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

What the buyer is asking for

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

How this is scored

Published by the buyer. A winning response is written to these weightings, not to the question.

• 30%qualityW1 Understanding and methodology (Max 8 pages PDF; Min 11 font size)
• 30%qualityW2 Expertise and planning (Max 4 pages PDF, excluding CVs; Min 11 font size, excluding CVs)
• 20%qualityW3 Risks, opportunities, and engagement
• 20%priceW4 Cost of project

How contested is this?

Buyers publish how many bids they received. Across 57 comparable procurements we can tell you the typical field size, how often one of these goes uncontested, and whether the buyer awards on price or on quality.

Timeline

4 published dates · Europe/London

1. Tender notice published24 days ago

   13 Oct 2026, 13:28 BST
2. Clarification questions by7 days ago

   30 Oct 2026, 12:00 GMT
3. Submission deadlinein 10 days

   16 Nov 2026, 12:00 GMT
4. Award decision expected byin 24 days

   30 Nov 2026, 23:59 GMT

Commercial outcome and contract awards

Nothing awarded yet

Notice history

1 event · 1 release on Find a Tender

1. Tender notice13 Oct 2026, 13:28 BST096546-2026

Documents

• Tender notice on Find a Tender