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Potteric Carr SFC and 33kv Substation Service Agreement

Network Rail Infrastructure Ltd

This public procurement record has 2 releases in its history.

Award

05 Oct 2026 at 11:16

UK6 - Contract Award Notice
Award

19 Aug 2026 at 15:39

UK5 - Transparency Notice
Summary of the contracting process

Network Rail Infrastructure Limited commissioned a long-term service agreement for the Potteric Carr Static Frequency Converter (SFC) and 33 kV substation. The work is maintenance and repair of the converter and associated substation equipment. The converter is a custom-engineered Hitachi system, with proprietary control software, telecoms diagnostics, IGCT and transformer behaviour, and specific interfaces. Remote monitoring depends on Hitachi formats and firmware. Work relates to the Potteric Carr site in the United Kingdom.

The procurement is complete and was awarded directly to Hitachi Energy UK Limited. The award date was 22 September 2026, and the contract is scheduled to run from 15 October 2026 to 30 September 2031, with options for three annual extensions, up to 5 September 2034. The awarded value is £3.2 million excluding VAT (£3.84 million including VAT). There was one lot. Network Rail used a direct award because the bespoke Hitachi converter requires proprietary technical knowledge and OEM-trained specialists to investigate faults and intervene without compromising asset performance or safety. The award remains active.

For suppliers competing when this requirement returns to market, credibility will depend on specialist capability with the Potteric Carr Hitachi SFC and substation, rather than general electrical maintenance alone. The selected supplier’s advantage was OEM knowledge of the converter’s control software, telecoms diagnostics, IGCT and transformer behaviour, and equipment interfaces, as well as access to the formats and firmware needed for remote monitoring. Suppliers would need to demonstrate they can diagnose root causes and carry out interventions safely while protecting asset performance. The long-term service requirement indicates a need for sustained technical support for a critical, customised power-conversion asset. Experience with the equipment and its proprietary systems is central to competing for this specific work.

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Notice Information

Notice Title

Potteric Carr SFC and 33kv Substation Service Agreement

Notice Description

Provide a long term service agreement (LTSA) at the Potteric Carr Static Frequency Converter(SFC) and 33kV Substation

Procurement Information

The Static Frequency Converter(SFC) is a custom engineered Hitachi converter system, requiring proprietary knowledge of control software, telecoms diagnostics, IGCT/transformer behaviour, and specific interfaces. Remote monitoring connection requirements depend on Hitachi provided formats and firmware. The OEM trained provider can perform root cause analysis and specialised intervention without compromising asset performance or safety.

Notice Details

Publication & Lifecycle

Open Contracting ID
ocds-h6vhtk-06e7e2
Publication Source
Find A Tender Service
Latest Notice
https://www.find-tender.service.gov.uk/Notice/093709-2026
Current Stage
Award
All Stages
Award

Procurement Classification

Notice Type
UK6 - Contract Award Notice
Procurement Type
Standard
Procurement Category
Works
Procurement Method
Direct
Procurement Method Details
Direct award
Tender Suitability
Not specified
Awardee Scale
Large

Common Procurement Vocabulary (CPV)

CPV Divisions

45 - Construction work

CPV Codes

45259000 - Repair and maintenance of plant

Notice Value(s)

Tender Value
Not specified
Lots Value
Not specified
Awards Value
£3,200,000 £1M-£10M
Contracts Value
Not specified

Notice Dates

Publication Date
5 Oct 20263 weeks ago
Submission Deadline
Not specified
Future Notice Date
Not specified
Award Date
22 Sep 20261 months ago
Contract Period
15 Oct 2026 - 30 Sep 2031 4-5 years
Recurrence
Not specified

Notice Status

Tender Status
Complete
Lots Status
Complete
Awards Status
Active
Contracts Status
Not Specified

Buyer & Supplier

Contracting Authority (Buyer)

Main Buyer
Network Rail Infrastructure Ltd
Contact Name
Available with D3 Tenders Premium →
Contact Email
Available with D3 Tenders Premium →
Contact Phone
Available with D3 Tenders Premium →

Buyer Location

Locality
LONDON
Postcode
SE1 8SW
Postcode Area
South East London
Country
England
Major Region (ITL 1)
TLI London
Basic Region (ITL 2)
TLI4 Inner London - East
Small Region (ITL 3)
TLI45 Lambeth
Delivery Location
Not specified
Local Authority
Lambeth
Electoral Ward
Waterloo & South Bank
Westminster Constituency
Vauxhall and Camberwell Green

Supplier Information

Number of Suppliers
1
Supplier Name

Hitachi Energy UK Limited

Further Information

Notice Documents

Open Contracting Data Standard (OCDS)

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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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