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Potteric Carr SFC and 33kv Substation Service Agreement

NETWORK RAIL INFRASTRUCTURE LIMITED

This public procurement record has 1 release in its history.

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19 Aug 2026 at 15:39

UK5 - Transparency Notice
Summary of the contracting process

Network Rail Infrastructure Limited procured a long-term service agreement for the Potteric Carr Static Frequency Converter and 33kV substation. The requirement covers specialist service, repair and maintenance work for the converter system and associated substation assets. Delivery is in the United Kingdom, at the Potteric Carr site. The equipment is a custom-engineered Hitachi converter system, with requirements linked to its control software, telecommunications diagnostics, IGCT and transformer behaviour, remote-monitoring formats and firmware, and specific interfaces. The procurement is classified as works, with the service activity described under repair and maintenance of plant. It was a utilities procurement managed by Network Rail Infrastructure Limited, a central government public authority, with Hitachi Energy UK Limited identified as the supplier.

The procurement has been awarded through a direct award to Hitachi Energy UK Limited under a single-supplier technical-reasons justification. The award is for £3.2 million excluding VAT, or £3.84 million including VAT. The contract period is 14 September 2026 to 13 September 2031, with provision for annual extensions of up to three additional years. One lot was used and is complete. The stated rationale is that the converter is custom engineered and requires proprietary knowledge, Hitachi-specific remote-monitoring formats and firmware, and OEM-trained expertise for root-cause analysis and specialised intervention without compromising asset performance or safety. A contract signature milestone was scheduled for 31 August 2026.

This procurement demonstrates a requirement for specialist electrical infrastructure maintenance where equipment is proprietary and operationally safety-critical. Suppliers competing for comparable work with Network Rail would need demonstrable original-equipment or equivalent technical expertise in static frequency converters, 33kV substations, control software, telecommunications diagnostics, IGCT and transformer behaviour, remote monitoring, firmware and bespoke interfaces. Credible providers would also need the engineering capability to investigate root causes and carry out specialised interventions while protecting asset performance and safety. The awarded supplier’s position indicates that deep product knowledge, trained personnel and the ability to support a long-term service arrangement are important competitive factors. Businesses with relevant original-equipment, authorised-service or highly evidenced specialist maintenance credentials may be well placed for this buyer’s future requirement.

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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/079122-2026
Current Stage
Award
All Stages
Award

Procurement Classification

Notice Type
UK5 - Transparency 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
19 Aug 20261 weeks ago
Submission Deadline
Not specified
Future Notice Date
Not specified
Award Date
19 Aug 20261 weeks ago
Contract Period
14 Sep 2026 - 13 Sep 2031 Over 5 years
Recurrence
Not specified

Notice Status

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

Buyer & Supplier

Contracting Authority (Buyer)

Main Buyer
NETWORK RAIL INFRASTRUCTURE LIMITED
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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