK1 - Pipeline Notice
Summary of the contracting process

The Submarine Delivery Agency is planning a requirement for enduring support services for submarine switchgear and electrical distribution equipment across UK submarines. The scope covers all switchboards, load centres and supply cubicles fitted to those submarines, including battery and propulsion equipment. This is primarily the supply of distribution goods with associated support services, covering switchgear, electric switchboards and distribution systems. The requirement concerns equipment used in nuclear-powered strategic and attack submarines, although the published scope does not identify individual submarine locations. Delivery is across the United Kingdom. The procurement is being led by the Submarine Delivery Agency through its Submarine Delivery Group and Platform Equipment Delivery Team, for the UK submarine fleet.

This process is at the planning and preliminary market engagement stage. The buyer is seeking market information to assess suppliers’ capability, shape the future scope and help decide its procurement strategy; it is not yet a formal invitation to tender or request for expressions of interest. The buyer expects to publish the next tender notice on 7 October 2026, subject to change. The request for information is scheduled to close at 23:59 on 2 September 2026. The estimated contract period is 2 August 2027 to 1 August 2032, with renewal possible up to 1 August 2034. The estimated value is £11,727,500 excluding VAT and £14,073,000 including VAT. One planned lot is above threshold and falls under the defence and security regime.

This will suit suppliers able to support complex submarine electrical equipment throughout its service life, particularly firms with expertise in switchboards, load centres, battery supply cubicles, propulsion supply cubicles, switchgear and distribution systems. Relevant businesses may include equipment manufacturers, specialist electrical engineering providers, systems integrators and maintenance or technical support contractors serving defence or other safety-critical environments. The requirement is intended to cover equipment fitted to UK submarines, so suppliers should be prepared to demonstrate capability across a fleet-wide support need rather than a single installation. The planned lot is identified as suitable for small and medium-sized enterprises, which may make it relevant to specialist SMEs and potential delivery partners. Suppliers should use the market engagement stage to explain their technical, operational and commercial ability to meet the future requirement.

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Notice Information

Notice Title

715860474 - Submarine Switchgear and Distribution - UK2

Notice Description

The Submarine Delivery Group (SDG), Platform Equipment Delivery Team (PEDT), has an enduring requirement to provide support for Submarine Switchgear and Distribution equipment services across UK submarines. The Submarine Switchgear contract requirement encompasses all Switchboard, Load Centre and Supply cubicle (i.e. Battery and Propulsion) equipment fitted to UK submarines. Interested parties are to note: * This Preliminary Market Engagement Notice is invite suppliers to take part in market engagement for this potential future requirement and is not a formal request for Expressions of Interest (EOI) nor a commitment to run a procurement exercise. * The publication date of the UK 4 Tender Notice, Contract start date and Contract end date are an estimate and is still subject to change.

Planning Information

The Submarine Delivery Group (SDG), Platform Equipment Delivery Team (PEDT), has an enduring requirement to provide support for Submarine Switchgear and Distribution equipment services across UK submarines. The Submarine Switchgear contract requirement encompasses all Switchboard, Load Centre and Supply cubicle (i.e. Battery and Propulsion) equipment fitted to UK submarines. The Authority seeks to assess the commercial market’s capability to tender solutions that meet this future procurement need. This process will enable the Authority to plan activities effectively and may assist in shaping the future procurement strategy and defining the scope of the requirement. For further details, please refer to the attached Request for Information (RFI) which is included as part of the Opportunity Listing on the Defence Sourcing Portal (DSP). The Authority welcomes responses to the questions outlined in Annex A. Organisations interested in providing information are invited to contact Holly Watson at holly.watson124@mod.gov.uk The RFI closure date is 02/09/2026 2026 at 23:59. This RFI does not represent a contractual commitment of any kind at this time. Any work undergone as a result of this request is done so at your organisations risk. This RFI is not a commitment by the UK Ministry of Defence to place an order or a Tender in the future. Link to DSP notice: https://contracts.mod.uk/esop/guest/go/opportunity/detail?opportunityId=61216

Notice Details

Publication & Lifecycle

Open Contracting ID
ocds-h6vhtk-06a0eb
Publication Source
Find A Tender Service
Latest Notice
https://www.find-tender.service.gov.uk/Notice/076903-2026
Current Stage
Planning
All Stages
Planning

Procurement Classification

Notice Type
UK2 - Preliminary Market Engagement Notice
Procurement Type
Standard
Procurement Category
Goods
Procurement Method
Not Specified
Procurement Method Details
Not specified
Tender Suitability
SME
Awardee Scale
Not specified

Common Procurement Vocabulary (CPV)

CPV Divisions

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

35 - Security, fire-fighting, police and defence equipment

CPV Codes

31213000 - Distribution equipment

31213400 - Distribution system

31214000 - Switchgear

31214500 - Electric switchboards

31214510 - Distribution switchboards

35512000 - Submarines

35512100 - Strategic submarine nuclear fuelled

35512200 - Attack submarine nuclear fuelled

Notice Value(s)

Tender Value
£11,727,500 £10M-£100M
Lots Value
Not specified
Awards Value
Not specified
Contracts Value
Not specified

Notice Dates

Publication Date
12 Aug 20261 months ago
Submission Deadline
Not specified
Future Notice Date
7 Oct 20263 weeks to go
Award Date
Not specified
Contract Period
2 Aug 2027 - 1 Aug 2032 Over 5 years
Recurrence
Not specified

Notice Status

Tender Status
Planned
Lots Status
Planned
Awards Status
Not Specified
Contracts Status
Not Specified

Buyer & Supplier

Contracting Authority (Buyer)

Main Buyer
Submarine Delivery Agency
Contact Name
Available with D3 Tenders Premium →
Contact Email
Available with D3 Tenders Premium →
Contact Phone
Available with D3 Tenders Premium →

Buyer Location

Locality
BRISTOL
Postcode
BS34 8JH
Postcode Area
Bristol
Country
England
Major Region (ITL 1)
TLK South West (England)
Basic Region (ITL 2)
TLK5 West of England
Small Region (ITL 3)
TLK52 Bath & North East Somerset and South Gloucestershire
Delivery Location
Not specified
Local Authority
South Gloucestershire
Electoral Ward
Stoke Park & Cheswick
Westminster Constituency
Filton and Bradley Stoke

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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