Open tender · Notice 096546-2026

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

Value: £180k
Closes: 16 Nov 2026 (8 days)
Where: London
Lots: 1
Suitable for SMEs: Yes, says the buyer
Contract: 14 Dec 2026 – 18 May 2027

In plain English

RSSB wants a research contract to develop evidence and a transition pathway for harmonising automatic current limitation (ACL) settings across electric rolling stock on the GB rail network, worth £180,000. The work would run from 14 December 2026 to 18 May 2027.

Good fit for: Specialist rail engineering or research consultancies with electrical traction and rolling stock expertise

Written with AI from the official notice. Check the notice before relying on it.

What the buyer says

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:-Research-services./E6E28TZ9KW To respond to this opportunity, please click here: https://www.delta-esourcing.com/respond/E6E28TZ9KW

Read the official notice Tender documents

Getting the documents

delta-esourcing.com (the buyer's own site, usually free to register).

Procedure: Open procedure (Open: anyone can bid, in one stage). Published 13 Oct 2026.

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