System operational · UK tenders
Open
ocds-h6vhtk-078687 · tender

1073434028 T1427 Strategy for Harmonising Automatic Current Limitation Across Electric Rolling Stock in GB

Rail Safety Standards Board (RSSB)

Estimated Value

Up to £180,000

Deadline

16 November 2026

34 days remaining

Published

13 October 2026

Type

Not specified

LondonGBopen

Overview

This research seeks to develop the evidence base required to inform the transition towards harmonised ACL characteristics across rolling stock operating on the GB network. It will confirm and refine the previously proposed target state for ACL harmonisation (that is BS EN 50388-1:2022 without UKSNC (Umin2 = 17.5 kV)), fully accounting for technical feasibility and economic viability, and develop a detailed pathway from current to target state for existing and future rolling stock.

Specifically, the research will address the following objectives: 1.Confirm and detail the target state for ACL harmonisation and the rationale for its adoption: this includes accounting for wider system consequences and trade-offs, quantified associated benefits, costs and risks. 2.Define a transition pathway from current to target state: this includes specifying the ACL changes that are technically achievable and economically justified for existing rolling stock, the ACL requirements for future rolling stock, the role and deployment of dual trains, and the phasing required to reach the target state. For more information about this opportunity, please visit the eSourcing portal at: https://www.delta-esourcing.com/tenders/UK-UK-London:-Res... To respond to this opportunity, please click here: https://www.delta-esourcing.com/respond/E6E28TZ9KW

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Likely incumbents

Suppliers who won similar work from this buyer in the last 5 years.

5 found
  1. 1

    OptiConsulting Limited

    1 contract wonlatest 16 Dec 2025

    £100,000

    total awarded

  2. 2

    Engineering Support Group Ltd

    1 contract wonlatest 16 Dec 2025

    £120,000

    total awarded

  3. 3

    Ove Arup & Partners Limited

    1 contract wonlatest 9 Dec 2025ends 24 Sept 2026CH 01312453

    £210,000

    total awarded

  4. 4

    Ove Arup and Partners Ltd

    1 contract wonlatest 13 Nov 2025ends 1 Oct 2026CH 01312453

    £200,000

    total awarded

  5. 5

    SYSTRA Limited

    1 contract wonlatest 31 Oct 2025ends 4 May 2026

    £80,000

    total awarded

OptiConsulting Limited is the most likely incumbent based on recency and category match. To win, bidders typically need a clearly differentiated proposition or a price advantage.

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SponsoredEst. 2010
Gladstone & Co AccountantsTax advisers · East Ham, London

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Buyer Profile

Rail Safety Standards Board (RSSB)
Typepublic body
RegionUK
Total tenders33
Total spend£3,756,475
View buyer profile

Key Dates

Published

13 October 2026

Submission deadline

16 November 2026

Notice type

tender

Source

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